P56462 (GCH1_HELPY) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
GTP cyclohydrolase 1
EC=3.5.4.16

Alternative name(s):
GTP cyclohydrolase I
Short name=GTP-CH-I

Gene names

Name:	folE
Ordered Locus Names:	HP_0928

Organism

Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori) [Reference proteome] [HAMAP]

Taxonomic identifier

85962 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Proteobacteria › delta/epsilon subdivisions › Epsilonproteobacteria › Campylobacterales › Helicobacteraceae › Helicobacter › Helicobacter pylori

Protein attributes

Sequence length	180 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Catalytic activity	GTP + H2O = formate + 2-amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)-dihydropteridine triphosphate. HAMAP-Rule MF_00223
Pathway	Cofactor biosynthesis; 7,8-dihydroneopterin triphosphate biosynthesis; 7,8-dihydroneopterin triphosphate from GTP: step 1/1. HAMAP-Rule MF_00223
Subunit structure	Toroid-shaped homodecamer, composed of two pentamers of five dimers By similarity.
Sequence similarities	Belongs to the GTP cyclohydrolase I family.

Ontologies

Keywords
Biological process	One-carbon metabolism
Ligand	GTP-binding Metal-binding Nucleotide-binding Zinc
Molecular function	Hydrolase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological_process	7,8-dihydroneopterin 3'-triphosphate biosynthetic process Inferred from electronic annotation. Source: UniProtKB-UniPathway one-carbon metabolic process Inferred from electronic annotation. Source: HAMAP tetrahydrofolate biosynthetic process Inferred from electronic annotation. Source: HAMAP
Cellular_component	cytoplasm Inferred from electronic annotation. Source: InterPro
Molecular_function	GTP binding Inferred from electronic annotation. Source: UniProtKB-KW GTP cyclohydrolase I activity Inferred from electronic annotation. Source: HAMAP zinc ion binding Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 180	180	GTP cyclohydrolase 1 HAMAP-Rule MF_00223		PRO_0000119413
Sites
	Metal binding	71	1	Zinc By similarity
	Metal binding	74	1	Zinc By similarity
	Metal binding	142	1	Zinc By similarity

Sequences

	Sequence		Length	Mass (Da)
	P56462 [UniParc]. Last modified July 15, 1998. Version 1. Checksum: 95521F3F3AE863FF	FASTA	180	20,858
	10 20 30 40 50 60 MENFFNQFFE SIGEDKNREG LKETPKRVQE LWKFLYKGYK EDPRVALKSA YFQGVCDEMI 70 80 90 100 110 120 VAQNIEFYST CEHHLLPFLG NISVGYIPKE KIVGISAIAK LIEIYSRRLQ IQERLTIQIA 130 140 150 160 170 180 ETFDEIIEPR GVIVVCEAKH LCMSMQGVQK QNAIIKTSVL RGLFKKDSKT RAEFMQLLKS

References

[1]

"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. , Khalak H.G., Glodek A., McKenney K., FitzGerald L.M., Lee N., Adams M.D., Hickey E.K., Berg D.E., Gocayne J.D., Utterback T.R., Peterson J.D., Kelley J.M., Cotton M.D., Weidman J.F., Fujii C., Bowman C., Watthey L., Wallin E., Hayes W.S., Borodovsky M., Karp P.D., Smith H.O., Fraser C.M., Venter J.C. Nature 388:539-547(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 700392 / 26695.

+

Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE000511 Genomic DNA. Translation: AAD07973.1.
PIR	H64635.
RefSeq	NP_207720.1. NC_000915.1. YP_006934843.1. NC_018939.1.
3D structure databases
ProteinModelPortal	P56462.
ModBase	Search...
Protein-protein interaction databases
DIP	DIP-3586N.
MINT	MINT-164654.
STRING	85962.HP0928.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	AAD07973; AAD07973; HP_0928.
GeneID	13870115. 899457.
KEGG	heo:C694_04775. hpy:HP0928.
PATRIC	20593157. VBIHelPyl33062_0964.
Phylogenomic databases
eggNOG	COG0302.
KO	K01495.
OMA	LYSVCEH.
ProtClustDB	PRK09347.
Enzyme and pathway databases
UniPathway	UPA00848; UER00151.
Family and domain databases
HAMAP	MF_00223. FolE.
InterPro	IPR001474. GTP_CycHdrlase_I. IPR020602. GTP_CycHdrlase_I/CN_OxRdtase. IPR018234. GTP_CycHdrlase_I_CS. [Graphical view]
PANTHER	PTHR11109. PTHR11109. 1 hit.
Pfam	PF01227. GTP_cyclohydroI. 1 hit. [Graphical view]
TIGRFAMs	TIGR00063. folE. 1 hit.
PROSITE	PS00859. GTP_CYCLOHYDROL_1_1. 1 hit. PS00860. GTP_CYCLOHYDROL_1_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

GCH1_HELPY

Accession

Primary (citable) accession number: P56462

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 15, 1998
Last sequence update:	July 15, 1998
Last modified:	May 1, 2013
This is version 84 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program