ID A0A4Z0QWY4_9FIRM Unreviewed; 445 AA.
AC A0A4Z0QWY4;
DT 18-SEP-2019, integrated into UniProtKB/TrEMBL.
DT 18-SEP-2019, sequence version 1.
DT 18-JUN-2025, entry version 19.
DE RecName: Full=Glutamyl-tRNA reductase {ECO:0000256|ARBA:ARBA00068659, 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=E4K68_01835 {ECO:0000313|EMBL:TGE34453.1};
OS Desulfosporosinus sp. Sb-LF.
OC Bacteria; Bacillati; Bacillota; Clostridia; Eubacteriales;
OC Desulfitobacteriaceae; Desulfosporosinus.
OX NCBI_TaxID=2560027 {ECO:0000313|EMBL:TGE34453.1, ECO:0000313|Proteomes:UP000297375};
RN [1] {ECO:0000313|EMBL:TGE34453.1, ECO:0000313|Proteomes:UP000297375}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Sb-LF {ECO:0000313|EMBL:TGE34453.1,
RC ECO:0000313|Proteomes:UP000297375};
RA Hausmann B., Pjevac P., Huemer M., Herbold C.W., Pester M., Loy A.;
RT "Draft Genome Sequence of Desulfosporosinus sp. Strain Sb-LF, Isolated from
RT an acidic peatland in Germany.";
RL Submitted (MAR-2019) to the EMBL/GenBank/DDBJ databases.
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:TGE34453.1}.
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DR EMBL; SPQR01000001; TGE34453.1; -; Genomic_DNA.
DR RefSeq; WP_135377030.1; NZ_SPQR01000001.1.
DR AlphaFoldDB; A0A4Z0QWY4; -.
DR OrthoDB; 110209at2; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000297375; 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 FunFam; 3.30.460.30:FF:000001; Glutamyl-tRNA reductase; 1.
DR FunFam; 3.40.50.720:FF:000031; Glutamyl-tRNA reductase; 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; 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 NCBIfam; NF000744; PRK00045.1-3; 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.
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:UP000297375}.
FT DOMAIN 6..156
FT /note="Glutamyl-tRNA reductase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF05201"
FT DOMAIN 171..306
FT /note="Quinate/shikimate 5-dehydrogenase/glutamyl-tRNA
FT reductase"
FT /evidence="ECO:0000259|Pfam:PF01488"
FT DOMAIN 321..419
FT /note="Tetrapyrrole biosynthesis glutamyl-tRNA reductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF00745"
FT ACT_SITE 50
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-1"
FT BINDING 49..52
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 109
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 114..116
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 120
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 189..194
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 99
FT /note="Important for activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-4"
SQ SEQUENCE 445 AA; 49980 MW; 78EFDF554829585D CRC64;
MFPVAIGLNH RSAPVEIREK MSFHPSQMKE VLRELKSYPG LEGVVILSTC NRTEVYAATT
NVEVGIISIK KFLADHHGIE EKLLDQYLYV HTLYDAVRHL FRVTSGLDSM VRGETQILGQ
VANAYEQASH AEVTNKAINV FFQTALAVGK RIRTETLIDQ HPVSISYTAV ELAKQQFGEL
NGKGILIMGA GEMSTLTAKN LVAAGASTVL VSNRSYEKAI ILANEFSGRA VRFDDMDQYL
EEVDIVISAT ASTHFVLLPE RMQEVMSKRQ GRPMLLIDIA VPRDIHPEVG DIPLITLFDI
DDLRGVIDRH HQEREIAALS AEKIVDEEMH LFLKWHNSLF VVPTIVALQQ KGQQIKELQL
NRALERLGGL TPKQEKHVRS MANSIVNHLL HIPITNLKEY ATTSQGHLYT EILQNLFDLD
VEEETKRQVS VVNQHPGQVR HGRAE
//
