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B7K1R5

- HEM1_CYAP8

UniProt

B7K1R5 - HEM1_CYAP8

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Protein

Glutamyl-tRNA reductase

Gene

hemA

Organism
Cyanothece sp. (strain PCC 8801) (Synechococcus sp. (strain PCC 8801 / RF-1))
Status
Reviewed - 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

BioCyciCSP41431:GHLK-3687-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:PCC8801_3645
OrganismiCyanothece sp. (strain PCC 8801) (Synechococcus sp. (strain PCC 8801 / RF-1))
Taxonomic identifieri41431 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesCyanothece
ProteomesiUP000008204: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 428428Glutamyl-tRNA reductasePRO_1000190517Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi41431.PCC8801_3645.

Structurei

3D structure databases

ProteinModelPortaliB7K1R5.
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.
OMAiLAHKLTN.
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.

B7K1R5-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MNIAVVGLSH KTAPVEVREK LSIQEAKLEE ALTHLRGYPH IEEVAIISTC
60 70 80 90 100
NRLEIYAVVS DTEKGVVEIT QFLSETGHLP LNYLRRYLFT LLHQDAVRHL
110 120 130 140 150
LRVAAGLESL VLGEGQILAQ VKTTHKLGQK YKGIGRLLDR LFKQAITAGK
160 170 180 190 200
RVRSETNIGT GAVSISSAAV ELAQTKAEDL ANRRISIIGA GKMARLLVQH
210 220 230 240 250
LLSKGATDIT IVNRSHHRAQ ELAAQFPQAS LNLQLLPEMM QVVASSHIVF
260 270 280 290 300
TSTAATEPIL HRENLTAALD PNHALMLFDI SVPRNVASDV HGMEGIESYN
310 320 330 340 350
VDDLKAVVAQ NYESRRQMAQ EAEGLLEEEV EAFDLWWRSL ETVPTISCLR
360 370 380 390 400
TKVETIREQE LEKALSRLGT EFAEKHQEVI EALTRGIVNK ILHEPMVQLR
410 420
AQQDIEARKR CLESLKMLFD LEIEEQFG
Length:428
Mass (Da):47,813
Last modified:February 10, 2009 - v1
Checksum:i66CC9B6E7D88364B
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001287 Genomic DNA. Translation: ACK67607.1.
RefSeqiYP_002373763.1. NC_011726.1.

Genome annotation databases

EnsemblBacteriaiACK67607; ACK67607; PCC8801_3645.
GeneIDi7105117.
KEGGicyp:PCC8801_3645.
PATRICi21579651. VBICyaSp125535_3829.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001287 Genomic DNA. Translation: ACK67607.1 .
RefSeqi YP_002373763.1. NC_011726.1.

3D structure databases

ProteinModelPortali B7K1R5.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 41431.PCC8801_3645.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ACK67607 ; ACK67607 ; PCC8801_3645 .
GeneIDi 7105117.
KEGGi cyp:PCC8801_3645.
PATRICi 21579651. VBICyaSp125535_3829.

Phylogenomic databases

eggNOGi COG0373.
HOGENOMi HOG000109651.
KOi K02492.
OMAi LAHKLTN.
OrthoDBi EOG6MWNBM.

Enzyme and pathway databases

UniPathwayi UPA00251 ; UER00316 .
UPA00668 .
BioCyci CSP41431:GHLK-3687-MONOMER.

Family and domain databases

Gene3Di 3.40.50.720. 1 hit.
HAMAPi MF_00087. Glu_tRNA_reductase.
InterProi IPR000343. 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 ]
Pfami PF00745. GlutR_dimer. 1 hit.
PF05201. GlutR_N. 1 hit.
PF01488. Shikimate_DH. 1 hit.
[Graphical view ]
PIRSFi PIRSF000445. 4pyrrol_synth_GluRdtase. 1 hit.
SUPFAMi SSF69075. SSF69075. 1 hit.
SSF69742. SSF69742. 1 hit.
TIGRFAMsi TIGR01035. hemA. 1 hit.
PROSITEi PS00747. GLUTR. 1 hit.
[Graphical view ]
ProtoNeti Search...

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 8801.

Entry informationi

Entry nameiHEM1_CYAP8
AccessioniPrimary (citable) accession number: B7K1R5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: February 10, 2009
Last modified: October 1, 2014
This is version 47 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