STAD4_ARATH
ID STAD4_ARATH Reviewed; 403 AA.
AC Q9M880;
DT 30-NOV-2010, integrated into UniProtKB/Swiss-Prot.
DT 30-NOV-2010, sequence version 2.
DT 03-AUG-2022, entry version 125.
DE RecName: Full=Stearoyl-[acyl-carrier-protein] 9-desaturase 4, chloroplastic;
DE Short=Stearoyl-ACP desaturase 4;
DE EC=1.14.19.2 {ECO:0000269|PubMed:17072561};
DE AltName: Full=Acyl-[acyl-carrier-protein] desaturase 4;
DE Flags: Precursor;
GN Name=S-ACP-DES4; Synonyms=AAD4, SAD4; OrderedLocusNames=At3g02620;
GN ORFNames=F16B3.25;
OS Arabidopsis thaliana (Mouse-ear cress).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis.
OX NCBI_TaxID=3702;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. Columbia;
RX PubMed=11130713; DOI=10.1038/35048706;
RA Salanoubat M., Lemcke K., Rieger M., Ansorge W., Unseld M., Fartmann B.,
RA Valle G., Bloecker H., Perez-Alonso M., Obermaier B., Delseny M.,
RA Boutry M., Grivell L.A., Mache R., Puigdomenech P., De Simone V.,
RA Choisne N., Artiguenave F., Robert C., Brottier P., Wincker P.,
RA Cattolico L., Weissenbach J., Saurin W., Quetier F., Schaefer M.,
RA Mueller-Auer S., Gabel C., Fuchs M., Benes V., Wurmbach E., Drzonek H.,
RA Erfle H., Jordan N., Bangert S., Wiedelmann R., Kranz H., Voss H.,
RA Holland R., Brandt P., Nyakatura G., Vezzi A., D'Angelo M., Pallavicini A.,
RA Toppo S., Simionati B., Conrad A., Hornischer K., Kauer G., Loehnert T.-H.,
RA Nordsiek G., Reichelt J., Scharfe M., Schoen O., Bargues M., Terol J.,
RA Climent J., Navarro P., Collado C., Perez-Perez A., Ottenwaelder B.,
RA Duchemin D., Cooke R., Laudie M., Berger-Llauro C., Purnelle B., Masuy D.,
RA de Haan M., Maarse A.C., Alcaraz J.-P., Cottet A., Casacuberta E.,
RA Monfort A., Argiriou A., Flores M., Liguori R., Vitale D., Mannhaupt G.,
RA Haase D., Schoof H., Rudd S., Zaccaria P., Mewes H.-W., Mayer K.F.X.,
RA Kaul S., Town C.D., Koo H.L., Tallon L.J., Jenkins J., Rooney T., Rizzo M.,
RA Walts A., Utterback T., Fujii C.Y., Shea T.P., Creasy T.H., Haas B.,
RA Maiti R., Wu D., Peterson J., Van Aken S., Pai G., Militscher J.,
RA Sellers P., Gill J.E., Feldblyum T.V., Preuss D., Lin X., Nierman W.C.,
RA Salzberg S.L., White O., Venter J.C., Fraser C.M., Kaneko T., Nakamura Y.,
RA Sato S., Kato T., Asamizu E., Sasamoto S., Kimura T., Idesawa K.,
RA Kawashima K., Kishida Y., Kiyokawa C., Kohara M., Matsumoto M., Matsuno A.,
RA Muraki A., Nakayama S., Nakazaki N., Shinpo S., Takeuchi C., Wada T.,
RA Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT "Sequence and analysis of chromosome 3 of the plant Arabidopsis thaliana.";
RL Nature 408:820-822(2000).
RN [2]
RP GENOME REANNOTATION.
RC STRAIN=cv. Columbia;
RX PubMed=27862469; DOI=10.1111/tpj.13415;
RA Cheng C.Y., Krishnakumar V., Chan A.P., Thibaud-Nissen F., Schobel S.,
RA Town C.D.;
RT "Araport11: a complete reannotation of the Arabidopsis thaliana reference
RT genome.";
RL Plant J. 89:789-804(2017).
RN [3]
RP GENE FAMILY, FUNCTION, CATALYTIC ACTIVITY, DISRUPTION PHENOTYPE, AND TISSUE
RP SPECIFICITY.
RX PubMed=17072561; DOI=10.1007/s11103-006-9086-y;
RA Kachroo A., Shanklin J., Whittle E., Lapchyk L., Hildebrand D., Kachroo P.;
RT "The Arabidopsis stearoyl-acyl carrier protein-desaturase family and the
RT contribution of leaf isoforms to oleic acid synthesis.";
RL Plant Mol. Biol. 63:257-271(2007).
CC -!- FUNCTION: Converts stearoyl-ACP to oleoyl-ACP by introduction of a cis
CC double bond between carbons 9 and 10 of the acyl chain.
