(data stored in SCRATCH zone)

SWISSPROT: C6B2G3_RHILS

ID   C6B2G3_RHILS            Unreviewed;       494 AA.
AC   C6B2G3;
DT   01-SEP-2009, integrated into UniProtKB/TrEMBL.
DT   01-SEP-2009, sequence version 1.
DT   07-JUN-2017, 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   OrderedLocusNames=Rleg_0477 {ECO:0000313|EMBL:ACS54783.1};
OS   Rhizobium leguminosarum bv. trifolii (strain WSM1325).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=395491 {ECO:0000313|EMBL:ACS54783.1, ECO:0000313|Proteomes:UP000002256};
RN   [1] {ECO:0000313|EMBL:ACS54783.1, ECO:0000313|Proteomes:UP000002256}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WSM1325 {ECO:0000313|EMBL:ACS54783.1,
RC   ECO:0000313|Proteomes:UP000002256};
RX   PubMed=21304718;
RA   Reeve W., O'Hara G., Chain P., Ardley J., Brau L., Nandesena K.,
RA   Tiwari R., Copeland A., Nolan M., Han C., Brettin T., Land M.,
RA   Ovchinikova G., Ivanova N., Mavromatis K., Markowitz V., Kyrpides N.,
RA   Melino V., Denton M., Yates R., Howieson J.;
RT   "Complete genome sequence of Rhizobium leguminosarum bv. trifolii
RT   strain WSM1325, an effective microsymbiont of annual Mediterranean
RT   clovers.";
RL   Stand. Genomic Sci. 2:347-356(2010).
CC   -!- FUNCTION: Catalyzes the conversion of inosine 5'-phosphate (IMP)
CC       to xanthosine 5'-phosphate (XMP), the first committed and rate-
CC       limiting step in the de novo synthesis of guanine nucleotides, and
CC       therefore plays an important role in the regulation of cell
CC       growth. {ECO:0000256|HAMAP-Rule:MF_01964}.
CC   -!- CATALYTIC ACTIVITY: Inosine 5'-phosphate + NAD(+) + H(2)O =
CC       xanthosine 5'-phosphate + NADH. {ECO:0000256|HAMAP-Rule:MF_01964,
CC       ECO:0000256|RuleBase:RU003928}.
CC   -!- COFACTOR:
CC       Name=K(+); Xref=ChEBI:CHEBI:29103; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_01964};
CC   -!- ENZYME REGULATION: Mycophenolic acid (MPA) is a non-competitive
CC       inhibitor that prevents formation of the closed enzyme
CC       conformation by binding to the same site as the amobile flap. In
CC       contrast, mizoribine monophosphate (MZP) is a competitive
CC       inhibitor that induces the closed conformation. MPA is a potent
CC       inhibitor of mammalian IMPDHs but a poor inhibitor of the
CC       bacterial enzymes. MZP is a more potent inhibitor of bacterial
CC       IMPDH. {ECO:0000256|HAMAP-Rule:MF_01964}.
CC   -!- PATHWAY: Purine metabolism; XMP biosynthesis via de novo pathway;
CC       XMP 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. {ECO:0000256|HAMAP-
CC       Rule:MF_01964, ECO:0000256|RuleBase:RU003927}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation
CC       of feature annotation. {ECO:0000256|HAMAP-Rule:MF_01964}.
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DR   EMBL; CP001622; ACS54783.1; -; Genomic_DNA.
DR   RefSeq; WP_012756170.1; NC_012850.1.
DR   ProteinModelPortal; C6B2G3; -.
DR   EnsemblBacteria; ACS54783; ACS54783; Rleg_0477.
DR   KEGG; rlg:Rleg_0477; -.
DR   HOGENOM; HOG000165755; -.
DR   KO; K00088; -.
DR   OMA; GIGIVHK; -.
DR   OrthoDB; POG091H02IM; -.
DR   UniPathway; UPA00601; UER00295.
DR   Proteomes; UP000002256; Chromosome.
DR   GO; GO:0003938; F:IMP dehydrogenase activity; IEA:UniProtKB-HAMAP.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-HAMAP.
DR   GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-HAMAP.
DR   GO; GO:0006177; P:GMP biosynthetic process; IEA:UniProtKB-HAMAP.
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   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   3: Inferred from homology;
DR   PRODOM; C6B2G3.
DR   SWISS-2DPAGE; C6B2G3.
KW   CBS domain {ECO:0000256|PROSITE-ProRule:PRU00703};
KW   Complete proteome {ECO:0000313|Proteomes:UP000002256};
