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HEM1_COXBR
ID   HEM1_COXBR              Reviewed;         413 AA.
AC   A9N9K1;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 84.
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=COXBURSA331_A0118;
OS   Coxiella burnetii (strain RSA 331 / Henzerling II).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales; Coxiellaceae;
OC   Coxiella.
OX   NCBI_TaxID=360115;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RSA 331 / Henzerling II;
RA   Seshadri R., Samuel J.E.;
RT   "Genome sequencing of phylogenetically and phenotypically diverse Coxiella
RT   burnetii isolates.";
RL   Submitted (NOV-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}.
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DR   EMBL; CP000890; ABX78257.1; -; Genomic_DNA.
DR   RefSeq; WP_005769672.1; NC_010117.1.
DR   AlphaFoldDB; A9N9K1; -.
DR   SMR; A9N9K1; -.
DR   PRIDE; A9N9K1; -.
DR   KEGG; cbs:COXBURSA331_A0118; -.
DR   HOGENOM; CLU_035113_2_2_6; -.
DR   OMA; FAFKCAA; -.
DR   UniPathway; UPA00251; UER00316.
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   Gene3D; 3.30.460.30; -; 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   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; SSF51735; SSF51735; 1.
DR   SUPFAM; SSF69075; SSF69075; 1.
DR   SUPFAM; SSF69742; SSF69742; 1.
DR   TIGRFAMs; TIGR01035; hemA; 1.
DR   PROSITE; PS00747; GLUTR; 1.
PE   3: Inferred from homology;
KW   NADP; Oxidoreductase; Porphyrin biosynthesis.
FT   CHAIN           1..413
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000075406"
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         105
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         110..112
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         116
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         185..190
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   SITE            95
FT                   /note="Important for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ   SEQUENCE   413 AA;  46586 MW;  A8FD01470941577D CRC64;
     MPLLVCGINH QSAPLTVREK LVFTPERTPL ALQSLLAEKA VNEALLLSTC NRTEIYTTVD
     EAATILRWLS KQPQLSGIDL RSFCYARRDI EMVRHVMRVG SGLDSMVLGE PQILGQMKQA
     YLLARRIGAV GSELGRLFPA VFAATKRIRS ETAIGANPVS IAYAVVQLAK RIFSHLNQCQ
     ILLIGAGETI ELVFSHLYNQ GARHFFIANR TLTRAKQIAE PYHAQAIRLS DIPTYLPKVD
     IVISATMSQL PLVGKGAVES ALRQRKRRPL FMADLALPRD IEPETAQLED VYLYNIDDLQ
     TLIAQNRQTR EAAAKQAEAM VEMQAIHYMR QLQVHKAGDT IRRFRERVEM LRDQELEKAL
     AHFQRTNDPK AVIAHFAHNL TNKILHQPTT KLRQAAYEDQ VQLLLSAKEL FDL
 
 
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