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(-) Description

Title :  NMR STUDY OF THE SH3 DOMAIN FROM FYN PROTO-ONCOGENE TYROSINE KINASE COMPLEXED WITH THE SYNTHETIC PEPTIDE P2L CORRESPONDING TO RESIDUES 91-104 OF THE P85 SUBUNIT OF PI3-KINASE, FAMILY OF 25 STRUCTURES
 
Authors :  D. A. Renzoni, D. J. R. Pugh, G. Siligardi, P. Das, C. J. Morton, C. Rossi, M. D. Waterfield, I. D. Campbell, J. E. Ladbury
Date :  05 Dec 97  (Deposition) - 25 Feb 98  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A,B  (25x)
Keywords :  Complex (Phosphotransferase/Peptide), Sh3 Domain, Polyproline-Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. A. Renzoni, D. J. Pugh, G. Siligardi, P. Das, C. J. Morton, C. Rossi, M. D. Waterfield, I. D. Campbell, J. E. Ladbury
Structural And Thermodynamic Characterization Of The Interaction Of The Sh3 Domain From Fyn With The Proline-Rich Binding Site On The P85 Subunit Of Pi3-Kinase.
Biochemistry V. 35 15646 1996
PubMed-ID: 8961927  |  Reference-DOI: 10.1021/BI9620969
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PRO-PRO-ARG-PRO-LEU-PRO-VAL-ALA-PRO-GLY-SER-SER- LYS-THR
    ChainsA
    EngineeredYES
    FragmentP85 SUBUNIT OF PI3-KINASE, RESIDUES 91 - 104
    SynonymP2L
 
Molecule 2 - FYN
    ChainsB
    EC Number2.7.1.112
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPGEX
    Expression System StrainBL21 (DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentSH3 DOMAIN, RESIDUES 82 - 148
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  
NMR Structure (25x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1A0N)

(-) Sites  (0, 0)

(no "Site" information available for 1A0N)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1A0N)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1A0N)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1A0N)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1A0N)

(-) Exons   (2, 2)

NMR Structure (2, 2)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.9bENST000003686679bENSE00001414024chr6:112115089-112114826264FYN_HUMAN-00--
1.11ENST0000036866711ENSE00001344307chr6:112101838-11210176970FYN_HUMAN-00--
1.16bENST0000036866716bENSE00002172897chr6:112041265-112041008258FYN_HUMAN1-83830--
1.17eENST0000036866717eENSE00002146962chr6:112035646-11203555097FYN_HUMAN83-115331B:84-125 (gaps)42
1.19gENST0000036866719gENSE00002180388chr6:112029223-11202912599FYN_HUMAN115-148341B:125-15127
1.20dENST0000036866720dENSE00002152369chr6:112025305-112025202104FYN_HUMAN148-183360--
1.21bENST0000036866721bENSE00002179099chr6:112024237-112024088150FYN_HUMAN183-233510--
1.22bENST0000036866722bENSE00002142092chr6:112021471-112021307165FYN_HUMAN233-288560--
1.24eENST0000036866724eENSE00001880540chr6:112017659-112017480180FYN_HUMAN288-348610--
1.25aENST0000036866725aENSE00002170268chr6:112015907-11201583177FYN_HUMAN348-373260--
1.26ENST0000036866726ENSE00002155280chr6:112015731-112015578154FYN_HUMAN374-425520--
1.28aENST0000036866728aENSE00002153373chr6:111995833-111995702132FYN_HUMAN425-469450--
1.29eENST0000036866729eENSE00002112481chr6:111983150-111982485666FYN_HUMAN469-537690--

(-) Sequences/Alignments

NMR Structure
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:14
 aligned with P85A_HUMAN | P27986 from UniProtKB/Swiss-Prot  Length:724

    Alignment length:14
                                   100    
           P85A_HUMAN    91 PPRPLPVAPGSSKT 104
               SCOP domains -------------- SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains -------------- Pfam domains
         Sec.struct. author .............. Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -------------- PROSITE
                 Transcript -------------- Transcript
                 1a0n A  91 PPRPLPVAPGSSKT 104
                                   100    

Chain B from PDB  Type:PROTEIN  Length:58
 aligned with FYN_HUMAN | P06241 from UniProtKB/Swiss-Prot  Length:537

