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(-) Description

Title :  CRYSTAL STRUCTURES OF C2ALPHA-PI3 KINASE PX-DOMAIN DOMAIN INDICATE CONFORMATIONAL CHANGE ASSOCIATED WITH LIGAND BINDING.
 
Authors :  G. N. Parkinson, D. Vines, P. C. Driscoll, S. Djordjevic
Date :  26 Sep 07  (Deposition) - 27 Nov 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Px Domain, Pi3K, Kinase, Transferase, Phosphorylation, Nuclear Protein, Phosphoinositide, Cytoplasm, Cytoplasmic Vesicle, Golgi Apparatus, Membrane, Nucleus, Polymorphism (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  G. N. Parkinson, D. Vines, P. C. Driscoll, S. Djordjevic
Crystal Structures Of Pi3K-C2Alpha Px Domain Indicate Conformational Change Associated With Ligand Binding
Bmc Struct. Biol. V. 8 13 2008
PubMed-ID: 18312637  |  Reference-DOI: 10.1186/1472-6807-8-13
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PHOSPHATIDYLINOSITOL-4-PHOSPHATE 3-KINASE C2 DOMAIN-CONTAINING ALPHA POLYPEPTIDE
    ChainsA
    EC Number2.7.1.154
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET-21B
    Expression System StrainBL21(DE3)PLYSS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentPX-DOMAIN, RESIDUES 1421-1532
    GenePIK3C2A
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymPHOSPHOINOSITIDE 3-KINASE-C2-ALPHA, PTDINS-3- KINASE C2 ALPHA, PI3K-C2ALPHA

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2REA)

(-) Sites  (0, 0)

(no "Site" information available for 2REA)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2REA)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Lys A:1440 -His A:1441
2Thr A:1494 -His A:1495

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2REA)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PXPS50195 PX domain profile.P3C2A_HUMAN1422-1538  1A:1422-1532

(-) Exons   (5, 5)

Asymmetric/Biological Unit (5, 5)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.4cENST000002659704cENSE00002193107chr11:17191288-171902241065P3C2A_HUMAN1-3553550--
1.5ENST000002659705ENSE00000988320chr11:17177176-17177073104P3C2A_HUMAN356-390350--
1.6ENST000002659706ENSE00001320292chr11:17172202-17172045158P3C2A_HUMAN390-443540--
1.7aENST000002659707aENSE00000988322chr11:17170334-17170214121P3C2A_HUMAN443-483410--
1.8ENST000002659708ENSE00000988323chr11:17169175-17169064112P3C2A_HUMAN483-520380--
1.9ENST000002659709ENSE00000988324chr11:17167489-1716741080P3C2A_HUMAN521-547270--
1.10ENST0000026597010ENSE00000988325chr11:17167278-1716721564P3C2A_HUMAN547-568220--
1.12ENST0000026597012ENSE00001151290chr11:17158172-17158029144P3C2A_HUMAN569-616480--
1.13ENST0000026597013ENSE00000988327chr11:17156706-1715665849P3C2A_HUMAN617-633170--
1.14ENST0000026597014ENSE00000988328chr11:17156576-17156366211P3C2A_HUMAN633-703710--
1.15ENST0000026597015ENSE00000988329chr11:17153585-17153463123P3C2A_HUMAN703-744420--
1.16ENST0000026597016ENSE00000988330chr11:17151014-17150847168P3C2A_HUMAN744-800570--
1.17ENST0000026597017ENSE00000988331chr11:17144360-17144249112P3C2A_HUMAN800-837380--
1.18ENST0000026597018ENSE00000988332chr11:17143880-17143735146P3C2A_HUMAN838-886490--
1.19ENST0000026597019ENSE00000988333chr11:17141521-17141333189P3C2A_HUMAN886-949640--
1.20ENST0000026597020ENSE00000988334chr11:17140860-1714076794P3C2A_HUMAN949-980320--
1.21ENST0000026597021ENSE00000988335chr11:17140286-1714019295P3C2A_HUMAN981-1012320--
1.22ENST0000026597022ENSE00000988336chr11:17139218-17139038181P3C2A_HUMAN1012-1072610--
1.23ENST0000026597023ENSE00000988337chr11:17136012-17135908105P3C2A_HUMAN1073-1107350--
1.24ENST0000026597024ENSE00000988338chr11:17134213-1713412193P3C2A_HUMAN1108-1138310--
1.25ENST0000026597025ENSE00000704614chr11:17132108-17131979130P3C2A_HUMAN1139-1182440--
1.26ENST0000026597026ENSE00000704573chr11:17126852-17126716137P3C2A_HUMAN1182-1227460--
1.27ENST0000026597027ENSE00000704536chr11:17124378-17124209170P3C2A_HUMAN1228-1284570--
1.28ENST0000026597028ENSE00000704509chr11:17122981-17122825157P3C2A_HUMAN1284-1336530--
1.29ENST0000026597029ENSE00000704464chr11:17121516-17121407110P3C2A_HUMAN1337-1373370--
1.30ENST0000026597030ENSE00000704418chr11:17118811-17118604208P3C2A_HUMAN1373-1442701A:1421-144222
1.31ENST0000026597031ENSE00000704364chr11:17115932-17115808125P3C2A_HUMAN1443-1484421A:1443-148442
1.32ENST0000026597032ENSE00000704323chr11:17113823-17113706118P3C2A_HUMAN1484-1523401A:1484-152340
1.33ENST0000026597033ENSE00000704297chr11:17113615-1711354373P3C2A_HUMAN1524-1548251A:1524-15329
1.34ENST0000026597034ENSE00000704269chr11:17113203-17113094110P3C2A_HUMAN1548-1584371A:1533-15364
1.35ENST0000026597035ENSE00000704246chr11:17113006-17112881126P3C2A_HUMAN1585-1626420--
1.36ENST0000026597036ENSE00000886078chr11:17111467-171081193349P3C2A_HUMAN1627-1686600--

