IMDH2_RAT
ID IMDH2_RAT Reviewed; 514 AA.
AC E9PU28;
DT 22-FEB-2012, integrated into UniProtKB/Swiss-Prot.
DT 05-APR-2011, sequence version 1.
DT 03-AUG-2022, entry version 70.
DE RecName: Full=Inosine-5'-monophosphate dehydrogenase 2 {ECO:0000255|HAMAP-Rule:MF_03156};
DE Short=IMP dehydrogenase 2 {ECO:0000255|HAMAP-Rule:MF_03156};
DE Short=IMPD 2 {ECO:0000255|HAMAP-Rule:MF_03156};
DE Short=IMPDH 2 {ECO:0000255|HAMAP-Rule:MF_03156};
DE EC=1.1.1.205 {ECO:0000250|UniProtKB:P12268};
GN Name=Impdh2;
OS Rattus norvegicus (Rat).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC Murinae; Rattus.
OX NCBI_TaxID=10116;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Brown Norway;
RX PubMed=15057822; DOI=10.1038/nature02426;
RA Gibbs R.A., Weinstock G.M., Metzker M.L., Muzny D.M., Sodergren E.J.,
RA Scherer S., Scott G., Steffen D., Worley K.C., Burch P.E., Okwuonu G.,
RA Hines S., Lewis L., Deramo C., Delgado O., Dugan-Rocha S., Miner G.,
RA Morgan M., Hawes A., Gill R., Holt R.A., Adams M.D., Amanatides P.G.,
RA Baden-Tillson H., Barnstead M., Chin S., Evans C.A., Ferriera S.,
RA Fosler C., Glodek A., Gu Z., Jennings D., Kraft C.L., Nguyen T.,
RA Pfannkoch C.M., Sitter C., Sutton G.G., Venter J.C., Woodage T., Smith D.,
RA Lee H.-M., Gustafson E., Cahill P., Kana A., Doucette-Stamm L.,
RA Weinstock K., Fechtel K., Weiss R.B., Dunn D.M., Green E.D.,
RA Blakesley R.W., Bouffard G.G., De Jong P.J., Osoegawa K., Zhu B., Marra M.,
RA Schein J., Bosdet I., Fjell C., Jones S., Krzywinski M., Mathewson C.,
RA Siddiqui A., Wye N., McPherson J., Zhao S., Fraser C.M., Shetty J.,
RA Shatsman S., Geer K., Chen Y., Abramzon S., Nierman W.C., Havlak P.H.,
RA Chen R., Durbin K.J., Egan A., Ren Y., Song X.-Z., Li B., Liu Y., Qin X.,
RA Cawley S., Cooney A.J., D'Souza L.M., Martin K., Wu J.Q.,
RA Gonzalez-Garay M.L., Jackson A.R., Kalafus K.J., McLeod M.P.,
RA Milosavljevic A., Virk D., Volkov A., Wheeler D.A., Zhang Z., Bailey J.A.,
RA Eichler E.E., Tuzun E., Birney E., Mongin E., Ureta-Vidal A., Woodwark C.,
RA Zdobnov E., Bork P., Suyama M., Torrents D., Alexandersson M., Trask B.J.,
RA Young J.M., Huang H., Wang H., Xing H., Daniels S., Gietzen D., Schmidt J.,
RA Stevens K., Vitt U., Wingrove J., Camara F., Mar Alba M., Abril J.F.,
RA Guigo R., Smit A., Dubchak I., Rubin E.M., Couronne O., Poliakov A.,
RA Huebner N., Ganten D., Goesele C., Hummel O., Kreitler T., Lee Y.-A.,
RA Monti J., Schulz H., Zimdahl H., Himmelbauer H., Lehrach H., Jacob H.J.,
RA Bromberg S., Gullings-Handley J., Jensen-Seaman M.I., Kwitek A.E.,
RA Lazar J., Pasko D., Tonellato P.J., Twigger S., Ponting C.P., Duarte J.M.,
RA Rice S., Goodstadt L., Beatson S.A., Emes R.D., Winter E.E., Webber C.,
RA Brandt P., Nyakatura G., Adetobi M., Chiaromonte F., Elnitski L.,
RA Eswara P., Hardison R.C., Hou M., Kolbe D., Makova K., Miller W.,
RA Nekrutenko A., Riemer C., Schwartz S., Taylor J., Yang S., Zhang Y.,
RA Lindpaintner K., Andrews T.D., Caccamo M., Clamp M., Clarke L., Curwen V.,
RA Durbin R.M., Eyras E., Searle S.M., Cooper G.M., Batzoglou S., Brudno M.,
RA Sidow A., Stone E.A., Payseur B.A., Bourque G., Lopez-Otin C., Puente X.S.,
RA Chakrabarti K., Chatterji S., Dewey C., Pachter L., Bray N., Yap V.B.,
RA Caspi A., Tesler G., Pevzner P.A., Haussler D., Roskin K.M., Baertsch R.,
RA Clawson H., Furey T.S., Hinrichs A.S., Karolchik D., Kent W.J.,
RA Rosenbloom K.R., Trumbower H., Weirauch M., Cooper D.N., Stenson P.D.,
RA Ma B., Brent M., Arumugam M., Shteynberg D., Copley R.R., Taylor M.S.,
RA Riethman H., Mudunuri U., Peterson J., Guyer M., Felsenfeld A., Old S.,
RA Mockrin S., Collins F.S.;
RT "Genome sequence of the Brown Norway rat yields insights into mammalian
RT evolution.";
RL Nature 428:493-521(2004).