    Alignment length:58
                                    93       103       113       123       133        
            FYN_HUMAN    84 VTLFVALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARSLTTGETGYIPSNYVAPV 141
               SCOP domains d1a0nb_ B: Fyn proto-oncogene tyrosine kinase, SH3 domain  SCOP domains
               CATH domains 1a0nB00 B:84-151 SH3 Domains                               CATH domains
               Pfam domains ---------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee..................eeeeee.....eeeee......eeeeehhheee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.17e  PDB: B:84-125 (gaps)-------------------------- Transcript 1 (1)
           Transcript 1 (2) -------------------------------Exon 1.19g  PDB: B:125-151  Transcript 1 (2)
                 1a0n B  84 VTLFVALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARSLTTGETGYIPSNYVAPV 151
                                 ||103       113       123       133       143        
                                89|                                                   
                                100                                                   

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

NMR Structure

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1A0N)

(-) Gene Ontology  (151, 170)

NMR Structure(hide GO term definitions)
Chain A   (P85A_HUMAN | P27986)
molecular function
    GO:0016303    1-phosphatidylinositol-3-kinase activity    Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol + ATP = a 1-phosphatidyl-1D-myo-inositol 3-phosphate + ADP + 2 H(+).
    GO:0046935    1-phosphatidylinositol-3-kinase regulator activity    Modulates the activity of the enzyme 1-phosphatidylinositol-3-kinase activity.
    GO:0043125    ErbB-3 class receptor binding    Interacting selectively and non-covalently with the protein-tyrosine kinase receptor ErbB-3/HER3.
    GO:0043559    insulin binding    Interacting selectively and non-covalently with insulin, a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms.
    GO:0005158    insulin receptor binding    Interacting selectively and non-covalently with the insulin receptor.
    GO:0043560    insulin receptor substrate binding    Interacting selectively and non-covalently with any of the insulin receptor substrate (IRS) proteins, adaptor proteins that bind to the transphosphorylated insulin and insulin-like growth factor receptors, are themselves phosphorylated and in turn recruit SH2 domain-containing signaling molecules to form a productive signaling complex.
    GO:0005159    insulin-like growth factor receptor binding    Interacting selectively and non-covalently with the insulin-like growth factor receptor.
    GO:0005168    neurotrophin TRKA receptor binding    Interacting selectively and non-covalently with the neurotrophin TRKA receptor.
    GO:0043548    phosphatidylinositol 3-kinase binding    Interacting selectively and non-covalently with a phosphatidylinositol 3-kinase, any enzyme that catalyzes the addition of a phosphate group to an inositol lipid at the 3' position of the inositol ring.
    GO:0035014    phosphatidylinositol 3-kinase regulator activity    Modulates the activity of any of the phosphatidylinositol 3-kinases (PI3Ks). Regulatory subunits can link a PI3K catalytic subunit to upstream signaling events and help position the catalytic subunits close to their lipid substrates.
    GO:0036312    phosphatidylinositol 3-kinase regulatory subunit binding    Interacting selectively and non-covalently with a regulatory subunit of phosphatidylinositol 3-kinase. The regulatory subunit associates with the catalytic subunit to regulate both its activity and subcellular location.
    GO:0046934    phosphatidylinositol-4,5-bisphosphate 3-kinase activity    Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + ATP = a 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate + ADP + 2 H(+).
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
    GO:0019903    protein phosphatase binding    Interacting selectively and non-covalently with any protein phosphatase.
    GO:0008134    transcription factor binding    Interacting selectively and non-covalently with a transcription factor, any protein required to initiate or regulate transcription.
    GO:0005068    transmembrane receptor protein tyrosine kinase adaptor activity    The binding activity of a molecule that brings together a transmembrane receptor protein tyrosine kinase and one or more other molecules, permitting them to function in a coordinated way.
biological process
    GO:0030183    B cell differentiation    The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity.
    GO:0038128    ERBB2 signaling pathway    A series of molecular signals initiated by binding of a ligand to a member of the ERBB family of receptors on the surface of a cell, where the signal is transmitted by ERBB2. The pathway ends with regulation of a downstream cellular process, e.g. transcription. ERBB2 receptors are themselves unable to bind to ligands, but act as a signal-amplifying tyrosine kinase within a heterodimeric pair.
    GO:0038095    Fc-epsilon receptor signaling pathway    A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
    GO:0038096    Fc-gamma receptor signaling pathway involved in phagocytosis    An Fc-gamma receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes.
    GO:0051531    NFAT protein import into nucleus    The directed movement of NFAT (nuclear factor of activated T cells) proteins, a family of transcription factors, from the cytoplasm into the nucleus. NFAT proteins are dephosphorylated in the cytoplasm by activated calcineurin, which leads to their translocation across the nuclear membrane.
