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Q02522

- HPRT_LACLA

UniProt

Q02522 - HPRT_LACLA

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Protein
Hypoxanthine-guanine phosphoribosyltransferase
Gene
hpt, LL0020, L25115
Organism
Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Catalytic activityi

IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate.
GMP + diphosphate = guanine + 5-phospho-alpha-D-ribose 1-diphosphate.

Cofactori

Binds 2 magnesium ions per subunit. The magnesium ions are essentially bound to the substrate and have few direct interactions with the protein By similarity.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei107 – 1071Proton acceptor By similarity
Binding sitei134 – 1341IMP By similarity
Binding sitei156 – 1561IMP; via carbonyl oxygen By similarity
Metal bindingi162 – 1621Magnesium By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi103 – 11210IMP By similarity
Nucleotide bindingi161 – 1622IMP By similarity

GO - Molecular functioni

  1. guanine phosphoribosyltransferase activity Source: UniProtKB-EC
  2. hypoxanthine phosphoribosyltransferase activity Source: UniProtKB-EC
  3. metal ion binding Source: UniProtKB-KW
  4. nucleotide binding Source: UniProtKB-KW
Complete GO annotation...

GO - Biological processi

  1. IMP salvage Source: UniProtKB-UniPathway
  2. purine ribonucleoside salvage Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Purine salvage

Keywords - Ligandi

Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciLLAC272623:GHSH-21-MONOMER.
UniPathwayiUPA00591; UER00648.

Names & Taxonomyi

Protein namesi
Recommended name:
Hypoxanthine-guanine phosphoribosyltransferase (EC:2.4.2.8)
Short name:
HGPRT
Short name:
HGPRTase
Gene namesi
Name:hpt
Ordered Locus Names:LL0020
ORF Names:L25115
OrganismiLactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis)
Taxonomic identifieri272623 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeLactococcus
ProteomesiUP000002196: Chromosome

Subcellular locationi

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 183183Hypoxanthine-guanine phosphoribosyltransferase
PRO_0000139604Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi272623.L25115.

Structurei

3D structure databases

ProteinModelPortaliQ02522.

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0634.
HOGENOMiHOG000236520.
KOiK00760.
OMAiEEDIAGK.
OrthoDBiEOG693GNP.

Family and domain databases

Gene3Di3.40.50.2020. 1 hit.
InterProiIPR005904. Hxn_phspho_trans.
IPR000836. PRibTrfase_dom.
IPR029057. PRTase-like.
[Graphical view]
PfamiPF00156. Pribosyltran. 1 hit.
[Graphical view]
SUPFAMiSSF53271. SSF53271. 1 hit.
TIGRFAMsiTIGR01203. HGPRTase. 1 hit.
PROSITEiPS00103. PUR_PYR_PR_TRANSFER. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q02522-1 [UniParc]FASTAAdd to Basket

« Hide

MLEKNLDKAI EKVLVSEEEI IEKSKELGEI LTKEYEGKNP LVLGILRGSV    50
PFLAELIKHI DCHLETDFMT VSSYHGGTKS SGEVKLILDV DTAVKGRDIL 100
IVEDIIDTGR TLKYLKELLE HRGANVKIVT LLDKPEGRIV EIKPDYSGFT 150
IPNEFVVGFG LDYEENYRNL PYVGVLKPEV YNK 183
Length:183
Mass (Da):20,648
Last modified:July 1, 1993 - v1
Checksum:iA9D903FC9E6EBDB7
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X67015 Genomic DNA. Translation: CAA47404.1.
X69123 Genomic DNA. Translation: CAA48876.1.
AE005176 Genomic DNA. Translation: AAK04118.1.
PIRiD86627.
S30100.
RefSeqiNP_266176.1. NC_002662.1.
WP_010905038.1. NC_002662.1.

Genome annotation databases

EnsemblBacteriaiAAK04118; AAK04118; L25115.
GeneIDi1113619.
KEGGilla:L25115.
PATRICi22292150. VBILacLac136773_0022.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X67015 Genomic DNA. Translation: CAA47404.1 .
X69123 Genomic DNA. Translation: CAA48876.1 .
AE005176 Genomic DNA. Translation: AAK04118.1 .
PIRi D86627.
S30100.
RefSeqi NP_266176.1. NC_002662.1.
WP_010905038.1. NC_002662.1.

3D structure databases

ProteinModelPortali Q02522.
ModBasei Search...

Protein-protein interaction databases

STRINGi 272623.L25115.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAK04118 ; AAK04118 ; L25115 .
GeneIDi 1113619.
KEGGi lla:L25115.
PATRICi 22292150. VBILacLac136773_0022.

Phylogenomic databases

eggNOGi COG0634.
HOGENOMi HOG000236520.
KOi K00760.
OMAi EEDIAGK.
OrthoDBi EOG693GNP.

Enzyme and pathway databases

UniPathwayi UPA00591 ; UER00648 .
BioCyci LLAC272623:GHSH-21-MONOMER.

Family and domain databases

Gene3Di 3.40.50.2020. 1 hit.
InterProi IPR005904. Hxn_phspho_trans.
IPR000836. PRibTrfase_dom.
IPR029057. PRTase-like.
[Graphical view ]
Pfami PF00156. Pribosyltran. 1 hit.
[Graphical view ]
SUPFAMi SSF53271. SSF53271. 1 hit.
TIGRFAMsi TIGR01203. HGPRTase. 1 hit.
PROSITEi PS00103. PUR_PYR_PR_TRANSFER. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "Isolation of purine auxotrophic mutants of Lactococcus lactis and characterization of the gene hpt encoding hypoxanthine guanine phosphoribosyltransferase."
    Nilsson D., Lauridsen A.A.
    Mol. Gen. Genet. 235:359-364(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: CHCC285.
  2. "The complete genome sequence of the lactic acid bacterium Lactococcus lactis ssp. lactis IL1403."
    Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J., Ehrlich S.D., Sorokin A.
    Genome Res. 11:731-753(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: IL1403.

Entry informationi

Entry nameiHPRT_LACLA
AccessioniPrimary (citable) accession number: Q02522
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: September 3, 2014
This is version 99 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

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

External Data

Dasty 3

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