ID   HEM1_MICLC              Reviewed;         450 AA.
AC   C5CB93;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   27-MAR-2024, entry version 82.
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=Mlut_15240;
OS   Micrococcus luteus (strain ATCC 4698 / DSM 20030 / JCM 1464 / NBRC 3333 /
OS   NCIMB 9278 / NCTC 2665 / VKM Ac-2230) (Micrococcus lysodeikticus).
OC   Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Micrococcaceae;
OC   Micrococcus.
OX   NCBI_TaxID=465515;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 4698 / DSM 20030 / JCM 1464 / NBRC 3333 / NCIMB 9278 /
RC   NCTC 2665 / VKM Ac-2230;
RX   PubMed=19948807; DOI=10.1128/jb.01254-09;
RA   Young M., Artsatbanov V., Beller H.R., Chandra G., Chater K.F., Dover L.G.,
RA   Goh E.B., Kahan T., Kaprelyants A.S., Kyrpides N., Lapidus A., Lowry S.R.,
RA   Lykidis A., Mahillon J., Markowitz V., Mavromatis K., Mukamolova G.V.,
RA   Oren A., Rokem J.S., Smith M.C., Young D.I., Greenblatt C.L.;
RT   "Genome sequence of the Fleming strain of Micrococcus luteus, a simple
RT   free-living actinobacterium.";
RL   J. Bacteriol. 192:841-860(2010).
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; CP001628; ACS31016.1; -; Genomic_DNA.
DR   RefSeq; WP_010080565.1; NZ_WBMF01000016.1.
DR   AlphaFoldDB; C5CB93; -.
DR   SMR; C5CB93; -.
DR   STRING; 465515.Mlut_15240; -.
DR   EnsemblBacteria; ACS31016; ACS31016; Mlut_15240.
DR   KEGG; mlu:Mlut_15240; -.
DR   PATRIC; fig|465515.4.peg.1460; -.
DR   eggNOG; COG0373; Bacteria.
DR   HOGENOM; CLU_035113_4_1_11; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000000738; 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; 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; 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   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.
PE   3: Inferred from homology;
KW   NADP; Oxidoreductase; Porphyrin biosynthesis; Reference proteome.
FT   CHAIN           1..450
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000202638"
FT   ACT_SITE        46
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         45..48
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         107
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         112..114
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         118
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         196..201
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   SITE            97
FT                   /note="Important for activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ   SEQUENCE   450 AA;  46363 MW;  F15E233FC31F3069 CRC64;
     MTVFSLVASH HDLDLDTVAR LSAGATGVGP ALPGSGAAGA VVLATCNRVE IYAEADGAGV
     EAARAGLLSA VAASTSLPDE DVHAAFRTLD ADATARHLFE VGVGLDSAVV GEREIAGQVR
     RALTAAQEAG TASGPLVRLF ESATRTAKDV GSHTALGAAG RSVVSVALDL AEELRGLTDA
     AAQRDFWAGA TILLIGTGAY AGTTLAQLAD RGATTVGVHS ASGRAEQFVA DRGGWALALG
     GEAVAGAVAE ADVIIGSSGG ERQISPERLQ ELREGGRRPL TVVDLALSRD FDPAVADLPD
     VDLITLESVR LAAPEQAQVA VAEARALVDD AVEEYRAAQR GRSADAAIKA LRRHTLGVLD
     RELERVRARH GCTAAAEEVE FALRRMVNQL LHEPSVRAKR LAAEGRLDRY EDALEAVFGI
     EAPGRPASEV GTVEAACPAH EDEGGAARIA
//