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6.3.2.25: tubulin-tyrosine ligase

This is an abbreviated version!
For detailed information about tubulin-tyrosine ligase, go to the full flat file.

Word Map on EC 6.3.2.25

Reaction

ATP
+
detyrosinated alpha-tubulin
+
L-tyrosine
=
alpha-tubulin
+
ADP
+
phosphate

Synonyms

Synthetase, tubulin-tyrosine, TTL, TTLase, tubulin tyrosine ligase, tubulin-tyrosine ligase, tubulin-tyrosine-ligase, Tubulin:tyrosine ligase, tubuline-tyrosine ligase, Tyrosyltubulin ligase

ECTree

     6 Ligases
         6.3 Forming carbon-nitrogen bonds
             6.3.2 Acid—amino-acid ligases (peptide synthases)
                6.3.2.25 tubulin-tyrosine ligase

Molecular Weight

Molecular Weight on EC 6.3.2.25 - tubulin-tyrosine ligase

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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
35000
-
gel filtration, MW of enzyme in crude extract, the MW of the purified enzyme is 150000. Addition of pure dimeric tubulin to the 35000 MW enzyme converts it back to the larger form which is apparently a stoichiometric 1:1 complex of tubulin and the 35000 MW enzyme
37000
-
gel filtration
40000
43000
43425
45000
-
loaded with binding partners, mass spectrometry
46000
-
1 * 46000, SDS-PAGE
additional information
-
two-domain structure: the two domains interact tightly under physiological conditions. The 30000 MW domain carries the binding sites for beta-tubulin and ATP. The 14000 MW domain can possibly form an additional part of the catalytic site