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B0BAB7 (HEM1_CHLTB) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 44. 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:CTLon_0031
OrganismChlamydia trachomatis serovar L2b (strain UCH-1/proctitis) [Complete proteome] [HAMAP]
Taxonomic identifier471473 [NCBI]
Taxonomic lineageBacteriaChlamydiaeChlamydialesChlamydiaceaeChlamydia/Chlamydophila groupChlamydia

Protein attributes

Sequence length335 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
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 – 335335Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_1000093126

Regions

Nucleotide binding189 – 1946NADP By similarity
Region60 – 634Substrate binding By similarity
Region115 – 1173Substrate binding By similarity

Sites

Active site611Nucleophile By similarity
Binding site1101Substrate By similarity
Binding site1211Substrate By similarity
Site1001Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
B0BAB7 [UniParc].

Last modified February 26, 2008. Version 1.
Checksum: 3BAE3959FB93A1A4

FASTA33538,868
        10         20         30         40         50         60 
MVREGEERIG NRVLLGVIGV SYRETTLQQR EQVLHILQQA QGSFRPEVFQ EERDYVLLAT 

        70         80         90        100        110        120 
CHRVELYSVA PAELFDSLAQ EIKLLGVSPY FYRNQDCFAH LFCVAGGLDS LVLGETEIQG 

       130        140        150        160        170        180 
QVKRAYLQAA REQKLSFALH FLFQKALKEG KVFRAKGGAP YAAITIPILV DQELRRRQID 

       190        200        210        220        230        240 
KKASLLFIGY SEINRSVAYH LRRQGFSCIT FCSRQQLPTL SMRQVVREEL CFQDPYRVVF 

       250        260        270        280        290        300 
LGSLELQYAL PHSLWESIWD IPDRIVFDFA VPRALPSHTV FPHRYMDMDQ ISDWLREHRK 

       310        320        330 
EVNSAHLDSL REVAYRYWNS LNQRLERHDC VGANA 

« Hide

References

[1]"Chlamydia trachomatis: genome sequence analysis of lymphogranuloma venereum isolates."
Thomson N.R., Holden M.T.G., Carder C., Lennard N., Lockey S.J., Marsh P., Skipp P., O'Connor C.D., Goodhead I., Norbertzcak H., Harris B., Ormond D., Rance R., Quail M.A., Parkhill J., Stephens R.S., Clarke I.N.
Genome Res. 18:161-171(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: UCH-1/proctitis.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AM884177 Genomic DNA. Translation: CAP06429.1.
RefSeqYP_001653134.1. NC_010280.2.

3D structure databases

ProteinModelPortalB0BAB7.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING471473.CTLon_0031.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAP06429; CAP06429; CTLon_0031.
GeneID5859699.
KEGGctl:CTLon_0031.
PATRIC20381557. VBIChlTra68089_0035.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000110628.
KOK02492.
OMACHRAELY.
OrthoDBEOG6MWNBM.

Enzyme and pathway databases

BioCycCTRA471473:GHJK-33-MONOMER.
UniPathwayUPA00251; UER00316.

Family and domain databases

HAMAPMF_00087. Glu_tRNA_reductase.
InterProIPR000343. 4pyrrol_synth_GluRdtase.
IPR015895. 4pyrrol_synth_GluRdtase_N.
IPR018214. Pyrrol_synth_GluRdtase_CS.
[Graphical view]
PfamPF05201. GlutR_N. 1 hit.
[Graphical view]
SUPFAMSSF69742. SSF69742. 1 hit.
PROSITEPS00747. GLUTR. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameHEM1_CHLTB
AccessionPrimary (citable) accession number: B0BAB7
Entry history
Integrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: February 26, 2008
Last modified: May 14, 2014
This is version 44 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