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   Fibrinogen beta chain

SourcePongo pygmaeus (Bornean orangutan)
Taxonomy Pongo pygmaeus Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Pongo.
KeywordsHypothetical protein.
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: 491 AA.

Sequence
MKRMVPWSFHKLKTMKHLLLLLLCVFLVKSQGVNDNEQGLFGARGHRPLDKKREEAPSLR
PAPPPISGGGYRARPAKAAATQKKVERKAPDAGGCLHADPDLGVLCPTGCQLQEALLQQE
RPIRNSVDQLNNDVGTISQTSSSTFQYMYLLKDLWQKRQKQVKDNENVVNEYSSELEKHQ
LYIDETVNSNIPTNLRVLRSILENLRSKIQKLESDVSAQMEYCRTPCTVSCNIPVVSGKE
CEEIIRKGGETSEMYLIQPDSSVKPYRVYCDMNTENGGWTVIQNRQDGSVDFGRKWDPYK
QGFGNVATNTDGKNYCGLPGEYWLGNDKISQLTRMGPTELLIEMEDWKGDKVKAHYGGFT
VQNEANKYQISVNKYRGTAGNALMDGASQLTGENRTMTIHNGMFFSTYDRDNDGWLTTDP
RKQCSKEDGGGWWYNRCHAANPNGRYYWGGQYTWDMAKHGTDDGVVWMNWKGSWYSMKKM
SMKIRPFFPQQ
Accession NumberQ5R535 
InterPro DBIPR002181
NCBICR861041, CAH93131
OMIM105200, 134820, 202400, 134830, 202400
PfamPF00147
PROSITE DBPS00514
SMART DBSM00186



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