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P0A6X2

- HEM1_ECO57

UniProt

P0A6X2 - HEM1_ECO57

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Protein

Glutamyl-tRNA reductase

Gene
hemA, Z1981, ECs1715
Organism
Escherichia coli O157:H7
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

BioCyciECOL386585:GJFA-1696-MONOMER.
ECOO157:HEMA-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:Z1981, ECs1715
OrganismiEscherichia coli O157:H7
Taxonomic identifieri83334 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
ProteomesiUP000000558: Chromosome, UP000002519: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 418418Glutamyl-tRNA reductaseUniRule annotationPRO_0000114024Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi155864.Z1981.

Structurei

3D structure databases

ProteinModelPortaliP0A6X2.
SMRiP0A6X2. Positions 3-398.

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.

P0A6X2-1 [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 IALSDIDERL READIIISST 250
ASPLPIIGKG MVERALKSRR NQPMLLVDIA VPRDVEPEVG KLANAYLYSV 300
DDLQSIISHN LAQRKAAAVE AETIVAQETS EFMAWLRAQS ASETIREYRS 350
QAEQVRDELT AKALAALEQG GDAQAIMQDL AWKLTNRLIH APTKSLQQAA 400
RDGDNERLNI LRDSLGLE 418
Length:418
Mass (Da):46,307
Last modified:March 29, 2005 - v1
Checksum:i3CEE59AC53610A88
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE005174 Genomic DNA. Translation: AAG56068.1.
BA000007 Genomic DNA. Translation: BAB35138.1.
PIRiC90843.
RefSeqiNP_287456.1. NC_002655.2.
NP_309742.1. NC_002695.1.

Genome annotation databases

EnsemblBacteriaiAAG56068; AAG56068; Z1981.
BAB35138; BAB35138; BAB35138.
GeneIDi913148.
960460.
KEGGiece:Z1981.
ecs:ECs1715.
PATRICi18352682. VBIEscCol44059_1566.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE005174 Genomic DNA. Translation: AAG56068.1 .
BA000007 Genomic DNA. Translation: BAB35138.1 .
PIRi C90843.
RefSeqi NP_287456.1. NC_002655.2.
NP_309742.1. NC_002695.1.

3D structure databases

ProteinModelPortali P0A6X2.
SMRi P0A6X2. Positions 3-398.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 155864.Z1981.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAG56068 ; AAG56068 ; Z1981 .
BAB35138 ; BAB35138 ; BAB35138 .
GeneIDi 913148.
960460.
KEGGi ece:Z1981.
ecs:ECs1715.
PATRICi 18352682. VBIEscCol44059_1566.

Phylogenomic databases

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

Enzyme and pathway databases

UniPathwayi UPA00251 ; UER00316 .
BioCyci ECOL386585:GJFA-1696-MONOMER.
ECOO157:HEMA-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: O157:H7 / EDL933 / ATCC 700927 / EHEC.
  2. "Complete genome sequence of enterohemorrhagic Escherichia coli O157:H7 and genomic comparison with a laboratory strain K-12."
    Hayashi T., Makino K., Ohnishi M., Kurokawa K., Ishii K., Yokoyama K., Han C.-G., Ohtsubo E., Nakayama K., Murata T., Tanaka M., Tobe T., Iida T., Takami H., Honda T., Sasakawa C., Ogasawara N., Yasunaga T.
    , Kuhara S., Shiba T., Hattori M., Shinagawa H.
    DNA Res. 8:11-22(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: O157:H7 / Sakai / RIMD 0509952 / EHEC.

Entry informationi

Entry nameiHEM1_ECO57
AccessioniPrimary (citable) accession number: P0A6X2
Secondary accession number(s): P13580, Q59405
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 29, 2005
Last sequence update: March 29, 2005
Last modified: September 3, 2014
This is version 73 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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