*Form: This item requires custom production and lead time is between 5-9 weeks. We can custom produce according to your specifications.; *Accession#: P81990.1; P81990; *Uniprot Summary: Function: Blocks contraction of smooth muscle elicited by high potassium-induced depolarization, but does not block caffein-stimulated contraction. May target voltage-gated calcium channels on smooth muscle By similarity.Subcellular location: Secreted. Tissue specificity: Expressed by the venom gland.Sequence similarities: Belongs to the CRISP family.