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Q5X9A3

- IMDH_STRP6

UniProt

Q5X9A3 - IMDH_STRP6

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Protein

Inosine-5'-monophosphate dehydrogenase

Gene

guaB

Organism
Streptococcus pyogenes serotype M6 (strain ATCC BAA-946 / MGAS10394)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli

Functioni

Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth.UniRule annotation

Catalytic activityi

Inosine 5'-phosphate + NAD+ + H2O = xanthosine 5'-phosphate + NADH.UniRule annotation

Cofactori

Potassium.UniRule annotation

Enzyme regulationi

Mycophenolic acid (MPA) is a non-competitive inhibitor that prevents formation of the closed enzyme conformation by binding to the same site as the amobile flap. In contrast, mizoribine monophosphate (MZP) is a competitive inhibitor that induces the closed conformation. MPA is a potent inhibitor of mammalian IMPDHs but a poor inhibitor of the bacterial enzymes. MZP is a more potent inhibitor of bacterial IMPDH.UniRule annotation

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei253 – 2531NADUniRule annotation
Metal bindingi305 – 3051Potassium; via carbonyl oxygenUniRule annotation
Metal bindingi307 – 3071Potassium; via carbonyl oxygenUniRule annotation
Binding sitei308 – 3081IMPUniRule annotation
Active sitei310 – 3101Thioimidate intermediateUniRule annotation
Metal bindingi310 – 3101Potassium; via carbonyl oxygenUniRule annotation
Binding sitei421 – 4211IMPUniRule annotation
Metal bindingi475 – 4751Potassium; via carbonyl oxygen; shared with tetrameric partnerUniRule annotation
Metal bindingi476 – 4761Potassium; via carbonyl oxygen; shared with tetrameric partnerUniRule annotation
Metal bindingi477 – 4771Potassium; via carbonyl oxygen; shared with tetrameric partnerUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi303 – 3053NADUniRule annotation

GO - Molecular functioni

  1. adenyl nucleotide binding Source: InterPro
  2. IMP dehydrogenase activity Source: UniProtKB-HAMAP
  3. metal ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. GMP biosynthetic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

GMP biosynthesis, Purine biosynthesis

Keywords - Ligandi

Metal-binding, NAD, Potassium

Enzyme and pathway databases

BioCyciSPYO286636:GHNO-1957-MONOMER.
UniPathwayiUPA00601; UER00295.

Names & Taxonomyi

Protein namesi
Recommended name:
Inosine-5'-monophosphate dehydrogenaseUniRule annotation (EC:1.1.1.205UniRule annotation)
Short name:
IMP dehydrogenaseUniRule annotation
Short name:
IMPDUniRule annotation
Short name:
IMPDHUniRule annotation
Gene namesi
Name:guaBUniRule annotation
Ordered Locus Names:M6_Spy1875
OrganismiStreptococcus pyogenes serotype M6 (strain ATCC BAA-946 / MGAS10394)
Taxonomic identifieri286636 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
ProteomesiUP000001167: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11Removed1 Publication
Chaini2 – 493492Inosine-5'-monophosphate dehydrogenasePRO_0000093717Add
BLAST

Proteomic databases

PRIDEiQ5X9A3.

Interactioni

Subunit structurei

Homotetramer.UniRule annotation

Protein-protein interaction databases

STRINGi286636.M6_Spy1875.

Structurei

3D structure databases

ProteinModelPortaliQ5X9A3.
SMRiQ5X9A3. Positions 2-491.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini97 – 15559CBS 1UniRule annotationAdd
BLAST
Domaini159 – 21961CBS 2UniRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni343 – 3453IMP bindingUniRule annotation
Regioni366 – 3672IMP bindingUniRule annotation
Regioni390 – 3945IMP bindingUniRule annotation

Sequence similaritiesi

Belongs to the IMPDH/GMPR family.UniRule annotation
Contains 2 CBS domains.UniRule annotation

Keywords - Domaini

CBS domain, Repeat

Phylogenomic databases

eggNOGiCOG0517.
HOGENOMiHOG000165755.
KOiK00088.
OMAiHAAKDEH.
OrthoDBiEOG6GTZPV.

