HEM11_PYRCJ
ID HEM11_PYRCJ Reviewed; 380 AA.
AC A3MW83;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 03-APR-2007, sequence version 1.
DT 03-AUG-2022, entry version 89.
DE RecName: Full=Glutamyl-tRNA reductase 1 {ECO:0000255|HAMAP-Rule:MF_00087};
DE Short=GluTR 1 {ECO:0000255|HAMAP-Rule:MF_00087};
DE EC=1.2.1.70 {ECO:0000255|HAMAP-Rule:MF_00087};
GN Name=hemA1 {ECO:0000255|HAMAP-Rule:MF_00087}; OrderedLocusNames=Pcal_1481;
OS Pyrobaculum calidifontis (strain DSM 21063 / JCM 11548 / VA1).
OC Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC Pyrobaculum.
OX NCBI_TaxID=410359;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 21063 / JCM 11548 / VA1;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Cozen A.E.,
RA Fitz-Gibbon S.T., House C.H., Saltikov C., Lowe T.M., Richardson P.;
RT "Complete sequence of Pyrobaculum calidifontis JCM 11548.";
RL Submitted (FEB-2007) 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 + 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; CP000561; ABO08900.1; -; Genomic_DNA.
DR AlphaFoldDB; A3MW83; -.
DR SMR; A3MW83; -.
DR STRING; 410359.Pcal_1481; -.
DR EnsemblBacteria; ABO08900; ABO08900; Pcal_1481.
DR KEGG; pcl:Pcal_1481; -.
DR eggNOG; arCOG01036; Archaea.
DR HOGENOM; CLU_035113_0_0_2; -.
DR OMA; CELKAME; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000001431; 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; IPR015895; 4pyrrol_synth_GluRdtase_N.
DR InterPro; IPR018214; GluRdtase_CS.
DR InterPro; IPR036343; GluRdtase_N_sf.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR006151; Shikm_DH/Glu-tRNA_Rdtase.
DR Pfam; PF05201; GlutR_N; 1.
DR Pfam; PF01488; Shikimate_DH; 1.
DR SUPFAM; SSF51735; SSF51735; 1.
DR SUPFAM; SSF69742; SSF69742; 1.
DR PROSITE; PS00747; GLUTR; 1.
PE 3: Inferred from homology;
KW NADP; Oxidoreductase; Porphyrin biosynthesis.
FT CHAIN 1..380
FT /note="Glutamyl-tRNA reductase 1"
FT /id="PRO_0000335098"
FT ACT_SITE 43
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 42..45
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 93
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 98..100
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 104
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 172..177
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT SITE 83
FT /note="Important for activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ SEQUENCE 380 AA; 42139 MW; 02E622F27C210096 CRC64;
MLVDKLYALS LSHKRLSVDE LSEISRNVHK TCYNVQAFVF HTCNRVEVYL YDADAGPAEH
IKRSYGPYVE KVAEFRGVEA ARHLFRVAAG LESMLIGETD VLGQLEEAYE SQVRRGNLRG
LLKTVVERAV AVGKRVRTET GISRGPRGLG SLSIVYLSRR LPLREISVCV IGAGAVGRGV
VKELIDAGVR RVAVVNRTVE KAADLGVEVR PLTSENVEWC LREFDVVYTA VSSFEPVVVY
VPPGSRVKLV VDLGVPRNTA PNLPVEVVTL DHLRELAEEF NRQRAEEVSK AEKIVEEEVA
RLEEVLRRRW VELEMSALLK KWFAVAEEEG ERAGGGPARL AAMSTVKRTL LPLVNYIKEV
AVKDLAVAEG LLQVLKSAYA
