ID APX6_ARATH Reviewed; 329 AA.
AC Q8GY91; O49360;
DT 28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 24-JAN-2024, entry version 118.
DE RecName: Full=Putative L-ascorbate peroxidase 6;
DE Short=AtAPx08;
DE EC=1.11.1.11;
GN Name=APX6; OrderedLocusNames=At4g32320; ORFNames=F10M6.50, F8B4.20;
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=10617198; DOI=10.1038/47134;
RA Mayer K.F.X., Schueller C., Wambutt R., Murphy G., Volckaert G., Pohl T.,
RA Duesterhoeft A., Stiekema W., Entian K.-D., Terryn N., Harris B.,
RA Ansorge W., Brandt P., Grivell L.A., Rieger M., Weichselgartner M.,
RA de Simone V., Obermaier B., Mache R., Mueller M., Kreis M., Delseny M.,
RA Puigdomenech P., Watson M., Schmidtheini T., Reichert B., Portetelle D.,
RA Perez-Alonso M., Boutry M., Bancroft I., Vos P., Hoheisel J.,
RA Zimmermann W., Wedler H., Ridley P., Langham S.-A., McCullagh B.,
RA Bilham L., Robben J., van der Schueren J., Grymonprez B., Chuang Y.-J.,
RA Vandenbussche F., Braeken M., Weltjens I., Voet M., Bastiaens I., Aert R.,
RA Defoor E., Weitzenegger T., Bothe G., Ramsperger U., Hilbert H., Braun M.,
RA Holzer E., Brandt A., Peters S., van Staveren M., Dirkse W., Mooijman P.,
RA Klein Lankhorst R., Rose M., Hauf J., Koetter P., Berneiser S., Hempel S.,
RA Feldpausch M., Lamberth S., Van den Daele H., De Keyser A., Buysshaert C.,
RA Gielen J., Villarroel R., De Clercq R., van Montagu M., Rogers J.,
RA Cronin A., Quail M.A., Bray-Allen S., Clark L., Doggett J., Hall S.,
RA Kay M., Lennard N., McLay K., Mayes R., Pettett A., Rajandream M.A.,
RA Lyne M., Benes V., Rechmann S., Borkova D., Bloecker H., Scharfe M.,
RA Grimm M., Loehnert T.-H., Dose S., de Haan M., Maarse A.C., Schaefer M.,
RA Mueller-Auer S., Gabel C., Fuchs M., Fartmann B., Granderath K., Dauner D.,
RA Herzl A., Neumann S., Argiriou A., Vitale D., Liguori R., Piravandi E.,
RA Massenet O., Quigley F., Clabauld G., Muendlein A., Felber R., Schnabl S.,
RA Hiller R., Schmidt W., Lecharny A., Aubourg S., Chefdor F., Cooke R.,
RA Berger C., Monfort A., Casacuberta E., Gibbons T., Weber N., Vandenbol M.,
RA Bargues M., Terol J., Torres A., Perez-Perez A., Purnelle B., Bent E.,
RA Johnson S., Tacon D., Jesse T., Heijnen L., Schwarz S., Scholler P.,
RA Heber S., Francs P., Bielke C., Frishman D., Haase D., Lemcke K.,
RA Mewes H.-W., Stocker S., Zaccaria P., Bevan M., Wilson R.K.,
RA de la Bastide M., Habermann K., Parnell L., Dedhia N., Gnoj L., Schutz K.,
RA Huang E., Spiegel L., Sekhon M., Murray J., Sheet P., Cordes M.,
RA Abu-Threideh J., Stoneking T., Kalicki J., Graves T., Harmon G.,
RA Edwards J., Latreille P., Courtney L., Cloud J., Abbott A., Scott K.,
RA Johnson D., Minx P., Bentley D., Fulton B., Miller N., Greco T., Kemp K.,
RA Kramer J., Fulton L., Mardis E., Dante M., Pepin K., Hillier L.W.,
RA Nelson J., Spieth J., Ryan E., Andrews S., Geisel C., Layman D., Du H.,
RA Ali J., Berghoff A., Jones K., Drone K., Cotton M., Joshu C., Antonoiu B.,
RA Zidanic M., Strong C., Sun H., Lamar B., Yordan C., Ma P., Zhong J.,
RA Preston R., Vil D., Shekher M., Matero A., Shah R., Swaby I.K.,
RA O'Shaughnessy A., Rodriguez M., Hoffman J., Till S., Granat S., Shohdy N.,
RA Hasegawa A., Hameed A., Lodhi M., Johnson A., Chen E., Marra M.A.,
RA Martienssen R., McCombie W.R.;
RT "Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.";
RL Nature 402:769-777(1999).
