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A2CAB8

- HEM1_PROM3

UniProt

A2CAB8 - HEM1_PROM3

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Protein
Glutamyl-tRNA reductase
Gene
hemA, P9303_16841
Organism
Prochlorococcus marinus (strain MIT 9303)
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) By similarity.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 – 501Nucleophile By similarity
Sitei99 – 991Important for activity By similarity
Binding sitei109 – 1091Substrate By similarity
Binding sitei120 – 1201Substrate By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi198 – 2036NADP By similarity

GO - Molecular functioni

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

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

BioCyciPMAR59922:GH54-1777-MONOMER.
UniPathwayiUPA00251; UER00316.
UPA00668.

Names & Taxonomyi

Protein namesi
Recommended name:
Glutamyl-tRNA reductase (EC:1.2.1.70)
Short name:
GluTR
Gene namesi
Name:hemA
Ordered Locus Names:P9303_16841
OrganismiProchlorococcus marinus (strain MIT 9303)
Taxonomic identifieri59922 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaProchloralesProchlorococcaceaeProchlorococcus
ProteomesiUP000002274: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 436436Glutamyl-tRNA reductaseUniRule annotation
PRO_1000004663Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi59922.P9303_16841.

Structurei

3D structure databases

ProteinModelPortaliA2CAB8.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 524Substrate binding By similarity
Regioni114 – 1163Substrate binding By similarity

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 By similarity.UniRule annotation

Sequence similaritiesi

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.

A2CAB8-1 [UniParc]FASTAAdd to Basket

« Hide

MHIAVVGLSH RTAPVEIREK LSIPEQTMET SLQTLRGNDQ VLEVSILSTC    50
NRLEIYTLVR HPERGISAIS DFLGQHSGLA AEDLSPHLFN FHHDEAVAHL 100
MRVAAGLDSL VLGEGQILSQ VKKMVRLGQE HKSMGPILNR LLTQAVSTGK 150
RVRSETNLGT GAVSISSAAV ELAQLKLGQA QGEDQLMTLE SELVAVVGAG 200
RMSRLLLQHL QAKGCSGVML LNRTRQRAED LSADFPELPV ECRPLDDLNH 250
CLSTCSLVFT STAADDPIVD ASLLKQLKRR SFLRLIDIGV PRNIASDVVD 300
LPGVESHDVD DLHEVVSRNQ EARQQMAKEA EVVLQEETRL FLEWWDSLEA 350
VPTINRLRAT LEAIRAEELQ KALSRMGPDF SARERKVVEA LSKGIINKIL 400
HTPVTQLRAP QARQERQQAL RVVACLFELD PPLEDG 436
Length:436
Mass (Da):48,166
Last modified:February 20, 2007 - v1
Checksum:iF9B7693943A4BB65
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000554 Genomic DNA. Translation: ABM78428.1.
RefSeqiWP_011826316.1. NC_008820.1.
YP_001017693.1. NC_008820.1.

Genome annotation databases

EnsemblBacteriaiABM78428; ABM78428; P9303_16841.
GeneIDi4777406.
KEGGipmf:P9303_16841.
PATRICi23000852. VBIProMar17757_1736.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000554 Genomic DNA. Translation: ABM78428.1 .
RefSeqi WP_011826316.1. NC_008820.1.
YP_001017693.1. NC_008820.1.

3D structure databases

ProteinModelPortali A2CAB8.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 59922.P9303_16841.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABM78428 ; ABM78428 ; P9303_16841 .
GeneIDi 4777406.
KEGGi pmf:P9303_16841.
PATRICi 23000852. VBIProMar17757_1736.

Phylogenomic databases

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

Enzyme and pathway databases

UniPathwayi UPA00251 ; UER00316 .
UPA00668 .
BioCyci PMAR59922:GH54-1777-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: MIT 9303.

Entry informationi

Entry nameiHEM1_PROM3
AccessioniPrimary (citable) accession number: A2CAB8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: February 20, 2007
Last modified: September 3, 2014
This is version 59 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 By similarity.

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

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