    GO:0031295    T cell costimulation    The process of providing, via surface-bound receptor-ligand pairs, a second, antigen-independent, signal in addition to that provided by the T cell receptor to augment T cell activation.
    GO:0050852    T cell receptor signaling pathway    A series of molecular signals initiated by the cross-linking of an antigen receptor on a T cell.
    GO:0001678    cellular glucose homeostasis    A cellular homeostatic process involved in the maintenance of an internal steady state of glucose within a cell or between a cell and its external environment.
    GO:0034644    cellular response to UV    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ultraviolet radiation (UV light) stimulus. Ultraviolet radiation is electromagnetic radiation with a wavelength in the range of 10 to 380 nanometers.
    GO:0032869    cellular response to insulin stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an insulin stimulus. Insulin is a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms.
    GO:0007173    epidermal growth factor receptor signaling pathway    A series of molecular signals initiated by binding of a ligand to the tyrosine kinase receptor EGFR (ERBB1) on the surface of a cell. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0008625    extrinsic apoptotic signaling pathway via death domain receptors    A series of molecular signals in which a signal is conveyed from the cell surface to trigger the apoptotic death of a cell. The pathway starts with a ligand binding to a death domain receptor on the cell surface, and ends when the execution phase of apoptosis is triggered.
    GO:0060396    growth hormone receptor signaling pathway    The series of molecular signals generated as a consequence of growth hormone receptor binding to its physiological ligand.
    GO:0008286    insulin receptor signaling pathway    The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
    GO:0048009    insulin-like growth factor receptor signaling pathway    The series of molecular signals generated as a consequence of the insulin-like growth factor receptor binding to one of its physiological ligands.
    GO:0008630    intrinsic apoptotic signaling pathway in response to DNA damage    A series of molecular signals in which an intracellular signal is conveyed to trigger the apoptotic death of a cell. The pathway is induced by the detection of DNA damage, and ends when the execution phase of apoptosis is triggered.
    GO:0050900    leukocyte migration    The movement of a leukocyte within or between different tissues and organs of the body.
    GO:0043066    negative regulation of apoptotic process    Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
    GO:0007162    negative regulation of cell adhesion    Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
    GO:0001953    negative regulation of cell-matrix adhesion    Any process that stops, prevents, or reduces the rate or extent of cell adhesion to the extracellular matrix.
    GO:0045671    negative regulation of osteoclast differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of osteoclast differentiation.
    GO:0014065    phosphatidylinositol 3-kinase signaling    A series of reactions within the signal-receiving cell, mediated by the intracellular phosphatidylinositol 3-kinase (PI3K). Many cell surface receptor linked signaling pathways signal through PI3K to regulate numerous cellular functions.
    GO:0006661    phosphatidylinositol biosynthetic process    The chemical reactions and pathways resulting in the formation of phosphatidylinositol, any glycophospholipid in which the sn-glycerol 3-phosphate residue is esterified to the 1-hydroxyl group of 1D-myo-inositol.
    GO:0046854    phosphatidylinositol phosphorylation    The process of introducing one or more phosphate groups into a phosphatidylinositol, any glycerophosphoinositol having one phosphatidyl group esterified to one of the hydroxy groups of inositol.
    GO:0036092    phosphatidylinositol-3-phosphate biosynthetic process    The chemical reactions and pathways resulting in the formation of phosphatidylinositol-3-phosphate, a phosphatidylinositol monophosphate carrying the phosphate group at the 3-position.
    GO:0048015    phosphatidylinositol-mediated signaling    A series of molecular signals in which a cell uses a phosphatidylinositol-mediated signaling to convert a signal into a response. Phosphatidylinositols include phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
    GO:0030168    platelet activation    A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
    GO:0033120    positive regulation of RNA splicing    Any process that activates or increases the frequency, rate or extent of RNA splicing.
    GO:0030335    positive regulation of cell migration    Any process that activates or increases the frequency, rate or extent of cell migration.
    GO:1900103    positive regulation of endoplasmic reticulum unfolded protein response    Any process that activates or increases the frequency, rate or extent of endoplasmic reticulum unfolded protein response.
    GO:0090004    positive regulation of establishment of protein localization to plasma membrane    Any process that increases the frequency, rate or extent of the directed movement of a protein to a specific location in the plasma membrane.
    GO:0046326    positive regulation of glucose import    Any process that activates or increases the frequency, rate or extent of the import of the hexose monosaccharide glucose into a cell or organelle.
    GO:2001275    positive regulation of glucose import in response to insulin stimulus    Any process that activates or increases the frequency, rate or extent of glucose import in response to insulin stimulus.
