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(-) Description

Title :  STAPHYLOCOCCUS AUREUS COMPLEMENT SUBVERSION PROTEIN SBI-IV IN COMPLEX WITH COMPLEMENT FRAGMENT C3D REVEALING AN ALTERNATIVE BINDING MODE
 
Authors :  E. A. Clark, S. Crennell, A. Upadhyay, J. D. Mackay, S. Bagby, J. M. Van D
Date :  13 Nov 09  (Deposition) - 01 Dec 10  (Release) - 18 Sep 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A,Q
Keywords :  Immune System, Immune Response, Innate Immunity, Complement Pathway, Inflammatory Response (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. A. Clark, S. Crennell, A. Upadhyay, A. V. Zozulya, J. D. Mackay, D. I. Svergun, S. Bagby, J. M. Van Den Elsen
A Structural Basis For Staphylococcal Complement Subversion: X-Ray Structure Of The Complement- Binding Domain Of Staphylococcus Aureus Protein Sbi In Complex With Ligand C3D.
Mol. Immunol. V. 48 452 2011
PubMed-ID: 21055811  |  Reference-DOI: 10.1016/J.MOLIMM.2010.09.017

(-) Compounds

Molecule 1 - COMPLEMENT C3D FRAGMENT
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET15B
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentC3D, RESIDUES 996-1303
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
 
Molecule 2 - IGG-BINDING PROTEIN
    ChainsQ
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPQE30
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentSBI-IV, RESIDUES 198-266
    Organism ScientificSTAPHYLOCOCCUS AUREUS
    Organism Taxid1280
    SynonymSBI

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AQ

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

Asymmetric/Biological Unit (1, 3)
No.NameCountTypeFull Name
1GOL3Ligand/IonGLYCEROL

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETRP A:91 , GLU A:134 , PRO A:137 , VAL A:138 , GLN A:141 , ILE A:144BINDING SITE FOR RESIDUE GOL A 401
2AC2SOFTWAREGLU A:167 , TYR A:208 , GLN A:256 , GLN A:291 , GLN A:295 , HOH A:2256 , HOH A:2257BINDING SITE FOR RESIDUE GOL A 402
3AC3SOFTWARETHR A:20 , PRO A:21 , SER A:22 , GLN A:27 , ILE A:30 , GLY A:31 , HOH A:2258 , HOH A:2259 , HOH A:2260 , ILE Q:18BINDING SITE FOR RESIDUE GOL A 403

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:115 -A:172

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Phe A:51 -Gly A:52

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (7, 7)

Asymmetric/Biological Unit (7, 7)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_063655R1042LCO3_HUMANDisease (AHUS5)  ---AR56L
2UniProtVAR_063216A1094VCO3_HUMANDisease (AHUS5)121909584AA108V
3UniProtVAR_063217D1115NCO3_HUMANDisease (AHUS5)121909585AD129N
4UniProtVAR_063218C1158WCO3_HUMANDisease (AHUS5)  ---AC172W
5UniProtVAR_063219Q1161KCO3_HUMANDisease (AHUS5)  ---AQ175K
6UniProtVAR_022761D1216NCO3_HUMANUnclassified  ---AD230N
7UniProtVAR_019207G1224DCO3_HUMANPolymorphism11569534AG238D

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_2_MACROGLOBULINPS00477 Alpha-2-macroglobulin family thiolester region signature.CO3_HUMAN1007-1015  1A:21-29

(-) Exons   (7, 7)

