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A1KSI5 (HEM1_NEIMF) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 55. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Glutamyl-tRNA reductase
Short name=GluTR
EC=1.2.1.70
Gene names
Name:hemA
Ordered Locus Names:NMC0518
OrganismNeisseria meningitidis serogroup C / serotype 2a (strain ATCC 700532 / FAM18) [Complete proteome] [HAMAP]
Taxonomic identifier272831 [NCBI]
Taxonomic lineageBacteria › Proteobacteria › Betaproteobacteria › Neisseriales › Neisseriaceae › Neisseria ›

Protein attributes

Sequence length415 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 metabolism; protoporphyrin-IX biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2. HAMAP-Rule MF_00087

Subunit structure

Homodimer By similarity.

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. HAMAP-Rule MF_00087

Sequence similarities

Belongs to the glutamyl-tRNA reductase family.

Ontologies

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

Inferred from electronic annotation. Source: HAMAP

protoporphyrinogen 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: HAMAP

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 415415Glutamyl-tRNA reductase HAMAP-Rule MF_00087
PRO_1000004655

Regions

Nucleotide binding184 – 1896NADP By similarity
Region49 – 524Substrate binding By similarity
Region109 – 1113Substrate binding By similarity

Sites

Active site501Nucleophile By similarity
Binding site1041Substrate By similarity
Binding site1151Substrate By similarity
Site941Important for activity By similarity

Sequences

Sequence LengthMass (Da)Tools
A1KSI5 [UniParc].

Last modified February 6, 2007. Version 1.
Checksum: C17639CBD6791ECB

FASTA41545,472
        10         20         30         40         50         60 
MQLTAVGLNH QTAPLSIREK LAFAAACLPE AVRNLARSNA ATEAVILSTC NRTELYCVGD 

        70         80         90        100        110        120 
SEEIIRWLAD YHSLPIEEIS PYLYTLGMQE TVRHAFRVAC GLDSMVLGEP QILGQIKDAV 

       130        140        150        160        170        180 
RVAQEQESMG KKLNALFQKT FSVAKEVRTD TAVGENSVSM ASASVKLAEQ IFPDIGDLNV 

       190        200        210        220        230        240 
LFIGAGEMIE LVATYFAAKS PRLMTVANRT LARAQELCDK LGVNAEPCLL SDLPAILHEY 

       250        260        270        280        290        300 
DVVVSSTASQ LPIVGKGMVE RALKQRQSMP LFMLDLAVPR DIEAEVGDLN DAYLYTVDDM 

       310        320        330        340        350        360 
VNIVQSGKEA RQKAAAAAET LVSEKVAEFV RQQQGRQSVP LIRALRDEGE KARKQVLENA 

       370        380        390        400        410 
MKQLAKGATA EEVLERLSIQ LTNKLLHSPT QTLNKAGEED KDLVHAVAQI YHLDK

« Hide

References

[1]"Meningococcal genetic variation mechanisms viewed through comparative analysis of serogroup C strain FAM18."
Bentley S.D., Vernikos G.S., Snyder L.A.S., Churcher C., Arrowsmith C., Chillingworth T., Cronin A., Davis P.H., Holroyd N.E., Jagels K., Maddison M., Moule S., Rabbinowitsch E., Sharp S., Unwin L., Whitehead S., Quail M.A., Achtman M. expand/collapse author list , Barrell B.G., Saunders N.J., Parkhill J.
PLoS Genet. 3:230-240(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 700532 / FAM18.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		AM421808 Genomic DNA. Translation: CAM09815.1.
RefSeqYP_974616.1. NC_008767.1.

3D structure databases

ProteinModelPortalA1KSI5.
ModBaseSearch...

Protein-protein interaction databases

STRING272831.NMC0518.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAM09815; CAM09815; NMC0518.
GeneID4676633.
KEGGnmc:NMC0518.
PATRIC20350759. VBINeiMen17609_0637.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0373.
HOGENOMHOG000109650.
KOK02492.
OMAGPILNRL.
ProtClustDBPRK00045.

Enzyme and pathway databases

BioCycNMEN272831:GJDX-506-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. 4pyrrol_synth_GluRdtase_C. 1 hit.
SSF69742. GlutR. 1 hit.
TIGRFAMsTIGR01035. hemA. 1 hit.
PROSITEPS00747. GLUTR. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameHEM1_NEIMF
AccessionPrimary (citable) accession number: A1KSI5
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: February 6, 2007
Last modified: May 1, 2013
This is version 55 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

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