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B3EPK1

- HEM1_CHLPB

UniProt

B3EPK1 - HEM1_CHLPB

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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Chlorobium phaeobacteroides (strain BS1)
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).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 – 501NucleophileUniRule annotation
Sitei99 – 991Important for activityUniRule annotation
Binding sitei109 – 1091SubstrateUniRule annotation
Binding sitei120 – 1201SubstrateUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi189 – 1946NADPUniRule annotation

GO - Molecular functioni

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

GO - Biological processi

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

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Chlorophyll biosynthesis, Porphyrin biosynthesis

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciCPHA331678:GHME-959-MONOMER.
UniPathwayiUPA00251; UER00316.
UPA00668.

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:Cphamn1_0934
OrganismiChlorobium phaeobacteroides (strain BS1)
Taxonomic identifieri331678 [NCBI]
Taxonomic lineageiBacteriaChlorobiChlorobiaChlorobialesChlorobiaceaeChlorobium/Pelodictyon groupChlorobium
ProteomesiUP000001228: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 426426Glutamyl-tRNA reductasePRO_1000093123Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi331678.Cphamn1_0934.

Structurei

3D structure databases

ProteinModelPortaliB3EPK1.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 524Substrate bindingUniRule annotation
Regioni114 – 1163Substrate 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.
HOGENOMiHOG000109651.
KOiK02492.
OMAiSETNISC.
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.

B3EPK1-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MNIISVGVNH KTAPIEIRER LSLSEVQAKE FLTNLIDDGI AQEAMVVSTC
60 70 80 90 100
NRTELYVVPG MPEVDGNYMK EFLISYKDAQ GEVRPEHFFN RFYCNTARHL
110 120 130 140 150
FEVSSAVDSL ILGEGQILGQ VKNAYRIAVE VQSAGILLTR LCHTAFSVAK
160 170 180 190 200
KVKTKTKIME GAVSVSYAAV ELAQKIFSNL SIKKILLVGA GETGELAAKH
210 220 230 240 250
MFQKNARNIV ITNRTLSKAE ALAEELGTNQ VLPYESYKDH LHEFDIIITA
260 270 280 290 300
VSSKEYVLTE PELQQSMQKR RLKPVIILDL GLPRNVDPEI GNLKNMFLKD
310 320 330 340 350
IDALKHIIDK NLEMRKCELP KVKKIIDEEL VGFAQWINTL KVRPTIVDLQ
360 370 380 390 400
SKFLEIKEKE LERFRYKVSD AELKRMERLT DRILKKILHH PIKMLKAPVD
410 420
TADTIPSRVN LVRNIFDLEE QNRLSK
Length:426
Mass (Da):48,451
Last modified:July 22, 2008 - v1
Checksum:i87F1D618AB249BEF
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001101 Genomic DNA. Translation: ACE03879.1.
RefSeqiYP_001959360.1. NC_010831.1.

Genome annotation databases

EnsemblBacteriaiACE03879; ACE03879; Cphamn1_0934.
GeneIDi6374601.
KEGGicpb:Cphamn1_0934.
PATRICi21384016. VBIChlPha121022_1015.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001101 Genomic DNA. Translation: ACE03879.1 .
RefSeqi YP_001959360.1. NC_010831.1.

3D structure databases

ProteinModelPortali B3EPK1.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 331678.Cphamn1_0934.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ACE03879 ; ACE03879 ; Cphamn1_0934 .
GeneIDi 6374601.
KEGGi cpb:Cphamn1_0934.
PATRICi 21384016. VBIChlPha121022_1015.

Phylogenomic databases

eggNOGi COG0373.
HOGENOMi HOG000109651.
KOi K02492.
OMAi SETNISC.
OrthoDBi EOG6MWNBM.

Enzyme and pathway databases

UniPathwayi UPA00251 ; UER00316 .
UPA00668 .
BioCyci CPHA331678:GHME-959-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: BS1.

Entry informationi

Entry nameiHEM1_CHLPB
AccessioniPrimary (citable) accession number: B3EPK1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: July 22, 2008
Last modified: October 1, 2014
This is version 48 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, Reference proteome

Documents

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

External Data

Dasty 3