ID XDH2_ARATH Reviewed; 1353 AA. AC F4JLI5; Q6R2R5; Q9SW45; DT 16-MAY-2012, integrated into UniProtKB/Swiss-Prot. DT 28-JUN-2011, sequence version 1. DT 27-MAR-2024, entry version 83. DE RecName: Full=Xanthine dehydrogenase 2; DE Short=AtXDH2; DE EC=1.17.1.4 {ECO:0000250|UniProtKB:Q8GUQ8}; GN Name=XDH2; OrderedLocusNames=At4g34900; ORFNames=T11I11.140; 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 [MRNA]. RX PubMed=14726515; DOI=10.1074/jbc.m312929200; RA Hesberg C., Haensch R., Mendel R.R., Bittner F.; RT "Tandem orientation of duplicated xanthine dehydrogenase genes from RT Arabidopsis thaliana: differential gene expression and enzyme activities."; RL J. Biol. Chem. 279:13547-13554(2004). RN [2] 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 [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 FUNCTION. RX PubMed=17872919; DOI=10.1093/pcp/pcm119; RA Nakagawa A., Sakamoto S., Takahashi M., Morikawa H., Sakamoto A.; RT "The RNAi-mediated silencing of xanthine dehydrogenase impairs growth and RT fertility and accelerates leaf senescence in transgenic Arabidopsis RT plants."; RL Plant Cell Physiol. 48:1484-1495(2007). CC -!- FUNCTION: Key enzyme involved in purine catabolism. Catalyzes the CC oxidation of hypoxanthine to xanthine and the oxidation of xanthine to CC urate. Regulates the level of ureides and plays a role during plant CC growth and development and senescence. {ECO:0000269|PubMed:17872919}. CC -!- CATALYTIC ACTIVITY: CC Reaction=H2O + NAD(+) + xanthine = H(+) + NADH + urate; CC Xref=Rhea:RHEA:16669, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:17712, ChEBI:CHEBI:17775, ChEBI:CHEBI:57540, CC ChEBI:CHEBI:57945; EC=1.17.1.4; CC Evidence={ECO:0000250|UniProtKB:Q8GUQ8}; CC -!- CATALYTIC ACTIVITY: CC Reaction=H2O + hypoxanthine + NAD(+) = H(+) + NADH + xanthine; CC Xref=Rhea:RHEA:24670, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:17368, ChEBI:CHEBI:17712, ChEBI:CHEBI:57540, CC ChEBI:CHEBI:57945; EC=1.17.1.4; CC Evidence={ECO:0000250|UniProtKB:Q8GUQ8}; CC -!- COFACTOR: CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135; Evidence={ECO:0000250}; CC Note=Binds 2 [2Fe-2S] clusters. {ECO:0000250}; CC -!- COFACTOR: CC Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250}; CC -!- COFACTOR: CC Name=Mo-molybdopterin; Xref=ChEBI:CHEBI:71302; Evidence={ECO:0000250}; CC Note=Binds 1 Mo-molybdopterin (Mo-MPT) cofactor per subunit. CC {ECO:0000250}; CC -!- SUBUNIT: Homodimer. {ECO:0000250}. CC -!- TISSUE SPECIFICITY: Expressed in roots, leaves, stems, flowers and CC siliques. CC -!- MISCELLANEOUS: Plants silencing simultaneously XDH1 and XDH2 show CC reduced growth, impaired silique development, increased seed sterility, CC precocious senescence of mature leaves and overaccumulation of CC xanthine. {ECO:0000305|PubMed:17872919}. CC -!- SIMILARITY: Belongs to the xanthine dehydrogenase family. CC {ECO:0000305}. CC -!- SEQUENCE CAUTION: CC Sequence=CAB45451.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305}; CC Sequence=CAB80207.1; 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; AY518202; AAR99079.1; -; mRNA. DR EMBL; AL079347; CAB45451.1; ALT_SEQ; Genomic_DNA. DR EMBL; AL161586; CAB80207.1; ALT_SEQ; Genomic_DNA. DR EMBL; CP002687; AEE86435.1; -; Genomic_DNA. DR PIR; T10236; T10236. DR RefSeq; NP_195216.2; NM_119656.3. DR AlphaFoldDB; F4JLI5; -. DR SMR; F4JLI5; -. DR STRING; 3702.F4JLI5; -. DR PaxDb; 3702-AT4G34900-1; -. DR ProteomicsDB; 242524; -. DR EnsemblPlants; AT4G34900.1; AT4G34900.1; AT4G34900. DR GeneID; 829642; -. DR Gramene; AT4G34900.1; AT4G34900.1; AT4G34900. DR KEGG; ath:AT4G34900; -. DR Araport; AT4G34900; -. DR