Asymmetric/Biological Unit (7, 7)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.3aENST000002459073aENSE00001938285chr19:6720693-6720527167CO3_HUMAN1-25250--
1.4ENST000002459074ENSE00001053574chr19:6719414-6719222193CO3_HUMAN25-89650--
1.5ENST000002459075ENSE00000858140chr19:6718423-6718258166CO3_HUMAN90-145560--
1.6aENST000002459076aENSE00001053592chr19:6718175-671810571CO3_HUMAN145-168240--
1.7ENST000002459077ENSE00000858137chr19:6714457-671436395CO3_HUMAN169-200320--
1.8bENST000002459078bENSE00001053577chr19:6714259-671417783CO3_HUMAN200-228290--
1.9ENST000002459079ENSE00001053565chr19:6714093-671400391CO3_HUMAN228-258310--
1.11ENST0000024590711ENSE00001053527chr19:6713520-6713418103CO3_HUMAN258-292350--
1.12bENST0000024590712bENSE00000858133chr19:6713326-6713200127CO3_HUMAN293-335430--
1.13ENST0000024590713ENSE00001053519chr19:6712634-6712519116CO3_HUMAN335-373390--
1.14bENST0000024590714bENSE00001053582chr19:6712417-6712268150CO3_HUMAN374-423500--
1.15ENST0000024590715ENSE00000858130chr19:6711207-6710998210CO3_HUMAN424-493700--
1.16bENST0000024590716bENSE00001159750chr19:6710856-6710650207CO3_HUMAN494-562690--
1.17bENST0000024590717bENSE00000858128chr19:6709853-6709695159CO3_HUMAN563-615530--
1.18ENST0000024590718ENSE00000858127chr19:6707940-6707811130CO3_HUMAN616-659440--
1.19ENST0000024590719ENSE00001053520chr19:6707548-670747772CO3_HUMAN659-683250--
1.20ENST0000024590720ENSE00001053532chr19:6707284-6707087198CO3_HUMAN683-749670--
1.21cENST0000024590721cENSE00001053537chr19:6702590-6702482109CO3_HUMAN749-785370--
1.22ENST0000024590722ENSE00001053579chr19:6702223-670213886CO3_HUMAN785-814300--
1.23bENST0000024590723bENSE00001053525chr19:6697805-6697663143CO3_HUMAN814-861480--
1.23dENST0000024590723dENSE00000858122chr19:6697567-6697355213CO3_HUMAN862-932710--
1.24bENST0000024590724bENSE00000858121chr19:6696670-669660467CO3_HUMAN933-955230--
1.25ENST0000024590725ENSE00001053553chr19:6696476-669639087CO3_HUMAN955-984300--
1.26ENST0000024590726ENSE00000858119chr19:6694645-6694442204CO3_HUMAN984-1052691A:11-6656
1.27ENST0000024590727ENSE00000858118chr19:6693498-669342376CO3_HUMAN1052-1077261A:66-9126
1.28cENST0000024590728cENSE00000858117chr19:6693094-6692935160CO3_HUMAN1077-1130541A:91-14454
1.29ENST0000024590729ENSE00000858116chr19:6690738-669064099CO3_HUMAN1131-1163331A:145-17733
1.31aENST0000024590731aENSE00000858115chr19:6686913-6686757157CO3_HUMAN1164-1216531A:178-23053
1.31dENST0000024590731dENSE00001504968chr19:6686298-6686135164CO3_HUMAN1216-1270551A:230-28455
1.32ENST0000024590732ENSE00001159688chr19:6685157-6684999159CO3_HUMAN1271-1323531A:285-30117
1.33ENST0000024590733ENSE00000858111chr19:6684845-668478660CO3_HUMAN1324-1343200--
1.34aENST0000024590734aENSE00001053551chr19:6684661-668457191CO3_HUMAN1344-1374310--
1.35aENST0000024590735aENSE00000858109chr19:6684450-668439952CO3_HUMAN1374-1391180--
1.36bENST0000024590736bENSE00000858108chr19:6682240-668215388CO3_HUMAN1391-1420300--
1.37ENST0000024590737ENSE00000858107chr19:6682041-668195290CO3_HUMAN1421-1450300--
1.38ENST0000024590738ENSE00000858106chr19:6680274-6680169106CO3_HUMAN1451-1486360--
1.40aENST0000024590740aENSE00000858105chr19:6679507-667941890CO3_HUMAN1486-1516310--
1.41aENST0000024590741aENSE00000858104chr19:6679219-667913684CO3_HUMAN1516-1544290--
1.42ENST0000024590742ENSE00000858103chr19:6678466-667838384CO3_HUMAN1544-1572290--
1.43ENST0000024590743ENSE00000858102chr19:6678298-6678163136CO3_HUMAN1572-1617460--
1.44cENST0000024590744cENSE00001159829chr19:6678034-6677846189CO3_HUMAN1617-1663470--

(-) 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:291
 aligned with CO3_HUMAN | P01024 from UniProtKB/Swiss-Prot  Length:1663

