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A1K442 (HEM1_AZOSB) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 58. 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:azo0980
OrganismAzoarcus sp. (strain BH72) [Complete proteome] [HAMAP]
Taxonomic identifier62928 [NCBI]
Taxonomic lineageBacteriaProteobacteriaBetaproteobacteriaRhodocyclalesRhodocyclaceaeAzoarcus

Protein attributes

Sequence length417 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.

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 – 417417Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_1000004593

Regions

Nucleotide binding185 – 1906NADP By similarity
Region49 – 524Substrate binding By similarity
Region110 – 1123Substrate binding By similarity

Sites

Active site501Nucleophile By similarity
Binding site1051Substrate By similarity
Binding site1161Substrate By similarity
Site951Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
A1K442 [UniParc].

Last modified February 6, 2007. Version 1.
Checksum: 987D9E7289CC26F0

FASTA41745,646
        10         20         30         40         50         60 
MQLYALGLNH HTAPLAIRER VAFQPDRLDQ ALQALTDSRT VSEAAILSTC NRTELYFAAE 

        70         80         90        100        110        120 
QPQRAADWLA GFHQLPLAQV SPYLYSYPQR DAVRHVFRVA SGLDSMVLGE PQILGQVKEA 

       130        140        150        160        170        180 
ARRAEEAGTL GTLLHKLFQN TFAVAKEVRS TTAIGANIVS MAAAAVHLTG RIFERVSDQH 

       190        200        210        220        230        240 
VLFIGAGEMI ELCAAHFAGA GPRSMTVANR TEARAEALAA RLGAQTMRLD AIADALPRFD 

       250        260        270        280        290        300 
VVVSCTASPL PIVGLGMVER AVKVRRHRPI VMVDLAVPRD VEPEVGQLDD VFLYTVDDLA 

       310        320        330        340        350        360 
QVVDAGIESR QQAVVEAEGI IDQRVDGFLH WLHARDAVPT IRALREHAET LRRGEIERAL 

       370        380        390        400        410 
RQLAKGEDPQ AVLDALSHGL TNKLMHGPTR FLTQAEGEGQ AEASRVVQQL FNLSRHD 

« Hide

References

[1]"Complete genome of the mutualistic, N2-fixing grass endophyte Azoarcus sp. strain BH72."
Krause A., Ramakumar A., Bartels D., Battistoni F., Bekel T., Boch J., Boehm M., Friedrich F., Hurek T., Krause L., Linke B., McHardy A.C., Sarkar A., Schneiker S., Syed A.A., Thauer R., Vorhoelter F.-J., Weidner S. expand/collapse author list , Puehler A., Reinhold-Hurek B., Kaiser O., Goesmann A.
Nat. Biotechnol. 24:1385-1391(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: BH72.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AM406670 Genomic DNA. Translation: CAL93597.1.
RefSeqYP_932484.1. NC_008702.1.

3D structure databases

ProteinModelPortalA1K442.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING62928.azo0980.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAL93597; CAL93597; azo0980.
GeneID4610012.
KEGGazo:azo0980.
PATRIC21010268. VBIAzoSp26047_0998.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109650.
KOK02492.
OMARTEIYCA.
OrthoDBEOG6MWNBM.
ProtClustDBPRK00045.

Enzyme and pathway databases

UniPathwayUPA00251; UER00316.

Family and domain databases

Gene3D3.40.50.720. 1 hit.
HAMAPMF_00087. Glu_tRNA_reductase.
InterProIPR000343. 4pyrrol_synth_GluRdtase.
IPR015896. 4pyrrol_synth_GluRdtase_dimer.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR016040. NAD(P)-bd_dom.
IPR018214. Pyrrol_synth_GluRdtase_CS.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view]
PfamPF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view]
PIRSFPIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMSSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
TIGRFAMsTIGR01035. hemA. 1 hit.
PROSITEPS00747. GLUTR. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameHEM1_AZOSB
AccessionPrimary (citable) accession number: A1K442
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: February 6, 2007
Last modified: February 19, 2014
This is version 58 of the entry and version 1 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