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Q980U7 (HEM1_SULSO) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 89. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Glutamyl-tRNA reductase

Short name=GluTR
EC=1.2.1.70
Gene names
Name:hemA
Ordered Locus Names:SSO0180
OrganismSulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2) [Reference proteome] [HAMAP]
Taxonomic identifier273057 [NCBI]
Taxonomic lineageArchaeaCrenarchaeotaThermoproteiSulfolobalesSulfolobaceaeSulfolobus

Protein attributes

Sequence length426 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA) By similarity. HAMAP-Rule MF_00087

Catalytic activity

L-glutamate 1-semialdehyde + NADP+ + tRNA(Glu) = L-glutamyl-tRNA(Glu) + NADPH. HAMAP-Rule MF_00087

Pathway

Porphyrin-containing compound metabolism; protoporphyrin-IX biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2. HAMAP-Rule MF_00087

Subunit structure

Homodimer By similarity. HAMAP-Rule MF_00087

Domain

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. HAMAP-Rule MF_00087

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.

Sequence similarities

Belongs to the glutamyl-tRNA reductase family.

Ontologies

Keywords
   Biological processPorphyrin biosynthesis
   LigandNADP
   Molecular functionOxidoreductase
   Technical termComplete proteome
Reference proteome
Gene Ontology (GO)
   Biological_processprotoporphyrinogen IX biosynthetic process

Inferred from electronic annotation. Source: UniProtKB-UniPathway

   Molecular_functionNADP binding

Inferred from electronic annotation. Source: InterPro

glutamyl-tRNA reductase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 426426Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_0000114110

Regions

Nucleotide binding190 – 1956NADP By similarity
Region52 – 554Substrate binding By similarity
Region115 – 1173Substrate binding By similarity

Sites

Active site531Nucleophile By similarity
Binding site1101Substrate By similarity
Binding site1211Substrate By similarity
Site1001Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
Q980U7 [UniParc].

Last modified October 1, 2001. Version 1.
Checksum: 7A7CE6CAF76C54EF

FASTA42649,422
        10         20         30         40         50         60 
MSKDEELLQN YCSILFTYKT IGISNLHLYY FRETEIKSLK QLINAEFAIL QTCNRVEIYL 

        70         80         90        100        110        120 
YSDTNTLKEV NKIIQYLNNI HNEPIGNQAR VLCGKDAAKH LFLVASGADS LSIGEYEILS 

       130        140        150        160        170        180 
QIRSTIDMFK KLGFSGKYLQ IFFERAIKVG RKVREETSIS KGKVGIYSLA IDEAKKRFND 

       190        200        210        220        230        240 
FYDRRILVIG AGEMAQKITS MLHNEGAKDV TIMNRTIEKA KQLALKFGYN YEKLDLDKLG 

       250        260        270        280        290        300 
NFDVAFISIY HENLRLENKW NTLIVDITVP PLFTGNNVIT LEELERISNL NFKAREEELA 

       310        320        330        340        350        360 
KINKLVEDGI NELLYDYKKE IYTEFMSKIM KRIETIRENE ILRAYKELEK LGINDQQAKE 

       370        380        390        400        410        420 
ILDLMTRSII KKSFQPLFDN IRSLIFNGEN SINYINFLID IFKDGNISGF ETEKIKEKQV 


SERSSI 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AE006641 Genomic DNA. Translation: AAK40526.1.
PIRG90158.
RefSeqNP_341736.1. NC_002754.1.

3D structure databases

ProteinModelPortalQ980U7.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING273057.SSO0180.

Protocols and materials databases

DNASU1455336.
StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaAAK40526; AAK40526; SSO0180.
GeneID1455336.
KEGGsso:SSO0180.

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000107850.
KOK02492.
OMAEHMIEDE.

Enzyme and pathway databases

BioCycSSOL273057:GCH2-169-MONOMER.
UniPathwayUPA00251; UER00316.

Family and domain databases

Gene3D3.40.50.720. 1 hit.
HAMAPMF_00087. Glu_tRNA_reductase.
InterProIPR000343. 4pyrrol_synth_GluRdtase.
IPR015896. 4pyrrol_synth_GluRdtase_dimer.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR016040. NAD(P)-bd_dom.
IPR018214. Pyrrol_synth_GluRdtase_CS.
IPR006151. Shikm_DH/Glu-tRNA_Rdtase.
[Graphical view]
PfamPF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view]
PIRSFPIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMSSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
PROSITEPS00747. GLUTR. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameHEM1_SULSO
AccessionPrimary (citable) accession number: Q980U7
Entry history
Integrated into UniProtKB/Swiss-Prot: April 3, 2002
Last sequence update: October 1, 2001
Last modified: May 14, 2014
This is version 89 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways