ID A0A4U7F117_9EURY Unreviewed; 446 AA.
AC A0A4U7F117;
DT 31-JUL-2019, integrated into UniProtKB/TrEMBL.
DT 31-JUL-2019, sequence version 1.
DT 05-FEB-2025, entry version 21.
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 ORFNames=EXE53_26055 {ECO:0000313|EMBL:TKX77535.1};
OS Halorubrum sp. SD626R.
OC Archaea; Methanobacteriati; Methanobacteriota; Stenosarchaea group;
OC Halobacteria; Halobacteriales; Haloferacaceae; Halorubrum.
OX NCBI_TaxID=1419722 {ECO:0000313|EMBL:TKX77535.1, ECO:0000313|Proteomes:UP000305339};
RN [1] {ECO:0000313|EMBL:TKX77535.1, ECO:0000313|Proteomes:UP000305339}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SD626R {ECO:0000313|EMBL:TKX77535.1,
RC ECO:0000313|Proteomes:UP000305339};
RX PubMed=30893937;
RA Fullmer M.S., Ouellette M., Louyakis A.S., Papke R.T., Gogarten J.P.;
RT "The Patchy Distribution of Restriction(-)Modification System Genes and the
RT Conservation of Orphan Methyltransferases in Halobacteria.";
RL Genes (Basel) 10:0-E233(2019).
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 + 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;
CC Evidence={ECO:0000256|ARBA:ARBA00047464, 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:TKX77535.1}.
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DR EMBL; SGTW01000430; TKX77535.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A4U7F117; -.
DR OrthoDB; 4562at2157; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000305339; Unassembled WGS sequence.
DR GO; GO:0008883; F:glutamyl-tRNA reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR GO; GO:0019353; P:protoporphyrinogen IX biosynthetic process from glutamate; IEA:TreeGrafter.
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:UP000305339}.
FT DOMAIN 10..151
FT /note="Glutamyl-tRNA reductase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF05201"
FT DOMAIN 168..296
FT /note="Quinate/shikimate 5-dehydrogenase/glutamyl-tRNA
FT reductase"
FT /evidence="ECO:0000259|Pfam:PF01488"
FT DOMAIN 311..410
FT /note="Tetrapyrrole biosynthesis glutamyl-tRNA reductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF00745"
FT REGION 417..446
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 52
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-1"
FT BINDING 51..54
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 104
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 109..111
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 115
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 183..188
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 94
FT /note="Important for activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-4"
SQ SEQUENCE 446 AA; 47326 MW; BA6B6C6F54DA72D0 CRC64;
MNETGAITGV SVAHSRATVD EIEAAGGDGV RATVSDLLAR DGVEEAFALQ TCNRSEAFVV
TDRTIDGAVA LESFAPEVRG GAVRRLDHEE SLEHLMRVAS GLESLVLGED QIIGQLREAY
EESKSAGGIG PVLKDAVTKA LHVGERARNE TSINEGVVSL GSAAVRLAAT EIDLTGGSAV
VIGAGEMGML AARTLDDTPV SDIVVANRTV PNAEFLAEEV DTPADAVSLA DLPAVIPDAD
LVISATGSTE PVVDPDHLAD AGRTVCIDIA QPRDIDPAAG DRPGVTLYDI DALEDVTRRT
RESREAEART VEEIIDEELD RILQAYKRKR ADDAISAMYA GADRVKAREV DRAVSKLESQ
GELTDAQRET VEDMADALVG QLLAAPTRSL RDAAGEDDWE TIRTALRLFD PEFDTIPDRP
GAFAPNHDAA AEFDAPPDSV TEELDD
//
