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Information on EC 2.5.1.58 - protein farnesyltransferase

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IUBMB Comments
This enzyme, along with protein geranylgeranyltransferase types I (EC 2.5.1.59) and II (EC 2.5.1.60), constitutes the protein prenyltransferase family of enzymes. Catalyses the formation of a thioether linkage between the C-1 of an isoprenyl group and a cysteine residue fourth from the C-terminus of the protein. These protein acceptors have the C-terminal sequence CA1A2X, where the terminal residue, X, is preferably serine, methionine, alanine or glutamine; leucine makes the protein a substrate for EC 2.5.1.59. The enzymes are relaxed in specificity for A1, but cannot act if A2 is aromatic. Substrates of the prenyltransferases include Ras, Rho, Rab, other Ras-related small GTP-binding proteins, gamma-subunits of heterotrimeric G-proteins, nuclear lamins, centromeric proteins and many proteins involved in visual signal transduction. A zinc metalloenzyme that requires Mg2+ for activity.
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The expected taxonomic range for this enzyme is: Eukaryota, Archaea, Bacteria
Synonyms
protein farnesyltransferase, fptase, farnesyl protein transferase, pftase, prenyl transferase, protein farnesyl transferase, ras farnesyltransferase, protein prenyltransferase, caax farnesyltransferase, hftase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
farnesyl diphosphate + protein-cysteine = S-farnesyl protein + diphosphate
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