P43866 (GCH1_HAEIN) 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:	HI_1447

Organism

Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) [Reference proteome] [HAMAP]

Taxonomic identifier

71421 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Haemophilus › Haemophilus influenzae

Protein attributes

Sequence length	218 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 – 218	218	GTP cyclohydrolase 1 HAMAP-Rule MF_00223		PRO_0000119411
Sites
	Metal binding	109	1	Zinc By similarity
	Metal binding	112	1	Zinc By similarity
	Metal binding	180	1	Zinc By similarity

Sequences

	Sequence		Length	Mass (Da)
	P43866 [UniParc]. Last modified November 1, 1995. Version 1. Checksum: BCC60F0038158D38	FASTA	218	24,945
	10 20 30 40 50 60 MSKISLDALN VRNALIEKGI ETPMIDPTQA KNERRESIAK HMHEVMKLIG LDLRDDSLEE 70 80 90 100 110 120 TPNRLAKMFI DEIFSGMDYA NFPKMTKIKN QMKVSEMVQV NDITLTSTCE HHFVTIDGKV 130 140 150 160 170 180 CVAYYPKDWV IGLSKINRIV SFFAQRPQVQ ERLTEQLLTA FQTILETDDV AVYVKATHFC 190 200 210 VKARGIRDTN SYTVTSAYGG VFLEDRDTRK EFLATVQK

References

[1]

"Whole-genome random sequencing and assembly of Haemophilus influenzae Rd." Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F., Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M., McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D., Scott J.D., Shirley R., Liu L.-I. , Glodek A., Kelley J.M., Weidman J.F., Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R., Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D., Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A., Small K.V., Fraser C.M., Smith H.O., Venter J.C. Science 269:496-512(1995) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 51907 / DSM 11121 / KW20 / Rd.

Cross-references

Sequence databases
EMBL GenBank DDBJ	L42023 Genomic DNA. Translation: AAC23097.1.
PIR	A64124.
RefSeq	NP_439599.1. NC_000907.1.
3D structure databases
ProteinModelPortal	P43866.
SMR	P43866. Positions 4-217.
ModBase	Search...
Protein-protein interaction databases
STRING	71421.HI1447.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	AAC23097; AAC23097; HI_1447.
GeneID	950345.
KEGG	hin:HI1447.
PATRIC	20191599. VBIHaeInf48452_1509.
Phylogenomic databases
eggNOG	COG0302.
KO	K01495.
OMA	PTRIAKM.
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_HAEIN

Accession

Primary (citable) accession number: P43866

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 1, 1995
Last sequence update:	November 1, 1995
Last modified:	May 1, 2013
This is version 89 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program