ID A0A0P0GPF7_9BACE Unreviewed; 491 AA.
AC A0A0P0GPF7;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 24-JAN-2024, entry version 45.
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:ALJ59146.1};
GN ORFNames=BcellWH2_01895 {ECO:0000313|EMBL:ALJ59146.1}, DWW88_18350
GN {ECO:0000313|EMBL:RGU23833.1}, DWX97_03180
GN {ECO:0000313|EMBL:RGS38967.1}, F2Y70_00640
GN {ECO:0000313|EMBL:KAA5428453.1}, F2Y81_00120
GN {ECO:0000313|EMBL:KAA5423590.1}, F2Y86_13360
GN {ECO:0000313|EMBL:KAA5408777.1}, F2Y87_27530
GN {ECO:0000313|EMBL:KAA5412593.1};
OS Bacteroides cellulosilyticus.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC Bacteroides.
OX NCBI_TaxID=246787 {ECO:0000313|EMBL:ALJ59146.1, ECO:0000313|Proteomes:UP000061809};
RN [1] {ECO:0000313|EMBL:ALJ59146.1, ECO:0000313|Proteomes:UP000061809}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WH2 {ECO:0000313|EMBL:ALJ59146.1,
RC ECO:0000313|Proteomes:UP000061809};
RX PubMed=26430127;
RA Wu M., McNulty N.P., Rodionov D.A., Khoroshkin M.S., Griffin N.W.,
RA Cheng J., Latreille P., Kerstetter R.A., Terrapon N., Henrissat B.,
RA Osterman A.L., Gordon J.I.;
RT "Genetic determinants of in vivo fitness and diet responsiveness in
RT multiple human gut Bacteroides.";
RL Science 350:AAC5992-AAC5992(2015).
RN [2] {ECO:0000313|Proteomes:UP000283341, ECO:0000313|Proteomes:UP000285677}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AF17-25 {ECO:0000313|EMBL:RGU23833.1,
RC ECO:0000313|Proteomes:UP000285677}, and AF22-3AC
RC {ECO:0000313|EMBL:RGS38967.1, ECO:0000313|Proteomes:UP000283341};
RA Zou Y., Xue W., Luo G.;
RT "A genome reference for cultivated species of the human gut microbiota.";
RL Submitted (AUG-2018) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|Proteomes:UP000325055, ECO:0000313|Proteomes:UP000448877}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BIOML-A3 {ECO:0000313|EMBL:KAA5428453.1,
RC ECO:0000313|Proteomes:UP000475645}, BIOML-A6
RC {ECO:0000313|EMBL:KAA5423590.1, ECO:0000313|Proteomes:UP000448877},
RC BIOML-A7 {ECO:0000313|EMBL:KAA5408777.1,
RC ECO:0000313|Proteomes:UP000325055}, and BIOML-A8
RC {ECO:0000313|EMBL:KAA5412593.1, ECO:0000313|Proteomes:UP000482653};
RX PubMed=31477907; DOI=.1038/s41591-019-0559-3;
RA Poyet M., Groussin M., Gibbons S.M., Avila-Pacheco J., Jiang X.,
RA Kearney S.M., Perrotta A.R., Berdy B., Zhao S., Lieberman T.D.,
RA Swanson P.K., Smith M., Roesemann S., Alexander J.E., Rich S.A., Livny J.,
RA Vlamakis H., Clish C., Bullock K., Deik A., Scott J., Pierce K.A.,
RA Xavier R.J., Alm E.J.;
RT "A library of human gut bacterial isolates paired with longitudinal
RT multiomics data enables mechanistic microbiome research.";
RL Nat. Med. 25:1442-1452(2019).
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}.
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DR EMBL; CP012801; ALJ59146.1; -; Genomic_DNA.
DR EMBL; VVYW01000009; KAA5408777.1; -; Genomic_DNA.
DR EMBL; VVYX01000063; KAA5412593.1; -; Genomic_DNA.
DR EMBL; VVYV01000001; KAA5423590.1; -; Genomic_DNA.
DR EMBL; VVYT01000001; KAA5428453.1; -; Genomic_DNA.
DR EMBL; QRVJ01000002; RGS38967.1; -; Genomic_DNA.
DR EMBL; QRXS01000012; RGU23833.1; -; Genomic_DNA.
DR RefSeq; WP_007218717.1; NZ_VVYX01000063.1.
DR AlphaFoldDB; A0A0P0GPF7; -.
DR STRING; 246787.BcellWH2_01895; -.
DR GeneID; 66306673; -.
DR KEGG; bcel:BcellWH2_01895; -.
DR PATRIC; fig|246787.4.peg.1955; -.
DR eggNOG; COG0516; Bacteria.
DR eggNOG; COG0517; Bacteria.
DR UniPathway; UPA00601; UER00295.
DR Proteomes; UP000061809; Chromosome.
DR Proteomes; UP000283341; Unassembled WGS sequence.
DR Proteomes; UP000285677; Unassembled WGS sequence.
DR Proteomes; UP000325055; Unassembled WGS sequence.
DR Proteomes; UP000448877; Unassembled WGS sequence.
DR Proteomes; UP000475645; Unassembled WGS sequence.
DR Proteomes; UP000482653; Unassembled WGS sequence.
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 97..155
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT DOMAIN 157..217
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT ACT_SITE 308
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT ACT_SITE 404
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964,
FT ECO:0000256|PIRSR:PIRSR000130-1"
FT BINDING 251..253
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000130-3"
FT BINDING 251
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01964"
FT BINDING 301..303
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 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 305
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 306
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 308
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 341..343
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 364..365
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 388..392
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 419
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 472
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 473
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 474
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 491 AA; 52528 MW; 952125ACDAF7B88B CRC64;
MSFIADKIVM DGLTYDDVLL IPAYSEVLPK TVELSTKFSK NIELKIPFVT AAMDTVTEAK
MAIAIAREGG IGVIHKNMSI EEQARQVAIV KRAENGMIYD PVTIKRGSTV GDALALMAEY
RIGGIPVVDD ERYLVGIVTN RDLRFVRDMN KHIDEVMTKE NIITTNPTTD MEAVSQILQE
HRIEKLPVVD KEGKLVGLIT YKDITKAKDK PMACKDSKGR LRVAAGVGVT ADTLDRMQAL
VDAGADAIVI DTAHGHSIYV IEKLKEAKKR FPNIDIVVGN IATGEAAKAL VEAGADGVKV
GIGPGSICTT RVVAGVGVPQ LSAVYDVAKA LKGTGVPLIA DGGLRYSGDV VKALAAGGYS
VMIGSLVAGT EESPGDTIIF NGRKFKSYRG MGSLEAMENG SKDRYFQSGT NDVKKLVPEG
IAARVPYKGT LYEVIFQLVG GLRAGMGYCG AGSIEQLHDA KFTRITNAGV LESHPHDVAI
TSEAPNYSRP E
//
