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(-) Description

Title :  NMR STUDY OF ITAM PEPTIDE SUBSTRATE
 
Authors :  B. S. Gaul, M. L. Harrison, R. L. Geahlen, C. B. Post
Date :  23 Aug 99  (Deposition) - 31 Aug 99  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A
Keywords :  Lyn Tyrosine Kinase, Itam, Immunoreceptor Tyrosine Activation Motif, Peptide Substate, Immune System (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. S. Gaul, M. L. Harrison, R. L. Geahlen, R. A. Burton, C. B. Post
Substrate Recognition By The Lyn Protein-Tyrosine Kinase. Nmr Structure Of The Immunoreceptor Tyrosine-Based Activation Motif Signaling Region Of The B Cell Antigen Receptor.
J. Biol. Chem. V. 275 16174 2000
PubMed-ID: 10748115  |  Reference-DOI: 10.1074/JBC.M909044199
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - IG-ALPHA ITAM PEPTIDE
    ChainsA
    EngineeredYES
    FragmentRESIDUES 178-189
    Other DetailsSEQUENCE FROM HUMAN IG-ALPHA ITAM
    SyntheticYES

 Structural Features

(-) Chains, Units

  
NMR Structure 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

NMR Structure (2, 2)
No.NameCountTypeFull Name
1ACE1Mod. Amino AcidACETYL GROUP
2NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC2SOFTWAREASP A:12BINDING SITE FOR RESIDUE NH2 A 13

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1CV9)

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1CV9)

(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

(no "Exon" information available for 1CV9)

(-) 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 CD79A_HUMAN | P11912 from UniProtKB/Swiss-Prot  Length:226

    Alignment length:14
                                   192    
          CD79A_HUMAN   183 EDENLYEGLNLDDC 196
               SCOP domains d1cv9a_ A:     SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains -------------- Pfam domains
         Sec.struct. author .............. Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -------------- PROSITE
                 Transcript -------------- Transcript
                 1cv9 A   0 xDENLYEGLNLDDx  13
                            |        9   |
                            |           13-NH2
                            0-ACE         

   Legend:   → Mismatch (orange background)
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  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
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1CV9)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1CV9)

(-) Gene Ontology  (18, 18)

NMR Structure(hide GO term definitions)
Chain A   (CD79A_HUMAN | P11912)
molecular function
    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:0004888    transmembrane signaling receptor activity    Combining with an extracellular or intracellular signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity or state as part of signal transduction.
biological process
    GO:0042113    B cell activation    The change in morphology and behavior of a mature or immature B cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
    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:0042100    B cell proliferation    The expansion of a B cell population by cell division. Follows B cell activation.
    GO:0050853    B cell receptor signaling pathway    A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell.
    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: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: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.
cellular component
    GO:0019815    B cell receptor complex    An immunoglobulin complex that is present in the plasma membrane of B cells and that in its canonical form is composed of two identical immunoglobulin heavy chains and two identical immunoglobulin light chains and a signaling subunit, a heterodimer of the Ig-alpha and Ig-beta proteins.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005887    integral component of plasma membrane    The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the 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:0005771    multivesicular body    A type of endosome in which regions of the limiting endosomal membrane invaginate to form internal vesicles; membrane proteins that enter the internal vesicles are sequestered from the cytoplasm.
    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.

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