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Q2FXQ9 (HEM1_STAA8) Reviewed, UniProtKB/Swiss-Prot

Last modified July 9, 2014. Version 73. 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:SAOUHSC_01776
OrganismStaphylococcus aureus (strain NCTC 8325) [Reference proteome] [HAMAP]
Taxonomic identifier93061 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacilliBacillalesStaphylococcus

Protein attributes

Sequence length448 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
Reference 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 – 448448Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_1000004702

Regions

Nucleotide binding189 – 1946NADP By similarity
Region49 – 524Substrate binding By similarity
Region114 – 1163Substrate binding By similarity

Sites

Active site501Nucleophile By similarity
Binding site1091Substrate By similarity
Binding site1201Substrate By similarity
Site991Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
Q2FXQ9 [UniParc].

Last modified March 21, 2006. Version 1.
Checksum: 1F9326BBCB223E18

FASTA44850,159
        10         20         30         40         50         60 
MHFIAISINH RTADVALREQ VTFRDDALRI AHEDLYETKS ILENVILSTC NRTEVYAVVD 

        70         80         90        100        110        120 
QIHTGRYYIQ RFLARAFGFE VDDIKAMSEV KVGDEAVEHL LRVTSGLDSI VLGETQILGQ 

       130        140        150        160        170        180 
IRDAFFLAQS TGTTGTIFNH LFKQAITFAK RAHNETDIAD NAVSVSYAAV ELAKKVFGKL 

       190        200        210        220        230        240 
KSKQAIIIGA GEMSELSLLN LLGSGITDIT VVNRTIENAM KLAAKHQVKY DELSSLPNLL 

       250        260        270        280        290        300 
ESADIVISST SAQSYIITNE MIERIAENRK QDSLVLIDIA VPRDIEPGIS AITNIFNYDV 

       310        320        330        340        350        360 
DDLKGLVDAN LRERQLAAAT ISEQIPTEIH AHNEWISMLG VVPVIRALRE KAMAIQAETM 

       370        380        390        400        410        420 
DSIDRKLPGL SERERKIISK HTKSIINQML KDPIKQAKEL SSDKKSNEKL ELFQNIFDIE 

       430        440 
AECPHEQAKQ QKESKVKEIS ARRIFSFE 

« Hide

References

[1]"The Staphylococcus aureus NCTC 8325 genome."
Gillaspy A.F., Worrell V., Orvis J., Roe B.A., Dyer D.W., Iandolo J.J.
(In) Fischetti V., Novick R., Ferretti J., Portnoy D., Rood J. (eds.); Gram positive pathogens, 2nd edition, pp.381-412, ASM Press, Washington D.C. (2006)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: NCTC 8325.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000253 Genomic DNA. Translation: ABD30845.1.
RefSeqYP_500281.1. NC_007795.1.

3D structure databases

ProteinModelPortalQ2FXQ9.
SMRQ2FXQ9. Positions 3-315.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING93061.SAOUHSC_01776.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABD30845; ABD30845; SAOUHSC_01776.
GeneID3919694.
KEGGsao:SAOUHSC_01776.
PATRIC19580919. VBIStaAur99865_1620.

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109651.
KOK02492.
OMALAHKLTN.
OrthoDBEOG6MWNBM.

Enzyme and pathway databases

BioCycSAUR93061:GIWJ-1695-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_STAA8
AccessionPrimary (citable) accession number: Q2FXQ9
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: March 21, 2006
Last modified: July 9, 2014
This is version 73 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