>gnl|CDD|48545 cd02996, PDI_a_ERp44, PDIa family, endoplasmic reticulum protein 44 (ERp44) subfamily; ERp44 is an ER-resident protein, induced during stress, involved in thiol-mediated ER retention. It contains an N-terminal TRX domain, similar to that of PDIa, with a CXFS motif followed by two redox inactive TRX-like domains, homologous to the b and b' domains of PDI. The CXFS motif in the N-terminal domain allows ERp44 to form stable reversible mixed disulfides with its substrates. Through this activity, ERp44 mediates the ER localization of Ero1alpha, a protein that oxidizes protein disulfide isomerases into their active form. ERp44 also prevents the secretion of unassembled cargo protein with unpaired cysteines. It also modulates the activity of inositol 1,4,5-triphosphate type I receptor (IP3R1), an intracellular channel protein that mediates calcium release from the ER to the cytosol.. Length = 108

 Score = 57.6 bits (139), Expect = 8e-10
 Identities = 33/108 (30%), Positives = 62/108 (57%), Gaps = 7/108 (6%)

Query: 2   SALKVDTKSFDSEVLECSNPVVVDFWASWCRPCVKLSPIIDDIADEL------ADKVKIT 55
             + + + + D ++L+ +  V+V+F+A WCR    L PI ++ A ++      A KV   
Sbjct: 2   EIVSLTSGNID-DILQSAELVLVNFYADWCRFSQMLHPIFEEAAAKIKEEFPDAGKVVWG 60

Query: 56  KLDIEESSEISTRYQISSIPTLILFKDGKVIDRMMPGASSQSDIIEWI 103
           K+D ++ S+I+ RY+I+  PTL LF++G ++ R   G  S   + E++
Sbjct: 61  KVDCDKESDIADRYRINKYPTLKLFRNGMMMKREYRGQRSVEALAEFV 108