ID HEM1_ALIB4 Reviewed; 432 AA. AC A8ERT8; DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot. DT 13-NOV-2007, sequence version 1. DT 27-MAR-2024, entry version 99. 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=Abu_0387; OS Aliarcobacter butzleri (strain RM4018) (Arcobacter butzleri). OC Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales; OC Arcobacteraceae; Aliarcobacter. OX NCBI_TaxID=367737; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=RM4018; RX PubMed=18159241; DOI=10.1371/journal.pone.0001358; RA Miller W.G., Parker C.T., Rubenfield M., Mendz G.L., Woesten M.M.S.M., RA Ussery D.W., Stolz J.F., Binnewies T.T., Hallin P.F., Wang G., Malek J.A., RA Rogosin A., Stanker L.H., Mandrell R.E.; RT "The complete genome sequence and analysis of the Epsilonproteobacterium RT Arcobacter butzleri."; RL PLoS ONE 2:E1358-E1358(2007). 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; CP000361; ABV66662.1; -; Genomic_DNA. DR RefSeq; WP_012012216.1; NC_009850.1. DR AlphaFoldDB; A8ERT8; -. DR SMR; A8ERT8; -. DR STRING; 367737.Abu_0387; -. DR KEGG; abu:Abu_0387; -. DR eggNOG; COG0373; Bacteria. DR HOGENOM; CLU_035113_2_2_7; -. DR UniPathway; UPA00251; UER00316. DR Proteomes; UP000001136; 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..432 FT /note="Glutamyl-tRNA reductase" FT /id="PRO_1000057569" FT ACT_SITE 51 FT /note="Nucleophile" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 50..53 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 110 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 115..117 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 121 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT BINDING 190..195 FT /ligand="NADP(+)" FT /ligand_id="ChEBI:CHEBI:58349" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" FT SITE 100 FT /note="Important for activity" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087" SQ SEQUENCE 432 AA; 48438 MW; E7753AA710ECAB7B CRC64; MSYLVISFSH KNTDIKLREK LAFNSDEDKD RFLKLILEND ITKEAILLST CNRVEIITRS LNIKQSSKDI IEKLATYSKV DFDVLYDRAD IYDADGAVHH LFSVASALDS LVIGETQIVG QLKDAFRFSQ AKGYCSLNIT RVMHYAFKCA AQVRTATSLG TGSVSVASTA VSKAKDIIGN TKDVKALVVG AGEMSELTVK HLIASGFDVT IISRDTKKAQ NLASTFEVHV NVEPYDKLTQ LLITTPIMIT ATSAPYPIIT KENAPSSNIN RYWFDIAVPR DIDENISMSN LEIFSVDDLQ DIVNENMSLR AEQAKTAYGI VSRMSLEFFE WLKSLEIEPI VKNLYLKGNE IIDKKVKNAI KKGFIDSKDE ENIRKLCLTV ITEYLHNPAK QLKDISKNME CDLVVGTVQN MFSLNENSTS KNRYKCDHLS KN //