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5.1.1.1: alanine racemase

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

Word Map on EC 5.1.1.1

Reaction

L-alanine
=
D-alanine

Synonyms

1SFT, AAR, alanine racemase, AlaR, ALR, alr-2, ALR1, ALR2, Alr2 racemase, AlrA, AlrAba, AlrBax, AlrMtb, alrTt, ARL, BA0252, BAS0238, CBL/ALR, CdAlr, cystathionine beta-lyase, D-alanine racemase, DadB, DadX, dadXOF4, dal1, EcAlr, EcCBL, EfAlaR, L-Alanine racemase, L-Alanine:D-alanine racemase, MBalr1, MBAlr2, MetC, More, MurI, OEOE_1641, PDB, Racemase, alanine, tAlaRac, TmCBL, wMelCBL

ECTree

     5 Isomerases
         5.1 Racemases and epimerases
             5.1.1 Acting on amino acids and derivatives
                5.1.1.1 alanine racemase

Temperature Range

Temperature Range on EC 5.1.1.1 - alanine racemase

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TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0 - 40
-
0°C: about 25% of maximal activity, 40°C: about 45% of maximal activity
0 - 60
about 30% of maximal activity at 0°C and at 60°C, in absence of pyridoxal 5'-phosphate
0 - 70
Alkalihalophilus pseudofirmus
between 20 to 50°C the enzyme activity is 75-100%, at 0°C activity is about 28% and at 70°C activity is 20%
20 - 50
-
20°C: about 60% of maximal activity, 50°C, about 35% of maximal activity
25 - 50
30 - 50
30°C, 45% of maximal activity, 50°C: about 50% of maximal activity, in presence of an excess amount of pyridoxal 5'-phosphate, 0.4 mM
30 - 60
30°C and 60°C: approx. 20% of max. activity, dal, extracts are assayed (in triplicate) by monitoring NADH production in spectrophotometric assay with L-alanine dehydrogenase
30 - 70
30°C: approx. 25% of max. activity, 70°C: approx. 8% of max. activity, yncD, extracts are assayed (in triplicate) by monitoring NADH production in spectrophotometric assay with L-alanine dehydrogenase
35 - 100
-
35°C: about 75% of maximal activity, 100°C: about 55% of maximal activity
40 - 70
-
40°C: about 60% of maximal activity, 70°C: about 50% of maximal activity