Protein
Thiol:disulfide interchange protein HelX
Organism
Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Function
Required for disulfide bond formation in some periplasmic proteins. Also acts as a disulfide oxidoreductase in cytochromes c biogenesis. The cysteines of apocytochromes c must be in the reduced state for covalent linkage between the two moieties to occur (By similarity).
Similarity
Belongs to the thioredoxin family. DsbE subfamily.
Sequence
MAKPLMFLPLLVMAGFVGAGYFAMQQNDPNAMPTALAGKEAPAVRLEPLGAEAPFTDADLRDGKIKLVNFWASWCAPCRVEHPNLIGLKQDGIEIMGVNWKDTPDQAQGFLAEMGSPYTRLGADPGNKMGLDWGVAGVPETFVVDGAGRILTRIAGPLTEDVITKKIDPLLAGTAD