    Alignment length:291
                                  1006      1016      1026      1036      1046      1056      1066      1076      1086      1096      1106      1116      1126      1136      1146      1156      1166      1176      1186      1196      1206      1216      1226      1236      1246      1256      1266      1276      1286 
           CO3_HUMAN    997 AERLKHLIVTPSGCGEQNMIGMTPTVIAVHYLDETEQWEKFGLEKRQGALELIKKGYTQQLAFRQPSSAFAAFVKRAPSTWLTAYVVKVFSLAVNLIAIDSQVLCGAVKWLILEKQKPDGVFQEDAPVIHQEMIGGLRNNNEKDMALTAFVLISLQEAKDICEEQVNSLPGSITKAGDFLEANYMNLQRSYTVAIAGYALAQMGRLKGPLLNKFLTTAKDKNRWEDPGKQLYNVEATSYALLALLQLKDFDFVPPVVRWLNEQRYYGGGYGSTQATFMVFQALAQYQKDAP 1287
               SCOP domains d2wy7a_ A: Thio-ester containing domain (TED) from Complement C3, aka C3d or C3dg                                                                                                                                                                                                                   SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh................hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhh.............hhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh...hhhhhhhhhhhh.hhh......hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------L---------------------------------------------------V--------------------N------------------------------------------W--K------------------------------------------------------N-------D--------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------ALPHA_2_M-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.26  PDB: A:11-66 UniProt: 984-1052 [INCOMPLETE]  ------------------------Exon 1.28c  PDB: A:91-144 UniProt: 1077-1130          Exon 1.29  PDB: A:145-177        Exon 1.31a  PDB: A:178-230 UniProt: 1164-1216        ------------------------------------------------------Exon 1.32         Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------Exon 1.27  PDB: A:66-91   ------------------------------------------------------------------------------------------------------------------------------------------Exon 1.31d  PDB: A:230-284 UniProt: 1216-1270          ----------------- Transcript 1 (2)
                2wy7 A   11 AERLKHLIVTPSGAGEQNMIGMTPTVIAVHYLDETEQWEKFGLEKRQGALELIKKGYTQQLAFRQPSSAFAAFVKRAPSTWLTAYVVKVFSLAVNLIAIDSQVLCGAVKWLILEKQKPDGVFQEDAPVIHQEMIGGLRNNNEKDMALTAFVLISLQEAKDICEEQVNSLPGSITKAGDFLEANYMNLQRSYTVAIAGYALAQMGRLKGPLLNKFLTTAKDKNRWEDPGKQLYNVEATSYALLALLQLKDFDFVPPVVRWLNEQRYYGGGYGSTQATFMVFQALAQYQKDAP  301
                                    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300 

Chain Q from PDB  Type:PROTEIN  Length:66
                                                                                                   
               SCOP domains ------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------ Transcript
                2wy7 Q   12 VSIEKAIVRHDERVKSANDAISKLNEKDSIENRRLAQREVNKAPMDVKEHLQKQLDALVAQKDAEK   77
                                    21        31        41        51        61        71      

   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 2WY7)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2WY7)

