HEM12_KORVE
ID HEM12_KORVE Reviewed; 436 AA.
AC Q1INI5;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-JUN-2006, sequence version 1.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=Glutamyl-tRNA reductase 2 {ECO:0000255|HAMAP-Rule:MF_00087};
DE Short=GluTR 2 {ECO:0000255|HAMAP-Rule:MF_00087};
DE EC=1.2.1.70 {ECO:0000255|HAMAP-Rule:MF_00087};
GN Name=hemA2 {ECO:0000255|HAMAP-Rule:MF_00087};
GN OrderedLocusNames=Acid345_2564;
OS Koribacter versatilis (strain Ellin345).
OC Bacteria; Acidobacteria; Acidobacteriales; Acidobacteriaceae;
OC Candidatus Koribacter.
OX NCBI_TaxID=204669;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Ellin345;
RX PubMed=19201974; DOI=10.1128/aem.02294-08;
RA Ward N.L., Challacombe J.F., Janssen P.H., Henrissat B., Coutinho P.M.,
RA Wu M., Xie G., Haft D.H., Sait M., Badger J., Barabote R.D., Bradley B.,
RA Brettin T.S., Brinkac L.M., Bruce D., Creasy T., Daugherty S.C.,
RA Davidsen T.M., DeBoy R.T., Detter J.C., Dodson R.J., Durkin A.S.,
RA Ganapathy A., Gwinn-Giglio M., Han C.S., Khouri H., Kiss H., Kothari S.P.,
RA Madupu R., Nelson K.E., Nelson W.C., Paulsen I., Penn K., Ren Q.,
RA Rosovitz M.J., Selengut J.D., Shrivastava S., Sullivan S.A., Tapia R.,
RA Thompson L.S., Watkins K.L., Yang Q., Yu C., Zafar N., Zhou L., Kuske C.R.;
RT "Three genomes from the phylum Acidobacteria provide insight into the
RT lifestyles of these microorganisms in soils.";
RL Appl. Environ. Microbiol. 75:2046-2056(2009).
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; CP000360; ABF41565.1; -; Genomic_DNA.
DR RefSeq; WP_011523366.1; NC_008009.1.
DR AlphaFoldDB; Q1INI5; -.
DR SMR; Q1INI5; -.
DR STRING; 204669.Acid345_2564; -.
DR EnsemblBacteria; ABF41565; ABF41565; Acid345_2564.
DR KEGG; aba:Acid345_2564; -.
DR eggNOG; COG0373; Bacteria.
DR HOGENOM; CLU_035113_2_2_0; -.
DR OMA; FAFKCAA; -.
DR OrthoDB; 1358620at2; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000002432; 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..436
FT /note="Glutamyl-tRNA reductase 2"
FT /id="PRO_0000334999"
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 106
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 111..113
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 117
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 186..191
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT SITE 96
FT /note="Important for activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ SEQUENCE 436 AA; 48410 MW; 407B8A871D22A84C CRC64;
MNFFVIGVNH KTAPVEVRER FAIPESRLPE ATKLLASYPG IEEGMIVSTC NRVEMVARSV
NGNADMRGFL KQLYNIDPAQ YEQYLYEYRS TEAVRHMFRV ASSLDSMVVG EPQILGQVKE
AYATARAVGA VSSQLDALLT RAFAVAKRVR TDTSIASSSV SIASVAVELA KKIFGSLQGR
SVYIVGAGKM CELAARHFVA HGVEKIYVAN RTYERGVAFA KKFNGEAVPI EHLYETVDKA
DIVLSSTGAP IAIFRKEHGE KFLSRRKNRP MFFLDIAVPR DVDAKMNELD GIFVYDIDDL
QQVVHSHISD RKDEAAHAEA IVNAEVEKFE ERLRTLDVVP TIVSLQEHLE TVRQAEIDRL
RGRLGELSPE QEMAVDALTK GIINKIMHTP ITTLKTAAKE PESTTVIELV KRIFNLHEKA
KDETVKTGPP QSGPGK
