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  Protein S

SourceOryctolagus cuniculus (rabbit)
Taxonomy Oryctolagus cuniculus Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Lagomorpha; Leporidae; Oryctolagus.
KeywordsBlood coagulation; Calcium; Cleavage on pair of basic residues; Disulfide bond; EGF-like domain; Gamma-carboxyglutamic acid; Glycoprotein; Hydroxylation; Repeat; Secreted; Zymogen.
Details
Function: Anticoagulant plasma protein; it is a cofactor to activated protein C in the degradation of coagulation factors Va and VIIIa. It helps to prevent coagulation and stimulating fibrinolysis.

Post-translational modification: The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate and asparagine is (R) stereospecific within EGF domains (By similarity).

Similarity: Contains 4 EGF-like domains. Contains 1 Gla (gamma-carboxy-glutamate) domain. Contains 2 laminin G-like domains.

Subcellular location: Secreted.

Subunit structure: Interacts with C4b-binding protein, a regulator of the complex system. In rabbit plasma however, protein S appears to be present only in free form.

Tissue specificity: Plasma.

Sequence length: 646 AA.

Sequence
GHASQVLVRKRRANSMLEETKKGNLERECIEELCNKEEAREVFENDPETDYFYPKYLGCL
GSFRAKLFTATRRSANGYPDLRSCVNAIPDQCNPLPCSEEGYLNCKDGQATFTCICKPGW
QGEKCEIDINECKDPTNINGGCSQICDNTAGSYHCSCKSGFVMLANEKDCKDMDECSVKP
SVCGTAVCKNTPGDFECECSEGYRYNPTAKSCEDIDECSENMCAQLCVNYPGGYSCYCDG
KKGFKLAQDKKSCEAVPVCLPLDLDKNYQLLYLAEQFVGAVLYLKFHLPEITRFSAEFDF
RTYDSEGVILYAESLDHSTWFLIALRQGKIEIQFKNDYAAQITTGGQVINDGLWNMVSVE
ELEHSVSIKIAQEPVMNINKPGSLFKPTNGFLETKVYFAGLPRKVENALIRPINPRLDGC
MRGWNLMKQGASGVKEIIQQKQKKHCLVTVEKGSYYPGSGIAQFHIDYNNLSYVEDWQVN
VTLNIRPSTGTGVMLTLVSGNTLPFALSLVQSTSETSQDILVSVENRVIYQLESISLCSG
QQSQLEFSVSRNHLELSTPLVKDVIYSEDLQRHLAVLDEAMKGTVTTYLGGLPEVPFNAT
PVNAFYNGCMEVNINGVQLDLDEAISKHNDIRAHSCPSVWNDKTNS
Accession NumberP98118 
PubMed ID8223642 
eggNOG DBmaNOG05573
CATHG3DSA:4.10.740.10, G3DSA:2.60.120.200
GO DB0005576, 0005509, 0007596
InterPro DBIPR017857, IPR002383, IPR008985, IPR013320, IPR006210, IPR013032, IPR000152, IPR000742, IPR001881, IPR013091, IPR018097, IPR000294, IPR001791, IPR012679, IPR012680
NCBIZ26485, CAA81259
OMIM105200, 134820, 202400, 134830, 202400, 134850, 202400, 176930, 601367, 134390, 188055, 227400, 600880, 601367, 612309, 227500, 134500, 306700, 300746, 306900, 227600, 176860, 188050, 612283, 612304, 176880, 612336
PfamPF07645, PF00594, PF00054, PF02210
PROSITE DBPS00010, PS00022, PS01186, PS50026, PS01187, PS00011, PS50998, PS50025
SMART DBSM00181, SM00179, SM00069, SM00282
UniGeneOcu.6257



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