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EC 5.1.1.6 Details

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EC number

5.1.1.6

Accepted name

threonine racemase

Reaction

L-threonine = D-threonine

Systematic name

threonine racemase

CAS registry number

9024-11-7

Comment

Inverts both chiral centres.

History

created 1961, modified 1981

EC Tree

1 Oxidoreductases

5.1 Racemases and epimerases

5.1.1 Acting on amino acids and derivatives

5.1.1.1 alanine racemase

5.1.1.2 methionine racemase

5.1.1.3 glutamate racemase

5.1.1.4 proline racemase

5.1.1.5 lysine racemase

5.1.1.6 threonine racemase

5.1.1.7 diaminopimelate epimerase

5.1.1.8 4-hydroxyproline epimerase

5.1.1.9 arginine racemase

5.1.1.10 amino-acid racemase

5.1.1.11 phenylalanine racemase (ATP-hydrolysing)

5.1.1.12 ornithine racemase

5.1.1.13 aspartate racemase

5.1.1.14 nocardicin A epimerase

5.1.1.15 2-aminohexano-6-lactam racemase

5.1.1.16 protein-serine epimerase

5.1.1.17 isopenicillin-N epimerase

5.1.1.18 serine racemase

5.1.1.19 O-ureido-serine racemase

5.1.1.20 L-Ala-D/L-Glu epimerase

5.1.1.21 isoleucine 2-epimerase

5.1.1.22 4-hydroxyproline betaine 2-epimerase

5.1.1.23 UDP-N-acetyl-α-D-muramoyl-L-alanyl-L-glutamate epimerase

5.1.1.24 histidine racemase

5.1.2 Acting on hydroxy acids and derivatives

5.1.3 Acting on carbohydrates and derivatives

5.1.99 Acting on other compounds

5.2 cis-trans-Isomerases

5.3 Intramolecular oxidoreductases

5.4 Intramolecular transferases

5.5 Intramolecular lyases

5.6 Isomerases altering macromolecular conformation

5.99 Other isomerases

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Release 2023.1 (January 2023)