QQS_ARATH
ID QQS_ARATH Reviewed; 59 AA.
AC Q3E7K4;
DT 07-JAN-2015, integrated into UniProtKB/Swiss-Prot.
DT 08-NOV-2005, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=Protein QQS {ECO:0000303|PubMed:19154206};
DE AltName: Full=Qua-quine starch {ECO:0000303|PubMed:19154206};
GN Name=QQS {ECO:0000303|PubMed:19154206};
GN OrderedLocusNames=At3g30720 {ECO:0000312|Araport:AT3G30720};
GN ORFNames=F21A17 {ECO:0000312|EMBL:AP000732};
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 {ECO:0000312|EMBL:ACE80938.1};
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, INDUCTION, TISSUE SPECIFICITY,
RP AND SUBCELLULAR LOCATION.
RC STRAIN=cv. Columbia;
RX PubMed=19154206; DOI=10.1111/j.1365-313x.2009.03793.x;
RA Li L., Foster C.M., Gan Q., Nettleton D., James M.G., Myers A.M.,
RA Wurtele E.S.;
RT "Identification of the novel protein QQS as a component of the starch
RT metabolic network in Arabidopsis leaves.";
RL Plant J. 58:485-498(2009).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. Columbia;
RX PubMed=10907853; DOI=10.1093/dnares/7.3.217;
RA Kaneko T., Katoh T., Sato S., Nakamura Y., Asamizu E., Tabata S.;
RT "Structural analysis of Arabidopsis thaliana chromosome 3. II. Sequence
RT features of the 4,251,695 bp regions covered by 90 P1, TAC and BAC
RT clones.";
RL DNA Res. 7:217-221(2000).
RN [3]
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 [4]
RP INDUCTION, AND MISCELLANEOUS.
RC STRAIN=cv. Columbia;
RX PubMed=23593031; DOI=10.1371/journal.pgen.1003437;
RA Silveira A.B., Trontin C., Cortijo S., Barau J., Del Bem L.E., Loudet O.,
RA Colot V., Vincentz M.;
RT "Extensive natural epigenetic variation at a de novo originated gene.";
RL PLoS Genet. 9:E1003437-E1003437(2013).
RN [5]
RP FUNCTION, DISRUPTION PHENOTYPE, AND INDUCTION BY COLD.
RC STRAIN=cv. Columbia;
RX PubMed=25146936; DOI=10.1111/pbi.12238;
RA Li L., Wurtele E.S.;
RT "The QQS orphan gene of Arabidopsis modulates carbon and nitrogen
RT allocation in soybean.";
RL Plant Biotechnol. J. 13:177-187(2015).
RN [6]
RP INDUCTION BY LIGHT AND WRKY46.
RX PubMed=24773321; DOI=10.1111/tpj.12538;
RA Ding Z.J., Yan J.Y., Xu X.Y., Yu D.Q., Li G.X., Zhang S.Q., Zheng S.J.;
RT "Transcription factor WRKY46 regulates osmotic stress responses and
RT stomatal movement independently in Arabidopsis.";
RL Plant J. 79:13-27(2014).
CC -!- FUNCTION: Involved in regulating carbon and nitrogen allocation to
CC starch and protein (PubMed:25146936). {ECO:0000269|PubMed:25146936,
CC ECO:0000305|PubMed:19154206}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000269|PubMed:19154206}.
CC -!- TISSUE SPECIFICITY: Expressed in hypocotyls, leaves, vasculature,
CC hydathodes, trichomes, pedicels, sepals, filaments, mature pollen,
CC stigma papillae, styles, siliques, root and shoot tips, but not in
CC shoot meristem, petals or root epidermis.
CC {ECO:0000269|PubMed:19154206}.
CC -!- INDUCTION: Down-regulated by cold (PubMed:25146936). Up-regulated by
CC treatment with 5-aza-2'-deoxycytidine (PubMed:23593031). Up-regulated
CC during the dark phase of the diurnal cycle (PubMed:19154206). Regulated
CC by the transcription factor WRKY46 and up-regulated by light
CC (PubMed:24773321). {ECO:0000269|PubMed:19154206,
CC ECO:0000269|PubMed:23593031, ECO:0000269|PubMed:24773321,
CC ECO:0000269|PubMed:25146936}.
CC -!- DISRUPTION PHENOTYPE: No visible phenotype, but increased leaf starch
CC content and decreased protein content. {ECO:0000269|PubMed:25146936}.
CC -!- MISCELLANEOUS: The expression of QQS varies considerably among natural
CC accessions as well as within populations directly sampled from the
CC wild. This variation correlates negatively with the DNA methylation
CC level of repeated sequences located within the 5'end of the gene.
CC {ECO:0000269|PubMed:23593031}.
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DR EMBL; EU805808; ACE80938.1; -; Genomic_DNA.
DR EMBL; AP000732; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; CP002686; AEE77653.1; -; Genomic_DNA.
DR RefSeq; NP_189695.1; NM_113975.5.
DR AlphaFoldDB; Q3E7K4; -.
DR STRING; 3702.AT3G30720.1; -.
DR PaxDb; Q3E7K4; -.
DR PRIDE; Q3E7K4; -.
DR EnsemblPlants; AT3G30720.1; AT3G30720.1; AT3G30720.
DR GeneID; 822807; -.
DR Gramene; AT3G30720.1; AT3G30720.1; AT3G30720.
DR KEGG; ath:AT3G30720; -.
DR Araport; AT3G30720; -.
DR TAIR; locus:2079466; AT3G30720.
DR HOGENOM; CLU_2963998_0_0_1; -.
DR PRO; PR:Q3E7K4; -.
DR Proteomes; UP000006548; Chromosome 3.
DR ExpressionAtlas; Q3E7K4; baseline and differential.
DR Genevisible; Q3E7K4; AT.
DR GO; GO:0005829; C:cytosol; IDA:TAIR.
DR GO; GO:0005634; C:nucleus; IPI:TAIR.
DR GO; GO:0045087; P:innate immune response; IMP:TAIR.
DR GO; GO:2000905; P:negative regulation of starch metabolic process; IMP:TAIR.
DR GO; GO:0051247; P:positive regulation of protein metabolic process; IMP:TAIR.
DR GO; GO:0019252; P:starch biosynthetic process; IMP:TAIR.
PE 2: Evidence at transcript level;
KW Cytoplasm; Reference proteome; Starch biosynthesis.
FT CHAIN 1..59
FT /note="Protein QQS"
FT /id="PRO_0000431550"
SQ SEQUENCE 59 AA; 7052 MW; D1CCA4B1E8BABC35 CRC64;
MKTNREQEIY VERSFKPNNS TIQNLMDIER FILPHTSTSG VARLKMRVIS WVGLQFYNY
