PROS1 (Vitamin K-dependent protein S) variants and mutations

PROS1 (also known as Vitamin K-dependent protein S) is a human protein-coding gene encoding a vitamin K-dependent protein S protein. It serves as an essential cofactor for activated protein C and also participates in TAM-receptor signaling involved in clearance of apoptotic cells. Heterozygous deficiency increases susceptibility to venous thrombosis, while severe deficiency can cause neonatal purpura fulminans. This analysis covers 1,168 PROS1 variants and mutations. Of these, 71% have computational variant effect predictions. Disease context includes thrombophilia due to protein S deficiency, autosomal dominant, hereditary thrombophilia due to congenital protein S deficiency, and protein S deficiency. Example PROS1 variants include M1?, M1L, and M1V.

Variant analysis overview

Variant and mutation evidence

Clinical, disease, and population context

Protein structure and variant hotspots

Data sources

Evidence in this analysis draws on EBI Proteins Variation, UniProt, gnomAD v4, EuropePMC, Interaction Network Analysis, Protein Data Bank, AlphaFold DB, gnomAD constraint, Open Targets, MaveDB, LitVar.

Notable PROS1 variants

Examples include M1?, M1L, M1V, R2K, R2S, L4M, L4V, G5S. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.