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2.5.1.49: O-acetylhomoserine aminocarboxypropyltransferase

This is an abbreviated version!
For detailed information about O-acetylhomoserine aminocarboxypropyltransferase, go to the full flat file.

Word Map on EC 2.5.1.49

Reaction

O-acetyl-L-homoserine
+
methanethiol
=
L-methionine
 +
acetate

Synonyms

AHS, EC 4.2.99.10, gamma-cyano-alpha-aminobutyric acid synthase, Homocysteine synthase, MetC, methionine synthase, MetY, O-acetyl-L-homoserine (thiol)-lyase, O-acetyl-L-homoserine acetate-lyase (adding methanethiol), O-acetyl-L-homoserine sulfhydrolase, o-acetyl-L-homoserine sulfhydrylase, O-acetylhomoserine sulfhydrolase, O-acetylhomoserine sulfhydrylase, OAH, OAH SHase, OAH SHLase, OAH sulfhydrylase, OAH-OAS sulfhydrylase, oah2 gene product, OAHS, OAS-OAH sulfhydrylase, Q187D4

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)
                2.5.1.49 O-acetylhomoserine aminocarboxypropyltransferase

Specific Activity

Specific Activity on EC 2.5.1.49 - O-acetylhomoserine aminocarboxypropyltransferase

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.0272
-
cell-free extract
0.0479
-
after heat treatment
0.06
Q93I77
cysthathione beta-lyase reaction
0.108
Corynebacterium acetophilum
-
O-alkylhomoserine synthesizing activity
0.37
-
after DEAE-cellufine A-500m treatment
0.58
Q93I77
L-homoserine as substrate
0.72
Q93I77
O-succinyl-L-homoserine as substrate
1.02
-
substrate O-acetyl-L-serine
1.33
Q93I77
L-serine as substrate
1.57
Q93I77
O-phospho-L-serine as substrate
14.3
Q76K51
after heat treatment at 65°C
14.5
-
after Phenyl-Toyopearl 650M treatment
16.7
Corynebacterium acetophilum
-
O-acetylhomoserine sulfhydrylase activity
17.2
-
after sephacryl S-200 HR treatment
2.12
Q93I77
O-acetyl-L-serine as substrate
28.3
-
mutant strain No. 17, O-acetylserine sulfhydrylase activity
29.9
-
recombinant enzyme purified from Escherichia coli
3.17
Q76K51
crude extract
36
Q76K51
Q Sepharose pool
4.2
-
O-acetylhomoserine sulfhydrylation
40.7
Q93I77
recombinant enzyme
480
-
substrate H2S, pH 7.8, 30°C
49.82
Q93I77
O-acetyl-L-homoserine as substrate
6.88
-
substrate O-acetyl-L-homoserine
61
-
substrate dimethyldisulfide, pH 7.8, 30°C
63
-
substrate methanethiol, pH 7.8, 30°C
67.7
Q76K51
phenyl Sepharose pool
7.45
-
mutant strain No. 17, O-acetylhomoserine sulfhydrylase activity
7.7
-
O-acetylhomoserine methylsulfhydrylation