ID   HEM1_LYSSC              Reviewed;         454 AA.
AC   B1HVD8;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   27-MAR-2024, entry version 94.
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=Bsph_3972;
OS   Lysinibacillus sphaericus (strain C3-41).
OC   Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Lysinibacillus.
OX   NCBI_TaxID=444177;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=C3-41;
RX   PubMed=18296527; DOI=10.1128/jb.01652-07;
RA   Hu X., Fan W., Han B., Liu H., Zheng D., Li Q., Dong W., Yan J., Gao M.,
RA   Berry C., Yuan Z.;
RT   "Complete genome sequence of the mosquitocidal bacterium Bacillus
RT   sphaericus C3-41 and comparison with those of closely related Bacillus
RT   species.";
RL   J. Bacteriol. 190:2892-2902(2008).
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; CP000817; ACA41440.1; -; Genomic_DNA.
DR   RefSeq; WP_012295484.1; NC_010382.1.
DR   AlphaFoldDB; B1HVD8; -.
DR   SMR; B1HVD8; -.
DR   EnsemblBacteria; ACA41440; ACA41440; Bsph_3972.
DR   KEGG; lsp:Bsph_3972; -.
DR   HOGENOM; CLU_035113_2_2_9; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000002164; 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; PTHR43120; GLUTAMYL-TRNA REDUCTASE 1, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR43120:SF1; GLUTAMYL-TRNA REDUCTASE 1, CHLOROPLASTIC; 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..454
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000093149"
FT   REGION          434..454
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
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   454 AA;  50925 MW;  ED4A1768750B7EAC CRC64;
     MHTIVVGLNY KTAPVEIREK LSFIESELPQ AMEALQKQKS ILENVIVSTC NRTEIYAVVD
     QLHTGRHFVK QFLADWFDLP VETFSSYLTI REEDEAVEHL FKVTAGIDSM VLGETQILGQ
     VKKSFLSGQE IGTTGTVYNQ LFKQAVTFAK RAHNETAIGE NAVSVSYAAV ELAKKIFGSL
     QRKHVAILGA GKMGELAIEN LYGSGVGKVT VINRTFEKAE SLAAKFHGQA KSMKELQCSL
     LEADILITST GATDYVIDYE LMQFVERLRK GKPLFMVDIA VPRDIDPRVG DLPNVFLYDI
     DDLQGIVEAN LAERERAAAD ITDMIGHEVI QFKDWVSTLG VVPVISALRK KANRIQEETM
     TSIENKMPDL TERERKILSK HTKSIINQLL KEPILQAKEM ANSPKANEQL RLFQQIFGIE
     EAVEAEVQEM TKQELERKER AQATQTSAEP KYSF
//