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Reviewed, UniProtKB/Swiss-Prot Q9UBR1 (BUP1_HUMAN)

Last modified June 16, 2009. Version 66. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (6) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Beta-ureidopropionase
    EC=3.5.1.6
Alternative name(s):
    Beta-alanine synthase
    N-carbamoyl-beta-alanine amidohydrolase
    BUP-1
Gene names
Name: UPB1
Synonyms: BUP1
OrganismHomo sapiens (Human)
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length384 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Converts N-carbamyl-beta-aminoisobutyric acid and N-carbamyl-beta-alanine to, respectively, beta-aminoisobutyric acid and beta-alanine, ammonia and carbon dioxide.

Catalytic activity

N-carbamoyl-beta-alanine + H2O = beta-alanine + CO2 + NH3.

Cofactor

Binds 1 zinc ion per subunit Probable.

Enzyme regulation

Allosteric enzyme with positive cooperativity toward the substrate N-carbamoyl-beta-alanine By similarity.

Pathway

Amino-acid biosynthesis; beta-alanine biosynthesis.

Subcellular location

Cytoplasm.

Involvement in disease

Defects in UPB1 are the cause of beta-ureidopropionase deficiency [MIM:606673]. It is characterized by muscular hypotonia, dystonic movements, scoliosis, microcephaly and severe developmental delay. Patients show strongly elevated levels of N-carbamyl-beta-alanine and N-carbamyl-beta-aminoisobutyric acid in plasma, cerebrospinal fluid and urine. Ref.4

Sequence similarities

Belongs to the CN hydrolase family. BUP subfamily.

Contains 1 CN hydrolase domain.

Ontologies

Keywords
   Cellular componentCytoplasm
   Coding sequence diversityPolymorphism
   DiseaseDisease mutation
   LigandMetal-binding
Zinc
   Molecular functionHydrolase
   Technical termAllosteric enzyme
Gene Ontology (GO)
   Biological processnitrogen compound metabolic process

Inferred from electronic annotation. Source: InterPro

   Cellular componentcytosol Ref.4

Inferred from Experiment. Source: Reactome

   Molecular functionbeta-ureidopropionase activity Ref.1 Ref.4

Inferred from Experiment. Source: Reactome

zinc ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 384384Beta-ureidopropionase
PRO_0000204051

Regions

Domain72 – 366295CN hydrolase

Sites

Metal binding971Zinc Potential
Metal binding1581Zinc Potential
Metal binding2801Zinc Potential
Metal binding2931Zinc Potential
Metal binding3071Zinc Potential

Natural variations

Natural variant851A → E in beta-ureidopropionase deficiency; complete loss of activity. Ref.4
VAR_026752
Natural variant3401A → D: dbSNP rs34110964.
VAR_050280

Experimental info

Sequence conflict2631L → LRSL in AAF06739. Ref.1

Sequences

Sequence LengthMass (Da)Tools
Q9UBR1-1 [UniParc].

Last modified May 1, 2000. Version 1.
Checksum: 62B81982D2D63CC3

FASTA38443,166
        10         20         30         40         50         60 
MAGAEWKSLE ECLEKHLPLP DLQEVKRVLY GKELRKLDLP REAFEAASRE DFELQGYAFE 

        70         80         90        100        110        120 
AAEEQLRRPR IVHVGLVQNR IPLPANAPVA EQVSALHRRI KAIVEVAAMC GVNIICFQEA 

       130        140        150        160        170        180 
WTMPFAFCTR EKLPWTEFAE SAEDGPTTRF CQKLAKNHDM VVVSPILERD SEHGDVLWNT 

       190        200        210        220        230        240 
AVVISNSGAV LGKTRKNHIP RVGDFNESTY YMEGNLGHPV FQTQFGRIAV NICYGRHHPL 

       250        260        270        280        290        300 
NWLMYSINGA EIIFNPSATI GALSESLWPI EARNAAIANH CFTCAINRVG TEHFPNEFTS 

       310        320        330        340        350        360 
GDGKKAHQDF GYFYGSSYVA APDSSRTPGL SRSRDGLLVA KLDLNLCQQV NDVWNFKMTG 

