ID D6S8L2_FINMA Unreviewed; 483 AA.
AC D6S8L2;
DT 10-AUG-2010, integrated into UniProtKB/TrEMBL.
DT 10-AUG-2010, sequence version 1.
DT 24-JAN-2024, entry version 67.
DE RecName: Full=Inosine-5'-monophosphate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01964, ECO:0000256|RuleBase:RU003928};
DE Short=IMP dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01964};
DE Short=IMPD {ECO:0000256|HAMAP-Rule:MF_01964};
DE Short=IMPDH {ECO:0000256|HAMAP-Rule:MF_01964};
DE EC=1.1.1.205 {ECO:0000256|HAMAP-Rule:MF_01964, ECO:0000256|RuleBase:RU003928};
GN Name=guaB {ECO:0000256|HAMAP-Rule:MF_01964,
GN ECO:0000313|EMBL:EFH93140.1};
GN ORFNames=HMPREF0391_10798 {ECO:0000313|EMBL:EFH93140.1};
OS Finegoldia magna ATCC 53516.
OC Bacteria; Bacillota; Tissierellia; Tissierellales; Peptoniphilaceae;
OC Finegoldia.
OX NCBI_TaxID=525282 {ECO:0000313|EMBL:EFH93140.1};
RN [1] {ECO:0000313|EMBL:EFH93140.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 53516 {ECO:0000313|EMBL:EFH93140.1};
RA Muzny D., Qin X., Buhay C., Dugan-Rocha S., Ding Y., Chen G., Hawes A.,
RA Holder M., Jhangiani S., Johnson A., Khan Z., Li Z., Liu W., Liu X.,
RA Perez L., Shen H., Wang Q., Watt J., Xi L., Xin Y., Zhou J., Deng J.,
RA Jiang H., Liu Y., Qu J., Song X.-Z., Zhang L., Villasana D., Johnson A.,
RA Liu J., Liyanage D., Lorensuhewa L., Robinson T., Song A., Song B.-B.,
RA Dinh H., Thornton R., Coyle M., Francisco L., Jackson L., Javaid M.,
RA Korchina V., Kovar C., Mata R., Mathew T., Ngo R., Nguyen L., Nguyen N.,
RA Okwuonu G., Ongeri F., Pham C., Simmons D., Wilczek-Boney K., Hale W.,
RA Jakkamsetti A., Pham P., Ruth R., San Lucas F., Warren J., Zhang J.,
RA Zhao Z., Zhou C., Zhu D., Lee S., Bess C., Blankenburg K., Forbes L.,
RA Fu Q., Gubbala S., Hirani K., Jayaseelan J.C., Lara F., Munidasa M.,
RA Palculict T., Patil S., Pu L.-L., Saada N., Tang L., Weissenberger G.,
RA Zhu Y., Hemphill L., Shang Y., Youmans B., Ayvaz T., Ross M.,
RA Santibanez J., Aqrawi P., Gross S., Joshi V., Fowler G., Nazareth L.,
RA Reid J., Worley K., Petrosino J., Highlander S., Gibbs R.;
RL Submitted (MAY-2010) 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_01964}.
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_01964, 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_01964};
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_01964}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via de novo pathway; XMP
CC from IMP: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01964,
CC ECO:0000256|RuleBase:RU003928}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01964}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family.
CC {ECO:0000256|ARBA:ARBA00005502, ECO:0000256|HAMAP-Rule:MF_01964,
CC ECO:0000256|RuleBase:RU003927}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01964}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EFH93140.1}.
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DR EMBL; ACHM02000002; EFH93140.1; -; Genomic_DNA.
DR RefSeq; WP_002835596.1; NZ_CM000955.1.
DR AlphaFoldDB; D6S8L2; -.
DR STRING; 525282.HMPREF0391_10798; -.
DR eggNOG; COG0516; Bacteria.
DR eggNOG; COG0517; Bacteria.
DR HOGENOM; CLU_022552_1_1_9; -.
DR OrthoDB; 9805398at2; -.
DR UniPathway; UPA00601; UER00295.
DR Proteomes; UP000004063; Chromosome.
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};
KW GMP biosynthesis {ECO:0000256|ARBA:ARBA00022749, ECO:0000256|HAMAP-
KW Rule:MF_01964};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01964};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01964};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01964,
KW ECO:0000256|RuleBase:RU003927};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_01964};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_01964}.
FT DOMAIN 92..148
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT DOMAIN 152..212
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT ACT_SITE 303
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT ACT_SITE 399
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT BINDING 246..248
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 246
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964"
FT BINDING 296..298
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 298
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_01964,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 300
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_01964,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 301
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-2"
FT BINDING 303
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_01964,
FT ECO:0000256|PIRSR:PIRSR000130-4"
FT BINDING 336..338
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-2"
FT BINDING 359..360
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-2"
FT BINDING 383..387
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-2"
FT BINDING 411
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-2"
FT BINDING 465
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_01964"
FT BINDING 467
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_01964"
SQ SEQUENCE 483 AA; 52207 MW; 1F0291F1BFC8828D CRC64;
MQFIGEGLTF DDVLLVPGPS EVLPNETILK TRLTKKIELN IPMMSAGMDT VTESKMAIAM
ARQGGIGIIH KNMTIEEQAR EVDRVKRSEN GIITDPFYLS ADDKIVDALK LMSHYRISGV
PIVNDDMTLV GILTNRDVRF VKDEQLPIGD VMTKDNLITG HENISMDEAL EKMMNAKIEK
LPIVDENFKL KGLITTKDVE KTIQYPNSAR DSQGRLLVGA AVGITNDMIE RCQALVDAKV
DVVTIDTAHG HSRGVLNAVR KLKESFPDLQ IIAGNVATAD ATRDLIEAGA DCVKVGIGPG
SICTTRVVTG IGVPQMTAII ECAKEADKHG IPIIADGGIK YSGDITKALA AGASVIMAGS
LFAGTEESPG ELVVLEGRQY KEYRGMGSLG AMKAGSGDRY FQNNTKKYVP EGVEGRVAYK
GSVAEVVYQL VGGLRSGMGY VGSKDLVELK EKSKFVKISP ATLVENHPHD ITITRESPNY
TKK
//
