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Protein

Glutamyl-tRNA reductase 2

Gene

hemA2

Organism
Anaeromyxobacter dehalogenans (strain 2CP-C)
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:iprotoporphyrin-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 1 (hemA1), Glutamyl-tRNA reductase 2 (hemA2)
  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 sitei54 – 541NucleophileUniRule 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

BioCyciADEH290397:GI2Z-2524-MONOMER.
UniPathwayiUPA00251; UER00316.

Names & Taxonomyi

Protein namesi
Recommended name:
Glutamyl-tRNA reductase 2UniRule annotation (EC:1.2.1.70UniRule annotation)
Short name:
GluTR 2UniRule annotation
Gene namesi
Name:hemA2UniRule annotation
Ordered Locus Names:Adeh_2493
OrganismiAnaeromyxobacter dehalogenans (strain 2CP-C)
Taxonomic identifieri290397 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaDeltaproteobacteriaMyxococcalesCystobacterineaeAnaeromyxobacteraceaeAnaeromyxobacter
ProteomesiUP000001935 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 446446Glutamyl-tRNA reductase 2PRO_0000335006Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi290397.Adeh_2493.

Structurei

3D structure databases

ProteinModelPortaliQ2IKT3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni53 – 564Substrate 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.
HOGENOMiHOG000109651.
KOiK02492.
OMAiCELKAME.
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.

Q2IKT3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTGDRRLFLV GLSHKSAPID VRERVALTGD ALKAALCELK AMEGVTEALV
60 70 80 90 100
VSTCNRVEVF VHSDRPDAAR RFFTERSPAA ADHLYAKDGV EAVRHLFRVA
110 120 130 140 150
SSLDSMVVGE QQILGQVKEA YGLASAASAA GSYFSRLCNR AFATAKRVRT
160 170 180 190 200
ETEIGRGATS MSQVAVELVE KIFGRLEGRA ILLVGAGKMG ALSAKALAVL
210 220 230 240 250
GADRILVTNR SPERGLALAA QVSGSYRGWE ELQRLLGEAD VVIVSTGAPT
260 270 280 290 300
YVVTRESMHA AMKARRRRSI CLIDLAVPRN VDPACAELSD VYAYDVDDME
310 320 330 340 350
RVVATSKQAR QGEAIRAEAI VEAEVMAFAK EREARAALPV LAQLRRHAER
360 370 380 390 400
IARAEAERTL AQVGGKLDDK GRKSVEAMAQ AIVNKLLHGP TSRLKEAASS
410 420 430 440
GDSALPGAAA ELFGIENETA GGERREGGAE GAAAAPGAGP VRSQGT
Length:446
Mass (Da):47,370
Last modified:March 7, 2006 - v1
Checksum:iB9DFB64DC19CB09C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000251 Genomic DNA. Translation: ABC82263.1.
RefSeqiWP_011421545.1. NC_007760.1.

Genome annotation databases

EnsemblBacteriaiABC82263; ABC82263; Adeh_2493.
KEGGiade:Adeh_2493.
PATRICi20921161. VBIAnaDeh31384_2558.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000251 Genomic DNA. Translation: ABC82263.1.
RefSeqiWP_011421545.1. NC_007760.1.

3D structure databases

ProteinModelPortaliQ2IKT3.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi290397.Adeh_2493.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABC82263; ABC82263; Adeh_2493.
KEGGiade:Adeh_2493.
PATRICi20921161. VBIAnaDeh31384_2558.

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109651.
KOiK02492.
OMAiCELKAME.
OrthoDBiEOG6MWNBM.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00316.
BioCyciADEH290397:GI2Z-2524-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.
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]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 2CP-C.

Entry informationi

Entry nameiHEM12_ANADE
AccessioniPrimary (citable) accession number: Q2IKT3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: March 7, 2006
Last modified: July 22, 2015
This is version 84 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

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.