Protein
5-methylthioribulose-1-phosphate isomerase
Organism
Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIB 8255 / S1)
Function
Catalyzes the conversion of 5-methylthio-D-ribulose 1-phosphate (MTRu-1P) to a 3:1 mixture of 1-methylthioxylulose 5-phosphate (MTXu-5P) and 1-methylthioribulose 5-phosphate (MTRu-5P) (PubMed:18826254). Involved in the MTA-isoprenoid shunt of the methionine salvage pathway (PubMed:23042035).
Similarity
Belongs to the RuBisCO large chain family. Type IV subfamily.
Sequence
MTDRLRATYRVKATAASIEARAKGIAVEQSVEMPLSAIDDPAVLDGIVGVVEEITERGEDCFEVRLALSTATIGGDAGQLFNMLFGNTSLQDDTVLLDIDLPDDLLASFGGPNIGAAGLRARVGASADRALTCSALKPQGLPPDRLADLARRMALGGLDFIKDDHGMADQAYAPFASRVGAVAAAVDEVNRQTGGQTRYLPSLSGHLDQLRSQVRTGLDHGIDTFLIAPMIVGPSTFHAVVREFPGAAFFAHPTLAGPSRIAPPAHFGKLFRLLGADAVIFPNSGGRFGYSRDTCQAVAEAALGPWGGLHASLPVPAGGMSLARVPEMIATYGPDVIVLIGGNLLEARDRLTEETAAFVASVAGAASRGCGLAP