ID   HEM1_XANCP              Reviewed;         432 AA.
AC   Q8PC67;
DT   01-FEB-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   27-MAR-2024, entry version 127.
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=XCC0868;
OS   Xanthomonas campestris pv. campestris (strain ATCC 33913 / DSM 3586 / NCPPB
OS   528 / LMG 568 / P 25).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=190485;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33913 / DSM 3586 / NCPPB 528 / LMG 568 / P 25;
RX   PubMed=12024217; DOI=10.1038/417459a;
RA   da Silva A.C.R., Ferro J.A., Reinach F.C., Farah C.S., Furlan L.R.,
RA   Quaggio R.B., Monteiro-Vitorello C.B., Van Sluys M.A., Almeida N.F. Jr.,
RA   Alves L.M.C., do Amaral A.M., Bertolini M.C., Camargo L.E.A., Camarotte G.,
RA   Cannavan F., Cardozo J., Chambergo F., Ciapina L.P., Cicarelli R.M.B.,
RA   Coutinho L.L., Cursino-Santos J.R., El-Dorry H., Faria J.B.,
RA   Ferreira A.J.S., Ferreira R.C.C., Ferro M.I.T., Formighieri E.F.,
RA   Franco M.C., Greggio C.C., Gruber A., Katsuyama A.M., Kishi L.T.,
RA   Leite R.P., Lemos E.G.M., Lemos M.V.F., Locali E.C., Machado M.A.,
RA   Madeira A.M.B.N., Martinez-Rossi N.M., Martins E.C., Meidanis J.,
RA   Menck C.F.M., Miyaki C.Y., Moon D.H., Moreira L.M., Novo M.T.M.,
RA   Okura V.K., Oliveira M.C., Oliveira V.R., Pereira H.A., Rossi A.,
RA   Sena J.A.D., Silva C., de Souza R.F., Spinola L.A.F., Takita M.A.,
RA   Tamura R.E., Teixeira E.C., Tezza R.I.D., Trindade dos Santos M.,
RA   Truffi D., Tsai S.M., White F.F., Setubal J.C., Kitajima J.P.;
RT   "Comparison of the genomes of two Xanthomonas pathogens with differing host
RT   specificities.";
RL   Nature 417:459-463(2002).
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; AE008922; AAM40183.1; -; Genomic_DNA.
DR   RefSeq; NP_636259.1; NC_003902.1.
DR   RefSeq; WP_011036104.1; NC_003902.1.
DR   AlphaFoldDB; Q8PC67; -.
DR   SMR; Q8PC67; -.
DR   STRING; 190485.XCC0868; -.
DR   EnsemblBacteria; AAM40183; AAM40183; XCC0868.
DR   KEGG; xcc:XCC0868; -.
DR   PATRIC; fig|190485.4.peg.944; -.
DR   eggNOG; COG0373; Bacteria.
DR   HOGENOM; CLU_035113_2_2_6; -.
DR   OrthoDB; 110209at2; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000001010; Chromosome.
DR   GO; GO:0008883; F:glutamyl-tRNA reductase activity; IBA:GO_Central.
DR   GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR   GO; GO:0019353; P:protoporphyrinogen IX biosynthetic process from glutamate; IBA:GO_Central.
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..432
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_0000114091"
FT   REGION          408..432
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         101
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         106..108
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         112
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         181..186
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   SITE            91
FT                   /note="Important for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ   SEQUENCE   432 AA;  47377 MW;  9E16B168504636D9 CRC64;
     MTLWVLGLNH QTAPVDLRER AAFAGDALPR ALDSLRILPQ VREAALLSTC NRTELYAMAD
     DPQTLVAWLD MHAPGLSGYL YQHRDAEAVR HLFRVATGLD SMVLGEPQIL GQVKDAWAVA
     RAHGALGSGL DRLFQQTFSV AKRARTDTRV GANPVSVAST AVRLAQESFA RLNESTVLLV
     GAGETIELAA KHLSEGRVRR LLIANRTLAH AQTLATQHGG VALPLTELDR HLAEADVVFS
     ATAAREPVVT RVQVEQALRT RKRKPMLLFD LAVPRDIEAS VAELSDAYLY TVDDLERAVE
     DNRRSRREAA DQAEAIIDLQ VARYVETLQA NERQAPLKRL RAFGDSTRDE LLAKARQQLS
     NGKPADEVLE QLAHALTNRL LHPPTAALRD AALNNDLDLT SAADRLFPEK PGYRHPPVAT
     PIVRTDDANP AP
//