RN [2]
RP PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-416, AND IDENTIFICATION BY
RP MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX PubMed=22673903; DOI=10.1038/ncomms1871;
RA Lundby A., Secher A., Lage K., Nordsborg N.B., Dmytriyev A., Lundby C.,
RA Olsen J.V.;
RT "Quantitative maps of protein phosphorylation sites across 14 different rat
RT organs and tissues.";
RL Nat. Commun. 3:876-876(2012).
CC -!- FUNCTION: Catalyzes the conversion of inosine 5'-phosphate (IMP) to
CC xanthosine 5'-phosphate (XMP), the first committed and rate-limiting
CC step in the de novo synthesis of guanine nucleotides, and therefore
CC plays an important role in the regulation of cell growth. Could also
CC have a single-stranded nucleic acid-binding activity and could play a
CC role in RNA and/or DNA metabolism. It may also have a role in the
CC development of malignancy and the growth progression of some tumors.
CC {ECO:0000250|UniProtKB:P12268}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + IMP + NAD(+) = H(+) + NADH + XMP; Xref=Rhea:RHEA:11708,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57464,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:58053;
CC EC=1.1.1.205; Evidence={ECO:0000250|UniProtKB:P12268};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03156};
CC -!- ACTIVITY REGULATION: Mycophenolic acid (MPA) is a non-competitive
CC inhibitor that prevents formation of the closed enzyme conformation by
CC binding to the same site as the amobile flap. In contrast, mizoribine
CC monophosphate (MZP) is a competitive inhibitor that induces the closed
CC conformation. MPA is a potent inhibitor of mammalian IMPDHs but a poor
CC inhibitor of the bacterial enzymes. MZP is a more potent inhibitor of
CC bacterial IMPDH. {ECO:0000255|HAMAP-Rule:MF_03156}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via de novo pathway; XMP
CC from IMP: step 1/1. {ECO:0000250|UniProtKB:P12268}.
CC -!- SUBUNIT: Homotetramer. Interacts with CLOCK; in a circadian manner.
CC Interacts with ANKRD9; leading to its ubiquitination and degradation by
CC the proteasome. {ECO:0000250|UniProtKB:P12268}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P12268}. Nucleus
CC {ECO:0000250|UniProtKB:P12268}. Cytoplasm, cytosol
CC {ECO:0000250|UniProtKB:P12268}. Note=Can form fiber-like subcellular
CC structures termed 'cytoophidia' in response to intracellular guanine-
CC nucleotide depletion. {ECO:0000250|UniProtKB:P12268}.
CC -!- PTM: Acetylated by CLOCK in a circadian manner.
CC {ECO:0000250|UniProtKB:P12268}.
CC -!- PTM: Ubiquitinated leading to its degradation by the proteasome.
CC {ECO:0000250|UniProtKB:P12268}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family. {ECO:0000255|HAMAP-
CC Rule:MF_03156}.
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DR AlphaFoldDB; E9PU28; -.
DR SMR; E9PU28; -.
DR STRING; 10116.ENSRNOP00000040635; -.
DR iPTMnet; E9PU28; -.
DR PhosphoSitePlus; E9PU28; -.
DR jPOST; E9PU28; -.
DR PaxDb; E9PU28; -.
DR PeptideAtlas; E9PU28; -.
DR PRIDE; E9PU28; -.
DR RGD; 735092; Impdh2.
DR VEuPathDB; HostDB:ENSRNOG00000031965; -.
DR eggNOG; KOG2550; Eukaryota.
DR HOGENOM; CLU_022552_2_1_1; -.
DR InParanoid; E9PU28; -.
DR OMA; HDYHMTL; -.
DR PhylomeDB; E9PU28; -.
DR TreeFam; TF300378; -.
DR Reactome; R-RNO-6798695; Neutrophil degranulation.
DR Reactome; R-RNO-73817; Purine ribonucleoside monophosphate biosynthesis.
