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HEM1_CAMLR
ID   HEM1_CAMLR              Reviewed;         435 AA.
AC   B9KGB2;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, 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}; OrderedLocusNames=Cla_0770;
OS   Campylobacter lari (strain RM2100 / D67 / ATCC BAA-1060).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Campylobacteraceae; Campylobacter.
OX   NCBI_TaxID=306263;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RM2100 / D67 / ATCC BAA-1060;
RX   PubMed=18713059; DOI=10.1089/fpd.2008.0101;
RA   Miller W.G., Wang G., Binnewies T.T., Parker C.T.;
RT   "The complete genome sequence and analysis of the human pathogen
RT   Campylobacter lari.";
RL   Foodborne Pathog. Dis. 5:371-386(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; CP000932; ACM64097.1; -; Genomic_DNA.
DR   RefSeq; WP_012661480.1; NC_012039.1.
DR   AlphaFoldDB; B9KGB2; -.
DR   SMR; B9KGB2; -.
DR   STRING; 306263.Cla_0770; -.
DR   EnsemblBacteria; ACM64097; ACM64097; CLA_0770.
DR   GeneID; 7410104; -.
DR   KEGG; cla:CLA_0770; -.
DR   PATRIC; fig|306263.5.peg.749; -.
DR   eggNOG; COG0373; Bacteria.
DR   HOGENOM; CLU_035113_2_2_7; -.
DR   OMA; FAFKCAA; -.
DR   OrthoDB; 1358620at2; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000007727; 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   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..435
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000190510"
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         189..194
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   435 AA;  49314 MW;  041D663FB91B6B3B CRC64;
     MHYYCISFTH KNTDIATREK LSFSNEDKKR ELLKLIHTNN KILESLVLST CNRVEIFLFV
     GDVESINEHI LKTLSLLCGV DRENLSTKAD FYEDSGAIHH LFSVASSLDS LVIGETQIAG
     QLKDAYKFAL QEQRCGVHLT RAVHYAFKCA ANVRNQTEIS KNPISVASVA VAKAKELVNL
     ENKTAVVVGA GEMSELACKH LLNAKAKVLI LNRDIQNAQK LCEDLGENAS YESIANLKEA
     LNQYEIFFSA TNAPHAIITN DLLEEKDYSR YFFDIAVPRD IDVKANEKNI VYAVDDLEEV
     VRKNLTLREH QAQIAYSIVG TMTNEFFQHL SKLATLPLVK QLRLQADEIA KEQLQKAIDK
     GYLKHSNHEE ARKLIRQVMN AFLHHPSVNL KKLSGTMQND SVINAMRYVF DLKNENMEGL
     NLYKCEFNLE NNHEI
 
 
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