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(-) Description

Title :  CRYSTAL STRUCTURE OF RECOMBINANT HUMAN COMPLEMENT PROTEIN C8GAMMA
 
Authors :  B. Chiswell, L. L. Lovelace, C. Brannen, E. A. Ortlund, L. Lebioda, J. M. Sodetz
Date :  13 Feb 07  (Deposition) - 22 May 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Lipocalin; Beta Barrel, Transport Protein, Ligand Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. Chiswell, L. L. Lovelace, C. Brannen, E. A. Ortlund, L. Lebioda, J. M. Sodetz
Structural Features Of The Ligand Binding Site On Human Complement Protein C8Gamma: A Member Of The Lipocalin Family
Biochim. Biophys. Acta V. 1774 637 2007
PubMed-ID: 17452033  |  Reference-DOI: 10.1016/J.BBAPAP.2007.03.004
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - COMPLEMENT COMPONENT 8, GAMMA POLYPEPTIDE
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET-17B
    Expression System StrainORIGAMI B(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneC8G
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymCOMPLEMENT PROTEIN C8GAMMA

 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 2OVE)

(-) Sites  (0, 0)

(no "Site" information available for 2OVE)

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:76 -A:168

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Leu A:135 -Pro A:136

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric/Biological Unit (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_044319D118GCO8G_HUMANPolymorphism7850844AG98G
2UniProtVAR_014669H124NCO8G_HUMANPolymorphism17613AH104N

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1LIPOCALINPS00213 Lipocalin signature.CO8G_HUMAN41-54  1A:21-34

(-) Exons   (7, 7)

Asymmetric/Biological Unit (7, 7)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1bENST000002241811bENSE00001834506chr9:139839713-139839910198CO8G_HUMAN1-46461A:11-2616
1.2ENST000002241812ENSE00000734163chr9:139840086-139840222137CO8G_HUMAN47-92461A:27-72 (gaps)46
1.3ENST000002241813ENSE00001194952chr9:139840381-13984045171CO8G_HUMAN92-116251A:72-9625
1.4aENST000002241814aENSE00000734168chr9:139840537-139840644108CO8G_HUMAN116-152371A:96-13237
1.6cENST000002241816cENSE00000734170chr9:139840917-139841018102CO8G_HUMAN152-186351A:132-16635
1.7aENST000002241817aENSE00001407255chr9:139841103-13984114139CO8G_HUMAN186-199141A:166-17914
1.7cENST000002241817cENSE00001902507chr9:139841220-139841419200CO8G_HUMAN199-20241A:179-1802

(-) 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:162
 aligned with CO8G_HUMAN | P07360 from UniProtKB/Swiss-Prot  Length:202

    Alignment length:170
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200
           CO8G_HUMAN    31 SPISTIQPKANFDAQQFAGTWLLVAVGSACRFLQEQGHRAEATTLHVAPQGTAMAVSTFRKLDGICWQVRQLYGDTGVLGRFLLQARDARGAVHVVVAETDYQSFAVLYLERAGQLSVKLYARSLPVSDSVLSGFEQRVQEAHLTEDQIFYFPKYGFCEAADQFHVLDEV 200
               SCOP domains d2ovea_ A: automated matches                                                                                                                                               SCOP domains
               CATH domains 2oveA00 A:11-180  [code=2.40.12        8.20, no name defined]                                                                                                              CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhh......hhhhhheeeeeeeee....--------...eeeeeeee..eeeeeeeeee..eeeeeeeeeee.....eeee........eeeeeeee....eeeeeeee..eeeeeeee.....hhhhhhhhhhhhhhh..hhh.eee..........hhh.eee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------G-----N---------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------LIPOCALIN     -------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1b       Exon 1.2  PDB: A:27-72 (gaps) UniProt: 47-92  -----------------------Exon 1.4a  PDB: A:96-132             ---------------------------------Exon 1.7a     - Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------Exon 1.3  PDB: A:72-96   -----------------------------------Exon 1.6c  PDB: A:132-166          ------------1. Transcript 1 (2)
                 2ove A  11 SPISTIQPKANFDAQQFAGTWLLVAVGSAAR--------AEATTLHVAPQGTAMAVSTFRKLDGICWQVRQLYGDTGVLGRFLLQARGARGAVHVVVAETDYQSFAVLYLERAGQLSVKLYARSLPVSDSVLSGFEQRVQEAHLTEDQIFYFPKYGFCEAADQFHVLDEV 180
                                    20        30        40|       50        60        70        80        90       100       110       120       130       140       150       160       170       180
                                                         41       50                                                                                                                                  

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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)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2OVE)

(-) Gene Ontology  (15, 15)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CO8G_HUMAN | P07360)
molecular function
    GO:0001848    complement binding    Interacting selectively and non-covalently with any component or product of the complement cascade.
    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:0019841    retinol binding    Interacting selectively and non-covalently with retinol, vitamin A1, 2,6,6-trimethyl-1-(9'-hydroxy-3',7'-dimethylnona-1',3',5',7'-tetraenyl)cyclohex-1-ene, one of the three components that makes up vitamin A. Retinol is an intermediate in the vision cycle and it also plays a role in growth and differentiation.
    GO:0036094    small molecule binding    Interacting selectively and non-covalently with a small molecule, any low molecular weight, monomeric, non-encoded molecule.
biological process
    GO:0006957    complement activation, alternative pathway    Any process involved in the activation of any of the steps of the alternative pathway of the complement cascade which allows for the direct killing of microbes and the regulation of other immune processes.
    GO:0006958    complement activation, classical pathway    Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes.
    GO:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    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:0030449    regulation of complement activation    Any process that modulates the frequency, rate or extent of complement activation.
cellular component
    GO:0072562    blood microparticle    A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
    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:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:0005579    membrane attack complex    A protein complex produced by sequentially activated components of the complement cascade inserted into a target cell membrane and forming a pore leading to cell lysis via ion and water flow.

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  Cis Peptide Bonds
    Leu A:135 - Pro A:136   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/Swiss-Prot
        CO8G_HUMAN | P073601iw2 1lf7 2ova 2ovd 2qos 2rd7 3ojy

(-) Related Entries Specified in the PDB File

1iw2 1lf7 2ova 2ovd