Reviewed, UniProtKB/Swiss-Prot Q0A939 (GCH1_ALHEH)

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:	Mlg_1299

Organism

Alkalilimnicola ehrlichei (strain MLHE-1) [Complete proteome] [HAMAP]

Taxonomic identifier

187272 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Chromatiales › Ectothiorhodospiraceae › Alkalilimnicola

Protein attributes

Sequence length	185 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 MF_00223
Pathway	Cofactor biosynthesis; 7,8-dihydroneopterin triphosphate biosynthesis; 7,8-dihydroneopterin triphosphate from GTP: step 1/1. HAMAP MF_00223
Subunit structure	Toroid-shaped homodecamer, composed of two pentamers of five dimers By similarity. HAMAP MF_00223
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
Gene Ontology (GO)
Biological process	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: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 185	185	GTP cyclohydrolase 1 HAMAP MF_00223		PRO_1000043656
Sites
	Metal binding	75	1	Zinc By similarity
	Metal binding	78	1	Zinc By similarity
	Metal binding	146	1	Zinc By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q0A939-1 [UniParc]. Last modified October 17, 2006. Version 1. Checksum: 9F789711ABDE2485	FASTA	185	21,008
	10 20 30 40 50 60 MSERIEAAYR RILQDLGEDP DREGLKDTPA RAAKAMRFLT KGYQEDLDQV LNGAVFSSDN 70 80 90 100 110 120 DEMVIVRNIE LYSLCEHHLL PFIGRAHVAY LPDGKVIGLS KVARIVDMYA RRLQIQENLT 130 140 150 160 170 180 RQIALAVQQV TGGKGVAVYI NARHLCMMMR GVEKQNSEMS TSVMLGDFRE NPKTRNEFLQ LIRTP

References

[1]

"Complete sequence of Alkalilimnicola ehrilichei MLHE-1." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J. , Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Oremland R.S., Hoeft S.E., Switzer-Blum J., Kulp T., King G., Tabita R., Witte B., Santini J.M., Basu P., Hollibaugh J.T., Xie G., Stolz J.F., Richardson P. Submitted (AUG-2006) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000453 Genomic DNA. Translation: ABI56648.1.
RefSeq	YP_742138.1.
3D structure databases
SMR	Q0A939. Positions 5-184.
ModBase	Search...
Protein-protein interaction databases
STRING	Q0A939.
Genome annotation databases
GeneID	4269066.
GenomeReviews	Gene locus Mlg_1299 in contig CP000453_GR.
KEGG	aeh:Mlg_1299.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0302.
HOGENOM	HBG370191.
OMA	MAPIIGR.
PhylomeDB	Q0A939.
Family and domain databases
HAMAP	MF_00223. FolE. [Tree]
InterPro	IPR001474. GTP_CycHdrlase_I. IPR020602. GTP_CycHdrlase_I/CN_OxRdtase. IPR018234. GTP_CycHdrlase_I_CS. [Graphical view]
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_ALHEH

Accession

Primary (citable) accession number: Q0A939

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	October 17, 2006
Last modified:	February 9, 2010
This is version 32 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)