HEM1_CENSY
ID HEM1_CENSY Reviewed; 417 AA.
AC A0RXF8;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 09-JAN-2007, sequence version 1.
DT 03-AUG-2022, entry version 89.
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=CENSYa_1403;
OS Cenarchaeum symbiosum (strain A).
OC Archaea; Thaumarchaeota; Cenarchaeales; Cenarchaeaceae; Cenarchaeum.
OX NCBI_TaxID=414004;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=A;
RX PubMed=17114289; DOI=10.1073/pnas.0608549103;
RA Hallam S.J., Konstantinidis K.T., Putnam N., Schleper C., Watanabe Y.,
RA Sugahara J., Preston C., de la Torre J., Richardson P.M., DeLong E.F.;
RT "Genomic analysis of the uncultivated marine crenarchaeote Cenarchaeum
RT symbiosum.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:18296-18301(2006).
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; DP000238; ABK78025.1; -; Genomic_DNA.
DR AlphaFoldDB; A0RXF8; -.
DR SMR; A0RXF8; -.
DR STRING; 414004.CENSYa_1403; -.
DR EnsemblBacteria; ABK78025; ABK78025; CENSYa_1403.
DR KEGG; csy:CENSYa_1403; -.
DR PATRIC; fig|414004.10.peg.1287; -.
DR HOGENOM; CLU_035113_0_0_2; -.
DR OMA; FAFKCAA; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000000758; 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; Reference proteome.
FT CHAIN 1..417
FT /note="Glutamyl-tRNA reductase"
FT /id="PRO_0000335086"
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 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 187..192
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 417 AA; 44658 MW; DACC084A22FC2F08 CRC64;
MIPGLINARV TFHNSPVHAL ERFTFRDVGA ALEGFRAGSG LDECVIVQTC NRVELFGASA
SPDMGSIRRT WASLAGIDES LFGGHLESSG GGEVLEHLLR LTSGLDSMVV GEEQILGQVK
NAITSARTSG ASGRRLNTLF DRAIRSGTRI RNSTGIGSGG VSVGSMAVRL VEENMDDLHS
RSILLIGTGE VSTLVAKSLG KRGYDFSVAS RTLQRSQAFC SAMGGSPVLF EDVLDGFGGY
DVLFVATGAP YFLVTYDKIS EVLESRGGMM ILDLSNPRTV DEKVATLGGI KLMNLDQIAE
MVSKNMRNRM SSVGKVEQMI SGEVPVMEAA MNRLDAEPIA EAAFKEADAL RRRELAKALQ
MLGNIGGNDA KVIDDLTRAL VESIMSAPMN NLRRASEEGD ADVVDAAARL FDYRRPG
