SVWC is a family of single-domain von Willebrand factor type C proteins from lower eukaryotes. The canonical pattern of most von Willebrand factor type C (VWC) domains is of ten cysteines, however this family, largely but not exclusively of arthropod proteins, contains only eight. SVWC family proteins respond to environmental challenges, such as bacterial infection and nutritional status. They also are involved in anti-viral immunity, and all of these functions seem linked to SVWC expression being induced by Dicer2.

1: Characterization of peptide components in the venom of the scorpion Liocheles australasiae (Hemiscorpiidae). Miyashita M, Otsuki J, Hanai Y, Nakagawa Y, Miyagawa H; Toxicon. 2007;50:428-437. PMID:17559900

2: Mass spectrometry analysis, amino acid sequence and biological activity of venom\tcomponents from the Brazilian scorpion Opisthacanthus cayaporum. Schwartz EF, Camargos TS, Zamudio FZ, Silva LP, Bloch C Jr, Caixeta F, Schwartz CA, Possani LD; Toxicon. 2008;51:1499-1508. PMID:18502464

3: A further insight into the sialome of the tropical bont tick, Amblyomma variegatum. Ribeiro JM, Anderson JM, Manoukis NC, Meng Z, Francischetti IM; BMC Genomics. 2011;12:136. PMID:21362191

4: Identification and functional characterization of Dicer2 and five single VWC domain proteins of Litopenaeus vannamei. Chen YH, Jia XT, Zhao L, Li CZ, Zhang S, Chen YG, Weng SP, He JG; Dev Comp Immunol. 2011;35:661-671. PMID:21256150