ID HEM1_CAMHC Reviewed; 429 AA. AC A7I1R7; DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot. DT 11-SEP-2007, sequence version 1. DT 27-MAR-2024, entry version 92. 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=CHAB381_0896; OS Campylobacter hominis (strain ATCC BAA-381 / LMG 19568 / NCTC 13146 / OS CH001A). OC Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales; OC Campylobacteraceae; Campylobacter. OX NCBI_TaxID=360107; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC BAA-381 / LMG 19568 / NCTC 13146 / CH001A; RA Fouts D.E., Mongodin E.F., Puiu D., Sebastian Y., Miller W.G., RA Mandrell R.E., Nelson K.E.; RT "Complete genome sequence of Campylobacter hominis ATCC BAA-381, a RT commensal isolated from the human gastrointestinal tract."; RL Submitted (JUL-2007) 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; CP000776; ABS52226.1; -; Genomic_DNA. DR RefSeq; WP_012108749.1; NC_009714.1. DR AlphaFoldDB; A7I1R7; -. DR SMR; A7I1R7; -. DR STRING; 360107.CHAB381_0896; -. DR KEGG; cha:CHAB381_0896; -. DR eggNOG; COG0373; Bacteria. DR HOGENOM; CLU_035113_2_2_7; -. DR OrthoDB; 110209at2; -. DR UniPathway; UPA00251; UER00316. DR Proteomes; UP000002407; 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..429 FT /note="Glutamyl-tRNA reductase" FT /id="PRO_1000057572" 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 429 AA; 47896 MW; 24112E1047B97089 CRC64; MNYMSVSFTH KNTDIIVREK LSFANDVKKR EILKLICSNK AIKECLVLST CNRVEVLAYI DDFNYTSDYV IKAISKLSGV DFDELKERAD IYEDDGAIHH LFSVASSLDS LVVGETQIVG QLKDAYNFAK NERKSGVMLD LAINSALKCA AVIRSKTDIS KNPISVASVA VCMAREKIGD LGGTTAVVVG AGEMAELACK HLITHKAKVI IINRNIDHAK KLAESLGENA SIAEFSNLGE FINKYALIFS ATGANKPIIT DLLAKPQNFK RYFFDIAVPR DIDITCDDLS EVYAVDDLEE IVRKNLLLRE EQAQIAYSIV GRETTKFYKD LKTLSSTPII KALRNSAKKV AETELKKAIK RGYLRHSDID EARKLIHQVF KAFLHTPTVN LKNLDENAQN DINAIAEIFG IEEDFDKFCE NSLENKNEI //