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GALT6

Gene
GALT6
Protein
Hydroxyproline O-galactosyltransferase GALT6
Organism
Arabidopsis thaliana
Length
681 amino acids
Function
Possesses hydroxyproline O-galactosyltransferase activity. Transfers galactose from UDP-galactose to hydroxyproline residues in the arabinogalactan proteins (AGPs). Is specific for AGPs containing non-contiguous peptidyl hydroxyproline residues. Utilizes UDP-galactose solely as sugar donor. The addition of galactose onto the peptidyl hydroxyproline residues in AGP core proteins represents the first committed step in arabinogalactan polysaccharide addition. AGP glycans play essential roles in both vegetative and reproductive plant growth.
Similarity
Belongs to the glycosyltransferase 31 family.
Mass
77.741 kDa
Sequence
MRKPKLSKLERLEKFDIFVSLSKQRSVQILMAVGLLYMLLITFEIPFVFKTGLSSLSQDPLTRPEKHNSQRELQERRAPTRPLKSLLYQESQSESPAQGLRRRTRILSSLRFDPETFNPSSKDGSVELHKSAKVAWEVGRKIWEELESGKTLKALEKEKKKKIEEHGTNSCSLSVSLTGSDLLKRGNIMELPCGLTLGSHITVVGKPRAAHSEKDPKISMLKEGDEAVKVSQFKLELQGLKAVEGEEPPRILHLNPRLKGDWSGKPVIEQNTCYRMQWGSAQRCEGWRSRDDEETVDGQVKCEKWARDDSITSKEEESSKAASWWLSRLIGRSKKVTVEWPFPFTVDKLFVLTLSAGLEGYHVSVDGKHVTSFPYRTGFTLEDATGLTINGDIDVHSVFAGSLPTSHPSFSPQRHLELSSNWQAPSLPDEQVDMFIGILSAGNHFAERMAVRRSWMQHKLVKSSKVVARFFVALHSRKEVNVELKKEAEFFGDIVIVPYMDSYDLVVLKTVAICEYGAHQLAAKFIMKCDDDTFVQVDAVLSEAKKTPTDRSLYIGNINYYHKPLRQGKWSVTYEEWPEEDYPPYANGPGYILSNDISRFIVKEFEKHKLRMFKMEDVSVGMWVEQFNNGTKPVDYIHSLRFCQFGCIENYLTAHYQSPRQMICLWDKLVLTGKPQCCNMR