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HEM1_CLAM3
ID   HEM1_CLAM3              Reviewed;         439 AA.
AC   A5CNH4;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 88.
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=CMM_0586;
OS   Clavibacter michiganensis subsp. michiganensis (strain NCPPB 382).
OC   Bacteria; Actinobacteria; Micrococcales; Microbacteriaceae; Clavibacter.
OX   NCBI_TaxID=443906;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCPPB 382;
RX   PubMed=18192381; DOI=10.1128/jb.01595-07;
RA   Gartemann K.-H., Abt B., Bekel T., Burger A., Engemann J., Fluegel M.,
RA   Gaigalat L., Goesmann A., Graefen I., Kalinowski J., Kaup O., Kirchner O.,
RA   Krause L., Linke B., McHardy A., Meyer F., Pohle S., Rueckert C.,
RA   Schneiker S., Zellermann E.-M., Puehler A., Eichenlaub R., Kaiser O.,
RA   Bartels D.;
RT   "The genome sequence of the tomato-pathogenic actinomycete Clavibacter
RT   michiganensis subsp. michiganensis NCPPB382 reveals a large island involved
RT   in pathogenicity.";
RL   J. Bacteriol. 190:2138-2149(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; AM711867; CAN00611.1; -; Genomic_DNA.
DR   RefSeq; WP_011931806.1; NC_009480.1.
DR   AlphaFoldDB; A5CNH4; -.
DR   SMR; A5CNH4; -.
DR   STRING; 443906.CMM_0586; -.
DR   EnsemblBacteria; CAN00611; CAN00611; CMM_0586.
DR   KEGG; cmi:CMM_0586; -.
DR   eggNOG; COG0373; Bacteria.
DR   HOGENOM; CLU_035113_4_1_11; -.
DR   OMA; FAFKCAA; -.
DR   OrthoDB; 1358620at2; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000001564; 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..439
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000004612"
FT   ACT_SITE        47
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         46..49
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         111
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         116..118
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         122
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            101
FT                   /note="Important for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ   SEQUENCE   439 AA;  45607 MW;  9820C8DD238F7EA6 CRC64;
     MLICLTASHH NASFEVLEKL SVAAPSVAGA LMEQNDFIAG AVVLATCNRF EAYLDVEEPL
     TAARALAVEA TVDVVSGASG IARDDVRGSV DVKCGDAVAE HLFAVSSGLE SVVVGEGEIA
     GQVRRALEGA RTGGTTSTGL ERLFQTASNT SRGVKTRTGL QSAGRSMVRL ALDLAESRIA
     DWSATRVLLV GTGAYAGASL AALRDRGVVD VHVYSPSGRA QKFAGPHGIP AVEGRDLLRA
     LAASDMVVTC STAPTAVLAA HHMQGAAAVS GDGRRRLVID LGLPRNVDPD VVTVDGVELL
     DLETISLHAP LRDLTATDDA REIVSTAAAE FRAASAEDEV APAVVALRTH IFDVLEGELE
     RVRKRGDSSD ATEKALRHLV SVLVHQPSVR ARELARQGEG ARVVDAVQAL FGLDVEMPAA
     VSSPVAVALS RTAEAGQAS
 
 
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