Anti-Spm antibodies can be readily obtained from commercial sources. The Spm protein is a reported synonym for the human gene NPC1, encoding NPC intracellular cholesterol transporter 1. The full-length protein is 142,167 daltons in mass with 2 identified isoforms. This protein is reported to contain sites of glycosylation. Visit the antibody supplier page for key details, including validated applications and target specificity.