P48370 (GYRA_HELPY) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 73.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: DNA gyrase subunit A EC=5.99.1.3 | ||||
| Gene names |
| ||||
| Organism | Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori) | ||||
| Taxonomic identifier | 85962 [NCBI] | ||||
| Taxonomic lineage | Bacteria › Proteobacteria › Epsilonproteobacteria › Campylobacterales › Helicobacteraceae › Helicobacter |
Protein attributes
| Sequence length | 827 AA. |
| Sequence status | Complete. |
| Protein existence | Inferred from homology |
General annotation (Comments)
| Function | DNA gyrase negatively supercoils closed circular double-stranded DNA in an ATP-dependent manner and also catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes and knotted rings. HAMAP MF_01897 |
| Catalytic activity | ATP-dependent breakage, passage and rejoining of double-stranded DNA. HAMAP MF_01897 |
| Subunit structure | Made up of two chains. The A chain is responsible for DNA breakage and rejoining; the B chain catalyzes ATP hydrolysis. The enzyme forms an A2B2 tetramer. |
| Subcellular location | Cytoplasm Potential HAMAP MF_01897. |
| Sequence similarities | Belongs to the topoisomerase GyrA/ParC subunit family. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cytoplasm |
| Ligand | ATP-binding DNA-binding Nucleotide-binding |
| Molecular function | Isomerase Topoisomerase |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological process | DNA topological change Inferred from electronic annotation. Source: InterPro regulation of transcription, DNA-dependentInferred from electronic annotation. Source: InterPro |
| Cellular component | chromosome Inferred from electronic annotation. Source: InterPro cytoplasmInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW DNA topoisomerase (ATP-hydrolyzing) activityInferred from electronic annotation. Source: EC |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 827 | 827 | DNA gyrase subunit A HAMAP MF_01897 | PRO_0000145236 | |||||
Sites | |||||||||
| Active site | 126 | 1 | O-(5'-phospho-DNA)-tyrosine intermediate By similarity | ||||||
Experimental info | |||||||||
| Sequence conflict | 4 – 5 | 2 | NS → RL in AAA74376. Ref.1 | ||||||
| Sequence conflict | 191 | 1 | M → I in AAA74376. Ref.1 | ||||||
| Sequence conflict | 199 | 1 | V → A in AAA74376. Ref.1 | ||||||
| Sequence conflict | 208 | 1 | G → E in AAA74376. Ref.1 | ||||||
| Sequence conflict | 354 | 1 | H → R in AAA74376. Ref.1 | ||||||
| Sequence conflict | 397 | 1 | R → Q in AAA74376. Ref.1 | ||||||
| Sequence conflict | 403 | 1 | Q → P in AAA74376. Ref.1 | ||||||
| Sequence conflict | 495 | 1 | N → S in AAA74376. Ref.1 | ||||||
| Sequence conflict | 524 | 1 | A → V in AAA74376. Ref.1 | ||||||
| Sequence conflict | 610 | 1 | D → N in AAA74376. Ref.1 | ||||||
| Sequence conflict | 632 | 1 | E → G in AAA74376. Ref.1 | ||||||
| Sequence conflict | 679 | 1 | E → D in AAA74376. Ref.1 | ||||||
| Sequence conflict | 683 | 1 | I → M in AAA74376. Ref.1 | ||||||
| Sequence conflict | 686 – 687 | 2 | TT → NA in AAA74376. Ref.1 | ||||||
| Sequence conflict | 694 | 1 | K → R in AAA74376. Ref.1 | ||||||
| Sequence conflict | 733 | 1 | G → E in AAA74376. Ref.1 | ||||||
| Sequence conflict | 819 | 1 | T → N Ref.1 | ||||||
| Sequence conflict | 821 – 822 | 2 | SA → PT Ref.1 | ||||||
| Sequence conflict | 824 | 1 | Missing Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Nucleotide sequence of the gyrA gene and characterization of ciprofloxacin-resistant mutants of Helicobacter pylori." Moore R.A., Beckthold B., Wong S., Kureishi A., Bryan L.E. Antimicrob. Agents Chemother. 39:107-111(1995) [PubMed: 7695290] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: UC946. |
| [2] | "The complete genome sequence of the gastric pathogen Helicobacter pylori." Tomb J.-F., White O., Kerlavage A.R., Clayton R.A., Sutton G.G., Fleischmann R.D., Ketchum K.A., Klenk H.-P., Gill S.R., Dougherty B.A., Nelson K.E., Quackenbush J., Zhou L., Kirkness E.F., Peterson S.N., Loftus B.J., Richardson D.L., Dodson R.J. Venter J.C.Nature 388:539-547(1997) [PubMed: 9252185] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 700392 / 26695. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | L29481 Genomic DNA. Translation: AAA74376.1. AE000511 Genomic DNA. Translation: AAD07753.1. |
| PIR | E64607. |
| RefSeq | NP_207495.1. NC_000915.1. |
3D structure databases | |
| ProteinModelPortal | P48370. |
| SMR | P48370. Positions 34-490. |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP-3353N. |
| MINT | MINT-185350. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| GeneID | 898803. |
| GenomeReviews | Gene locus HP_0701 in contig AE000511_GR. |
| KEGG | hpy:HP0701. |
| NMPDR | fig|85962.1.peg.693. |
| PATRIC | 20592689. VBIHelPyl33062_0733. |
| TIGR | HP_0701. |
Phylogenomic databases | |
| HOGENOM | HBG635183. |
| OMA | TSIPPHR. |
| ProtClustDB | PRK05560. |
Family and domain databases | |
| HAMAP | MF_01897. GyrA. [Tree] |
| InterPro | IPR005743. GyrA. IPR006691. GyrA/parC_pinwhl. IPR002205. Topo_IIA_A/C. IPR013758. Topo_IIA_A/C_ab. IPR013757. Topo_IIA_A_a. IPR013760. Topo_IIA_cen. [Graphical view] |
| Gene3D | G3DSA:3.90.199.10. Topo_IIA_A/C_ab. 1 hit. G3DSA:1.10.268.10. Topo_IIA_A_a. 1 hit. |
| KO | K02469. |
| Pfam | PF03989. DNA_gyraseA_C. 6 hits. PF00521. DNA_topoisoIV. 1 hit. [Graphical view] |
| SMART | SM00434. TOP4c. 1 hit. [Graphical view] |
| SUPFAM | SSF56719. Topo_IIA_cen. 1 hit. |
| TIGRFAMs | TIGR01063. GyrA. 1 hit. |
| ProtoNet | Search... |
Entry information
| Entry name | GYRA_HELPY | ||||||||
| Accession | Primary (citable) accession number: P48370 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Prokaryotic Protein Annotation Program | ||||||||
Relevant documents
| Helicobacter pylori Helicobacter pylori (strain 26695): entries and gene names |
| SIMILARITY comments Index of protein domains and families |

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