    GO:0042993    positive regulation of transcription factor import into nucleus    Any process that activates or increases the frequency, rate or extent of the movement of a transcription factor from the cytoplasm to the nucleus.
    GO:0045944    positive regulation of transcription from RNA polymerase II promoter    Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0032760    positive regulation of tumor necrosis factor production    Any process that activates or increases the frequency, rate, or extent of tumor necrosis factor production.
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:0050821    protein stabilization    Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation.
    GO:0015031    protein transport    The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0090003    regulation of establishment of protein localization to plasma membrane    Any process that modulates the frequency, rate or extent of the directed movement of a protein to a specific location in the plasma membrane.
    GO:0043551    regulation of phosphatidylinositol 3-kinase activity    Any process that modulates the frequency, rate or extent of phosphatidylinositol 3-kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to an inositol lipid at the 3' position of the inositol ring.
    GO:0014066    regulation of phosphatidylinositol 3-kinase signaling    Any process that modulates the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
    GO:0051492    regulation of stress fiber assembly    Any process that modulates the frequency, rate or extent of the assembly of a stress fiber, a bundle of microfilaments and other proteins found in fibroblasts.
    GO:0034976    response to endoplasmic reticulum stress    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stress acting at the endoplasmic reticulum. ER stress usually results from the accumulation of unfolded or misfolded proteins in the ER lumen.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
    GO:0048010    vascular endothelial growth factor receptor signaling pathway    Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:0005911    cell-cell junction    A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals.
    GO:0005801    cis-Golgi network    The network of interconnected tubular and cisternal structures located at the convex side of the Golgi apparatus, which abuts the endoplasmic reticulum.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:1990578    perinuclear endoplasmic reticulum membrane    The membrane of the perinuclear endoplasmic reticulum, which is the portion of endoplasmic reticulum, the intracellular network of tubules and cisternae, that occurs near the nucleus.
    GO:0005942    phosphatidylinositol 3-kinase complex    A protein complex capable of phosphatidylinositol 3-kinase activity and containing subunits of any phosphatidylinositol 3-kinase (PI3K) enzyme. These complexes are divided in three classes (called I, II and III) that differ for their presence across taxonomic groups and for the type of their constituents. Catalytic subunits of phosphatidylinositol 3-kinase enzymes are present in all 3 classes; regulatory subunits of phosphatidylinositol 3-kinase enzymes are present in classes I and III; adaptor proteins have been observed in class II complexes and may be present in other classes too.
    GO:0005943    phosphatidylinositol 3-kinase complex, class IA    A class I phosphatidylinositol 3-kinase complex that possesses 1-phosphatidylinositol-4-phosphate 3-kinase activity; comprises a catalytic class IA phosphoinositide 3-kinase (PI3K) subunit and an associated SH2 domain-containing regulatory subunit that is a member of a family of related proteins often called p85 proteins. Through the interaction with the SH2-containing adaptor subunits, Class IA PI3K catalytic subunits are linked to tyrosine kinase signaling pathways.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain B   (FYN_HUMAN | P06241)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0042609    CD4 receptor binding    Interacting selectively and non-covalently with a CD4, a receptor found on the surface of T cells, monocytes and macrophages.
    GO:0042610    CD8 receptor binding    Interacting selectively and non-covalently with a CD8, a receptor found on the surface of thymocytes and cytotoxic and suppressor T-lymphocytes.
    GO:0001664    G-protein coupled receptor binding    Interacting selectively and non-covalently with a G-protein coupled receptor.
    GO:0005088    Ras guanyl-nucleotide exchange factor activity    Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ras superfamily. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
    GO:0042608    T cell receptor binding    Interacting selectively and non-covalently with a T cell receptor, the antigen-recognizing receptor on the surface of T cells.
    GO:0046875    ephrin receptor binding    Interacting selectively and non-covalently with an ephrin receptor.
    GO:0070851    growth factor receptor binding    Interacting selectively and non-covalently with a growth factor receptor.
    GO:0044325    ion channel binding    Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
    GO:0016301    kinase activity    Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004715    non-membrane spanning protein tyrosine kinase activity    Catalysis of the reaction: ATP + protein L-tyrosine = ADP + protein L-tyrosine phosphate by a non-membrane spanning protein.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0051428    peptide hormone receptor binding    Interacting selectively and non-covalently with a receptor for peptide hormones.
    GO:0043548    phosphatidylinositol 3-kinase binding    Interacting selectively and non-covalently with a phosphatidylinositol 3-kinase, any enzyme that catalyzes the addition of a phosphate group to an inositol lipid at the 3' position of the inositol ring.
