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Q6WIT9

- HPRT_CANFA

UniProt

Q6WIT9 - HPRT_CANFA

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Protein

Hypoxanthine-guanine phosphoribosyltransferase

Gene

HPRT1

Organism
Canis familiaris (Dog) (Canis lupus familiaris)
Status
Reviewed - Annotation score: 5 out of 5- Experimental evidence at transcript leveli

Functioni

Converts guanine to guanosine monophosphate, and hypoxanthine to inosine monophosphate. Transfers the 5-phosphoribosyl group from 5-phosphoribosylpyrophosphate onto the purine. Plays a central role in the generation of purine nucleotides through the purine salvage pathway (By similarity).By similarity

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).By similarity

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei69 – 691GMPBy similarity
Active sitei138 – 1381Proton acceptorBy similarity
Binding sitei166 – 1661GMPBy similarity
Metal bindingi194 – 1941MagnesiumBy similarity
Binding sitei194 – 1941GMP; via carbonyl oxygenBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi134 – 1429GMPBy similarity
Nucleotide bindingi186 – 1883GMPBy similarity

GO - Molecular functioni

  1. guanine phosphoribosyltransferase activity Source: UniProtKB
  2. hypoxanthine phosphoribosyltransferase activity Source: UniProtKB
  3. magnesium ion binding Source: UniProtKB
  4. nucleotide binding Source: UniProtKB-KW
  5. protein homodimerization activity Source: UniProtKB

GO - Biological processi

  1. GMP catabolic process Source: UniProtKB
  2. guanine salvage Source: UniProtKB
  3. hypoxanthine metabolic process Source: UniProtKB
  4. hypoxanthine salvage Source: UniProtKB
  5. IMP metabolic process Source: UniProtKB
  6. IMP salvage Source: UniProtKB-UniPathway
  7. positive regulation of dopamine metabolic process Source: UniProtKB
  8. protein homotetramerization Source: UniProtKB
  9. purine nucleotide biosynthetic process Source: UniProtKB
  10. purine ribonucleoside salvage Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Purine salvage

Keywords - Ligandi

Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

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:HPRT1
Synonyms:HPRT
OrganismiCanis familiaris (Dog) (Canis lupus familiaris)
Taxonomic identifieri9615 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeCanis
ProteomesiUP000002254: Unplaced

Subcellular locationi

Cytoplasm By similarity

GO - Cellular componenti

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

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 218217Hypoxanthine-guanine phosphoribosyltransferasePRO_0000139583Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei2 – 21N-acetylalanineBy similarity
Modified residuei103 – 1031N6-acetyllysineBy similarity

Keywords - PTMi

Acetylation

Proteomic databases

PRIDEiQ6WIT9.

Interactioni

Subunit structurei

Homotetramer.By similarity

Structurei

3D structure databases

ProteinModelPortaliQ6WIT9.
SMRiQ6WIT9. Positions 5-218.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0634.
HOGENOMiHOG000236521.
HOVERGENiHBG000242.
InParanoidiQ6WIT9.
KOiK00760.

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.

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

Q6WIT9-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MATRSLGVVI SDDEPGYDLD LFCIPHHYAE DLEKVFIPHG LIMDRTERLA
60 70 80 90 100
RDVMKEMGGH HIVALCVLKG GYKFFADLLD YIKALNRNSD GSIPMTVDFI
110 120 130 140 150
RLKSYCNDQS TGDIKVIGGD DLSTLTGKNV LIVEDIIDTG KTMQTLLSLV
160 170 180 190 200
KEHNPKMVKV ASLLVKRTPR SVGYKPDFVG FEIPDKFVVG YALDYNEYFR
210
DLNHVCVISE TGKAKYKA
Length:218
Mass (Da):24,438
Last modified:January 23, 2007 - v3
Checksum:iE6F1CC8CC6FDF52F
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY283372 mRNA. Translation: AAQ21102.1.
RefSeqiNP_001003357.1. NM_001003357.1.
UniGeneiCfa.4551.

Genome annotation databases

GeneIDi442945.
KEGGicfa:442945.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY283372 mRNA. Translation: AAQ21102.1 .
RefSeqi NP_001003357.1. NM_001003357.1.
UniGenei Cfa.4551.

3D structure databases

ProteinModelPortali Q6WIT9.
SMRi Q6WIT9. Positions 5-218.
ModBasei Search...
MobiDBi Search...

Proteomic databases

PRIDEi Q6WIT9.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 442945.
KEGGi cfa:442945.

Organism-specific databases

CTDi 3251.

Phylogenomic databases

eggNOGi COG0634.
HOGENOMi HOG000236521.
HOVERGENi HBG000242.
InParanoidi Q6WIT9.
KOi K00760.

Enzyme and pathway databases

UniPathwayi UPA00591 ; UER00648 .

Miscellaneous databases

NextBioi 20831615.

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

  1. "Selection of HPRT primers as controls for determination of mRNA expression in dogs by RT-PCR."
    Johnson C.M., Yang S., Sellins K.S., Frank G.R.
    Vet. Immunol. Immunopathol. 99:47-51(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Entry informationi

Entry nameiHPRT_CANFA
AccessioniPrimary (citable) accession number: Q6WIT9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 12, 2005
Last sequence update: January 23, 2007
Last modified: October 1, 2014
This is version 69 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata 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