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 NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC STRAIN=cv. Columbia;
RX PubMed=11910074; DOI=10.1126/science.1071006;
RA Seki M., Narusaka M., Kamiya A., Ishida J., Satou M., Sakurai T.,
RA Nakajima M., Enju A., Akiyama K., Oono Y., Muramatsu M., Hayashizaki Y.,
RA Kawai J., Carninci P., Itoh M., Ishii Y., Arakawa T., Shibata K.,
RA Shinagawa A., Shinozaki K.;
RT "Functional annotation of a full-length Arabidopsis cDNA collection.";
RL Science 296:141-145(2002).
RN [4]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC STRAIN=cv. Columbia;
RX PubMed=14593172; DOI=10.1126/science.1088305;
RA Yamada K., Lim J., Dale J.M., Chen H., Shinn P., Palm C.J., Southwick A.M.,
RA Wu H.C., Kim C.J., Nguyen M., Pham P.K., Cheuk R.F., Karlin-Newmann G.,
RA Liu S.X., Lam B., Sakano H., Wu T., Yu G., Miranda M., Quach H.L.,
RA Tripp M., Chang C.H., Lee J.M., Toriumi M.J., Chan M.M., Tang C.C.,
RA Onodera C.S., Deng J.M., Akiyama K., Ansari Y., Arakawa T., Banh J.,
RA Banno F., Bowser L., Brooks S.Y., Carninci P., Chao Q., Choy N., Enju A.,
RA Goldsmith A.D., Gurjal M., Hansen N.F., Hayashizaki Y., Johnson-Hopson C.,
RA Hsuan V.W., Iida K., Karnes M., Khan S., Koesema E., Ishida J., Jiang P.X.,
RA Jones T., Kawai J., Kamiya A., Meyers C., Nakajima M., Narusaka M.,
RA Seki M., Sakurai T., Satou M., Tamse R., Vaysberg M., Wallender E.K.,
RA Wong C., Yamamura Y., Yuan S., Shinozaki K., Davis R.W., Theologis A.,
RA Ecker J.R.;
RT "Empirical analysis of transcriptional activity in the Arabidopsis
RT genome.";
RL Science 302:842-846(2003).
CC -!- FUNCTION: Plays a key role in hydrogen peroxide removal. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O2 + L-ascorbate = 2 H2O + L-dehydroascorbate;
CC Xref=Rhea:RHEA:22996, ChEBI:CHEBI:15377, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:38290, ChEBI:CHEBI:58539; EC=1.11.1.11;
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.;
CC -!- SIMILARITY: Belongs to the peroxidase family. Ascorbate peroxidase
CC subfamily. {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAA16959.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC Sequence=CAA22559.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC Sequence=CAB79949.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AL021811; CAA16959.1; ALT_SEQ; Genomic_DNA.
DR EMBL; AL034567; CAA22559.1; ALT_SEQ; Genomic_DNA.
DR EMBL; AL161581; CAB79949.1; ALT_SEQ; Genomic_DNA.
DR EMBL; CP002687; AEE86039.1; -; Genomic_DNA.
DR EMBL; AK117784; BAC42431.1; -; mRNA.
DR EMBL; BT008349; AAP37708.1; -; mRNA.
DR PIR; T05342; T05342.
DR RefSeq; NP_194958.2; NM_119384.4.
DR AlphaFoldDB; Q8GY91; -.
DR SMR; Q8GY91; -.
DR BioGRID; 14652; 1.
DR STRING; 3702.Q8GY91; -.
DR PeroxiBase; 3952; AtAPx-R.
DR PaxDb; 3702-AT4G32320-1; -.
DR ProteomicsDB; 246493; -.
DR EnsemblPlants; AT4G32320.1; AT4G32320.1; AT4G32320.
