ID HEM1_RHOOB Reviewed; 478 AA. AC C1AZ44; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 26-MAY-2009, sequence version 1. DT 27-MAR-2024, entry version 100. 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=ROP_17250; OS Rhodococcus opacus (strain B4). OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Nocardiaceae; OC Rhodococcus. OX NCBI_TaxID=632772; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=B4; RA Takarada H., Sekine M., Hosoyama A., Yamada R., Fujisawa T., Omata S., RA Shimizu A., Tsukatani N., Tanikawa S., Fujita N., Harayama S.; RT "Comparison of the complete genome sequences of Rhodococcus erythropolis RT PR4 and Rhodococcus opacus B4."; RL Submitted (MAR-2009) to the EMBL/GenBank/DDBJ databases. 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; AP011115; BAH49972.1; -; Genomic_DNA. DR RefSeq; WP_012688933.1; NC_012522.1. DR AlphaFoldDB; C1AZ44; -. DR SMR; C1AZ44; -. DR STRING; 632772.ROP_17250; -. DR KEGG; rop:ROP_17250; -. DR PATRIC; fig|632772.20.peg.1808; -. DR HOGENOM; CLU_035113_4_0_11; -. DR OrthoDB; 110209at2; -. DR UniPathway; UPA00251; UER00316. DR Proteomes; UP000002212; 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. FT CHAIN 1..478 FT /note="Glutamyl-tRNA reductase" FT /id="PRO_1000190538" 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 191..196 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 478 AA; 49790 MW; BF23CC81F2D15D75 CRC64; MSVLLVGVSH RTAPVPVLER VAVTDTDRPK LTDKLLASSH ISEAMIVSTC NRVEIYAVVD AFHGALAEVG ELLADHSGLD LTDLHRHAYV RYSEAAAEHL FAVASGLDSM VIGEQQILGQ IRTAYASSDA QQAAGRTLHE LAQQALRVGK RVHSETGIDS AGASVVSVAL DRAAGIVGAG GLTGRTAVVV GAGSMGGLSV AHLTRAGIGR IVVVNRTRER AEHLADTARS NGVAAEALEL AELPDAMAQA DVLVTCTGAV GAVVTLADTH RALAQPGRDS ERPLVICDLG LPRDVEPAVS GLPGVTVLDM ESLQRDPAAG AAASDADAAR TIVAAELANY LAGQRLAEVT PTVTALRQRA ADVVEAELMR LDSRLPGLDD PERDEVARTV RRVVDKLLHA PTVRVKQLAS APGGDSYAAA LRELFELSPG SVEAVAKPTE LGGADLGAID ITDGFIAGQD PRLRRFVADD NRGKESQA //