ID A0A143BJE9_9BACT Unreviewed; 487 AA.
AC A0A143BJE9;
DT 08-JUN-2016, integrated into UniProtKB/TrEMBL.
DT 08-JUN-2016, sequence version 1.
DT 24-JAN-2024, entry version 34.
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=GEMMAAP_06360 {ECO:0000313|EMBL:AMW04574.1};
OS Gemmatimonas phototrophica.
OC Bacteria; Gemmatimonadota; Gemmatimonadetes; Gemmatimonadales;
OC Gemmatimonadaceae; Gemmatimonas.
OX NCBI_TaxID=1379270 {ECO:0000313|EMBL:AMW04574.1, ECO:0000313|Proteomes:UP000076404};
RN [1] {ECO:0000313|EMBL:AMW04574.1, ECO:0000313|Proteomes:UP000076404}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AP64 {ECO:0000313|EMBL:AMW04574.1,
RC ECO:0000313|Proteomes:UP000076404};
RX PubMed=24821787; DOI=10.1073/pnas.1400295111;
RA Zeng Y., Feng F., Medova H., Dean J., Koblizek M.;
RT "Functional type 2 photosynthetic reaction centers found in the rare
RT bacterial phylum Gemmatimonadetes.";
RL Proc. Natl. Acad. Sci. U.S.A. 111:7795-7800(2014).
RN [2] {ECO:0000313|EMBL:AMW04574.1, ECO:0000313|Proteomes:UP000076404}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AP64 {ECO:0000313|EMBL:AMW04574.1,
RC ECO:0000313|Proteomes:UP000076404};
RX PubMed=26636755; DOI=10.1111/1758-2229.12363;
RA Zeng Y., Baumbach J., Barbosa E.G., