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Literature summary for 2.1.1.10 extracted from

  • Li, K.; Li, G.; Bradbury, L.M.; Hanson, A.D.; Bruner, S.D.
    Crystal structure of the homocysteine methyltransferase MmuM from Escherichia coli (2015), Biochem. J., 473, 277-284.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
-
Escherichia coli

Crystallization (Commentary)

Crystallization (Comment) Organism
in oxidized, apo, and metallated form, to 1.8-1.9 A resolution Escherichia coli

Protein Variants

Protein Variants Comment Organism
Y71F/T169Y mutant designed to mimic the betaine-homocysteine methyltransferase substrate binding pocket, complete loss of activity Escherichia coli

Metals/Ions

Metals/Ions Comment Organism Structure
additional information contrary to human enzyme, K+ is not required Escherichia coli
Zn2+ required. The metallated crystal form has residues C229, C295 and C296 coordinated to a Zn2+ center. the coordination of homocysteine to metal with a distance of 2.8 A contributes to near-ideal Zn2+-centered tetrahedron geometry Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
34490
-
1 * 34490, calculated, 1 * 35000, SDS-PAGE Escherichia coli
35000
-
gel filtration Escherichia coli

Organism

Organism UniProt Comment Textmining
Escherichia coli Q47690
-
-

Subunits

Subunits Comment Organism
monomer 1 * 34490, calculated, 1 * 35000, SDS-PAGE Escherichia coli