(-) Gene Ontology  (47, 47)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CO3_HUMAN | P01024)
molecular function
    GO:0031715    C5L2 anaphylatoxin chemotactic receptor binding    Interacting selectively and non-covalently with a C5L2 anaphylatoxin chemotactic receptor.
    GO:0048037    cofactor binding    Interacting selectively and non-covalently with a cofactor, a substance that is required for the activity of an enzyme or other protein. Cofactors may be inorganic, such as the metal atoms zinc, iron, and copper in certain forms, or organic, in which case they are referred to as coenzymes. Cofactors may either be bound tightly to active sites or bind loosely with the substrate.
    GO:0004866    endopeptidase inhibitor activity    Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
    GO:0008289    lipid binding    Interacting selectively and non-covalently with a lipid.
    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: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: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).
biological process
    GO:0007186    G-protein coupled receptor signaling pathway    A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
    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: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: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:0006631    fatty acid metabolic process    The chemical reactions and pathways involving fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis.
    GO:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    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:0006954    inflammatory response    The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0070374    positive regulation of ERK1 and ERK2 cascade    Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
    GO:0045745    positive regulation of G-protein coupled receptor protein signaling pathway    Any process that activates or increases the frequency, rate or extent of G-protein coupled receptor protein signaling pathway activity.
    GO:0001970    positive regulation of activation of membrane attack complex    Any process that activates, maintains or increases the frequency, rate or extent of the activation of the membrane attack complex components of the complement cascade.
    GO:0045766    positive regulation of angiogenesis    Any process that activates or increases angiogenesis.
    GO:2000427    positive regulation of apoptotic cell clearance    Any process that activates or increases the frequency, rate or extent of apoptotic cell clearance.
    GO:0048639    positive regulation of developmental growth    Any process that activates, maintains or increases the rate of developmental growth.
    GO:0010828    positive regulation of glucose transport    Any process that increases the frequency, rate or extent of glucose transport. Glucose transport is the directed movement of the hexose monosaccharide glucose into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0010884    positive regulation of lipid storage    Any process that increases the rate, frequency or extent of lipid storage. Lipid storage is the accumulation and maintenance in cells or tissues of lipids, compounds soluble in organic solvents but insoluble or sparingly soluble in aqueous solvents. Lipid reserves can be accumulated during early developmental stages for mobilization and utilization at later stages of development.
    GO:0050766    positive regulation of phagocytosis    Any process that activates or increases the frequency, rate or extent of phagocytosis.
    GO:0001934    positive regulation of protein phosphorylation    Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
    GO:0001798    positive regulation of type IIa hypersensitivity    Any process that activates or increases the frequency, rate or extent of type IIa hypersensitivity, a type of inflammatory response.
    GO:0010575    positive regulation of vascular endothelial growth factor production    Any process that increases or activates the frequency, rate, or extent of production of vascular endothelial growth factor.
    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.
    GO:0050776    regulation of immune response    Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
    GO:0010866    regulation of triglyceride biosynthetic process    Any process that modulates the rate, frequency, or extent of triglyceride biosynthesis. Triglyceride biosynthesis is the collection of chemical reactions and pathways resulting in the formation of triglyceride, any triester of glycerol.
    GO:0032355    response to estradiol    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 stimulus by estradiol, a C18 steroid hormone hydroxylated at C3 and C17 that acts as a potent estrogen.
    GO:0043627    response to estrogen    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 stimulus by an estrogen, C18 steroid hormones that can stimulate the development of female sexual characteristics.
    GO:0051384    response to glucocorticoid    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 glucocorticoid stimulus. Glucocorticoids are hormonal C21 corticosteroids synthesized from cholesterol with the ability to bind with the cortisol receptor and trigger similar effects. Glucocorticoids act primarily on carbohydrate and protein metabolism, and have anti-inflammatory effects.
    GO:0032026    response to magnesium ion    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 magnesium ion stimulus.
    GO:0032570    response to progesterone    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 progesterone stimulus.
    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:0002507    tolerance induction    A process that directly activates any of the steps required for tolerance, a physiologic state in which the immune system does not react destructively against the components of an organism that harbors it or against antigens that are introduced to it.
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)

UniProtKB/Swiss-Prot
        CO3_HUMAN | P010241c3d 1ghq 1w2s 2a73 2a74 2gox 2i07 2ice 2icf 2noj 2qki 2wii 2win 2wy8 2xqw 2xwb 2xwj 3d5r 3d5s 3g6j 3l3o 3l5n 3nms 3oed 3ohx 3oxu 3rj3 3t4a 4hw5 4hwj 4i6o 4m76 4ont 4zh1 5fo7 5fo8 5fo9 5foa 5fob 5m6w 5o32 5o35

(-) Related Entries Specified in the PDB File

1c3d X-RAY CRYSTAL STRUCTURE OF C3D: A C3 FRAGMENT AND LIGAND FOR COMPLEMENT RECEPTOR 2
1ghq CR2-C3D COMPLEX STRUCTURE
1w2s SOLUTION STRUCTURE OF CR2 SCR 1-2 IN ITS COMPLEX WITH C3D BY X-RAY SCATTERING
2a73 HUMAN COMPLEMENT COMPONENT C3
2a74 HUMAN COMPLEMENT COMPONENT C3C
2hr0 STRUCTURE OF COMPLEMENT C3B: INSIGHTS INTO COMPLEMENTACTIVATION AND REGULATION
2wii COMPLEMENT C3B IN COMPLEX WITH FACTOR H DOMAINS 1-4
2win C3 CONVERTASE (C3BBB) STABILIZED BY SCIN
2wy8 STAPHYLOCOCCUS AUREUS COMPLEMENT SUBVERSION PROTEIN SBI-IV IN COMPLEX WITH COMPLEMENT FRAGMENT C3D