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   Fibrinogen gamma chain

SourceBos taurus (cattle)
Taxonomy Bos taurus Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Laurasiatheria; Cetartiodactyla; Ruminantia; Pecora; Bovidae; Bovinae; Bos.
Keywords3D-structure; Blood coagulation; Calcium; Coiled coil; Direct protein sequencing; Disulfide bond; Glycoprotein; Secreted; Signal.
Details
Function: Fibrinogen has a double function: yielding monomers that polymerize into fibrin and acting as a cofactor in platelet aggregation.

Post-translational modification: Conversion of fibrinogen to fibrin is triggered by thrombin, which cleaves fibrinopeptides A and B from alpha and beta chains, and thus exposes the N-terminal polymerization sites responsible for the formation of the soft clot. The soft clot is converted into the hard clot by factor XIIIA which catalyzes the epsilon-(gamma-glutamyl)lysine cross-linking between gamma chains (stronger) and between alpha chains (weaker) of different monomers.

Similarity: Contains 1 fibrinogen C-terminal domain.

Subcellular location: Secreted.

Subunit structure: Heterohexamer; disulfide linked. Contains 2 sets of 3 non-identical chains (alpha, beta and gamma). The 2 heterotrimers are in head to head conformation with the N-termini in a small central domain (By similarity).

Sequence length: 444 AA.

Sequence
MSWSSHPPSVIFYILSLLSSACLAYVATRDNCCILDERFGSYCPTTCGIADFLNNYQTSV
DKDLRTLEGILYQVENKTSEARELVKAIQISYNPDQPSKPNNIESATKNSKSMMEEIMKY
ETLISTHESTIRFLQEVYNSNSQKIVNLRDKVVQLEANCQEPCQDTVKIHDVTGRDCQDV
ANKGAKESGLYFIRPLKAKQFLVYCEIDGSGNGWTVFQKRLDGSLDFKKNWIQYKEGFGH
LSPTGTGNTEFWLGNEKIHLISTQSSIPYVLRIQLEDWNGRTSTADYASFKVTGENDKYR
LTYAYFIGGDAGDAFDGYDFGDDSSDKFFTSHNGMQFSTWDSDNDKYDGNCAEQVGIGWW
MNKCHAGHLNGVYYQGGTYSKTSTPNGYDNGIIWATWKSRWYSMKKTTMKIIPLNRLAIG
EGQQHQLGGAKQVGVEHHVEIEYD
Accession NumberP12799 
PubMed ID2771651, 836881, 11946783, 1942070, 10618375, 11593005 
CTD DB280792
eggNOG DBmaNOG06739
Ensembl DBENSBTAT00000008877
CATHG3DSA:3.90.215.10, G3DSA:4.10.530.10, G3DSA:1.20.5.50
GeneID DB280792
GO DB0005577, 0005509, 0030674, 0005102, 0030168, 0051258, 0007165
InterPro DBIPR002181, IPR014716, IPR014715, IPR012290, IPR014814, IPR020837
IPI DBIPI00699860
KEGGbta:280792
NCBIX15556, CAA33562, NP_776336
OMIM105200, 134820, 202400, 134830, 202400, 134850, 202400
PDB1DEQ_C, 1DEQ_F, 1DEQ_P, 1DEQ_S, 1JY2_P, 1JY2_S, 1JY3_P, 1JY3_S
PfamPF08702, PF00147
PROSITE DBPS00514, PS51406
SMART DBSM00186
UniGeneBt.48905



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