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   Fibrinogen beta chain

SourceDanio rerio (zebrafish)
Taxonomy Danio rerio Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Cypriniformes; Cyprinidae; Danio.
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: 485 AA.

Sequence
MKLVLLLCLCAVGALAQDDYDDYGEGKKEAKEVVDPRGHRPVSRGRETYSPGPVSQPPIS
GGTRYRGRPTAAPVGKAVQEKEEQPESGGCNHMSEKMGVLCPTGCELKKALIKQERNVKP
TVEQLKRAVDDLTQSTNSIHGYVLDMTAEVAQRQKVSEGNGLVVDQYTDSLETQHAYIKD
TVDVTFPQNIKVLQGVLDKIREKIQRLEKAITTQRAKCQAPCKVTCPIPVVSGKECEDII
RKGGEDSQMYIIRPDPLGTPYKVFCDQTSKNGGWVLIQNRMDGSVDFGRRWDDYRRGFGN
IAFDVGKGHCQTPGEYWLGNDRISQLSKMGATELLVEMEDWSGSKVYAQYEQFSMQGEAS
NYILGVGRYSGTAGNTFLEGATELFGENRTMTIHNGMMFSTYDRDNDKWIPGDPSKQCSK
EDGGGWWYNRCHSCNPNGRYYWGGAYTKYMAKHGTDDGIVWMNWKGSWYSLKTISMKIRP
YFKQK
Accession NumberQ6NYE1 
PubMed ID12477932 
Ensembl DBENSDARG00000008969
InterPro DBIPR002181
NCBIBC066629, AAH66629
OMIM105200, 134820, 202400, 134830, 202400
PfamPF00147
SMART DBSM00186
UniGeneDr.8505



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