TAIR; AT4G34900; XDH2. DR eggNOG; KOG0430; Eukaryota. DR HOGENOM; CLU_001681_1_2_1; -. DR InParanoid; F4JLI5; -. DR OrthoDB; 761229at2759; -. DR PRO; PR:F4JLI5; -. DR Proteomes; UP000006548; Chromosome 4. DR ExpressionAtlas; F4JLI5; baseline and differential. DR GO; GO:0005886; C:plasma membrane; HDA:TAIR. DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW. DR GO; GO:0071949; F:FAD binding; IEA:InterPro. DR GO; GO:0005506; F:iron ion binding; IEA:InterPro. DR GO; GO:0004854; F:xanthine dehydrogenase activity; IEA:UniProtKB-EC. DR GO; GO:0046110; P:xanthine metabolic process; IMP:UniProtKB. DR Gene3D; 3.10.20.30; -; 1. DR Gene3D; 3.30.465.10; -; 1. DR Gene3D; 1.10.150.120; [2Fe-2S]-binding domain; 1. DR Gene3D; 3.90.1170.50; Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead; 1. DR Gene3D; 3.30.365.10; Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain; 4. DR Gene3D; 3.30.390.50; CO dehydrogenase flavoprotein, C-terminal domain; 1. DR Gene3D; 3.30.43.10; Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase, domain 2; 1. DR InterPro; IPR002888; 2Fe-2S-bd. DR InterPro; IPR036884; 2Fe-2S-bd_dom_sf. DR InterPro; IPR036010; 2Fe-2S_ferredoxin-like_sf. DR InterPro; IPR001041; 2Fe-2S_ferredoxin-type. DR InterPro; IPR006058; 2Fe2S_fd_BS. DR InterPro; IPR000674; Ald_Oxase/Xan_DH_a/b. DR InterPro; IPR036856; Ald_Oxase/Xan_DH_a/b_sf. DR InterPro; IPR016208; Ald_Oxase/xanthine_DH-like. DR InterPro; IPR008274; AldOxase/xan_DH_MoCoBD1. DR InterPro; IPR046867; AldOxase/xan_DH_MoCoBD2. DR InterPro; IPR037165; AldOxase/xan_DH_Mopterin-bd_sf. DR InterPro; IPR012675; Beta-grasp_dom_sf. DR InterPro; IPR005107; CO_DH_flav_C. DR InterPro; IPR036683; CO_DH_flav_C_dom_sf. DR InterPro; IPR016166; FAD-bd_PCMH. DR InterPro; IPR036318; FAD-bd_PCMH-like_sf. DR InterPro; IPR016167; FAD-bd_PCMH_sub1. DR InterPro; IPR016169; FAD-bd_PCMH_sub2. DR InterPro; IPR002346; Mopterin_DH_FAD-bd. DR PANTHER; PTHR11908; XANTHINE DEHYDROGENASE; 1. DR PANTHER; PTHR11908:SF100; XANTHINE DEHYDROGENASE; 1. DR Pfam; PF01315; Ald_Xan_dh_C; 1. DR Pfam; PF03450; CO_deh_flav_C; 1. DR Pfam; PF00941; FAD_binding_5; 1. DR Pfam; PF00111; Fer2; 1. DR Pfam; PF01799; Fer2_2; 1. DR Pfam; PF02738; MoCoBD_1; 1. DR Pfam; PF20256; MoCoBD_2; 1. DR PIRSF; PIRSF000127; Xanthine_DH; 1. DR SMART; SM01008; Ald_Xan_dh_C; 1. DR SMART; SM01092; CO_deh_flav_C; 1. DR SUPFAM; SSF54292; 2Fe-2S ferredoxin-like; 1. DR SUPFAM; SSF55447; CO dehydrogenase flavoprotein C-terminal domain-like; 1. DR SUPFAM; SSF47741; CO dehydrogenase ISP C-domain like; 1. DR SUPFAM; SSF54665; CO dehydrogenase molybdoprotein N-domain-like; 1. DR SUPFAM; SSF56176; FAD-binding/transporter-associated domain-like; 1. DR SUPFAM; SSF56003; Molybdenum cofactor-binding domain; 1. DR PROSITE; PS00197; 2FE2S_FER_1; 1. DR PROSITE; PS51085; 2FE2S_FER_2; 1. DR PROSITE; PS51387; FAD_PCMH; 1. DR Genevisible; F4JLI5; AT. PE 2: Evidence at transcript level; KW 2Fe-2S; FAD; Flavoprotein; Iron; Iron-sulfur; Metal-binding; Molybdenum; KW NAD; Oxidoreductase; Reference proteome. FT CHAIN 1..1353 FT /note="Xanthine dehydrogenase 2" FT /id="PRO_0000417458" FT DOMAIN 7..93 FT /note="2Fe-2S ferredoxin-type" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT DOMAIN 249..434 FT /note="FAD-binding PCMH-type" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00718" FT ACT_SITE 1289 FT /note="Proton acceptor" FT /evidence="ECO:0000250" FT BINDING 45 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="1" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 50 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="1" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 53 