Alternative Name(s):

Aggretin alpha chain Rhodoaggretin subunit alpha

Species: (Organism)

Calloselasma rhodostoma (Malayan pit viper) (Agkistrodon rhodostoma)

Gene Names:

N/A

Tag info:

N-terminal 6xHis-SUMO-tagged

Target Protein AA Sequence:

GLEDCDFGWSPYDQHCYQAFNEQKTWDEAEKFCRAQENGAHLASIESNGEADFVSWLISQKDELADEDYVWIGLRAQNKEQQCSSEWSDGSSVSYENLIDLHTKKCGALEKLTGFRKWVNYYCEQMHAFVCKLLPY

Expression Region:

1-136aa

Subcellular Location:

Secreted

Tissue Specificity:

Expressed by the venom gland.

Protein Length:

Full Length

Pathway:

Mol. Weight:

31.8 kDa

Purity:

Greater than 90% as determined by SDS-PAGE.

Form:

Liquid or Lyophilized powder

Buffer:

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Research Areas:

Others

Function:

Elicits platelet aggregation by the binding to the C-type lectin domain family 1 member B (CLEC1B/CLEC2). Binding leads to tyrosine phosphorylation in the cytoplasmic tail of CLEC1B, which promotes the binding of spleen tyrosine kinase (Syk), subsequent activation of PLC-gamma-2, and platelet activation and aggregation. Binding to GPIbalpha (GP1BA) and alpha-2/beta-1 (ITGA2/ITGB1) may also induce aggregation, but this is controversial.

Involvement in disease:

Relevance:

Elicits platelet aggregation by the binding to the C-type lectin domain family 1 member B (CLEC1B/CLEC2). Binding leads to tyrosine phosphorylation in the Cytoplasmic domain tail of CLEC1B, which promotes the binding of spleen tyrosine kinase (Syk), subsequent activation of PLC-gamma-2, and platelet activation and aggregation. Binding to GPIbalpha (GP1BA) and alpha-2/beta-1 (ITGA2/ITGB1) may also induce aggregation, but this is controversial.

Reconstitution:

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Protein Families:

Snaclec family

Reference:

"Aggretin, a heterodimeric C-type lectin from Calloselasma rhodostoma (malayan pit viper), stimulates platelets by binding to alpha 2beta 1 integrin and glycoprotein Ib, activating Syk and phospholipase Cgamma 2, but does not involve the glycoprotein VI/Fc receptor gamma chain collagen receptor."Navdaev A., Clemetson J.M., Polgar J., Kehrel B.E., Glauner M., Magnenat E., Wells T.N.C., Clemetson K.J.J. Biol. Chem. 276:20882-20889(2001).