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Q1IWG2 (HEM1_DEIGD) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 71. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Glutamyl-tRNA reductase

Short name=GluTR
EC=1.2.1.70
Gene names
Name:hemA
Ordered Locus Names:Dgeo_2128
OrganismDeinococcus geothermalis (strain DSM 11300) [Complete proteome] [HAMAP]
Taxonomic identifier319795 [NCBI]
Taxonomic lineageBacteriaDeinococcus-ThermusDeinococciDeinococcalesDeinococcaceaeDeinococcus

Protein attributes

Sequence length349 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA) By similarity. HAMAP-Rule MF_00087

Catalytic activity

L-glutamate 1-semialdehyde + NADP+ + tRNA(Glu) = L-glutamyl-tRNA(Glu) + NADPH. HAMAP-Rule MF_00087

Pathway

Porphyrin-containing compound metabolism; protoporphyrin-IX biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2. HAMAP-Rule MF_00087

Subunit structure

Homodimer By similarity. HAMAP-Rule MF_00087

Domain

Possesses an unusual extended V-shaped dimeric structure with each monomer consisting of three distinct domains arranged along a curved 'spinal' alpha-helix. The N-terminal catalytic domain specifically recognizes the glutamate moiety of the substrate. The second domain is the NADPH-binding domain, and the third C-terminal domain is responsible for dimerization By similarity. HAMAP-Rule MF_00087

Miscellaneous

During catalysis, the active site Cys acts as a nucleophile attacking the alpha-carbonyl group of tRNA-bound glutamate with the formation of a thioester intermediate between enzyme and glutamate, and the concomitant release of tRNA(Glu). The thioester intermediate is finally reduced by direct hydride transfer from NADPH, to form the product GSA By similarity.

Sequence similarities

Belongs to the glutamyl-tRNA reductase family.

Sequence caution

The sequence ABF46422.1 differs from that shown. Reason: Erroneous initiation.

Ontologies

Keywords
   Biological processPorphyrin biosynthesis
   LigandNADP
   Molecular functionOxidoreductase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processprotoporphyrinogen IX biosynthetic process

Inferred from electronic annotation. Source: UniProtKB-UniPathway

   Molecular_functionNADP binding

Inferred from electronic annotation. Source: InterPro

glutamyl-tRNA reductase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 349349Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_0000335027

Regions

Nucleotide binding185 – 1906NADP By similarity
Region53 – 564Substrate binding By similarity
Region110 – 1123Substrate binding By similarity

Sites

Active site541Nucleophile By similarity
Binding site1051Substrate By similarity
Binding site1161Substrate By similarity
Site951Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
Q1IWG2 [UniParc].

Last modified May 20, 2008. Version 2.
Checksum: 9B1FA1D2703A99E9

FASTA34937,531
        10         20         30         40         50         60 
MPPLAPLDFA VIGLNHQTAP VEVREQAAVR AGDEGKVLQH LSRYAREVML LNTCNRTEVY 

        70         80         90        100        110        120 
LAGLQGDPLR AFESGWGRAL DGHLYVHRGE AAATHLYRVA AGLDSLVIGE TQIQGQVKRA 

       130        140        150        160        170        180 
WQEAHARGLS GTLLNKVAQG ALAAGKRVRS ETGLSDKVVS VSSAAVELAE AALGELRHRT 

       190        200        210        220        230        240 
ALILGAGETA ELTLTHLRAA GVQDVIVVNR TEARARQLAD KLGGRACAAE YLHEVLPEAD 

       250        260        270        280        290        300 
VVIASSAAPH YVLHGEGVRA ALAKRPERPI FLIDISVPRI LDPDIRAVSG AHLYNLDDLT 

       310        320        330        340 
AIVSRNLQSR RAALPYAEAI IREAVADLLR WHLTREAQLG RRAVALASD 

« Hide

References

[1]"Complete sequence of chromosome 1 of Deinococcus geothermalis DSM 11300."
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., Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J. expand/collapse author list , Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Daly M.J., Fredrickson J.K., Makarova K.S., Gaidamakova E.K., Zhai M., Richardson P.
Submitted (APR-2006) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: DSM 11300.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000359 Genomic DNA. Translation: ABF46422.1. Different initiation.
RefSeqYP_605591.1. NC_008025.1.

3D structure databases

ProteinModelPortalQ1IWG2.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING319795.Dgeo_2128.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABF46422; ABF46422; Dgeo_2128.
GeneID4058863.
KEGGdge:Dgeo_2128.
PATRIC21626231. VBIDeiGeo41128_2727.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109651.
KOK02492.
OrthoDBEOG6MWNBM.

Enzyme and pathway databases

BioCycDGEO319795:GHMU-2176-MONOMER.
UniPathwayUPA00251; UER00316.

Family and domain databases

Gene3D3.40.50.720. 1 hit.
HAMAPMF_00087. Glu_tRNA_reductase.
InterProIPR000343. 4pyrrol_synth_GluRdtase.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR016040. NAD(P)-bd_dom.
IPR018214. Pyrrol_synth_GluRdtase_CS.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view]
PfamPF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view]
PIRSFPIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMSSF69742. SSF69742. 1 hit.
TIGRFAMsTIGR01035. hemA. 1 hit.
PROSITEPS00747. GLUTR. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameHEM1_DEIGD
AccessionPrimary (citable) accession number: Q1IWG2
Entry history
Integrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: May 20, 2008
Last modified: May 14, 2014
This is version 71 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways