ID K0IJD3_NITGG Unreviewed; 440 AA.
AC K0IJD3;
DT 28-NOV-2012, integrated into UniProtKB/TrEMBL.
DT 28-NOV-2012, sequence version 1.
DT 27-MAR-2024, entry version 56.
DE RecName: Full=Glutamyl-tRNA reductase {ECO:0000256|ARBA:ARBA00012970, ECO:0000256|HAMAP-Rule:MF_00087};
DE Short=GluTR {ECO:0000256|HAMAP-Rule:MF_00087};
DE EC=1.2.1.70 {ECO:0000256|ARBA:ARBA00012970, ECO:0000256|HAMAP-Rule:MF_00087};
GN Name=hemA {ECO:0000256|HAMAP-Rule:MF_00087,
GN ECO:0000313|EMBL:AFU59233.1};
GN OrderedLocusNames=Ngar_c23070 {ECO:0000313|EMBL:AFU59233.1};
OS Nitrososphaera gargensis (strain Ga9.2).
OC Archaea; Nitrososphaerota; Nitrososphaeria; Nitrososphaerales;
OC Nitrososphaeraceae; Nitrososphaera.
OX NCBI_TaxID=1237085 {ECO:0000313|EMBL:AFU59233.1, ECO:0000313|Proteomes:UP000008037};
RN [1] {ECO:0000313|EMBL:AFU59233.1, ECO:0000313|Proteomes:UP000008037}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Ga9.2 {ECO:0000313|Proteomes:UP000008037};
RX PubMed=23057602; DOI=10.1111/j.1462-2920.2012.02893.x;
RA Spang A., Poehlein A., Offre P., Zumbragel S., Haider S., Rychlik N.,
RA Nowka B., Schmeisser C., Lebedeva E.V., Rattei T., Bohm C., Schmid M.,
RA Galushko A., Hatzenpichler R., Weinmaier T., Daniel R., Schleper C.,
RA Spieck E., Streit W., Wagner M.;
RT "The genome of the ammonia-oxidizing Candidatus Nitrososphaera gargensis:
RT insights into metabolic versatility and environmental adaptations.";
RL Environ. Microbiol. 14:3122-45(2012).
CC -!- FUNCTION: Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu)
CC to glutamate 1-semialdehyde (GSA). {ECO:0000256|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;
CC Evidence={ECO:0000256|ARBA:ARBA00001415, ECO:0000256|HAMAP-
CC Rule:MF_00087, ECO:0000256|RuleBase:RU000584};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 1/2.
CC {ECO:0000256|ARBA:ARBA00005059, ECO:0000256|HAMAP-Rule:MF_00087,
CC ECO:0000256|RuleBase:RU000584}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00087}.
CC -!- SIMILARITY: Belongs to the glutamyl-tRNA reductase family.
CC {ECO:0000256|ARBA:ARBA00005916, ECO:0000256|HAMAP-Rule:MF_00087,
CC ECO:0000256|RuleBase:RU000584}.
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DR EMBL; CP002408; AFU59233.1; -; Genomic_DNA.
DR AlphaFoldDB; K0IJD3; -.
DR STRING; 1237085.Ngar_c23070; -.
DR KEGG; nga:Ngar_c23070; -.
DR PATRIC; fig|1237085.11.peg.2282; -.
DR HOGENOM; CLU_035113_2_2_2; -.
DR InParanoid; K0IJD3; -.
DR OrthoDB; 4562at2157; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000008037; 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 CDD; cd05213; NAD_bind_Glutamyl_tRNA_reduct; 1.
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 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 {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_00087};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00087};
KW Porphyrin biosynthesis {ECO:0000256|ARBA:ARBA00023244, ECO:0000256|HAMAP-
KW Rule:MF_00087}; Reference proteome {ECO:0000313|Proteomes:UP000008037}.
FT DOMAIN 28..171
FT /note="Glutamyl-tRNA reductase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF05201"
FT DOMAIN 187..319
FT /note="Quinate/shikimate 5-dehydrogenase/glutamyl-tRNA
FT reductase"
FT /evidence="ECO:0000259|Pfam:PF01488"
FT DOMAIN 335..433
FT /note="Tetrapyrrole biosynthesis glutamyl-tRNA reductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF00745"
FT ACT_SITE 68
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-1"
FT BINDING 67..70
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 124
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 129..131
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 135
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 204..209
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-3"
FT SITE 114
FT /note="Important for activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-4"
SQ SEQUENCE 440 AA; 48956 MW; 003966EB9D7AA712 CRC64;
MTTAAIKAAP SPTSSPTVAP VHIVNARVTY RNAPIHLLEK FTFKDIDGAH KAFLKKAGFE
ECVILQTCNR IEVFAASKNP DEGRLLEEWA SAVGLPEKDF ANVEVSRGRE AVMHLMKLTS
GLDSLVVGED QILGQVRRAV EFSRSGRYAS ANLSLIFDRA LKVGSRVRTA TGINRGNVSI
ASVAVNLAEE YFDDLKSKTI MLIGTGEAAS LVAKVLKKRN VNFMVTSRAP ERARSFAETV
AGTPIPFDSA LEMLRKVDLI FTATVAPYRL LTFNRIENAM KNNRRQGMMI FDLSNPRTVD
EKVATIHGVK LVNMDQIAEL VGKNMRSRMK EISSAEKLIE DEMKSVDMMM KRMKAEPVVV
SVFKNVDTIR ERELKKALAM LGKKLGPEET KIVEQLSYAI VEGILSTPMN NLRKVTEEGE
SEELMKIVAK LFKYEEKQQQ
//