       370        380 
RYEMYARELA EAVKSNYSPT IVKE 

« Hide

References

« Hide 'large scale' references
[1]"cDNA cloning, genomic structure and chromosomal localization of the human BUP-1 gene encoding beta-ureidopropionase."
Vreken P., van Kuilenburg A.B.P., Hamajima N., Meinsma R., van Lenthe H., Goehlich-Ratmann G., Assmann B.E., Wevers R.A., van Gennip A.H.
Biochim. Biophys. Acta 1447:251-257(1999) [PubMed: 10542323] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA].
[2]"Expression and properties of human liver beta-ureidopropionase."
Sakamoto T., Sakata S.F., Matsuda K., Horikawa Y., Tamaki N.
J. Nutr. Sci. Vitaminol. 47:132-138(2001) [PubMed: 11508704] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA], CHARACTERIZATION.
Tissue: Liver.
[3]"A genome annotation-driven approach to cloning the human ORFeome."
Collins J.E., Wright C.L., Edwards C.A., Davis M.P., Grinham J.A., Cole C.G., Goward M.E., Aguado B., Mallya M., Mokrab Y., Huckle E.J., Beare D.M., Dunham I.
Genome Biol. 5:RESEARCH84.1-RESEARCH84.11(2004) [PubMed: 15461802] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[4]"Beta-ureidopropionase deficiency: an inborn error of pyrimidine degradation associated with neurological abnormalities."
van Kuilenburg A.B.P., Meinsma R., Beke E., Assmann B., Ribes A., Lorente I., Busch R., Mayatepek E., Abeling N.G.G.M., van Cruchten A., Stroomer A.E.M., van Lenthe H., Zoetekouw L., Kulik W., Hoffmann G.F., Voit T., Wevers R.A., Rutsch F., van Gennip A.H.
Hum. Mol. Genet. 13:2793-2801(2004) [PubMed: 15385443] [Abstract]
Cited for: VARIANT BETA-UREIDOPROPIONASE DEFICIENCY GLU-85, CHARACTERIZATION OF VARIANT BETA-UREIDOPROPIONASE DEFICIENCY GLU-85.
+Additional computationally mapped references.

Web resources

Cross-references

Sequence databases

AF163312 mRNA. Translation: AAF06735.1.
AF169559 expand/collapse EMBL AC list , AF169550, AF169551, AF169552, AF169553, AF169554, AF169555, AF169556, AF169557, AF169558 Genomic DNA. Translation: AAF06739.1.
AB013885 mRNA. Translation: BAA88634.1.
CR456375 mRNA. Translation: CAG30261.1.
IPIIPI00008842.
RefSeqNP_057411.1.
UniGeneHs.474388

3D structure databases

ModBaseSearch...

Proteomic databases

PRIDEQ9UBR1.

Genome annotation databases

EnsemblENSG00000100024. Homo sapiens. [Contig view]
GeneID51733.
KEGGhsa:51733.
NMPDRfig|9606.3.peg.21425.

Organism-specific databases

GeneCardsGC22P023215.
H-InvDBHIX0021458.
HGNCHGNC:16297. UPB1.
HPAHPA000728.
MIM606673. gene+phenotype.
Orphanet65287. Beta-ureidopropionase deficiency.
PharmGKBPA418.
GenAtlasSearch...

Phylogenomic databases

HOGENOMQ9UBR1.
HOVERGENQ9UBR1.
OMAQ9UBR1. AIANSYF.

Enzyme and pathway databases

BRENDA3.5.1.6. 247.
ReactomeREACT_1698. Nucleotide metabolism.

Gene expression databases

ArrayExpressQ9UBR1.
BgeeQ9UBR1.
CleanExHS_UPB1.
GermOnlineENSG00000100024. Homo sapiens.

Family and domain databases

InterProIPR003010. Ntlse/CNhydtse.
[Graphical view]
Gene3DG3DSA:3.60.110.10. Ntlse/CNhydtse. 1 hit.
PfamPF00795. CN_hydrolase. 1 hit.
[Graphical view]
PROSITEPS50263. CN_HYDROLASE. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

NextBio55796.
SOURCESearch...

Entry information

Entry nameBUP1_HUMAN
AccessionPrimary (citable) accession number: Q9UBR1
Secondary accession number(s): Q9UIR3
Entry history
Integrated into UniProtKB/Swiss-Prot: September 26, 2001
Last sequence update: May 1, 2000
Last modified: June 16, 2009
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

Relevant documents

Human chromosome 22

Human chromosome 22: entries, gene names and cross-references to MIM

Human entries with polymorphisms or disease mutations

List of human entries with polymorphisms or disease mutations

Human polymorphisms and disease mutations

Index of human polymorphisms and disease mutations

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents