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Literature summary for 2.5.1.54 extracted from

  • Nimmo, G.A.; Coggins, J.R.
    The purification and molecular properties of the tryptophan-sensitive 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase from Neurospora crassa (1981), Biochem. J., 197, 427-436.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Phe Phe-sensitive isozyme Neurospora crassa
Trp Trp-sensitive isozyme Neurospora crassa
Tyr Tyr-sensitive isozyme Neurospora crassa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
52000
-
4 * 52000, tryptophan-sensitive isozyme, SDS-PAGE Neurospora crassa
200000
-
tryptophan-sensitive isozyme, sedimentation equilibrium centrifugation Neurospora crassa

Organism

Organism UniProt Comment Textmining
Neurospora crassa
-
-
-
Neurospora crassa
-
Trp-, Phe- and Tyr-sensitive isoenzymes
-
Neurospora crassa 74-OR23-1A
-
-
-

Purification (Commentary)

Purification (Comment) Organism
2350fold purification of the tryptophan sensitive isozyme, partial purification of the tyrosine- and phenylalanine-sensitive isozyme Neurospora crassa

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.27
-
partially purified Tyr-sensitive isozyme Neurospora crassa
4.5
-
partially purified Phe-sensitive isozyme Neurospora crassa
8.1
-
purified Trp-sensitive isozyme Neurospora crassa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
phosphoenolpyruvate + D-erythrose 4-phosphate + H2O
-
Neurospora crassa 2-dehydro-3-deoxy-D-arabino-heptonate 7-phosphate + phosphate
-
?
phosphoenolpyruvate + D-erythrose 4-phosphate + H2O
-
Neurospora crassa 74-OR23-1A 2-dehydro-3-deoxy-D-arabino-heptonate 7-phosphate + phosphate
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 52000, tryptophan-sensitive isozyme, SDS-PAGE Neurospora crassa