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Details on Person UniProt:A3C4S4 GME-1

Class:IdReferenceGeneProduct:9682499
_chainChangeLogchain:1-378 for 9682499 added on Fri May 15 2020
_displayNameUniProt:A3C4S4 GME-1
_timestamp2023-11-03 18:00:08
chainchain:1-378
checksum4BAE83BB932C321A
commentFUNCTION Catalyzes a reversible epimerization of GDP-D-mannose that precedes the committed step in the biosynthesis of vitamin C (L-ascorbate), resulting in the hydrolysis of the highly energetic glycosyl-pyrophosphoryl linkage. Able to catalyze 2 distinct epimerization reactions and can release both GDP-L-galactose and GDP-L-gulose from GDP-mannose.CATALYTIC ACTIVITY GDP-alpha-D-mannose = GDP-beta-L-guloseCATALYTIC ACTIVITY GDP-beta-L-gulose = GDP-beta-L-galactoseCOFACTOR Strongly activated by NAD. Activated by NADP. Slightly activated by NADH and NADPH. Inhibited by GDP.BIOPHYSICOCHEMICAL PROPERTIES The catalytic efficiency increases by 2-fold in the presence of NAD(+).PATHWAY Cofactor biosynthesis; L-ascorbate biosynthesis via GDP-alpha-D-mannose pathway; L-ascorbate from GDP-alpha-D-mannose: step 1/5.SUBUNIT Homodimer.SIMILARITY Belongs to the NAD(P)-dependent epimerase/dehydratase family.
created[InstanceEdit:9682524] Gupta, Parul, 2020-04-08
descriptionrecommendedName: GDP-mannose 3,5-epimerase 1 shortName: GDP-Man 3,5-epimerase 1 ecNumber evidence="3"5.1.3.18 alternativeName: OsGME-1
geneNameGME-1
Os10g0417600
LOC_Os10g28200
OsJ_030296
OSJNBa0061K21.15
identifierA3C4S4
isSequenceChangedFALSE
keywordAscorbate biosynthesis
Isomerase
NAD
Reference proteome
modified[InstanceEdit:9682542] Gupta, Parul, 2020-04-08
[InstanceEdit:9688885] Weiser, JD
[InstanceEdit:9698430] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
nameGME-1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierGME1_ORYSJ
B7EX80
Q0IXP2
Q0R4F5
Q109P5
Q338B5
Q5W7P1
Q8S862
sequenceLength378
species[Species:1250427] Oryza sativa subsp. japonica
(referenceEntity)[EntityWithAccessionedSequence:9682506] GDP-D-mannose-3,5-epimerase [cytosol] [Oryza sativa]
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