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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165)
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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei47 – 471NucleophileUniRule annotation
Sitei78 – 781Important for activityUniRule annotation
Binding sitei88 – 881SubstrateUniRule annotation
Binding sitei99 – 991SubstrateUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi164 – 1696NADPUniRule annotation

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

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:Ta0536
OrganismiThermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165)
Taxonomic identifieri273075 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaThermoplasmataThermoplasmatalesThermoplasmataceaeThermoplasma
ProteomesiUP000001024 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 409409Glutamyl-tRNA reductasePRO_0000114112Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi273075.Ta0536.

Structurei

3D structure databases

ProteinModelPortaliQ9HKR0.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni46 – 494Substrate bindingUniRule annotation
Regioni93 – 953Substrate 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.
HOGENOMiHOG000112884.
KOiK02492.
OMAiMFVLHTC.

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.

Q9HKR0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQILTLISWD FKRNNNFFNQ AVLNPYEYWA DILEKNGISR YVILLTCNRV
60 70 80 90 100
EIYLRAGFPE DLEAMKPNVL HDEEAIKHLM EVSSGLDSMS LGENEILKQV
110 120 130 140 150
KEAYELSVRN GKVDKVLSLI FQKAIFVGKK VRSETEISRG KVSVPSIVYD
160 170 180 190 200
ILSSRVVQKV LIIGNGMIAG EIAPYLSGKF EVTIAGRNID HVKDLASKYN
210 220 230 240 250
YSYTTINDLH ELIMRNDAII SATSSKTPII RREEMVEGKL YIDLGNPRNI
260 270 280 290 300
EDKPGADIIT IDDIYSVSNR NGSARMESVD EARRIIEIEM ASLMNKIKDV
310 320 330 340 350
MIDEIFADFY KFAVVVQKME IEKFSRMHPE IPASDVEAFA HSMINKVMNI
360 370 380 390 400
PVMTLKSVAR SQSNQDFSRI FSKFYDNFSD LVSAALQSYE GRQDTQSLRD

RTRRLLQRS
Length:409
Mass (Da):46,682
Last modified:March 1, 2001 - v1
Checksum:iEBAA2D6ABCD64EBF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL445064 Genomic DNA. Translation: CAC11676.1.
RefSeqiNP_394011.1. NC_002578.1.
WP_010900962.1. NC_002578.1.

Genome annotation databases

GeneIDi1456132.
KEGGitac:Ta0536.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL445064 Genomic DNA. Translation: CAC11676.1.
RefSeqiNP_394011.1. NC_002578.1.
WP_010900962.1. NC_002578.1.

3D structure databases

ProteinModelPortaliQ9HKR0.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi273075.Ta0536.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi1456132.
KEGGitac:Ta0536.

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000112884.
KOiK02492.
OMAiMFVLHTC.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00316.

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. "The genome sequence of the thermoacidophilic scavenger Thermoplasma acidophilum."
    Ruepp A., Graml W., Santos-Martinez M.-L., Koretke K.K., Volker C., Mewes H.-W., Frishman D., Stocker S., Lupas A.N., Baumeister W.
    Nature 407:508-513(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165.

Entry informationi

Entry nameiHEM1_THEAC
AccessioniPrimary (citable) accession number: Q9HKR0
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 27, 2001
Last sequence update: March 1, 2001
Last modified: April 1, 2015
This is version 96 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.