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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Legionella pneumophila (strain Lens)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA).UniRule annotation

Catalytic activityi

L-glutamate 1-semialdehyde + NADP+ + tRNA(Glu) = L-glutamyl-tRNA(Glu) + NADPH.UniRule annotation

Pathway: protoporphyrin-IX biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes 5-aminolevulinate from L-glutamyl-tRNA(Glu).UniRule annotation
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. Glutamyl-tRNA reductase (hemA)
  2. Glutamate-1-semialdehyde 2,1-aminomutase (hemL)
This subpathway is part of the pathway protoporphyrin-IX biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-aminolevulinate from L-glutamyl-tRNA(Glu), the pathway protoporphyrin-IX biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei50 – 501NucleophileUniRule annotation
Sitei95 – 951Important for activityUniRule annotation
Binding sitei105 – 1051SubstrateUniRule annotation
Binding sitei116 – 1161SubstrateUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi185 – 1906NADPUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Porphyrin biosynthesis

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciLPNE297245:GJD4-2446-MONOMER.
UniPathwayiUPA00251; UER00316.

Names & Taxonomyi

Protein namesi
Recommended name:
Glutamyl-tRNA reductaseUniRule annotation (EC:1.2.1.70UniRule annotation)
Short name:
GluTRUniRule annotation
Gene namesi
Name:hemAUniRule annotation
Ordered Locus Names:lpl2256
OrganismiLegionella pneumophila (strain Lens)
Taxonomic identifieri297245 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaLegionellalesLegionellaceaeLegionella
ProteomesiUP000002517 Componenti: Chromosome

Organism-specific databases

LegioListilpl2256.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 424424Glutamyl-tRNA reductasePRO_1000004631Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ5WUB2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 524Substrate bindingUniRule annotation
Regioni110 – 1123Substrate bindingUniRule annotation

Domaini

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.UniRule annotation

Sequence similaritiesi

Belongs to the glutamyl-tRNA reductase family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109650.
KOiK02492.
OMAiEIIFDAD.
OrthoDBiEOG6MWNBM.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
HAMAPiMF_00087. Glu_tRNA_reductase.
InterProiIPR000343. 4pyrrol_synth_GluRdtase.
IPR015896. 4pyrrol_synth_GluRdtase_dimer.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR016040. NAD(P)-bd_dom.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view]
PfamiPF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view]
PIRSFiPIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMiSSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
TIGRFAMsiTIGR01035. hemA. 1 hit.

Sequencei

Sequence statusi: Complete.

Q5WUB2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVFVACGLNH KTAPIHVREK VALQPAMQDS LLSSLLDLPE VNEAAILSTC
60 70 80 90 100
NRTEIYCDTN TPEVLGNWLA HEHQLSEELL SQFLYIHQGK EGIKHTLRVA
110 120 130 140 150
SGLDSMMIGE PQILGQMKQA YQHACRLGTV KTQLRPVFEY IFRASKRIRT
160 170 180 190 200
RSGIGANPVS IAYAAVQLIG QLFKNYHSLS VFLIGSGETA SLVAKYLHQH
210 220 230 240 250
GVHRFLIASR TLENAQKLAE TFDGKTLSIG DIPQYLPLAD VVISATACPL
260 270 280 290 300
PFINKSLVEH ALEQRNHAPM FLLDLAVPRD IEGNVNELEQ VHLYNVDDLQ
310 320 330 340 350
SMIEKGMDER RNAALQAEQL IESELDNYIR WHRSLRAKDV ICDYRNQMHT
360 370 380 390 400
LAQQELQRAL KKISAGQNQQ DVLNEFSMRL VNKLTHNPTI GLRQMAWDNR
410 420
EDLLDLARYL FDTTANQSLY EEIS
Length:424
Mass (Da):47,960
Last modified:November 23, 2004 - v1
Checksum:iA72A07565967B5F3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR628337 Genomic DNA. Translation: CAH16496.1.
RefSeqiWP_011216227.1. NC_006369.1.
YP_127591.1. NC_006369.1.

Genome annotation databases

EnsemblBacteriaiCAH16496; CAH16496; lpl2256.
KEGGilpf:lpl2256.
PATRICi22318329. VBILegPne33733_2475.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR628337 Genomic DNA. Translation: CAH16496.1.
RefSeqiWP_011216227.1. NC_006369.1.
YP_127591.1. NC_006369.1.

3D structure databases

ProteinModelPortaliQ5WUB2.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAH16496; CAH16496; lpl2256.
KEGGilpf:lpl2256.
PATRICi22318329. VBILegPne33733_2475.

Organism-specific databases

LegioListilpl2256.

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109650.
KOiK02492.
OMAiEIIFDAD.
OrthoDBiEOG6MWNBM.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00316.
BioCyciLPNE297245:GJD4-2446-MONOMER.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
HAMAPiMF_00087. Glu_tRNA_reductase.
InterProiIPR000343. 4pyrrol_synth_GluRdtase.
IPR015896. 4pyrrol_synth_GluRdtase_dimer.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR016040. NAD(P)-bd_dom.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view]
PfamiPF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view]
PIRSFiPIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMiSSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
TIGRFAMsiTIGR01035. hemA. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "Evidence in the Legionella pneumophila genome for exploitation of host cell functions and high genome plasticity."
    Cazalet C., Rusniok C., Brueggemann H., Zidane N., Magnier A., Ma L., Tichit M., Jarraud S., Bouchier C., Vandenesch F., Kunst F., Etienne J., Glaser P., Buchrieser C.
    Nat. Genet. 36:1165-1173(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Lens.

Entry informationi

Entry nameiHEM1_LEGPL
AccessioniPrimary (citable) accession number: Q5WUB2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: November 23, 2004
Last modified: June 24, 2015
This is version 85 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

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.UniRule annotation

Keywords - Technical termi

Complete proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.