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A6UR78 (HEM1_METVS) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 53. 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:Mevan_1100
OrganismMethanococcus vannielii (strain SB / ATCC 35089 / DSM 1224) [Complete proteome] [HAMAP]
Taxonomic identifier406327 [NCBI]
Taxonomic lineageArchaeaEuryarchaeotaMethanococciMethanococcalesMethanococcaceaeMethanococcus

Protein attributes

Sequence length379 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 – 379379Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_1000004644

Regions

Nucleotide binding163 – 1686NADP By similarity
Region38 – 414Substrate binding By similarity
Region89 – 913Substrate binding By similarity

Sites

Active site391Nucleophile By similarity
Binding site841Substrate By similarity
Binding site951Substrate By similarity
Site741Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
A6UR78 [UniParc].

Last modified August 21, 2007. Version 1.
Checksum: 4DA687CEFAEC775E

FASTA37943,233
        10         20         30         40         50         60 
MLVIKADYKK YPLPVLESMR INEDEFYGKY DACIIVQTCN RIEAYFDEEI NDIEKIIPDF 

        70         80         90        100        110        120 
KGFDVIKGKK ATLHFLNVAC GMDSMILGEN QILGQIKSSY HKSKELKKTS KYLENLFLKA 

       130        140        150        160        170        180 
IHVGQRVRAE TKINEGGVSI GSAAVELAEM KLGLKNRNVL LIGAGEIGTL VAKALIEKHI 

       190        200        210        220        230        240 
KAVIVANRTY ERAETLAKEL KGMAVHFDKL KEAINFSDVI ICATSSPHYI LEKSDLLDVG 

       250        260        270        280        290        300 
NKIIIDIANP RDVDDSVREL ENISLYTIDD LRNISDKNLQ KRLKEVPIVE NIIEEEYGIL 

       310        320        330        340        350        360 
LKQIEKTNVE EVIKDFNTYI EDVRKKELEK AVRLCKNKSP DEIMENFSKA FVKRITHDFV 

       370 
SYSLSVSKED LLNSIWWKK 

« Hide

References

[1]"Complete sequence of Methanococcus vannielii SB."
US DOE Joint Genome Institute
Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E., Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Anderson I. expand/collapse author list , Sieprawska-Lupa M., Whitman W.B., Richardson P.
Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: SB / ATCC 35089 / DSM 1224.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000742 Genomic DNA. Translation: ABR55000.1.
RefSeqYP_001323612.1. NC_009634.1.

3D structure databases

ProteinModelPortalA6UR78.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING406327.Mevan_1100.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABR55000; ABR55000; Mevan_1100.
GeneID5324539.
KEGGmvn:Mevan_1100.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109651.
KOK02492.
OMAMIICEEL.

Enzyme and pathway databases

BioCycMVAN406327:GI04-1127-MONOMER.
UniPathwayUPA00251; UER00316.

Family and domain databases

Gene3D1.10.1200.70. 1 hit.
3.40.50.720. 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_METVS
AccessionPrimary (citable) accession number: A6UR78
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: August 21, 2007
Last modified: May 14, 2014
This is version 53 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