DR GeneID; 829366; -.
DR Gramene; AT4G32320.1; AT4G32320.1; AT4G32320.
DR KEGG; ath:AT4G32320; -.
DR Araport; AT4G32320; -.
DR TAIR; AT4G32320; APX6.
DR eggNOG; ENOG502QU9K; Eukaryota.
DR HOGENOM; CLU_036959_4_0_1; -.
DR InParanoid; Q8GY91; -.
DR OMA; ECFKRKG; -.
DR OrthoDB; 168803at2759; -.
DR PhylomeDB; Q8GY91; -.
DR BioCyc; ARA:AT4G32320-MONOMER; -.
DR PRO; PR:Q8GY91; -.
DR Proteomes; UP000006548; Chromosome 4.
DR ExpressionAtlas; Q8GY91; baseline and differential.
DR Genevisible; Q8GY91; AT.
DR GO; GO:0005829; C:cytosol; TAS:TAIR.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0016688; F:L-ascorbate peroxidase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004601; F:peroxidase activity; IDA:TAIR.
DR GO; GO:0034599; P:cellular response to oxidative stress; IEA:InterPro.
DR GO; GO:0042744; P:hydrogen peroxide catabolic process; IEA:UniProtKB-KW.
DR GO; GO:0009845; P:seed germination; IMP:TAIR.
DR GO; GO:0010431; P:seed maturation; IMP:TAIR.
DR CDD; cd00314; plant_peroxidase_like; 1.
DR Gene3D; 1.10.520.10; -; 1.
DR Gene3D; 1.10.420.10; Peroxidase, domain 2; 1.
DR InterPro; IPR044831; Ccp1-like.
DR InterPro; IPR002016; Haem_peroxidase.
DR InterPro; IPR010255; Haem_peroxidase_sf.
DR InterPro; IPR002207; Peroxidase_I.
DR InterPro; IPR019794; Peroxidases_AS.
DR InterPro; IPR019793; Peroxidases_heam-ligand_BS.
DR PANTHER; PTHR31356:SF8; L-ASCORBATE PEROXIDASE 6-RELATED; 1.
DR PANTHER; PTHR31356; THYLAKOID LUMENAL 29 KDA PROTEIN, CHLOROPLASTIC-RELATED; 1.
DR Pfam; PF00141; peroxidase; 1.
DR PRINTS; PR00459; ASPEROXIDASE.
DR PRINTS; PR00458; PEROXIDASE.
DR SUPFAM; SSF48113; Heme-dependent peroxidases; 1.
DR PROSITE; PS00435; PEROXIDASE_1; 1.
DR PROSITE; PS00436; PEROXIDASE_2; 1.
DR PROSITE; PS50873; PEROXIDASE_4; 1.
PE 2: Evidence at transcript level;
KW Heme; Hydrogen peroxide; Iron; Metal-binding; Oxidoreductase; Peroxidase;
KW Reference proteome.
FT CHAIN 1..329
FT /note="Putative L-ascorbate peroxidase 6"
FT /id="PRO_0000261325"
FT ACT_SITE 123
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297,
FT ECO:0000255|PROSITE-ProRule:PRU10012"
FT BINDING 244
FT /ligand="heme b"
FT /ligand_id="ChEBI:CHEBI:60344"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
FT SITE 119
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00297"
SQ SEQUENCE 329 AA; 36240 MW; BC50726AB7B689DD CRC64;
MTTTTASLVK TFLFRCDSFS SFKFKCKFES PAKTRLLSPA TEKHVVRSSR AWRIRCLSDD
PGSSHVFVAS RRKMVVLLST VQLLSHMLPQ NGNAAEIYPV MQNEIRKVVT KGKAAGVLRL
VFHDAGTFEL DDHSGGINGS IAYELERPEN IGLKKSLKVL AKAKVKVDEI QPVSWADMIS
VAGSEAVSIC GGPTIPVVLG RLDSAQPDPE GKLPPETLSA SGLKECFKRK GFSTQELVAL
SGAHTIGSKG FGDPTVFDNA YYKILLEKPW TSTSKMTSMV GLPSDHALVQ DDECLRWVKR
YAEDQDKFFE DFTNAYIKLV NSGAKWNML
//