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="1" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 75 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="1" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 115 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="2" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 118 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="2" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 151 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="2" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 153 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /ligand_label="2" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465" FT BINDING 277..284 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 357 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 367..371 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 380 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 424 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 442 FT /ligand="FAD" FT /ligand_id="ChEBI:CHEBI:57692" FT /evidence="ECO:0000250" FT BINDING 788 FT /ligand="Mo-molybdopterin" FT /ligand_id="ChEBI:CHEBI:71302" FT /ligand_part="Mo" FT /ligand_part_id="ChEBI:CHEBI:28685" FT /evidence="ECO:0000250" FT BINDING 819 FT /ligand="Mo-molybdopterin" FT /ligand_id="ChEBI:CHEBI:71302" FT /ligand_part="Mo" FT /ligand_part_id="ChEBI:CHEBI:28685" FT /evidence="ECO:0000250" FT BINDING 823 FT /ligand="substrate" FT /evidence="ECO:0000250" FT BINDING 901 FT /ligand="substrate" FT /evidence="ECO:0000250" FT BINDING 933 FT /ligand="Mo-molybdopterin" FT /ligand_id="ChEBI:CHEBI:71302" FT /ligand_part="Mo" FT /ligand_part_id="ChEBI:CHEBI:28685" FT /evidence="ECO:0000250" FT BINDING 935 FT /ligand="substrate" FT /evidence="ECO:0000250" FT BINDING 1031 FT /ligand="substrate" FT /evidence="ECO:0000250" FT BINDING 1100 FT /ligand="Mo-molybdopterin" FT /ligand_id="ChEBI:CHEBI:71302" FT /ligand_part="Mo" FT /ligand_part_id="ChEBI:CHEBI:28685" FT /evidence="ECO:0000250" FT CONFLICT 401 FT /note="V -> A (in Ref. 1; AAR99079)" FT /evidence="ECO:0000305" SQ SEQUENCE 1353 AA; 148762 MW; FC1AD990E687DD3A CRC64; MEQNEFMEAI MYVNGVRRVL PDGLAHMTLL EYLRDLGLTG TKLGCGEGGC GSCTVMVSSY DRESKTCVHY AVNACLAPLY SVEGMHVISI EGVGHRKLGL HPLQESLASS HGSQCGFCTP GFVMSMYALL RSSKNSPSEE EIEECLAGNL CRCTGYRPII DAFRVFAKSD DALYSGLSSL SLQDGSNICP STGKPCSCGS KTTSEAATCN EDRFQSISYS DIDGAKYTDK ELIFPPELLL RKLAPLKLGG NEGITWYRPV SLQNLLELKA NFPDAKLLVG NTEVGIEMRL KRLQYPVLIS AAQVPELNAL NVNDNGIEVG SALRLSELLR LFRKVVKERP AHETSACKAF IEQLKWFAGT QIRNVACIGG NICTASPISD LNPLWMASRA EFRIINCNGD VRSIPAKDFF LGYRKVDMGS NEILLSVFLP WTRPLEYVKE FKQAHRRDDD IAIVNGGMRV FLEEKGQQLF VSDASIVYGG VAPLSLRARN TEELLIGKNW NKCLLQDALK VIQSDVLIKE GAPGGMVEFR KSLTLSFFFK FFLWVTHHVN NVNPTIETFP PSHMSAVQLV PRFSRIGKQD YETVKQGTSV GLPEVHLSAR MQVTGEAEYT DDTPLPPCTL HAALVLSKVP HARILSVDDS AAKSSSGFVG LFLAKDVPGN NMIGPIVADE ELFATDVVTC VGQVIGVLVA DTHENAKTAA RKVDVRYQEL PAILSIKEAI NAKSFHPNTE RRLRKGDVEL CFQSGQCDRI IEGEVQMGGQ EHFYLEPNGS LVWTIDGGNE VHMISSTQAP QQHQKYVSHV LGLPMSKVVC KTKRLGGGFG GKETRSAFIA AAASVPSYLL NRPVKLILDR DVDMMITGHR HSFVGKYKVG FTNEGKILAL DLEIYNNGGN SMDLSLSNLE RAMFHSDNVY EIPHVRIVGN VCFTNFPSNT AFRGFGGPQG MLITENWIQR IAAELDKIPE EIKEMNFQVE GSITHYFQSL QHCTLHQLWK ELKVSSNFLK TRREADEFNS HNRWKKRGVA MVPTKFGISF TTKFMNQAGA LVHVYTDGTV LVTHGGVEMG QGLHTKVAQV AATAFNILLS SVFVSETSTD KVPNASPTAA SASSDMYGAA VLDACEQIIA RMEPVASKHN FNTFSELASA CYFQRIDLSA HGFHIVPELE FDWVSGKGNA YRYYTYGAAF AEVEIDTLTG DFHTRKADIM LDLGYSLNPT IDIGQIEGAF VQGLGWVALE ELKWGDAAHK WIKPGSLLTC GPGSYKIPSI NDMPFQLNVS LLKGNPNAKA IHSSKAVGEP PFFLAASAFF AIKEAIKAAR SEVGLTNWFP LETPATPERI RMACFDEFSA PFANSDFCPK LSV //