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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

General Stability

General Stability on EC 2.5.1.17 - corrinoid adenosyltransferase

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
2-mercaptoethanol stabilizes during purification
2-mercaptoethanol stabilizes the enzyme during purfication
dithiothreitol stabilizes the enzyme
-
DTT stabilizes during purification and storage, removal leads to complete loss of activity
repeated freeze-thawing inactivates
secondary structure is retained even in 7 M guanidine hydrochroride
secondary structure stable even at 7 M guanidine hydrochloride as revealed by circular dichroism spectrophotometry, stability may be due to high numbers of ion pairs and ion pair networks around the active site (especially Glu125) and 3fold axis
secondary structure starts melting in presence of 3.5 M guanidine hydrochloride and is completely denatured at 4.5 M as revealed by circular dichroism spectrophotometry, possibly due to lower numbers of ion pairs and ion pair networks around the putative active site and 3fold axis compared to homolog ST1454