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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Cyanothece sp. (strain PCC 7424) (Synechococcus sp. (strain ATCC 29155))
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 sitei50 – 501NucleophileUniRule annotation
Sitei99 – 991Important for activityUniRule annotation
Binding sitei109 – 1091SubstrateUniRule annotation
Binding sitei120 – 1201SubstrateUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi189 – 1946NADPUniRule annotation

GO - Molecular functioni

  1. glutamyl-tRNA reductase activity Source: UniProtKB-HAMAP
  2. NADP binding Source: InterPro

GO - Biological processi

  1. chlorophyll biosynthetic process Source: UniProtKB-HAMAP
  2. protoporphyrinogen IX biosynthetic process Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Chlorophyll biosynthesis, Porphyrin biosynthesis

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciCSP65393:GJP7-5235-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:PCC7424_5179
OrganismiCyanothece sp. (strain PCC 7424) (Synechococcus sp. (strain ATCC 29155))
Taxonomic identifieri65393 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesCyanothece
ProteomesiUP000002384 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 428428Glutamyl-tRNA reductasePRO_1000190515Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi65393.PCC7424_5179.

Structurei

3D structure databases

ProteinModelPortaliB7KI42.
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.
OMAiGAHSISM.
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.

B7KI42-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNIAVVGLSH KTAPVEVREK LSIPEAKLEE VLAHLKSYPH IQEVAILSTC
60 70 80 90 100
NRLEIYAVVT ETEQGIIEIS QFLSEKGHIP LHHLRRHLFI LLHQDAVRHL
110 120 130 140 150
MRVAAGLESL VLGEGQILAQ VKNTHKLAQK YGGIGRLLDR LFKQAMTAGK
160 170 180 190 200
RVRSETSIGT GAVSISSAAV ELAQMKVIDI CVCRVTIIGA GKMSRLLVQH
210 220 230 240 250
LLSKGVSKIA IVNRSLRRAQ ELAGLFPEAQ LQLHPLEEMI NAVSVSDIVF
260 270 280 290 300
TSTGATEPIL NRSNLESIIA VNQSLMLVDI SVPRNVDADV QQLEQIQSYN
310 320 330 340 350
VDDLKAVVAA NQESRRRLAQ EAEGLLEEEV ESFELWWRSL DTVPTISCLR
360 370 380 390 400
DKVETIREQE LEKALSRLGT EFAEKHQEVI EALTRGIVNK ILHEPMVQLR
410 420
AQQDIEARKR CLQSLQMLFD LDIEEQYT
Length:428
Mass (Da):47,869
Last modified:February 10, 2009 - v1
Checksum:iCABFD48D14A1FA70
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001291 Genomic DNA. Translation: ACK73529.1.
RefSeqiWP_015957108.1. NC_011729.1.
YP_002380397.1. NC_011729.1.

Genome annotation databases

EnsemblBacteriaiACK73529; ACK73529; PCC7424_5179.
KEGGicyc:PCC7424_5179.
PATRICi21559398. VBICyaSp136448_5290.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001291 Genomic DNA. Translation: ACK73529.1.
RefSeqiWP_015957108.1. NC_011729.1.
YP_002380397.1. NC_011729.1.

3D structure databases

ProteinModelPortaliB7KI42.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi65393.PCC7424_5179.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACK73529; ACK73529; PCC7424_5179.
KEGGicyc:PCC7424_5179.
PATRICi21559398. VBICyaSp136448_5290.

Phylogenomic databases

eggNOGiCOG0373.
HOGENOMiHOG000109651.
KOiK02492.
OMAiGAHSISM.
OrthoDBiEOG6MWNBM.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00316.
UPA00668.
BioCyciCSP65393:GJP7-5235-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. "Novel metabolic attributes of the genus Cyanothece, comprising a group of unicellular nitrogen-fixing Cyanobacteria."
    Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H., Sherman L.A., Pakrasi H.B.
    MBio 2:E214-E214(2011) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: PCC 7424.

Entry informationi

Entry nameiHEM1_CYAP7
AccessioniPrimary (citable) accession number: B7KI42
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: February 10, 2009
Last modified: April 1, 2015
This is version 49 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.