CC {ECO:0000269|PubMed:17072561}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 H(+) + O2 + octadecanoyl-[ACP] + 2 reduced [2Fe-2S]-
CC [ferredoxin] = (9Z)-octadecenoyl-[ACP] + 2 H2O + 2 oxidized [2Fe-2S]-
CC [ferredoxin]; Xref=Rhea:RHEA:11776, Rhea:RHEA-COMP:9656, Rhea:RHEA-
CC COMP:9924, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:78495,
CC ChEBI:CHEBI:78783; EC=1.14.19.2;
CC Evidence={ECO:0000269|PubMed:17072561};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000250|UniProtKB:P22337};
CC Note=Binds 2 Fe(2+) ions per subunit. {ECO:0000250|UniProtKB:P22337};
CC -!- PATHWAY: Lipid metabolism; fatty acid metabolism.
CC -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:P22337}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000305}.
CC -!- TISSUE SPECIFICITY: Preferentially expressed in roots.
CC {ECO:0000269|PubMed:17072561}.
CC -!- DISRUPTION PHENOTYPE: No visible phenotype.
CC {ECO:0000269|PubMed:17072561}.
CC -!- SIMILARITY: Belongs to the fatty acid desaturase type 2 family.
CC {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAF32469.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
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DR EMBL; AC021640; AAF32469.1; ALT_SEQ; Genomic_DNA.
DR EMBL; CP002686; AEE73840.1; -; Genomic_DNA.
DR RefSeq; NP_186911.2; NM_111130.3.
DR AlphaFoldDB; Q9M880; -.
DR SMR; Q9M880; -.
DR STRING; 3702.AT3G02620.1; -.
DR PaxDb; Q9M880; -.
DR EnsemblPlants; AT3G02620.1; AT3G02620.1; AT3G02620.
DR GeneID; 820737; -.
DR Gramene; AT3G02620.1; AT3G02620.1; AT3G02620.
DR KEGG; ath:AT3G02620; -.
DR Araport; AT3G02620; -.
DR TAIR; locus:2076959; AT3G02620.
DR eggNOG; ENOG502QRJK; Eukaryota.
DR HOGENOM; CLU_034505_1_0_1; -.
DR InParanoid; Q9M880; -.
DR PhylomeDB; Q9M880; -.
DR BRENDA; 1.14.19.2; 399.
DR UniPathway; UPA00199; -.
DR PRO; PR:Q9M880; -.
DR Proteomes; UP000006548; Chromosome 3.
DR ExpressionAtlas; Q9M880; baseline and differential.
DR Genevisible; Q9M880; AT.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0045300; F:acyl-[acyl-carrier-protein] desaturase activity; IBA:GO_Central.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0102786; F:stearoyl-[acp] desaturase activity; IEA:UniProtKB-EC.
DR GO; GO:0006633; P:fatty acid biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0006631; P:fatty acid metabolic process; IBA:GO_Central.
DR CDD; cd01050; Acyl_ACP_Desat; 1.
DR Gene3D; 1.10.620.20; -; 1.
DR InterPro; IPR005067; Fatty_acid_desaturase-2.
DR InterPro; IPR009078; Ferritin-like_SF.
DR InterPro; IPR012348; RNR-like.
DR PANTHER; PTHR31155; PTHR31155; 1.
DR Pfam; PF03405; FA_desaturase_2; 1.
DR PIRSF; PIRSF000346; Dlt9_acylACP_des; 1.
DR SUPFAM; SSF47240; SSF47240; 1.
PE 1: Evidence at protein level;
KW Chloroplast; Fatty acid biosynthesis; Fatty acid metabolism; Iron;
KW Lipid biosynthesis; Lipid metabolism; Metal-binding; Oxidoreductase;
KW Plastid; Reference proteome; Transit peptide.
FT TRANSIT 1..44
FT /note="Chloroplast"
FT /evidence="ECO:0000255"
FT CHAIN 45..403
FT /note="Stearoyl-[acyl-carrier-protein] 9-desaturase 4,
FT chloroplastic"
FT /id="PRO_0000401422"
FT BINDING 140
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 178
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 178
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 181
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 231
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 264
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 264
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P22337"
FT BINDING 267
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P22337"
SQ SEQUENCE 403 AA; 46156 MW; 0F86E02633E12C07 CRC64;
MALLLNSTMT VAMKQNPATA VSFMQTTCLG SSFSPPRHLQ VSCVATNPSK TFRPIKEVSN
QVTHTITQEK LEIFKSMENW AQENLLSYLK PVETSWQPQD FLPETKDEDR FYEQVKELRD
RTKEIPDDYF VVLVGDMITE EALPTYQTVM NTLDGAKDET GVSLTPWAVW LRAWTAEENR
HGDLLNKYLY LSGRVDTRHV EKTIQYLIGS GMDTKYENNP YNGYIYTSFQ ERATFISHAN
TAKLATTYGD TTLAKICGTI AADEKRHEMA YTRIVEKLFE IDPDGTVQAL ASMMRKRITM
PAQLMHDGRD DNLFDHYAAV AQRIGVYTAT DYAGILEFLL RRWEVEKLGM GLSGEGRRAQ
DYLCTLPQRI RRLEERADDR VKRASKSKPS VSFSWIYGRE VEL
