ID H8ZQA5_OPHSP Unreviewed; 376 AA.
AC H8ZQA5;
DT 16-MAY-2012, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2012, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=acyl-[acyl-carrier-protein] 4-desaturase {ECO:0000256|ARBA:ARBA00012015};
DE EC=1.14.19.11 {ECO:0000256|ARBA:ARBA00012015};
DE Flags: Fragment;
GN Name=sad2 {ECO:0000313|EMBL:AFD64601.1};
OS Ophrys sphegodes (Early spider orchid) (Arachnites aranifera).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Asparagales; Orchidaceae;
OC Orchidoideae; Orchideae; Orchidinae; Ophrys.
OX NCBI_TaxID=145953 {ECO:0000313|EMBL:AFD64601.1};
RN [1] {ECO:0000313|EMBL:AFD64601.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=22916031; DOI=10.1371/journal.pgen.1002889;
RA Xu S., Schluter P.M., Grossniklaus U., Schiestl F.P.;
RT "The genetic basis of pollinator adaptation in a sexually deceptive
RT orchid.";
RL PLoS Genet. 8:E1002889-E1002889(2012).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 H(+) + hexadecanoyl-[ACP] + O2 + 2 reduced [2Fe-2S]-
CC [ferredoxin] = (4Z)-hexadecenoyl-[ACP] + 2 H2O + 2 oxidized [2Fe-2S]-
CC [ferredoxin]; Xref=Rhea:RHEA:38043, Rhea:RHEA-COMP:9652, Rhea:RHEA-
CC COMP:10000, Rhea:RHEA-COMP:10001, Rhea:RHEA-COMP:11488,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:78483,
CC ChEBI:CHEBI:85919; EC=1.14.19.11;
CC Evidence={ECO:0000256|ARBA:ARBA00001006};
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC Evidence={ECO:0000256|PIRSR:PIRSR000346-1};
CC Note=Binds 2 iron ions per subunit. {ECO:0000256|PIRSR:PIRSR000346-1};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|ARBA:ARBA00001954};
CC -!- PATHWAY: Lipid metabolism; fatty acid metabolism.
CC {ECO:0000256|ARBA:ARBA00004872}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast stroma
CC {ECO:0000256|ARBA:ARBA00004470}.
CC -!- SIMILARITY: Belongs to the fatty acid desaturase type 2 family.
CC {ECO:0000256|ARBA:ARBA00008749}.
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DR EMBL; JN413023; AFD64601.1; -; mRNA.
DR AlphaFoldDB; H8ZQA5; -.
DR UniPathway; UPA00199; -.
DR GO; GO:0009570; C:chloroplast stroma; IEA:UniProtKB-SubCell.
DR GO; GO:0045300; F:acyl-[acyl-carrier-protein] desaturase activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-KW.
DR CDD; cd01050; Acyl_ACP_Desat; 1.
DR Gene3D; 1.10.620.20; Ribonucleotide Reductase, subunit A; 1.
DR InterPro; IPR005067; Fatty_acid_desaturase-2.
DR InterPro; IPR009078; Ferritin-like_SF.
DR InterPro; IPR012348; RNR-like.
DR PANTHER; PTHR31155; ACYL- ACYL-CARRIER-PROTEIN DESATURASE-RELATED; 1.
DR PANTHER; PTHR31155:SF9; STEAROYL-[ACYL-CARRIER-PROTEIN] 9-DESATURASE 7, CHLOROPLASTIC; 1.
DR Pfam; PF03405; FA_desaturase_2; 1.
DR PIRSF; PIRSF000346; Dlt9_acylACP_des; 1.
DR SUPFAM; SSF47240; Ferritin-like; 1.
PE 2: Evidence at transcript level;
KW Fatty acid biosynthesis {ECO:0000256|ARBA:ARBA00023160};
KW Fatty acid metabolism {ECO:0000256|ARBA:ARBA00022832};
KW Iron {ECO:0000256|PIRSR:PIRSR000346-1};
KW Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516};
KW Lipid metabolism {ECO:0000256|ARBA:ARBA00023098};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR000346-1};
KW Transit peptide {ECO:0000256|ARBA:ARBA00022946}.
FT BINDING 114
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 149
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 149
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 152
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 202
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 235
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 235
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT BINDING 238
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000346-1"
FT NON_TER 376
FT /evidence="ECO:0000313|EMBL:AFD64601.1"
SQ SEQUENCE 376 AA; 42408 MW; 040D05D3E5F04487 CRC64;
MELHLALRAS PLPAADPGRR PPPPRGNFAT NCTTAINSTH ISQEKFRSLD SWVEHNMLTF
LKPVEKCWQP QDFLPDPSHL SAEELGDAVR EIHERAAEIP DEVWVCMVGN MVTEEALPTY
QSLISSILGG TVAGSTPWNR WIRGWSAEEN RHGDLLNKYL YLTGRLDMRQ VEKTIQYLIG
SGMDVGVGNS ILCGFIYTCF QEKATFISHG NTARLAKHHG DTTLAKICGL VAADEKRHAV
AYTNLMKKLF EVAPNESMLA FAHIMRAHVA MPASRMFDGR DPRLFTHFSA VTQKIGVYTV
RDYGEVLDFF LKEWEISAVV DDLSPEGRQA QEYLCGLPEV MGKMAERADD RRKKLVNVGE
PRYIPFSWIF NKQVRV
//
