ID B6HC24_PENRW Unreviewed; 546 AA.
AC B6HC24;
DT 16-DEC-2008, integrated into UniProtKB/TrEMBL.
DT 16-DEC-2008, sequence version 1.
DT 24-JAN-2024, entry version 93.
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=Pc18g05320 {ECO:0000313|EMBL:CAP94756.1}, PCH_Pc18g05320
GN {ECO:0000313|EMBL:CAP94756.1};
OS Penicillium rubens (strain ATCC 28089 / DSM 1075 / NRRL 1951 / Wisconsin
OS 54-1255) (Penicillium chrysogenum).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Penicillium;
OC Penicillium chrysogenum species complex.
OX NCBI_TaxID=500485 {ECO:0000313|EMBL:CAP94756.1, ECO:0000313|Proteomes:UP000000724};
RN [1] {ECO:0000313|EMBL:CAP94756.1, ECO:0000313|Proteomes:UP000000724}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 28089 / DSM 1075 / NRRL 1951 / Wisconsin 54-1255
RC {ECO:0000313|Proteomes:UP000000724};
RX PubMed=18820685; DOI=10.1038/nbt.1498;
RA van den Berg M.A., Albang R., Albermann K., Badger J.H., Daran J.-M.,
RA Driessen A.J.M., Garcia-Estrada C., Fedorova N.D., Harris D.M.,
RA Heijne W.H.M., Joardar V.S., Kiel J.A.K.W., Kovalchuk A., Martin J.F.,
RA Nierman W.C., Nijland J.G., Pronk J.T., Roubos J.A., van der Klei I.J.,
RA van Peij N.N.M.E., Veenhuis M., von Doehren H., Wagner C., Wortman J.R.,
RA Bovenberg R.A.L.;
RT "Genome sequencing and analysis of the filamentous fungus Penicillium
RT chrysogenum.";
RL Nat. Biotechnol. 26:1161-1168(2008).
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; AM920433; CAP94756.1; -; Genomic_DNA.
DR RefSeq; XP_002562359.1; XM_002562313.1.
DR AlphaFoldDB; B6HC24; -.
DR STRING; 500485.B6HC24; -.
DR GeneID; 8304889; -.
DR KEGG; pcs:Pc18g05320; -.
DR VEuPathDB; FungiDB:PCH_Pc18g05320; -.
DR eggNOG; KOG2550; Eukaryota.
DR HOGENOM; CLU_022552_2_1_1; -.
DR OMA; MGYCGAK; -.
DR OrthoDB; 166969at2759; -.
DR BioCyc; PCHR:PC18G05320-MONOMER; -.
DR UniPathway; UPA00601; UER00295.
DR Proteomes; UP000000724; Contig Pc00c18.
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:UP000000724}.
FT DOMAIN 135..194
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT DOMAIN 198..254
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT ACT_SITE 349
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT ACT_SITE 460
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT BINDING 292..294
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 342..344
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 344
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 346
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 347
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 349
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 382..384
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 405..406
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 430..434
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 472
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 527
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 546 AA; 57739 MW; 50DEF173A149E3F5 CRC64;
MPITAGDAAP GAAMKAEITD YAKALEVVKT YTTADGLDAD TLLDSDKHGA LTYNDFLILP
GYIGFPASDV SLDTPVTKRI SLKTPLLSSP MDTVTEHNMA IHMALLGGLG VIHHNCSPED
QAEMVRKVKR YENGFILDPV VISPKATVGE VKELKAKWGF GGFPVTENGT LKSKLVGMVT
SRDIQFHTDL NEPVTAVMAT DLVTAPAGTT LTEANQVLRQ SKKGKLPIVD ANGNIVSLLS
RSDLMKNLHY PLASKLPDSK QLICAAAIGT REEDKKRLQL LVEAGLDIVI LDSSQGNSMY
QIEMIKYIKK NMPEIDVIGG NVVTREQAAA LIAAGVDGLR IGMGSGSACI TQEVMAVGRP
QAASVRSVAS FAARFGVPCI ADGGIQNVGH IVKGLAMGAS TIMMGGLLAG TTESPGEYFV
SNEGQLVKAY RGMGSIAAME DKKAGGDGKD SKASNAGTAR YFSEKDRVLV AQGVAGSVLD
RGSVTKFVPY LVAGVQHSLQ DIGVKSLADL HDGVNKGTVR FEMRSASAMT EGNVHGLHSY
DKKLYS
//
