Reviewed,
UniProtKB/Swiss-Prot P77671 (ALLB_ECOLI)
Last modified
June 16, 2009.
Version 75.
History...
Clusters with 100%,
90%,
50% identity |
Documents (4) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Allantoinase EC=3.5.2.5 Alternative name(s): Allantoin-utilizing enzyme | ||||||
| Gene names |
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| Organism | Escherichia coli (strain K12) [Complete proteome] [HAMAP] | ||||||
| Taxonomic identifier | 83333 [NCBI] | ||||||
| Taxonomic lineage | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia |
Protein attributes
| Sequence length | 453 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Catalyzes the conversion of allantoin (5-ureidohydantoin) to allantoic acid by hydrolytic cleavage of the five-member hydantoin ring. Ref.1 Ref.5 |
| Catalytic activity | (S)-allantoin + H2O = allantoate. Ref.5 |
| Cofactor | Binds 2 zinc ions per subunit Probable. Can also use nickel, cobalt or manganese. |
| Enzyme regulation | Severely inhibited by copper, and competitively inhibited by dithiothreitol (DTT). Zinc concentrations above 2.5 mM and cobalt or nickel concentrations above 1 mM are inhibitors. Ref.5 Ref.6 |
| Pathway | Nitrogen metabolism; (S)-allantoin degradation; allantoate from (S)-allantoin: step 1/1. HAMAP MF_01645 |
| Subunit structure | Homotetramer. Ref.5 |
| Induction | By glyoxylate. HAMAP MF_01645 |
| Post-translational modification | Carbamylation allows a single lysine to coordinate two zinc ions By similarity. |
| Miscellaneous | The zinc-containing form utilizes only the (S)-isomer of allantoin, whereas the cobalt-containing form prefers the (S)-isomer, but also hydrolyzes the (R)-isomer at about 1/10 the rate. HAMAP MF_01645 |
| Sequence similarities | Belongs to the DHOase family. Allantoinase subfamily. |
| biophysicochemical properties | Kinetic parameters: KM=4.2 mM for allantoin (at 40 degrees Celsius and pH 8.0) HAMAP MF_01645 KM=17.0 mM for allantoin (in zinc-supplemented medium at 37 degrees Celsius and pH 7.4) KM=19.5 mM for allantoin (in cobalt-supplemented medium at 37 degrees Celsius and pH 7.4) KM=80.0 mM for allantoin (in nickel-supplemented medium at 37 degrees Celsius and pH 7.4) Vmax=101 µmol/min/mg enzyme (in zinc-supplemented medium at 37 degrees Celsius and pH 7.4) Vmax=8.1 µmol/min/mg enzyme (in cobalt-supplemented medium (20mM) at 37 degrees Celsius and pH 7.4) Vmax=6.7 µmol/min/mg enzyme (at 40 degrees Celsius and pH 8.0) Vmax=3.9 µmol/min/mg enzyme (in cobalt-supplemented medium (2mM) at 37 degrees Celsius and pH 7.4) Vmax=0.7 µmol/min/mg enzyme (without added metal at 37 degrees Celsius and pH 7.4) pH dependence: Optimum pH is 7.5-8.0. The optimal activity is at pH 8.8 for zinc-containing form and pH 9.0 for cobalt-containing form. Temperature dependence: Optimum temperature is 40-45 degrees Celsius. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Purine metabolism |
| Ligand | Metal-binding Zinc |
| Molecular function | Hydrolase |
| Technical term | 3D-structure Complete proteome Direct protein sequencing |
| Gene Ontology (GO) | |
| Biological process | allantoin catabolic process Inferred from electronic annotation. Source: HAMAP purine base metabolic processInferred from electronic annotation. Source: UniProtKB-KW |
| Molecular function | allantoinase activity Inferred from electronic annotation. Source: HAMAP zinc ion bindingInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 453 | 453 | Allantoinase HAMAP MF_01645 | PRO_0000165942 | |||||
Sites | |||||||||
| Metal binding | 59 | 1 | Zinc 1 By similarity | ||||||
| Metal binding | 61 | 1 | Zinc 1 By similarity | ||||||
| Metal binding | 146 | 1 | Zinc 1; via carbamate group By similarity | ||||||
| Metal binding | 146 | 1 | Zinc 2; via carbamate group By similarity | ||||||
| Metal binding | 186 | 1 | Zinc 2 By similarity | ||||||
| Metal binding | 242 | 1 | Zinc 2 By similarity | ||||||
