ID HEM1_PHOLL Reviewed; 420 AA. AC Q7N587; DT 15-DEC-2003, integrated into UniProtKB/Swiss-Prot. DT 15-DEC-2003, sequence version 1. DT 27-MAR-2024, entry version 126. 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=plu2069; OS Photorhabdus laumondii subsp. laumondii (strain DSM 15139 / CIP 105565 / OS TT01) (Photorhabdus luminescens subsp. laumondii). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; OC Morganellaceae; Photorhabdus. OX NCBI_TaxID=243265; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=DSM 15139 / CIP 105565 / TT01; RX PubMed=14528314; DOI=10.1038/nbt886; RA Duchaud E., Rusniok C., Frangeul L., Buchrieser C., Givaudan A., RA Taourit S., Bocs S., Boursaux-Eude C., Chandler M., Charles J.-F., RA Dassa E., Derose R., Derzelle S., Freyssinet G., Gaudriault S., Medigue C., RA Lanois A., Powell K., Siguier P., Vincent R., Wingate V., Zouine M., RA Glaser P., Boemare N., Danchin A., Kunst F.; RT "The genome sequence of the entomopathogenic bacterium Photorhabdus RT luminescens."; RL Nat. Biotechnol. 21:1307-1313(2003). 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}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; BX571866; CAE14362.1; -; Genomic_DNA. DR RefSeq; WP_011146324.1; NC_005126.1. DR AlphaFoldDB; Q7N587; -. DR SMR; Q7N587; -. DR STRING; 243265.plu2069; -. DR GeneID; 24166570; -. DR KEGG; plu:plu2069; -. DR eggNOG; COG0373; Bacteria. DR HOGENOM; CLU_035113_2_2_6; -. DR OrthoDB; 110209at2; -. DR UniPathway; UPA00251; UER00316. DR Proteomes; UP000002514; Chromosome. 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; Reference proteome. FT CHAIN 1..420 FT /note="Glutamyl-tRNA reductase" FT /id="PRO_0000114053" FT ACT_SITE 50 FT /note="Nucleophile" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 49..52 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 109 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 114..116 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 120 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 189..194 FT /ligand="NADP(+)" FT /ligand_id="ChEBI:CHEBI:58349" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT SITE 99 FT /note="Important for activity" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" SQ SEQUENCE 420 AA; 46993 MW; 36954E31F3A950B5 CRC64; MTLLALGINH KTAPVSLRER VTFSPDTIGE ALDNLLQHPL VKGGVVLSTC NRTELYLSVE QQDNLYEQLI GWLCEYHQLN PRELKSSIYW HCDNEAVSHL MRVASGLDSL VLGEPQILGQ VKKAFAESQH SHSLSSELER LFQKSFSVAK RIRTETEIGS NAVSVAFAAC TLARQIFESL SELNILLVGA GETIELAARH LREHRVHHMM IANRTKEKAQ VLADEVQAEV ITLPEIDIRL AEADIVISST ASPLPIIGKG MVERALKLRR NQPMLLVDIA VPRDIEPDVE KLNNVYLYSV DDLQAIIQQN LAQRKAAAVQ AECIVQQESR YFMDWLRSQS AVNSIREYRN QAEQMRAEMA AKALTAINQG ADVEQAINQL THQLMNRLIH APTKSLQQAA SNGDLERLNL LRDSLGLEHN //