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B7LXC5

- HEM1_ECO8A

UniProt

B7LXC5 - HEM1_ECO8A

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Protein

Glutamyl-tRNA reductase

Gene
hemA, ECIAI1_1231
Organism
Escherichia coli O8 (strain IAI1)
Status
Reviewed - 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) By similarity.UniRule annotation

Catalytic activityi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei50 – 501Nucleophile By similarity
Sitei99 – 991Important for activity By similarity
Binding sitei109 – 1091Substrate By similarity
Binding sitei120 – 1201Substrate By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi189 – 1946NADP By similarity

GO - Molecular functioni

  1. glutamyl-tRNA reductase activity Source: UniProtKB-HAMAP
  2. NADP binding Source: InterPro

GO - Biological processi

  1. protoporphyrinogen IX biosynthetic process Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Porphyrin biosynthesis

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciECOL585034:GJ84-1242-MONOMER.
UniPathwayiUPA00251; UER00316.

Names & Taxonomyi

Protein namesi
Recommended name:
Glutamyl-tRNA reductase (EC:1.2.1.70)
Short name:
GluTR
Gene namesi
Name:hemA
Ordered Locus Names:ECIAI1_1231
OrganismiEscherichia coli O8 (strain IAI1)
Taxonomic identifieri585034 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
ProteomesiUP000007098: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 418418Glutamyl-tRNA reductaseUniRule annotationPRO_1000190527Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi585034.ECIAI1_1231.

Structurei

3D structure databases

ProteinModelPortaliB7LXC5.
SMRiB7LXC5. Positions 2-418.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 524Substrate binding By similarity
Regioni114 – 1163Substrate binding By similarity

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 By similarity.UniRule annotation

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109650.
KOiK02492.
OMAiLAHKLTN.
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.
IPR018214. GluRdtase_CS.
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.
PROSITEiPS00747. GLUTR. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

B7LXC5-1 [UniParc]FASTAAdd to Basket

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MTLLALGINH KTAPVSLRER VSFSPDKLDQ ALDSLLAQPM VQGGVVLSTC    50
NRTELYLSVE EQDNLQEALI RWLCDYHNLN EEDLRKSLYW HQDNDAVSHL 100
MRVASGLDSL VLGEPQILGQ VKKAFADSQK GHMKASELER MFQKSFSVAK 150
RVRTETDIGA SAVSVAFAAC TLARQIFESL STVTVLLVGA GETIELVARH 200
LREHKVQKMI IANRTRERAQ ILADEVGAEV IALSEIDERL READIIISST 250
ASPLPIIGKG MVERALKSRR NQPMLLVDIA VPRDVEPEVG KLANAYLYSV 300
DDLQSIISHN LAQRKAAAVE AETIVAQETS EFMAWLRAQS ASETIREYRS 350
QAEHVRDELT AKALAALEQG GDAQAIMQDL AWKLTNRLIH APTKSLQQAA 400
RDGDNERLNI LRDSLGLE 418
Length:418
Mass (Da):46,330
Last modified:March 24, 2009 - v1
Checksum:i9AC9D80BC5510B88
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CU928160 Genomic DNA. Translation: CAQ98090.1.
RefSeqiYP_002386677.1. NC_011741.1.

Genome annotation databases

EnsemblBacteriaiCAQ98090; CAQ98090; ECIAI1_1231.
GeneIDi7126434.
KEGGiecr:ECIAI1_1231.
PATRICi18321760. VBIEscCol26572_1219.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CU928160 Genomic DNA. Translation: CAQ98090.1 .
RefSeqi YP_002386677.1. NC_011741.1.

3D structure databases

ProteinModelPortali B7LXC5.
SMRi B7LXC5. Positions 2-418.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 585034.ECIAI1_1231.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAQ98090 ; CAQ98090 ; ECIAI1_1231 .
GeneIDi 7126434.
KEGGi ecr:ECIAI1_1231.
PATRICi 18321760. VBIEscCol26572_1219.

Phylogenomic databases

eggNOGi COG0373.
HOGENOMi HOG000109650.
KOi K02492.
OMAi LAHKLTN.
OrthoDBi EOG6MWNBM.

Enzyme and pathway databases

UniPathwayi UPA00251 ; UER00316 .
BioCyci ECOL585034:GJ84-1242-MONOMER.

Family and domain databases

Gene3Di 3.40.50.720. 1 hit.
HAMAPi MF_00087. Glu_tRNA_reductase.
InterProi IPR000343. 4pyrrol_synth_GluRdtase.
IPR015896. 4pyrrol_synth_GluRdtase_dimer.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR018214. GluRdtase_CS.
IPR016040. NAD(P)-bd_dom.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view ]
Pfami PF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view ]
PIRSFi PIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMi SSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
TIGRFAMsi TIGR01035. hemA. 1 hit.
PROSITEi PS00747. GLUTR. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: IAI1.

Entry informationi

Entry nameiHEM1_ECO8A
AccessioniPrimary (citable) accession number: B7LXC5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: March 24, 2009
Last modified: September 3, 2014
This is version 47 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 By similarity.

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

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