(-) Sequences/Alignments

Asymmetric/Biological Unit
   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:116
 aligned with P3C2A_HUMAN | O00443 from UniProtKB/Swiss-Prot  Length:1686

    Alignment length:133
                                  1430      1440      1450      1460      1470      1480      1490      1500      1510      1520      1530      1540      1550   
         P3C2A_HUMAN   1421 DGRIKEVSVFTYHKKYNPDKHYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHIKDVAAKRKIELNSYLQSLMNASTDVAECDLVCTFFHPLLRDEKAEGIARSADAGSFS 1553
               SCOP domains d2reaa_ A: automated matches                                                                                                          SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -PX-2reaA01 A:1422-1532                                                                                         --------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeee.........eeeeeeee......eeeeeehhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhh.-----------------.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -PX  PDB: A:1422-1532 UniProt: 1422-1538                                                                              --------------- PROSITE
           Transcript 1 (1) Exon 1.30 [INCOMPLETE]Exon 1.31  PDB: A:1443-1484               ---------------------------------------Exon 1.33 [INCOMPLETE]   ----- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------Exon 1.32  PDB: A:1484-1523             ------------------------1.34   Transcript 1 (2)
                2rea A 1421 DGRIKEVSVFTYHKKYNPDKHYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHIKDVAAKRKIELNSYLQSLMNASTDVAECDLVCTFFH-----------------GSHH 1536
                                  1430      1440      1450      1460      1470      1480      1490      1500      1510      1520      1530 |       -      1533   
                                                                                                                                        1532              1533   

   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)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2REA)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Family: PX (17)
1aPX-2reaA01A:1422-1532

(-) Gene Ontology  (31, 31)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (P3C2A_HUMAN | O00443)
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:0035005    1-phosphatidylinositol-4-phosphate 3-kinase activity    Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4-phosphate + ATP = 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate + ADP + 2 H(+).
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0016301    kinase activity    Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
    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:0035004    phosphatidylinositol 3-kinase activity    Catalysis of the reaction: ATP + a phosphatidylinositol = ADP + a phosphatidylinositol 3-phosphate. This reaction is the addition of a phosphate group to phosphatidylinositol or one of its phosphorylated derivatives at the 3' position of the inositol ring.
    GO:0035091    phosphatidylinositol binding    Interacting selectively and non-covalently with any inositol-containing glycerophospholipid, i.e. phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
    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.
biological process
    GO:0048268    clathrin coat assembly    The process that results in the assembly of clathrin triskelia into the ordered structure known as a clathrin cage.
    GO:0006897    endocytosis    A vesicle-mediated transport process in which cells take up external materials or membrane constituents by the invagination of a small region of the plasma membrane to form a new membrane-bounded vesicle.
    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:0006887    exocytosis    A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
    GO:0008286    insulin receptor signaling pathway    The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
    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: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:0048008    platelet-derived growth factor receptor signaling pathway    The series of molecular signals generated as a consequence of a platelet-derived growth factor receptor binding to one of its physiological ligands.
    GO:0014829    vascular smooth muscle contraction    A process, occurring in the vascular tissue, whereby actin/myosin complex activity generates force through ATP hydrolysis resulting in a change in smooth muscle geometry. This process is always coupled to chemo-mechanical energy conversion.
cellular component
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0030136    clathrin-coated vesicle    A vesicle with a coat formed of clathrin connected to the membrane via one of the clathrin adaptor complexes.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0031410    cytoplasmic vesicle    A vesicle found in the cytoplasm of a cell.
    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:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    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: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: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:0031982    vesicle    Any small, fluid-filled, spherical organelle enclosed by membrane.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        P3C2A_HUMAN | O004432ar5 2iwl 2red

(-) Related Entries Specified in the PDB File

2ar5 THE SAME PROTEIN. NEW DATA COLLECTION, REFINED TO 2.5 ANG. SHOWING DIFFERENT LOOP STRUCTURE.
2red