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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Yersinia pestis
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

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

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

Catalytic activityi

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

Pathwayi: 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), Glutamyl-tRNA reductase (hemA)
  2. Glutamate-1-semialdehyde 2,1-aminomutase (hemL), 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)DescriptionActionsGraphical viewLength
Active sitei50NucleophileUniRule annotation1
Sitei99Important for activityUniRule annotation1
Binding sitei109SubstrateUniRule annotation1
Binding sitei120SubstrateUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi189 – 194NADPUniRule annotation6

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductase
Biological processPorphyrin biosynthesis
LigandNADP

Enzyme and pathway databases

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:YPO2016, y2291, YP_1864
OrganismiYersinia pestis
Taxonomic identifieri632 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesYersiniaceaeYersinia
Proteomesi
  • UP000000815 Componenti: Chromosome
  • UP000001019 Componenti: Chromosome
  • UP000002490 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001140941 – 420Glutamyl-tRNA reductaseAdd BLAST420

Proteomic databases

PaxDbiQ8ZEX9

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

IntActiQ8ZEX9, 2 interactors
STRINGi187410.y2291

Structurei

3D structure databases

ProteinModelPortaliQ8ZEX9
SMRiQ8ZEX9
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni49 – 52Substrate bindingUniRule annotation4
Regioni114 – 116Substrate bindingUniRule annotation3

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

eggNOGiENOG4105C7E Bacteria
COG0373 LUCA
HOGENOMiHOG000109650
KOiK02492
OMAiFAFKCAA

Family and domain databases

Gene3Di3.30.460.30, 1 hit
HAMAPiMF_00087 Glu_tRNA_reductase, 1 hit
InterProiView protein in InterPro
IPR000343 4pyrrol_synth_GluRdtase
IPR015896 4pyrrol_synth_GluRdtase_dimer
IPR015895 4pyrrol_synth_GluRdtase_N
IPR018214 GluRdtase_CS
IPR036453 GluRdtase_dimer_dom_sf
IPR036343 GluRdtase_N_sf
IPR036291 NAD(P)-bd_dom_sf
IPR006151 Shikm_DH/Glu-tRNA_Rdtase
PfamiView protein in Pfam
PF00745 GlutR_dimer, 1 hit
PF05201 GlutR_N, 1 hit
PF01488 Shikimate_DH, 1 hit
PIRSFiPIRSF000445 4pyrrol_synth_GluRdtase, 1 hit
SUPFAMiSSF51735 SSF51735, 1 hit
SSF69075 SSF69075, 1 hit
SSF69742 SSF69742, 1 hit
TIGRFAMsiTIGR01035 hemA, 1 hit
PROSITEiView protein in PROSITE
PS00747 GLUTR, 1 hit

Sequencei

Sequence statusi: Complete.

Q8ZEX9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTLLALGINH KTAPVSLRER VTFSPESMDQ ALNSLLQQPL VQGGVVLSTC
60 70 80 90 100
NRTELYLSVE QQENLHEQLT AWLCNYHKLS PDDVRQSLYW HHGNDAVRHL
110 120 130 140 150
MRVASGLDSQ VLGEPQILGQ VKKAFAESQR GQSLSSELER LFQKSFSVAK
160 170 180 190 200
RVRTETEIGA SAVSVAFAAC SLARQIFESL SELHVLLVGA GETIELVARH
210 220 230 240 250
LREHQVKHMI IANRTRERAQ SLASEVGAEV ITLPEIDARL ADADIIISST
260 270 280 290 300
ASPLPIIGKG MVERALKTRR NQPMLFIDIA VPRDIEPEVG KLSNAYLYSV
310 320 330 340 350
DDLQAIIQHN MAQRQAAAVQ AESIVQQESM NFMTWLRAQG AVETIRDYRS
360 370 380 390 400
QAEQVRSEMT AKALVAIEQG ANVEQVINEL AYKLTNRLIH APTKSLQQAA
410 420
SDGDMERLQL LRDSLGLDQH
Length:420
Mass (Da):46,660
Last modified:March 1, 2002 - v1
Checksum:i058C027EFC7DC86F
GO

Sequence cautioni

The sequence AAM85850 differs from that shown. Reason: Erroneous initiation.Curated
The sequence AAS62084 differs from that shown. Reason: Erroneous initiation.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti417 – 420LDQH → WISISFL in AAS62084 (PubMed:15368893).Curated4

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL590842 Genomic DNA Translation: CAL20653.1
AE009952 Genomic DNA Translation: AAM85850.1 Different initiation.
AE017042 Genomic DNA Translation: AAS62084.1 Different initiation.
PIRiAB0246
RefSeqiWP_002211237.1, NZ_PDBR01000040.1
YP_002347002.1, NC_003143.1

Genome annotation databases

EnsemblBacteriaiAAM85850; AAM85850; y2291
AAS62084; AAS62084; YP_1864
GeneIDi1174854
KEGGiype:YPO2016
ypk:y2291
ypm:YP_1864
PATRICifig|214092.21.peg.2401

Similar proteinsi

Entry informationi

Entry nameiHEM1_YERPE
AccessioniPrimary (citable) accession number: Q8ZEX9
Secondary accession number(s): Q0WFD6
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 3, 2002
Last sequence update: March 1, 2002
Last modified: March 28, 2018
This is version 135 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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