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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Synechococcus sp. (strain CC9605)
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 (hemA)
  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.

Pathway:ichlorophyll biosynthesis

This protein is involved in the pathway chlorophyll biosynthesis, which is part of Porphyrin-containing compound metabolism.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway chlorophyll biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei50 – 501NucleophileUniRule annotation
Sitei99 – 991Important for activityUniRule annotation
Binding sitei109 – 1091SubstrateUniRule annotation
Binding sitei120 – 1201SubstrateUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi198 – 2036NADPUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Chlorophyll biosynthesis, Porphyrin biosynthesis

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciSSP110662:GJ7R-1290-MONOMER.
UniPathwayiUPA00251; UER00316.
UPA00668.

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:Syncc9605_1254
OrganismiSynechococcus sp. (strain CC9605)
Taxonomic identifieri110662 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechococcus
ProteomesiUP000002711 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 432432Glutamyl-tRNA reductasePRO_1000004715Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi110662.Syncc9605_1254.

Structurei

3D structure databases

ProteinModelPortaliQ3AK73.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 524Substrate bindingUniRule annotation
Regioni114 – 1163Substrate 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.
OMAiNHCPNIK.
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.

Q3AK73-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MHISVVGLSH RTAPVEIRER LSIPEQTMET SLQSLRGNEQ VLEASILSTC
60 70 80 90 100
NRLEIYTLVR NPDLGVSAVS DFLSSHSGLE TGELTPHLFS YHHEDAVDHL
110 120 130 140 150
MRVAAGLDSL VLGEGQILSQ VKKMMRLGQE HKSLGPILNR LLTQAVTTGK
160 170 180 190 200
RVRSETNLGT GAVSISSAAV ELAQLKLGQS RGLDHLVTLE SEQIAVVGAG
210 220 230 240 250
RMSRLLLQHL QAKGASGVVL LNRTVERAEQ LSADFPDLPV QCRPLTDLDQ
260 270 280 290 300
YLSTCSLMFT STAADDPIID AARLAPLNRR SKLRLIDIGV PRNIAADAAD
310 320 330 340 350
VNGVESHDVD DLQEVVARNQ EARQAMAREA EQLLQQEAQQ FLEWWDSLEA
360 370 380 390 400
VPTINQLRSS MESIRTEELQ KALSRMGPDF SARERKVVEA LSKGIINKIL
410 420 430
HTPVTQLRAP QTRQDRQQAL RIVERLFDLE AS
Length:432
Mass (Da):47,674
Last modified:November 22, 2005 - v1
Checksum:i10E055F2AE59F9C4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000110 Genomic DNA. Translation: ABB35009.1.
RefSeqiWP_011364228.1. NC_007516.1.

Genome annotation databases

EnsemblBacteriaiABB35009; ABB35009; Syncc9605_1254.
KEGGisyd:Syncc9605_1254.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000110 Genomic DNA. Translation: ABB35009.1.
RefSeqiWP_011364228.1. NC_007516.1.

3D structure databases

ProteinModelPortaliQ3AK73.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi110662.Syncc9605_1254.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABB35009; ABB35009; Syncc9605_1254.
KEGGisyd:Syncc9605_1254.

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109651.
KOiK02492.
OMAiNHCPNIK.
OrthoDBiEOG6MWNBM.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00316.
UPA00668.
BioCyciSSP110662:GJ7R-1290-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. "Complete sequence of Synechococcus sp. CC9605."
    US DOE Joint Genome Institute
    Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Schmutz J., Martinez M., Larimer F., Land M., Kyrpides N., Ivanova N., Richardson P.
    Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: CC9605.

Entry informationi

Entry nameiHEM1_SYNSC
AccessioniPrimary (citable) accession number: Q3AK73
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: November 22, 2005
Last modified: July 22, 2015
This is version 76 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

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.