DR Reactome; R-RNO-9748787; Azathioprine ADME.
DR UniPathway; UPA00601; UER00295.
DR PRO; PR:E9PU28; -.
DR Proteomes; UP000002494; Chromosome 8.
DR Bgee; ENSRNOG00000031965; Expressed in spleen and 20 other tissues.
DR Genevisible; E9PU28; RN.
DR GO; GO:0005737; C:cytoplasm; ISO:RGD.
DR GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR GO; GO:0005634; C:nucleus; ISO:RGD.
DR GO; GO:0042802; F:identical protein binding; IPI:RGD.
DR GO; GO:0003938; F:IMP dehydrogenase activity; IDA:RGD.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000166; F:nucleotide binding; ISO:RGD.
DR GO; GO:0097294; P:'de novo' XMP biosynthetic process; ISO:RGD.
DR GO; GO:0071353; P:cellular response to interleukin-4; ISO:RGD.
DR GO; GO:0007623; P:circadian rhythm; ISS:UniProtKB.
DR GO; GO:0006177; P:GMP biosynthetic process; ISO:RGD.
DR GO; GO:0006183; P:GTP biosynthetic process; ISS:UniProtKB.
DR GO; GO:0046651; P:lymphocyte proliferation; ISO:RGD.
DR GO; GO:0006164; P:purine nucleotide biosynthetic process; IDA:RGD.
DR GO; GO:0060041; P:retina development in camera-type eye; IEP:RGD.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_01964; IMPDH; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR000644; CBS_dom.
DR InterPro; IPR005990; IMP_DH.
DR InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR PANTHER; PTHR11911; PTHR11911; 1.
DR Pfam; PF00571; CBS; 2.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000130; IMPDH; 1.
DR SMART; SM00116; CBS; 2.
DR TIGRFAMs; TIGR01302; IMP_dehydrog; 1.
DR PROSITE; PS51371; CBS; 2.
DR PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE 1: Evidence at protein level;
KW Acetylation; CBS domain; Cytoplasm; GMP biosynthesis; Isopeptide bond;
KW Metal-binding; NAD; Nucleus; Oxidoreductase; Phosphoprotein; Potassium;
KW Purine biosynthesis; Reference proteome; Repeat; Ubl conjugation.
FT CHAIN 1..514
FT /note="Inosine-5'-monophosphate dehydrogenase 2"
FT /id="PRO_0000415674"
FT DOMAIN 114..173
FT /note="CBS 1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT DOMAIN 179..237
FT /note="CBS 2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT ACT_SITE 331
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT ACT_SITE 429
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 274..276
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 324..326
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 326
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 328
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 329
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 331
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 364..366
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 387..388
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 411..415
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 441
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 500
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 501
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT BINDING 502
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03156"
FT MOD_RES 122
FT /note="Phosphoserine"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT MOD_RES 160
FT /note="Phosphoserine"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT MOD_RES 400
FT /note="Phosphotyrosine"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT MOD_RES 416
FT /note="Phosphoserine"
FT /evidence="ECO:0007744|PubMed:22673903"
FT MOD_RES 511
FT /note="N6-acetyllysine"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT CROSSLNK 195
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in SUMO2)"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT CROSSLNK 208
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in SUMO2)"
FT /evidence="ECO:0000250|UniProtKB:P12268"
FT CROSSLNK 438
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in SUMO2)"
FT /evidence="ECO:0000250|UniProtKB:P12268"
SQ SEQUENCE 514 AA; 55815 MW; 033F6EED4CF64EA6 CRC64;
MADYLISGGT SYVPDDGLTA QQLFNCGDGL TYNDFLILPG YIDFTADQVD LTSALTKKIT
LKTPLVSSPM DTVTEAGMAI AMALTGGIGF IHHNCTPEFQ ANEVRKVKKY EQGFITDPVV
LSPKDRVRDV FEAKARHGFC GIPITDTGRM GSRLVGIISS RDIDFLKEEE HDRFLEEIMT
KREDLVVAPA GVTLKEANEI LQRSKKGKLP IVNESDELVA IIARTDLKKN RDYPLASKDT
KKQLLCGAAI GTHEDDKYRL DLLALAGVDV VVLDSSQGNS IFQINMIKYI KEKYPNLQVI
GGNVVTAAQA KNLIDAGVDA LRVGMGSGSI CITQEVLACG RPQATAVYKV SEYARRFGVP
VIADGGIQNV GHIAKALALG ASTVMMGSLL AATTEAPGEY FFSDGIRLKK YRGMGSLDAM
DKHLSSQNRY FSEADKIKVA QGVSGAVQDK GSIHKFVPYL IAGIQHSCQD IGAKSLTQVR
AMMYSGELKF EKRTSSAQVE GGVHGLHSYE KRLF
