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(-) Description

Authors :  A. A. Bhattacharya, R. C. Liddington
Date :  17 Jul 03  (Deposition) - 30 Mar 04  (Release) - 24 Feb 09  (Revision)
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A
Keywords :  Factor B, Von Willebrand Factor, Mac-1, I Domain, A Domain, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  A. A. Bhattacharya, M. L. Lupher Jr. , D. E. Staunton, R. C. Liddington
Crystal Structure Of The A Domain From Complement Factor B Reveals An Integrin-Like Open Conformation.
Structure V. 12 371 2004
PubMed-ID: 15016353  |  Reference-DOI: 10.1016/J.STR.2004.02.012
(for further references see the PDB file header)

(-) Compounds

    EC Number3.4.21.47
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPGEX-2T
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1Q0P)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1Q0P)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_063221F286LCFAB_HUMANDisease (AHUS4)117905900AF261L
2UniProtVAR_063222K323ECFAB_HUMANDisease (AHUS4)121909748AK298E
3UniProtVAR_063662K323QCFAB_HUMANDisease (AHUS4)  ---AK298Q

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
1VWFAPS50234 VWFA domain profile.CFAB_HUMAN270-469  1A:245-432

(-) Exons   (0, 0)

(no "Exon" information available for 1Q0P)

(-) 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:192
 aligned with CFAB_HUMAN | P00751 from UniProtKB/Swiss-Prot  Length:764

    Alignment length:209
                                   277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467         
               SCOP domains d1q0pa_ A: Complement factor B domain                                                                                                                                                                             SCOP domains
               CATH domains 1q0pA00 A:243-451  [code=, no name defined]                                                                                                                                                            CATH domains
               Pfam domains --VWA-1q0pA01 A:245-432                                                                                                                                                                       ------------------- Pfam domains
         Sec.struct. author .eeeeeeee.....hhhhhhhhhhhhhhhhhhhhh.....eeeeeee...eeeee...hhhhhhhhhhhhhhhh............hhhhhhhhhhhhhh........hhhhheeeeeeee.........hhhhhhhhhhhh.........hhh.eeeeeee.....hhhhhhhhh........eee...-----------------.. Sec.struct. author
             SAPs(SNPs) (1) ------------------L------------------------------------E--------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -------------------------------------------------------Q--------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
                    PROSITE --VWFA  PDB: A:245-432 UniProt: 270-469                                                                                                                                                                   ------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                   252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432         -       | 
                                                                                                                                                                                                                       432               450 

   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  (1, 1)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
Clan: vWA-like (60)
Family: VWA (50)

(-) Gene Ontology  (16, 16)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CFAB_HUMAN | P00751)
molecular function
    GO:0001848    complement binding    Interacting selectively and non-covalently with any component or product of the complement cascade.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    GO:0008236    serine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
    GO:0006956    complement activation    Any process involved in the activation of any of the steps of the complement cascade, which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes; the initial steps of complement activation involve one of three pathways, the classical pathway, the alternative pathway, and the lectin pathway, all of which lead to the terminal complement pathway.
    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: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:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    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: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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 Related Entries

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

        CFAB_HUMAN | P007511dle 1rrk 1rs0 1rtk 2ok5 2win 2xwb 2xwj 3hrz 3hs0 5m6w

(-) Related Entries Specified in the PDB File

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