Skip Header

You are using a version of Internet Explorer that may not display all features of this website. Please upgrade to a modern browser.
Contribute Send feedback
Read comments (?) or add your own

A1R8A6 (HEM1_ARTAT) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 66. 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:AAur_2756
OrganismArthrobacter aurescens (strain TC1) [Complete proteome] [HAMAP]
Taxonomic identifier290340 [NCBI]
Taxonomic lineageBacteriaActinobacteriaActinobacteridaeActinomycetalesMicrococcineaeMicrococcaceaeArthrobacter

Protein attributes

Sequence length440 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 ABM08676.1 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 – 440440Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_0000335009

Regions

Nucleotide binding192 – 1976NADP By similarity
Region47 – 504Substrate binding By similarity
Region115 – 1173Substrate binding By similarity

Sites

Active site481Nucleophile By similarity
Binding site1101Substrate By similarity
Binding site1211Substrate By similarity
Site1001Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
A1R8A6 [UniParc].

Last modified May 20, 2008. Version 2.
Checksum: FC01F5CD3ADA7D8C

FASTA44045,893
        10         20         30         40         50         60 
MVLFSLVATH ADIDLETVAQ LSNGSSELAS AALTDSSVVS GAVVLATCNR YEVYGETANG 

        70         80         90        100        110        120 
ADLEAARSAL VSQISELSGL NEQLVSRSFA THTGPDVTRH LFAVSAGLDS AVVGEREIAG 

       130        140        150        160        170        180 
QVRRALITAQ QEGTASSGLV RLFQAASKTA KDVGAQTALG SRGLSIVSVA LDLATDLAEN 

       190        200        210        220        230        240 
DDWTTKKVVV FGTGAYAGAT MSLLRERGCT DISVYSSSGR AEGFVATRGG TALDADTLPA 

       250        260        270        280        290        300 
AVAAADVMIG CSGSDNRVEA ADLARVRANS GKPLIAIDLA LTHDFDPAVG ELDGVELLTL 

       310        320        330        340        350        360 
ESVRLAAPQE QAESLSQASA IVNGAATSFE SEREARSVDT AIVALRRHTM NVLDAEMEKV 

       370        380        390        400        410        420 
RARHGCTAAA EEVEFALRRM VKQLLHIPTV RARELAANGQ QDDYVAALEA LYGIQVEQPQ 

       430        440 
AAAPASECPV DHEQLRSESA 

« Hide

References

[1]"Secrets of soil survival revealed by the genome sequence of Arthrobacter aurescens TC1."
Mongodin E.F., Shapir N., Daugherty S.C., DeBoy R.T., Emerson J.B., Shvartzbeyn A., Radune D., Vamathevan J., Riggs F., Grinberg V., Khouri H.M., Wackett L.P., Nelson K.E., Sadowsky M.J.
PLoS Genet. 2:2094-2106(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: TC1.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000474 Genomic DNA. Translation: ABM08676.1. Different initiation.
RefSeqYP_948468.1. NC_008711.1.

3D structure databases

ProteinModelPortalA1R8A6.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING290340.AAur_2756.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABM08676; ABM08676; AAur_2756.
GeneID4638618.
KEGGaau:AAur_2756.
PATRIC20980978. VBIArtAur67810_2798.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109649.
KOK02492.
OrthoDBEOG6MWNBM.

Enzyme and pathway databases

BioCycAAUR290340:GI59-2755-MONOMER.
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_ARTAT
AccessionPrimary (citable) accession number: A1R8A6
Entry history
Integrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: May 20, 2008
Last modified: May 14, 2014
This is version 66 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