KW   GMP biosynthesis {ECO:0000256|HAMAP-Rule:MF_01964,
KW   ECO:0000256|RuleBase:RU003928};
KW   Metal-binding {ECO:0000256|HAMAP-Rule:MF_01964,
KW   ECO:0000256|RuleBase:RU003928};
KW   NAD {ECO:0000256|HAMAP-Rule:MF_01964, ECO:0000256|PIRSR:PIRSR000130-3,
KW   ECO:0000256|RuleBase:RU003928};
KW   Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01964,
KW   ECO:0000256|RuleBase:RU003927, ECO:0000313|EMBL:ACS54783.1};
KW   Potassium {ECO:0000256|HAMAP-Rule:MF_01964,
KW   ECO:0000256|PIRSR:PIRSR000130-4, ECO:0000256|RuleBase:RU003928};
KW   Purine biosynthesis {ECO:0000256|HAMAP-Rule:MF_01964,
KW   ECO:0000256|RuleBase:RU003928}.
FT   DOMAIN       98    154       CBS. {ECO:0000259|PROSITE:PS51371}.
FT   DOMAIN      158    215       CBS. {ECO:0000259|PROSITE:PS51371}.
FT   NP_BIND     252    254       NAD. {ECO:0000256|PIRSR:PIRSR000130-3}.
FT   NP_BIND     302    304       NAD. {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-3}.
FT   REGION      342    344       IMP binding. {ECO:0000256|HAMAP-Rule:
FT                                MF_01964, ECO:0000256|PIRSR:PIRSR000130-
FT                                2}.
FT   REGION      365    366       IMP binding. {ECO:0000256|HAMAP-Rule:
FT                                MF_01964, ECO:0000256|PIRSR:PIRSR000130-
FT                                2}.
FT   REGION      389    393       IMP binding. {ECO:0000256|HAMAP-Rule:
FT                                MF_01964, ECO:0000256|PIRSR:PIRSR000130-
FT                                2}.
FT   ACT_SITE    309    309       Thioimidate intermediate.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-1}.
FT   ACT_SITE    405    405       Proton acceptor. {ECO:0000256|HAMAP-Rule:
FT                                MF_01964, ECO:0000256|PIRSR:PIRSR000130-
FT                                1}.
FT   METAL       304    304       Potassium; via carbonyl oxygen.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-4}.
FT   METAL       306    306       Potassium; via carbonyl oxygen.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-4}.
FT   METAL       309    309       Potassium; via carbonyl oxygen.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-4}.
FT   METAL       474    474       Potassium; via carbonyl oxygen; shared
FT                                with tetrameric partner.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964}.
FT   METAL       475    475       Potassium; via carbonyl oxygen; shared
FT                                with tetrameric partner.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964}.
FT   METAL       476    476       Potassium; via carbonyl oxygen; shared
FT                                with tetrameric partner.
FT                                {ECO:0000256|HAMAP-Rule:MF_01964}.
FT   BINDING     252    252       NAD. {ECO:0000256|HAMAP-Rule:MF_01964}.
FT   BINDING     307    307       IMP. {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-2}.
FT   BINDING     420    420       IMP. {ECO:0000256|HAMAP-Rule:MF_01964,
FT                                ECO:0000256|PIRSR:PIRSR000130-2}.
SQ   SEQUENCE   494 AA;  52249 MW;  017E9595E6542417 CRC64;
     MARIIETATG ADALTFDDVL LQPGHSEVMP GQTNISTRIA RDFELNIPII SSAMDTVTES
     RLAIAMAQAG GLGVIHRNLT PIEQAEQVRQ VKKFESGMVV NPVTIGPDET LADALGLMKS
     YSISGIPVVE KSGRLVGILT NRDVRFATDQ EQKIHELMTK DKLVTVKENV DQQEAKRLLH
     SHRIEKLLVV DTEGRCVGLI TVKDIEKSQL NPNASKDAQG RLRAAAAISV GDDGFERAER
     LIEAGVDLLV VDTAHGHSQR VLDAVSRVKK LSNSVRIMAG NVATYDGTRA LIDAGADAVK
     VGIGPGSICT TRIVAGVGVP QLAAIMSAVQ AANDQDVPVI ADGGIKFSGD LAKAIAAGAS
     AVMIGSLLAG TDESPGEVYL YQGRSFKAYR GMGSVGAMAR GSADRYFQAE VRDTLKLVPE
     GIEGQVPYKG PVSGVIHQLA GGLKAAMGYV GGKDLKDFQE RATFVRISGA GLRESHAHDV
     TITRESPNYP GAGL
//

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