ID F0UKI1_AJEC8 Unreviewed; 549 AA.
AC F0UKI1;
DT 03-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 03-MAY-2011, sequence version 1.
DT 24-JAN-2024, entry version 63.
DE RecName: Full=Inosine-5'-monophosphate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
DE Short=IMP dehydrogenase {ECO:0000256|HAMAP-Rule:MF_03156};
DE Short=IMPD {ECO:0000256|HAMAP-Rule:MF_03156};
DE Short=IMPDH {ECO:0000256|HAMAP-Rule:MF_03156};
DE EC=1.1.1.205 {ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
GN ORFNames=HCEG_05150 {ECO:0000313|EMBL:EGC45935.1}, I7I53_04817
GN {ECO:0000313|EMBL:QSS56565.1};
OS Ajellomyces capsulatus (strain H88) (Darling's disease fungus) (Histoplasma
OS capsulatum).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Ajellomycetaceae; Histoplasma.
OX NCBI_TaxID=544711 {ECO:0000313|Proteomes:UP000008142};
RN [1] {ECO:0000313|EMBL:EGC45935.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=H88 {ECO:0000313|EMBL:EGC45935.1};
RG The Broad Institute Genome Sequencing Platform;
RA Champion M., Cuomo C., Ma L.-J., Henn M.R., Sil A., Goldman B., Young S.K.,
RA Kodira C.D., Zeng Q., Koehrsen M., Alvarado L., Berlin A., Borenstein D.,
RA Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J., Griggs A.,
RA Gujja S., Heiman D., Hepburn T., Howarth C., Jen D., Larson L., Lewis B.,
RA Mehta T., Park D., Pearson M., Roberts A., Saif S., Shea T., Shenoy N.,
RA Sisk P., Stolte C., Sykes S., Walk T., White J., Yandava C., Klein B.,
RA McEwen J.G., Puccia R., Goldman G.H., Felipe M.S., Nino-Vega G.,
RA San-Blas G., Taylor J., Mendoza L., Galagan J., Nusbaum C., Birren B.;
RT "Annotation of Ajellomyces capsulatus strain H88.";
RL Submitted (JUL-2008) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Proteomes:UP000008142}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=H88 {ECO:0000313|Proteomes:UP000008142};
RA Champion M., Cuomo C., Ma L.-J., Henn M.R., Sil A., Goldman B., Young S.K.,
RA Kodira C.D., Zeng Q., Koehrsen M., Alvarado L., Berlin A., Borenstein D.,
RA Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J., Griggs A.,
RA Gujja S., Heiman D., Hepburn T., Howarth C., Jen D., Larson L., Lewis B.,
RA Mehta T., Park D., Pearson M., Roberts A., Saif S., Shea T., Shenoy N.,
RA Sisk P., Stolte C., Sykes S., Walk T., White J., Yandava C., Klein B.,
RA McEwen J.G., Puccia R., Goldman G.H., Felipe M.S., Nino-Vega G.,
RA San-Blas G., Taylor J., Mendoza L., Galagan J., Nusbaum C., Birren B.;
RT "Annotation of Ajellomyces capsulatus strain H88.";
RL Submitted (JUL-2008) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:QSS56565.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=H88 {ECO:0000313|EMBL:QSS56565.1};
RA Voorhies M., Cohen S., Shea T.P., Petrus S., Munoz J.F., Poplawski S.,
RA Goldman W.E., Michael T., Cuomo C.A., Sil A., Beyhan S.;
RT "Chromosome-level genome assembly of a human fungal pathogen reveals
RT clustering of transcriptionally co-regulated genes.";
RL Submitted (JAN-2021) to the EMBL/GenBank/DDBJ databases.
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.
CC {ECO:0000256|HAMAP-Rule:MF_03156}.
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:0000256|ARBA:ARBA00024264,
CC ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|ARBA:ARBA00001958,
CC ECO:0000256|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:0000256|HAMAP-Rule:MF_03156}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via de novo pathway; XMP
CC from IMP: step 1/1. {ECO:0000256|HAMAP-Rule:MF_03156,
CC ECO:0000256|RuleBase:RU003928}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family.
