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2.5.1.17: corrinoid adenosyltransferase

This is an abbreviated version!
For detailed information about corrinoid adenosyltransferase, go to the full flat file.

Word Map on EC 2.5.1.17

Reaction

2 ATP + 2 cob(II)alamin +

a reduced flavoprotein
= 2 triphosphate + 2 adenosylcob(III)alamin +
an oxidized flavoprotein

Synonyms

ACAT, adenosyltransferase, vitamin B12s, aquacob(I)alamin adenosyltransferase, aquocob(I)alamin adenosyltransferase, ATP: cobalamin adenosyltransferase, ATP:co(I)rrinoid adenosyltransferase, ATP:cob(I)alamin adenosyltransferase, ATP:cob(I)alamin Cobeta-adenosyltransferase, ATP:cob(I)alamin transferase (ATR), ATP:Cob(I)alaminadenosyltransferase, ATP:cobalamin adenosyltransferase, ATP:cobalt(I) corrinoid adenosyltransferase, ATP:corrinoid adenosyltransferase, ATP:corrinoid adenosyltransferase PduO, ATR, cob(I)alamin adenosyltransferase, cob(I)yrinic acid a,c-diamide adenosyltransferase, CobA, CobA-type ATP:Co(I)rrinoid adenosyltransferase, cobalamin adenosyltransferase, CobAMm, cobO mutant SVQ336, cobO mutant SVQ524, cobO mutantSVQ336, EC 1.16.8.1, EutT, EutT adenosyltransferase, hATR, homologeous to PduO-type ATP: cob(I)alamin adenosyltransferase, human adenosyltransferase, human ATP: cob(I)alamin adenosyltransferase, human-type ACA, human-type ATP: co(I)rrinoid adenosyltransferase, human-type ATP: cob(I)alamin adenosyltransferase, LrPduO, methylmalonic aciduria type B, MMAB, MMAB protein, PduO, PduO adenosyltransferase, PduO enzyme, PduO protein, PduO-type ACA, PduO-type adenosine 5'-triphosphate:corrinoid adenosyltransferase, PduO-type ATP: cobalamin adenosyltransferase, PduO-type ATP:Co(I)rrinoid adenosyltransferase, PduO-type ATP:cob(I)alamin adenosyltransferase, PduO-type ATP:corrinoid adenosyltransferase, PduO-type corrinoid adenosyltransferase, ST1454, ST2180, TA1434, vitamin B12s adenosyltransferase

ECTree

     2 Transferases
         2.5 Transferring alkyl or aryl groups, other than methyl groups
             2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
                2.5.1.17 corrinoid adenosyltransferase

Cofactor

Cofactor on EC 2.5.1.17 - corrinoid adenosyltransferase

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COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
CTP
-
about 40% activity compared to ATP
dATP
-
about 25% of the activity with ATP
flavodoxin A
-
in vitro reduced flavodoxin provides an electron to generate the co(I)rrinoid substrate in the CobA active site, modeling of enzyme ligand interaction, residues R9 and R165 are important for CobA-FldA docking but not to catalysis, overview
-
GTP
-
about 5% activity compared to ATP
heme
PduOC apoprotein shows strong heme binding. Octameric assembly with four heme moieities. The four heme groups are highly solvent-exposed and the heme iron is hexa-coordinated with bis-His ligation by histidines from different monomers. The absence of the C-terminal domain in PduO does not affect adenosyltransferase activity in vitro
ITP
-
about 8% activity compared to ATP
UTP
-
about 10% activity compared to ATP
additional information
-
no activity with AMP as cofactor
-