Family and domain databases

Gene3Di3.20.20.70. 1 hit.
HAMAPiMF_01964. IMPDH.
InterProiIPR013785. Aldolase_TIM.
IPR000644. CBS_dom.
IPR005990. IMP_DH.
IPR015875. IMP_DH/GMP_Rdtase_CS.
IPR001093. IMP_DH_GMPRt.
[Graphical view]
PANTHERiPTHR11911:SF6. PTHR11911:SF6. 1 hit.
PfamiPF00571. CBS. 2 hits.
PF00478. IMPDH. 1 hit.
[Graphical view]
PIRSFiPIRSF000130. IMPDH. 1 hit.
SMARTiSM00116. CBS. 2 hits.
[Graphical view]
TIGRFAMsiTIGR01302. IMP_dehydrog. 1 hit.
PROSITEiPS51371. CBS. 2 hits.
PS00487. IMP_DH_GMP_RED. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q5X9A3-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MSNWDTKFLK KGYTFDDVLL IPAESHVLPN EVDLKTKLAD NLTLNIPIIT
60 70 80 90 100
AAMDTVTGSK MAIAIARAGG LGVIHKNMSI TEQAEEVRKV KRSENGVIID
110 120 130 140 150
PFFLTPEHKV SEAEELMQRY RISGVPIVET LANRKLVGII TNRDMRFISD
160 170 180 190 200
YNAPISEHMT SEHLVTAAVG TDLETAERIL HEHRIEKLPL VDNSGRLSGL
210 220 230 240 250
ITIKDIEKVI EFPHAAKDEF GRLLVAAAVG VTSDTFERAE ALFEAGADAI
260 270 280 290 300
VIDTAHGHSA GVLRKIAEIR AHFPNRTLIA GNIATAEGAR ALYDAGVDVV
310 320 330 340 350
KVGIGPGSIC TTRVVAGVGV PQVTAIYDAA AVAREYGKTI IADGGIKYSG
360 370 380 390 400
DIVKALAAGG NAVMLGSMFA GTDEAPGETE IYQGRKFKTY RGMGSIAAMK
410 420 430 440 450
KGSSDRYFQG SVNEANKLVP EGIEGRVAYK GAASDIVFQM LGGIRSGMGY
460 470 480 490
VGAGDIQELH ENAQFVEMSG AGLIESHPHD VQITNEAPNY SVH
Length:493
Mass (Da):52,807
Last modified:January 23, 2007 - v3
Checksum:i9C317AD598CB5740
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000003 Genomic DNA. Translation: AAT88010.1.
RefSeqiYP_061193.1. NC_006086.1.

Genome annotation databases

EnsemblBacteriaiAAT88010; AAT88010; M6_Spy1875.
GeneIDi2941087.
KEGGispa:M6_Spy1875.
PATRICi19726057. VBIStrPyo30273_1950.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000003 Genomic DNA. Translation: AAT88010.1 .
RefSeqi YP_061193.1. NC_006086.1.

3D structure databases

ProteinModelPortali Q5X9A3.
SMRi Q5X9A3. Positions 2-491.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 286636.M6_Spy1875.

Chemistry

BindingDBi Q5X9A3.

Proteomic databases

PRIDEi Q5X9A3.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAT88010 ; AAT88010 ; M6_Spy1875 .
GeneIDi 2941087.
KEGGi spa:M6_Spy1875.
PATRICi 19726057. VBIStrPyo30273_1950.

Phylogenomic databases

eggNOGi COG0517.
HOGENOMi HOG000165755.
KOi K00088.
OMAi HAAKDEH.
OrthoDBi EOG6GTZPV.

Enzyme and pathway databases

UniPathwayi UPA00601 ; UER00295 .
BioCyci SPYO286636:GHNO-1957-MONOMER.

Family and domain databases

Gene3Di 3.20.20.70. 1 hit.
HAMAPi MF_01964. IMPDH.
InterProi IPR013785. Aldolase_TIM.
IPR000644. CBS_dom.
IPR005990. IMP_DH.
IPR015875. IMP_DH/GMP_Rdtase_CS.
IPR001093. IMP_DH_GMPRt.
[Graphical view ]
PANTHERi PTHR11911:SF6. PTHR11911:SF6. 1 hit.
Pfami PF00571. CBS. 2 hits.
PF00478. IMPDH. 1 hit.
[Graphical view ]
PIRSFi PIRSF000130. IMPDH. 1 hit.
SMARTi SM00116. CBS. 2 hits.
[Graphical view ]
TIGRFAMsi TIGR01302. IMP_dehydrog. 1 hit.
PROSITEi PS51371. CBS. 2 hits.
PS00487. IMP_DH_GMP_RED. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "Progress toward characterization of the group A Streptococcus metagenome: complete genome sequence of a macrolide-resistant serotype M6 strain."
    Banks D.J., Porcella S.F., Barbian K.D., Beres S.B., Philips L.E., Voyich J.M., DeLeo F.R., Martin J.M., Somerville G.A., Musser J.M.
    J. Infect. Dis. 190:727-738(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC BAA-946 / MGAS10394.
  2. "Two-dimensional gel electrophoresis map of Streptococcus pyogenes proteins."
    Hogan D.A., Du P., Stevenson T.I., Whitton M., Kilby G.W., Rogers J., VanBogelen R.A.
    Submitted (MAY-2000) to UniProtKB
    Cited for: PROTEIN SEQUENCE OF 2-35; 77-89; 110-119; 122-143; 185-264; 277-301; 407-426 AND 431-445.
    Strain: JRS4 / Serotype M6.

Entry informationi

Entry nameiIMDH_STRP6
AccessioniPrimary (citable) accession number: Q5X9A3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 21, 2004
Last sequence update: January 23, 2007
Last modified: October 1, 2014
This is version 79 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3