IUBMB Enzyme Nomenclature


Accepted name: sn-2 palmitoyl-lipid 9-desaturase

Reaction: a 1-acyl-2-palmitoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-acyl-2-palmitoleoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O

Other name(s): DesC2

Systematic name: 1-acyl-2-palmitoyl-[glycerolipid],ferredoxin:oxygen oxidoreductase (9,10 cis-dehydrogenating)

Comments: The enzyme, characterized from the cyanobacterium Nostoc sp. 36, introduces a cis double bond at carbon 9 of palmitoyl groups (16:0) attached to the sn-2 position of glycerolipids.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Chintalapati, S., Prakash, J.S., Gupta, P., Ohtani, S., Suzuki, I., Sakamoto, T., Murata, N. and Shivaji, S. A novel Δ9 acyl-lipid desaturase, DesC2, from cyanobacteria acts on fatty acids esterified to the sn-2 position of glycerolipids. Biochem. J. 398 (2006) 207-214. [PMID: 16689682]

[EC created 2015]

Return to EC 1.14.19 home page
Return to EC 1.14 home page
Return to EC 1 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page