ABP125, or SEC31 homolog A, COPII coat complex component, is a human gene encoded by SEC31A. It may also be known as: Protein transport protein Sec31A; ABP130; SEC31-like protein 1; SEC31-related protein A; Web1-like protein; HSPC275; HSPC334; SEC31 homolog A (S. cerevisiae); SEC31L1. The encoded protein has an amino acid length of 1220 and a mass of 133.0 kDa. Other isoforms may exist. ABP125 is a member of the WD repeat SEC31 family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.