EC - Ornithine lipid ester-linked acyl 2-hydroxylase

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IntEnz Enzyme Nomenclature


Accepted name:
ornithine lipid ester-linked acyl 2-hydroxylase
Other name:
olsC (gene name)
Systematic name:
ornithine lipid,2-oxoglutarate:oxygen oxidoreductase (ester-linked acyl 2-hydroxylase)



The enzyme, characterized from the bacterium Rhizobium tropici, catalyses the hydroxylation of C-2 of the fatty acyl group that is ester-linked to the 3-hydroxy position of the amide-linked fatty acid.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB


  1. Rojas-Jimenez, K., Sohlenkamp, C., Geiger, O., Martinez-Romero, E., Werner, D., Vinuesa, P.
    A ClC chloride channel homolog and ornithine-containing membrane lipids of Rhizobium tropici CIAT899 are involved in symbiotic efficiency and acid tolerance.
    Mol. Plant Microbe Interact. 18: 1175-1185 (2005). [PMID: 16353552]
  2. Vences-Guzman, M. A., Guan, Z., Ormeno-Orrillo, E., Gonzalez-Silva, N., Lopez-Lara, I. M., Martinez-Romero, E., Geiger, O., Sohlenkamp, C.
    Hydroxylated ornithine lipids increase stress tolerance in Rhizobium tropici CIAT899.
    Mol. Microbiol. 79: 1496-1514 (2011). [PMID: 21205018]

[EC created 2018]