ID HEM1_BURM9 Reviewed; 434 AA.
AC A2RYL1;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 06-MAR-2007, sequence version 1.
DT 27-MAR-2024, entry version 93.
DE RecName: Full=Glutamyl-tRNA reductase {ECO:0000255|HAMAP-Rule:MF_00087};
DE Short=GluTR {ECO:0000255|HAMAP-Rule:MF_00087};
DE EC=1.2.1.70 {ECO:0000255|HAMAP-Rule:MF_00087};
GN Name=hemA {ECO:0000255|HAMAP-Rule:MF_00087};
GN OrderedLocusNames=BMA10229_0971;
OS Burkholderia mallei (strain NCTC 10229).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; pseudomallei group.
OX NCBI_TaxID=412022;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCTC 10229;
RX PubMed=20333227; DOI=10.1093/gbe/evq003;
RA Losada L., Ronning C.M., DeShazer D., Woods D., Fedorova N., Kim H.S.,
RA Shabalina S.A., Pearson T.R., Brinkac L., Tan P., Nandi T., Crabtree J.,
RA Badger J., Beckstrom-Sternberg S., Saqib M., Schutzer S.E., Keim P.,
RA Nierman W.C.;
RT "Continuing evolution of Burkholderia mallei through genome reduction and
RT large-scale rearrangements.";
RL Genome Biol. Evol. 2:102-116(2010).
CC -!- FUNCTION: Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu)
CC to glutamate 1-semialdehyde (GSA). {ECO:0000255|HAMAP-Rule:MF_00087}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(S)-4-amino-5-oxopentanoate + NADP(+) + tRNA(Glu) = H(+) + L-
CC glutamyl-tRNA(Glu) + NADPH; Xref=Rhea:RHEA:12344, Rhea:RHEA-
CC COMP:9663, Rhea:RHEA-COMP:9680, ChEBI:CHEBI:15378, ChEBI:CHEBI:57501,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:78442,
CC ChEBI:CHEBI:78520; EC=1.2.1.70; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00087};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2.
CC {ECO:0000255|HAMAP-Rule:MF_00087}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00087}.
CC -!- DOMAIN: Possesses an unusual extended V-shaped dimeric structure with
CC each monomer consisting of three distinct domains arranged along a
CC curved 'spinal' alpha-helix. The N-terminal catalytic domain
CC specifically recognizes the glutamate moiety of the substrate. The
CC second domain is the NADPH-binding domain, and the third C-terminal
CC domain is responsible for dimerization. {ECO:0000255|HAMAP-
CC Rule:MF_00087}.
CC -!- MISCELLANEOUS: During catalysis, the active site Cys acts as a
CC nucleophile attacking the alpha-carbonyl group of tRNA-bound glutamate
CC with the formation of a thioester intermediate between enzyme and
CC glutamate, and the concomitant release of tRNA(Glu). The thioester
CC intermediate is finally reduced by direct hydride transfer from NADPH,
CC to form the product GSA. {ECO:0000255|HAMAP-Rule:MF_00087}.
CC -!- SIMILARITY: Belongs to the glutamyl-tRNA reductase family.
CC {ECO:0000255|HAMAP-Rule:MF_00087}.
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DR EMBL; CP000545; ABN00173.1; -; Genomic_DNA.
DR AlphaFoldDB; A2RYL1; -.
DR SMR; A2RYL1; -.
DR KEGG; bml:BMA10229_0971; -.
DR HOGENOM; CLU_035113_2_2_4; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000002283; Chromosome II.
DR GO; GO:0008883; F:glutamyl-tRNA reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR GO; GO:0006782; P:protoporphyrinogen IX biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd05213; NAD_bind_Glutamyl_tRNA_reduct; 1.
DR Gene3D; 3.30.460.30; Glutamyl-tRNA reductase, N-terminal domain; 1.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR HAMAP; MF_00087; Glu_tRNA_reductase; 1.
DR InterPro; IPR000343; 4pyrrol_synth_GluRdtase.
DR InterPro; IPR015896; 4pyrrol_synth_GluRdtase_dimer.
DR InterPro; IPR015895; 4pyrrol_synth_GluRdtase_N.
DR InterPro; IPR018214; GluRdtase_CS.
DR InterPro; IPR036453; GluRdtase_dimer_dom_sf.
DR InterPro; IPR036343; GluRdtase_N_sf.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR006151; Shikm_DH/Glu-tRNA_Rdtase.
DR NCBIfam; TIGR01035; hemA; 1.
DR PANTHER; PTHR43013; GLUTAMYL-TRNA REDUCTASE; 1.
DR PANTHER; PTHR43013:SF1; GLUTAMYL-TRNA REDUCTASE; 1.
DR Pfam; PF00745; GlutR_dimer; 1.
DR Pfam; PF05201; GlutR_N; 1.
DR Pfam; PF01488; Shikimate_DH; 1.
DR PIRSF; PIRSF000445; 4pyrrol_synth_GluRdtase; 1.
DR SUPFAM; SSF69742; Glutamyl tRNA-reductase catalytic, N-terminal domain; 1.
DR SUPFAM; SSF69075; Glutamyl tRNA-reductase dimerization domain; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS00747; GLUTR; 1.
PE 3: Inferred from homology;
KW NADP; Oxidoreductase; Porphyrin biosynthesis.
FT CHAIN 1..434
FT /note="Glutamyl-tRNA reductase"
FT /id="PRO_0000335013"
FT ACT_SITE 58
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 57..60
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 116
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 121..123
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 127
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 196..201
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT SITE 106
FT /note="Important for activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ SEQUENCE 434 AA; 47546 MW; D9DC915D8233453A CRC64;
MDMQLLTIGI NHHTAPVALR ERVAFPLEQI KPALSTFKSV FLGHPAPNAP EAAILSTCNR
TELYCATNDR AARDAAIRWM SDYHRIPADE LAPHVYALPQ SEAVRHAFRV ASGLDSMVLG
ETQILGQMKN AVRTASEAGS LGTYLNQLFQ RTFAVAKEVR GTTEIGAQSV SMAAAAVRLA
QRIFEQVAQQ RVLFIGAGEM IELCATHFAA QGPRELVVAN RTAERGAKLA ERFGGRAMPL
ADLPARMHEF DIIVSCTAST LPIIGLGAVE RAVKARRHRP IFMVDLAVPR DIEPEVGKLK
DVFLYTVDDL GAIVREGNAS RQAAVAQAEA IIETRVQNFM QWLDARSIVP VIRHMHTQAD
ALRRAEVERA RKMLARGDDP DAVLDALSQA LTNKLIHGPT SALNRANGAD RDSLIDLMRG
FYQHAPRSSD TSDR
//
