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ENZYME entry: EC 1.14.19.2

Accepted Name
Stearoyl-[acyl-carrier-protein] 9-desaturase.
Alternative Name(s)
Acyl-[acyl-carrier-protein] desaturase.
Stearyl acyl carrier protein desaturase.
Stearyl-ACP desaturase.
Reaction catalysed
Stearoyl-[acyl-carrier protein] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) <=> oleoyl-[acyl-carrier protein] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O
Comment(s)
  • The enzyme is found in the lumen of plastids, where de novo biosynthesis of fatty acids occurs, and acts on freshly synthesized saturated fatty acids that are still linked to acyl-carrier protein.
  • The enzyme determines the position of the double bond by its distance from the carboxylic acid end of the fatty acid.
  • It also acts on palmitoyl-[acyl-carrier-protein].
  • Formerly EC 1.14.99.6.
Cross-references
PROSITEPDOC00399
BRENDA1.14.19.2
EC2PDB1.14.19.2
ExplorEnz1.14.19.2
PRIAM enzyme-specific profiles1.14.19.2
KEGG Ligand Database for Enzyme Nomenclature1.14.19.2
IUBMB Enzyme Nomenclature1.14.19.2
IntEnz1.14.19.2
MEDLINEFind literature relating to 1.14.19.2
MetaCyc1.14.19.2
UniProtKB/Swiss-Prot
Q9LF04, STAD1_ARATH;  E3PZS1, STAD1_OPHSP;  B8A7A3, STAD1_ORYSI;  
Q8LJJ9, STAD1_ORYSJ;  Q9M881, STAD2_ARATH;  E3PZS3, STAD2_OPHAA;  
E3PZS2, STAD2_OPHSP;  A2WYF4, STAD2_ORYSI;  Q8S059, STAD2_ORYSJ;  
Q9LF05, STAD3_ARATH;  Q9M880, STAD4_ARATH;  Q9M879, STAD5_ARATH;  
A2XSL4, STAD5_ORYSI;  Q40731, STAD5_ORYSJ;  Q84VY3, STAD6_ARATH;  
O22832, STAD7_ARATH;  Q01771, STADS_BRANA;  P29108, STAD_BRANA;  
P22243, STAD_CARTI;  O24428, STAD_ELAGV;  Q42770, STAD_GOSHI;  
Q96456, STAD_HELAN;  P32062, STAD_LINUS;  Q43593, STAD_OLEEU;  
P22337, STAD_RICCO;  Q01753, STAD_SIMCH;  Q41319, STAD_SOLCO;  
P46253, STAD_SOLTU;  Q42807, STAD_SOYBN;  P28645, STAD_SPIOL;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.14.19.-
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