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Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
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for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
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for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
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Escherichia coli K-12 substr. MG1655 Reaction: 2.9.1.1

Superclasses: Reactions Classified By Conversion Type Simple Reactions Chemical Reactions
Reactions Classified By Substrate Macromolecule Reactions Polynucleotide-Reactions RNA-Reactions tRNA-Reactions

EC Number: 2.9.1.1

Enzymes and Genes:
selenocysteine synthase Inferred from experiment : selA

In Pathway: selenocysteine biosynthesis I (bacteria)

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.

Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.

Mass balance status: The left side is missing: H: 1

Enzyme Commission Primary Name: L-seryl-tRNASec selenium transferase

Enzyme Commission Synonyms: L-selenocysteinyl-tRNASel synthase, L-selenocysteinyl-tRNASec synthase selenocysteine synthase, cysteinyl-tRNASec-selenium transferase

Enzyme Commission Summary:
A pyridoxal 5′-phosphate enzyme identified in Escherichia coli. Recognises specifically tRNASec-species. Binding of tRNASec also occurs in the absence of the seryl group. 2-Aminoacryloyl-tRNA, bound to the enzyme as an imine with the pyridoxal phosphate, is an intermediate in the reaction. Since the selenium atom replaces oxygen in serine, the product may also be referred to as L-selenoseryl-tRNASec. The symbol Sel has also been used for selenocysteine but Sec is preferred.

Citations: [Forchhammer91b]

Gene-Reaction Schematic: ?

Relationship Links: BRENDA:EC:2.9.1.1 , ENZYME:EC:2.9.1.1 , IUBMB-ExplorEnz:EC:2.9.1.1


References

Forchhammer91b: Forchhammer K, Bock A (1991). "Selenocysteine synthase from Escherichia coli. Analysis of the reaction sequence." J Biol Chem 266(10);6324-8. PMID: 2007585


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by SRI International Pathway Tools version 18.5 on Mon Dec 22, 2014, BIOCYC13A.