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B1IQN5 (GUAC_ECOLC) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 38. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
GMP reductase

EC=1.7.1.7
Alternative name(s):
Guanosine 5'-monophosphate oxidoreductase
Short name=Guanosine monophosphate reductase
Gene names
Name:guaC
Ordered Locus Names:EcolC_3554
OrganismEscherichia coli (strain ATCC 8739 / DSM 1576 / Crooks) [Complete proteome] [HAMAP]
Taxonomic identifier481805 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia

Protein attributes

Sequence length347 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Catalyzes the irreversible NADPH-dependent deamination of GMP to IMP. It functions in the conversion of nucleobase, nucleoside and nucleotide derivatives of G to A nucleotides, and in maintaining the intracellular balance of A and G nucleotides By similarity. HAMAP-Rule MF_00596

Catalytic activity

Inosine 5'-phosphate + NH3 + NADP+ = guanosine 5'-phosphate + NADPH. HAMAP-Rule MF_00596

Subunit structure

Homotetramer By similarity. HAMAP-Rule MF_00596

Sequence similarities

Belongs to the IMPDH/GMPR family. GuaC type 1 subfamily.

Ontologies

Keywords
   LigandMetal-binding
NADP
Potassium
   Molecular functionOxidoreductase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processpurine nucleotide metabolic process

Inferred from electronic annotation. Source: UniProtKB-HAMAP

   Cellular_componentGMP reductase complex

Inferred from electronic annotation. Source: UniProtKB-EC

   Molecular_functionGMP reductase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

metal ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 347347GMP reductase HAMAP-Rule MF_00596
PRO_1000082438

Regions

Nucleotide binding108 – 13124NADP By similarity
Nucleotide binding216 – 23924NADP; ribose moiety By similarity

Sites

Active site1861Thioimidate intermediate By similarity
Metal binding1811Potassium; via carbonyl oxygen By similarity
Metal binding1831Potassium; via carbonyl oxygen By similarity

Sequences

Sequence LengthMass (Da)Tools
B1IQN5 [UniParc].

Last modified April 29, 2008. Version 1.
Checksum: 898F50DA7FD00441

FASTA34737,384
        10         20         30         40         50         60 
MRIEEDLKLG FKDVLIRPKR STLKSRSDVE LERQFTFKHS GQSWSGVPII AANMDTVGTF 

        70         80         90        100        110        120 
SMASALASFD ILTAVHKHYS VEEWQAFINN SSADVLKHVM VSTGTSDADF EKTKQILDLN 

       130        140        150        160        170        180 
PALNFVCIDV ANGYSEHFVQ FVAKAREAWP TKTICAGNVV TGEMCEELIL SGADIVKVGI 

       190        200        210        220        230        240 
GPGSVCTTRV KTGVGYPQLS AVIECADAAH GLGGMIVSDG GCTTPGDVAK AFGGGADFVM 

       250        260        270        280        290        300 
LGGMLAGHEE SGGRIVEENG EKFMLFYGMS SESAMKRHVG GVAEYRAAEG KTVKLPLRGP 

       310        320        330        340 
VENTARDILG GLRSACTYVG ASRLKELTKR TTFIRVQEQE NRIFNNL 

« Hide

References

[1]"Complete sequence of Escherichia coli C str. ATCC 8739."
Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H., Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L. expand/collapse author list , Kyrpides N., Mikhailova N., Ingram L., Richardson P.
Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 8739 / DSM 1576 / Crooks.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000946 Genomic DNA. Translation: ACA79168.1.
RefSeqYP_001726495.1. NC_010468.1.

3D structure databases

ProteinModelPortalB1IQN5.
SMRB1IQN5. Positions 9-336.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING481805.EcolC_3554.

Proteomic databases

PRIDEB1IQN5.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaACA79168; ACA79168; EcolC_3554.
GeneID6065967.
KEGGecl:EcolC_3554.
PATRIC18230206. VBIEscCol82905_3797.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0516.
HOGENOMHOG000165756.
KOK00364.
OMACSCAGDV.
OrthoDBEOG6GTZPV.
ProtClustDBPRK05096.

Enzyme and pathway databases

BioCycECOL481805:GI3G-3636-MONOMER.

Family and domain databases

Gene3D3.20.20.70. 1 hit.
HAMAPMF_00596. GMP_reduct_type1.
InterProIPR013785. Aldolase_TIM.
IPR005993. GMP_reduct1.
IPR015875. IMP_DH/GMP_Rdtase_CS.
IPR001093. IMP_DH_GMPRt.
[Graphical view]
PfamPF00478. IMPDH. 1 hit.
[Graphical view]
PIRSFPIRSF000235. GMP_reductase. 1 hit.
TIGRFAMsTIGR01305. GMP_reduct_1. 1 hit.
PROSITEPS00487. IMP_DH_GMP_RED. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameGUAC_ECOLC
AccessionPrimary (citable) accession number: B1IQN5
Entry history
Integrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: April 29, 2008
Last modified: February 19, 2014
This is version 38 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families