1.21.4.2: glycine reductase
This is an abbreviated version!
For detailed information about glycine reductase, go to the full flat file.
Word Map on EC 1.21.4.2
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1.21.4.2
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selenocysteine
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clostridial
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sticklandii
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eubacterium
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acidaminophilum
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selenium-dependent
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purinolyticum
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selenocysteine-containing
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d-proline
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opal
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selenols
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selenoenzymes
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selenoether
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sporogenes
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selenium-containing
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cylindrosporum
- 1.21.4.2
- selenocysteine
-
clostridial
- sticklandii
- eubacterium
- acidaminophilum
-
selenium-dependent
- purinolyticum
-
selenocysteine-containing
- d-proline
-
opal
-
selenols
-
selenoenzymes
-
selenoether
- sporogenes
-
selenium-containing
- cylindrosporum
Reaction
Synonyms
glycine reductase, GrdA
ECTree
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Systematic Name
Systematic Name on EC 1.21.4.2 - glycine reductase
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acetyl-phosphate ammonia:thioredoxin disulfide oxidoreductase (glycine-forming)
The reaction is observed only in the direction of glycine reduction. The enzyme from Eubacterium acidaminophilum consists of subunits A, B and C. Subunit B contains selenocysteine and a pyruvoyl group, and is responsible for glycine binding and ammonia release. Subunit A, which also contains selenocysteine, is reduced by thioredoxin, and is needed to convert the carboxymethyl group into a ketene equivalent, in turn used by subunit C to produce acetyl phosphate. Only subunit B distinguishes this enzyme from EC 1.21.4.3 (sarcosine reductase) and EC 1.21.4.4 (betaine reductase).