CC {ECO:0000256|ARBA:ARBA00005502, ECO:0000256|HAMAP-Rule:MF_03156,
CC ECO:0000256|RuleBase:RU003927}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03156}.
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DR EMBL; DS990639; EGC45935.1; -; Genomic_DNA.
DR EMBL; CP069106; QSS56565.1; -; Genomic_DNA.
DR AlphaFoldDB; F0UKI1; -.
DR SMR; F0UKI1; -.
DR STRING; 544711.F0UKI1; -.
DR VEuPathDB; FungiDB:I7I53_04817; -.
DR HOGENOM; CLU_022552_2_1_1; -.
DR OMA; MGYCGAK; -.
DR UniPathway; UPA00601; UER00295.
DR Proteomes; UP000008142; Unassembled WGS sequence.
DR Proteomes; UP000663419; Chromosome 5.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003938; F:IMP dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006177; P:GMP biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd04601; CBS_pair_IMPDH; 1.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_01964; IMPDH; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR000644; CBS_dom.
DR InterPro; IPR046342; CBS_dom_sf.
DR InterPro; IPR005990; IMP_DH.
DR InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR NCBIfam; TIGR01302; IMP_dehydrog; 1.
DR PANTHER; PTHR11911:SF111; INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE; 1.
DR PANTHER; PTHR11911; INOSINE-5-MONOPHOSPHATE DEHYDROGENASE RELATED; 1.
DR Pfam; PF00571; CBS; 2.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000130; IMPDH; 1.
DR SMART; SM00116; CBS; 2.
DR SMART; SM01240; IMPDH; 1.
DR SUPFAM; SSF54631; CBS-domain pair; 1.
DR SUPFAM; SSF51412; Inosine monophosphate dehydrogenase (IMPDH); 1.
DR PROSITE; PS51371; CBS; 2.
DR PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE 3: Inferred from homology;
KW CBS domain {ECO:0000256|ARBA:ARBA00023122, ECO:0000256|PROSITE-
KW ProRule:PRU00703}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03156};
KW GMP biosynthesis {ECO:0000256|ARBA:ARBA00022749, ECO:0000256|HAMAP-
KW Rule:MF_03156};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03156};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_03156};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_03156,
KW ECO:0000256|RuleBase:RU003927};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_03156};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_03156}; Reference proteome {ECO:0000313|Proteomes:UP000008142}.
FT DOMAIN 139..198
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT DOMAIN 202..258
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT ACT_SITE 353
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT ACT_SITE 463
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT BINDING 296..298
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 346..348
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 348
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:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 350
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:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 351
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 353
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:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 386..388
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 409..410
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 434..438
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 475
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 530
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
SQ SEQUENCE 549 AA; 58083 MW; EE1A720CF4DC9B0F CRC64;
MPISNGDASG SAYERFSGNS AFLDHTKALE VLKSDYTGDG LDINQLIDSE KRGALTYNDF
LILPGYIGFP ASDVSLETPV TRRITLKAPL LSSPMDTVTE HSMAIHMALL GGLGVIHHNC
SAEDQANMVR KVKRYENGFI LEPVVLSPTT TVAEAKALKE KWGFGGFPVT ENGTLPSKLI
GMITSRDIQF HPTGEDPVTA VMTTDLVTAP SGTTLAEANE VLRSSKKGKL PIVDSEGNLV
SLLSRSDLMK NLHYPLASKL PHSKQLICAA AIGTRPEDKE RLQKLVEAGL DIVILDSSQG
NSIYQIEMIK YVKETYPELD VIAGNVVTRD QAAALIAAGA DGLRIGMGSG SACITQEVMA
VGRPQAAAVR SVSQFAARFG VPCIADGGIQ NIGHIVKGLA MGATTVMMGG LLAGTTESPG
SYFVSREGQL VKAYRGMGSI DAMEDKKAGG GKGGQANNAG TARYFSESDR LLVAQGVSGS
VLDRGSVTKF VPYLMAGIQH SLQDIGVKSL KELHDGVAAG TVRFEVRSVS AQAEGGVHGL
HSFDKKLYS
//