    GO:0046934    phosphatidylinositol-4,5-bisphosphate 3-kinase activity    Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + ATP = a 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate + ADP + 2 H(+).
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0032403    protein complex binding    Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004672    protein kinase activity    Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
    GO:0004713    protein tyrosine kinase activity    Catalysis of the reaction: ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
    GO:0005102    receptor binding    Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0015631    tubulin binding    Interacting selectively and non-covalently with monomeric or multimeric forms of tubulin, including microtubules.
biological process
    GO:0038096    Fc-gamma receptor signaling pathway involved in phagocytosis    An Fc-gamma receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes.
    GO:0000165    MAPK cascade    An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
    GO:0042110    T cell activation    The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
    GO:0031295    T cell costimulation    The process of providing, via surface-bound receptor-ligand pairs, a second, antigen-independent, signal in addition to that provided by the T cell receptor to augment T cell activation.
    GO:0050852    T cell receptor signaling pathway    A series of molecular signals initiated by the cross-linking of an antigen receptor on a T cell.
    GO:0050798    activated T cell proliferation    The expansion of a T cell population following activation by an antigenic stimulus.
    GO:0002250    adaptive immune response    An immune response mediated by cells expressing specific receptors for antigen produced through a somatic diversification process, and allowing for an enhanced secondary response to subsequent exposures to the same antigen (immunological memory).
    GO:0007411    axon guidance    The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues.
    GO:0007596    blood coagulation    The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers.
    GO:0006816    calcium ion transport    The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0030154    cell differentiation    The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
    GO:0016477    cell migration    The controlled self-propelled movement of a cell from one site to a destination guided by molecular cues. Cell migration is a central process in the development and maintenance of multicellular organisms.
    GO:0007166    cell surface receptor signaling pathway    A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0071363    cellular response to growth factor stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a growth factor stimulus.
    GO:0071375    cellular response to peptide hormone stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a peptide hormone stimulus. A peptide hormone is any of a class of peptides that are secreted into the blood stream and have endocrine functions in living animals.
    GO:0036120    cellular response to platelet-derived growth factor stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a platelet-derived growth factor stimulus.
    GO:0071560    cellular response to transforming growth factor beta stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a transforming growth factor beta stimulus.
    GO:0007417    central nervous system development    The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain and spinal cord. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.
    GO:0048813    dendrite morphogenesis    The process in which the anatomical structures of a dendrite are generated and organized. A dendrite is a freely branching protoplasmic process of a nerve cell.
    GO:0050966    detection of mechanical stimulus involved in sensory perception of pain    The series of events involved in the perception of pain in which a mechanical stimulus is received and converted into a molecular signal.
    GO:0048013    ephrin receptor signaling pathway    The series of molecular signals generated as a consequence of an ephrin receptor binding to an ephrin.
    GO:0007631    feeding behavior    Behavior associated with the intake of food.
    GO:0030900    forebrain development    The process whose specific outcome is the progression of the forebrain over time, from its formation to the mature structure. The forebrain is the anterior of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes especially the cerebral hemispheres, the thalamus, and the hypothalamus and especially in higher vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functions).
    GO:0002376    immune system process    Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0035556    intracellular signal transduction    The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
    GO:0007612    learning    Any process in an organism in which a relatively long-lasting adaptive behavioral change occurs as the result of experience.
    GO:0050900    leukocyte migration    The movement of a leukocyte within or between different tissues and organs of the body.
    GO:0007275    multicellular organism development    The biological process whose specific outcome is the progression of a multicellular organism over time from an initial condition (e.g. a zygote or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
    GO:2001240    negative regulation of extrinsic apoptotic signaling pathway in absence of ligand    Any process that stops, prevents or reduces the frequency, rate or extent of extrinsic apoptotic signaling pathway in absence of ligand.