| Metal binding | 315 | 1 | Zinc 1 By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 146 | 1 | N6-carboxylysine By similarity | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Genetic analysis of a chromosomal region containing genes required for assimilation of allantoin nitrogen and linked glyoxylate metabolism in Escherichia coli." Cusa E., Obradors N., Baldoma L., Badia J., Aguilar J. J. Bacteriol. 181:7479-7484(1999) [PubMed: 10601204] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION. Strain: K12 / ECL1. |
| [2] | "Sequence of minutes 4-25 of Escherichia coli." Chung E., Allen E., Araujo R., Aparicio A.M., Davis K., Duncan M., Federspiel N., Hyman R., Kalman S., Komp C., Kurdi O., Lew H., Lin D., Namath A., Oefner P., Roberts D., Schramm S., Davis R.W. Submitted (JAN-1997) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / MG1655 / ATCC 47076. |
| [3] | "The complete genome sequence of Escherichia coli K-12." Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V., Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F., Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B., Shao Y. Science 277:1453-1474(1997) [PubMed: 9278503] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / MG1655 / ATCC 47076. |
| [4] | "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110." Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S., Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T. Mol. Syst. Biol. 2:E1-E5(2006) [PubMed: 16738553] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: K12 / W3110 / ATCC 27325 / DSM 5911. |
| [5] | "Functional expression and characterization of the two cyclic amidohydrolase enzymes, allantoinase and a novel phenylhydantoinase, from Escherichia coli." Kim G.J., Lee D.E., Kim H.-S. J. Bacteriol. 182:7021-7028(2000) [PubMed: 11092864] [Abstract] Cited for: PROTEIN SEQUENCE OF N-TERMINUS, CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES, COFACTOR, ENZYME REGULATION, FUNCTION, SUBUNIT. Strain: K12. |
| [6] | "Metal ion dependence of recombinant Escherichia coli allantoinase." Mulrooney S.B., Hausinger R.P. J. Bacteriol. 185:126-134(2003) [PubMed: 12486048] [Abstract] Cited for: BIOPHYSICOCHEMICAL PROPERTIES, ENZYME REGULATION, STEREOSPECIFICITY, COFACTOR. Strain: K12 / W3110 / ATCC 27325 / DSM 5911. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| U89279 Genomic DNA. Translation: AAB93853.1. U82664 Genomic DNA. Translation: AAB40264.1. U00096 Genomic DNA. Translation: AAC73614.1. AP009048 Genomic DNA. Translation: BAE76290.1. | |||||||||||||
| PIR | G64782. | ||||||||||||
| RefSeq | AP_001160.1. NP_415045.1. | ||||||||||||
3D structure databases | |||||||||||||
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| ModBase | Search... | ||||||||||||
Genome annotation databases | |||||||||||||
| GeneID | 945134. | ||||||||||||
| GenomeReviews | Gene locus JW0500 in contig AP009048_GR. Gene locus b0512 in contig U00096_GR. | ||||||||||||
| KEGG | ecj:JW0500. eco:b0512. | ||||||||||||
Organism-specific databases | |||||||||||||
| EchoBASE | EB3384. | ||||||||||||
| EcoGene | EG13619. allB. | ||||||||||||
| CMR | Search... | ||||||||||||
Phylogenomic databases | |||||||||||||
| HOGENOM | P77671. | ||||||||||||
| OMA | P77671. FEAWGGI. | ||||||||||||
Enzyme and pathway databases | |||||||||||||
| BioCyc | EcoCyc:G6281-MON. MetaCyc:G6281-MON. | ||||||||||||
Family and domain databases | |||||||||||||
| HAMAP | MF_01645. [Tree] | ||||||||||||
| InterPro | IPR017593. Allantoinase. IPR006680. Amidohydro_1. [Graphical view] | ||||||||||||
| Pfam | PF01979. Amidohydro_1. 2 hits. [Graphical view] | ||||||||||||
| ProDom | PD000518. DHOase. 1 hit. [Graphical view] [Entries sharing at least one domain] | ||||||||||||
| TIGRFAMs | TIGR03178. allantoinase. 1 hit. | ||||||||||||
| ProtoNet | Search... | ||||||||||||
Entry information
| Entry name | ALLB_ECOLI | ||||||||
| Accession | Primary (citable) accession number: P77671 Secondary accession number(s): Q2MBR6 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes) | ||||||||
Relevant documents
| Escherichia coli Escherichia coli (strain K12): entries and cross-references to EcoGene |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with


