NCBI Accession #
NP_181899.1
NCBI GenBank Nucleotide #
NM_129933.4
NCBI Official Full Name
Plant stearoyl-acyl-carrier-protein desaturase family protein
NCBI Official Symbol
SSI2
NCBI Official Synonym Symbols
AtSSI2; F18O19.18; FAB2; FATTY ACID BIOSYNTHESIS 2; LDW1; lesion dwarf mimic 1; suppressor of SA insensitive 2
NCBI Protein Information
Plant stearoyl-acyl-carrier-protein desaturase family protein
NCBI Summary
Encodes a stearoyl-ACP desaturase, involved in fatty acid desaturation. The ssi2 mutants have increased 18:0 and reduced 18:1 fatty acids. Exogenous application of glycerol to wild type plants mimics the ssi2 mutant phenotype. The altered 18:1 fatty acid content in the ssi2 mutants has an impact on SA- and JA-mediated defense signaling. ssi2 mutants resulted in hyper-resistance to green peach aphid and antibiosis activity in petiole exudates.
UniProt Synonym Gene Names
SSI2; Stearoyl-ACP desaturase 7; AtSSI2
UniProt Protein Name
Stearoyl-[acyl-carrier-protein] 9-desaturase 7, chloroplastic
UniProt Synonym Protein Names
Acyl-[acyl-carrier-protein] desaturase 7; Protein FATTY ACID BIOSYNTHESIS 2; Protein SUPPRESSOR OF SA INSENSITIVITY 2; AtSSI2
UniProt Primary Accession #
O22832
UniProt Secondary Accession #
Q0WKW6; Q42591; Q94AE9
UniProt Related Accession #
O22832
UniProt Comments
Converts stearoyl-ACP to oleoyl-ACP by introduction of a cis double bond between carbons 9 and 10 of the acyl chain. Required for the activation of certain jasmonic acid (JA)-mediated responses and the repression of the salicylic acid (SA) signaling pathway.