Anti-lipopolysaccharide factor binds to bacterial LPS and may specifically inhibit the LPS-mediated activation of the hemolymph coagulation. It has a strong antibacterial effect, especially on the growth of Gram-negative bacteria [1,2]. This entry also includes the antibacterial protein Scygonadin, which has antibacterial activity against the Gram-positive bacterium Micrococcus luteus [3].

1: Identification, cloning, characterization and recombinant expression of an anti-lipopolysaccharide factor from the hemocytes of Indian mud crab, Scylla serrata. Yedery RD, Reddy KV; Fish Shellfish Immunol. 2009;27:275-284. PMID:19490944

2: Antibacterial activity of a synthetic peptide that mimics the LPS binding domain of Indian mud crab, Scylla serrata anti-lipopolysaccharide factor (SsALF) also involved in the modulation of vaginal immune functions through NF-kB signaling. Sharma S, Yedery RD, Patgaonkar MS, Selvaakumar C, Reddy KV; Microb Pathog. 2011;50:179-191. PMID:21195157

3: A male-specific expression gene, encodes a novel anionic antimicrobial peptide, scygonadin, in Scylla serrata. Wang KJ, Huang WS, Yang M, Chen HY, Bo J, Li SJ, Wang GZ; Mol Immunol. 2007;44:1961-1968. PMID:17092560