pdi-3 encodes a protein disulfide isomerase (PDI) required for normal cuticle collagen deposition and, subliminally, for maintenance of normal body shape; PDI-3 has both PDI and calcium-dependent transglutaminase activity in vitro, crosslinking proteins through a gamma-glutamyl epsilon-lysine dual residue; PDI-3 is homologous to the human PDI ERp60, as well as a homolog in the dog heartworm Dirofilaria immitis that is required for larval molting; the joint PDI/transglutaminase activity of PDI-3 is biochemically conserved in nematodes and mammals; pdi-3 is constitutively and broadly expressed, particularly in gut and hypodermis.
Enables protein disulfide isomerase activity and protein-glutamine gamma-glutamyltransferase activity. Involved in several processes, including collagen and cuticulin-based cuticle development; egg-laying behavior; and male anatomical structure morphogenesis. Predicted to be located in endoplasmic reticulum. Expressed in hypodermis; intestine; and seam cell. Human ortholog(s) of this gene implicated in autoimmune hepatitis and liver cirrhosis. Is an ortholog of human PDIA3 (protein disulfide isomerase family A member 3).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.