    GO:0010629    negative regulation of gene expression    Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:0043524    negative regulation of neuron apoptotic process    Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons.
    GO:0042177    negative regulation of protein catabolic process    Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the breakdown of a protein by the destruction of the native, active configuration, with or without the hydrolysis of peptide bonds.
    GO:0031397    negative regulation of protein ubiquitination    Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
    GO:0001764    neuron migration    The characteristic movement of an immature neuron from germinal zones to specific positions where they will reside as they mature.
    GO:0038083    peptidyl-tyrosine autophosphorylation    The phosphorylation by a protein of one or more of its own tyrosine amino acid residues, or a tyrosine residue on an identical protein.
    GO:0018108    peptidyl-tyrosine phosphorylation    The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.
    GO:0046854    phosphatidylinositol phosphorylation    The process of introducing one or more phosphate groups into a phosphatidylinositol, any glycerophosphoinositol having one phosphatidyl group esterified to one of the hydroxy groups of inositol.
    GO:0048015    phosphatidylinositol-mediated signaling    A series of molecular signals in which a cell uses a phosphatidylinositol-mediated signaling to convert a signal into a response. Phosphatidylinositols include phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
    GO:0016310    phosphorylation    The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
    GO:0030168    platelet activation    A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
    GO:0043547    positive regulation of GTPase activity    Any process that activates or increases the activity of a GTPase.
    GO:0043123    positive regulation of I-kappaB kinase/NF-kappaB signaling    Any process that activates or increases the frequency, rate or extent of I-kappaB kinase/NF-kappaB signaling.
    GO:0010976    positive regulation of neuron projection development    Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
    GO:0014068    positive regulation of phosphatidylinositol 3-kinase signaling    Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
    GO:1900182    positive regulation of protein localization to nucleus    Any process that activates or increases the frequency, rate or extent of protein localization to nucleus.
    GO:0046777    protein autophosphorylation    The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:0042981    regulation of apoptotic process    Any process that modulates the occurrence or rate of cell death by apoptotic process.
    GO:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0008360    regulation of cell shape    Any process that modulates the surface configuration of a cell.
    GO:0050690    regulation of defense response to virus by virus    Any viral process that modulates the frequency, rate, or extent of the antiviral response of the host cell or organism.
    GO:0014066    regulation of phosphatidylinositol 3-kinase signaling    Any process that modulates the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
    GO:0042493    response to drug    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0045471    response to ethanol    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ethanol stimulus.
    GO:0002223    stimulatory C-type lectin receptor signaling pathway    Any series of molecular signals generated as a consequence of binding to a C-type lectin receptor capable of cellular activation.
    GO:0007169    transmembrane receptor protein tyrosine kinase signaling pathway    A series of molecular signals initiated by the binding of an extracellular ligand to a receptor on the surface of the target cell where the receptor possesses tyrosine kinase activity, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0048010    vascular endothelial growth factor receptor signaling pathway    Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:0005884    actin filament    A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
    GO:0071944    cell periphery    The part of a cell encompassing the cell cortex, the plasma membrane, and any external encapsulating structures.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005768    endosome    A vacuole to which materials ingested by endocytosis are delivered.
    GO:0031234    extrinsic component of cytoplasmic side of plasma membrane    The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
    GO:0043231    intracellular membrane-bounded organelle    Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0045121    membrane raft    Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0014069    postsynaptic density of dendrite    An electron dense network of proteins within and adjacent to the postsynaptic membrane of the dendrite of asymetric synapses. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.

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 Related Entries

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        FYN_HUMAN | P062411aot 1aou 1avz 1azg 1efn 1fyn 1g83 1m27 1nyf 1nyg 1shf 1zbj 2dq7 2mqi 2mrj 2mrk 3h0f 3h0h 3h0i 3ua6 3ua7 4d8d 4eik 4u17 4u1p 4znx
        P85A_HUMAN | P279861azg 1h9o 1pbw 1pht 1pic 1pks 1pkt 2iug 2iuh 2iui 2rd0 2v1y 3hhm 3hiz 3i5r 3i5s 4a55 4jps 4l1b 4l23 4l2y 4ovu 4ovv 4waf 4ykn 4zop 5aul 5fi4 5gji 5itd 5m6u 5sw8 5swg 5swo 5swp 5swr 5swt 5sx8 5sx9 5sxa 5sxb 5sxc 5sxd 5sxe 5sxf 5sxi 5sxj 5sxk 5ubt 5uk8 5ukj 5ul1 5vlr

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1A0N)