ID   HEM1_PSECP              Reviewed;         441 AA.
AC   B8HBS2;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   02-SEP-2026, entry version 99.
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=Achl_2495;
OS   Pseudarthrobacter chlorophenolicus (strain ATCC 700700 / DSM 12829 / CIP
OS   107037 / JCM 12360 / KCTC 9906 / NCIMB 13794 / A6) (Arthrobacter
OS   chlorophenolicus).
OC   Bacteria; Bacillati; Actinomycetota; Actinomycetes; Micrococcales;
OC   Micrococcaceae; Pseudarthrobacter.
OX   NCBI_TaxID=452863;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700700 / DSM 12829 / CIP 107037 / JCM 12360 / KCTC 9906 /
RC   NCIMB 13794 / A6;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Goltsman E., Clum A., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Mikhailova N., Jansson J., Richardson P.;
RT   "Complete sequence of chromosome of Arthrobacter chlorophenolicus A6.";
RL   Submitted (JAN-2009) 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 + tRNA(Glu) + NADP(+) = L-
CC         glutamyl-tRNA(Glu) + NADPH + H(+); 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; CP001341; ACL40460.1; -; Genomic_DNA.
DR   RefSeq; WP_015937672.1; NC_011886.1.
DR   AlphaFoldDB; B8HBS2; -.
DR   SMR; B8HBS2; -.
DR   STRING; 452863.Achl_2495; -.
DR   KEGG; ach:Achl_2495; -.
DR   eggNOG; COG0373; Bacteria.
DR   HOGENOM; CLU_035113_4_1_11; -.
DR   OrthoDB; 110209at2; -.
DR   UniPathway; UPA00251; UER00316.
DR   Proteomes; UP000002505; 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:0033014; P:tetrapyrrole biosynthetic process; IEA:InterPro.
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   NCBIfam; NF000750; PRK00045.3-4; 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..441
FT                   /note="Glutamyl-tRNA reductase"
FT                   /id="PRO_1000118465"
FT   ACT_SITE        48
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT   BINDING         47..50
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         192..197
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   441 AA;  45570 MW;  D7D32001BF5E225D CRC64;
     MVLFSLVATH ADIDLETVAQ LSNGSSGIAA SVLSGSPAVS GAVVLATCNR YEIYGEAPNT
     DDVEAARAAL VAQISAQSGL AEPLVSRSFS TRTGPEVTRH LFAVSAGLDS AVVGEREIAG
     QVRRALITAQ HEGTASSGLV RLFQAASKTA KDVGAQTALG SRGLSIVSVA LDLATDLSEN
     PDWSAKKVVV FGTGAYAGAT MALLRERGCT DVSVFSSSGR AEGFVATRGG TALDADSLRP
     AVAAADVMIG CSGSDTRVEA DELAQVRAGS AQPLIAIDLA LTHDFDPAVG ELNGVELLTL
     ESVRLAAPQE QAESLAQASG IVKGAAKAFE QEREARSVDS AIVALRRHTM DVLDAEMEKV
     RARHGCTAAA EEVEFALRRM VKQLLHVPTV RARELAANGQ QDDYVAALEA LYGITVEQPG
     TAAPAAGQAE CPVDHKGLES A
//