Protein
Sulfoquinovosyl transferase SQD2
Organism
Arabidopsis thaliana
Function
Catalyzes the transfer of the sulfoquinovose moiety from UDP-sulfoquinovose to diacylglycerol during sulfolipid biosynthesis. Sulfolipid contributes to maintaining a negatively charged lipid-water interface, a requirement for proper function of photosynthetic membranes. Sulfolipid may also function as a substitute of anionic phospholipids under phosphate-limited growth conditions.
Similarity
Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 4 subfamily.
Sequence
MTTLSSINLSIPPHLLPSTTNTCSSSSATSCSPPRSSSFVLHSPLSFGHRRLPISKKSKLRFCGVITKEAVSGSNDMTITQVREDDESEIDAPLLDPESLSKPRRIALFVEPSPFAYVSGYKNRFQNFIRYLREMGDEVIVVTTHEGVPEEFYGARVIGSRSFPCPYYQKVPLSLALSPRIISEIARFKPDIIHASSPGVMVFGALAIAKMLSVPIVMSYHTHVPVYIPRYTFSWLVKPMWSIIRFLHRAADLTLVPSAAIGKDLIAAGATAANQLRLWNKGVDSESFNPRFRSQEMRIRLSNGEPEKPLVIHVGRIGVEKSLELLKSVMDKLPEARIAFIGDGPYKEDLEKLFTGMPAVFTGTLQGDELSQAYASGDVFVMPSESETLGLVVLEAMSSGLPVVAARAGGIPDIIPEDQEGKTGFLFNPGDVEDCVTKLRTLLHDRETREIIGKAAREETEKYDWRAATTKIRNEQYSAAIWFWRKKKVHVLGPINWLIKRLFPVPEGNV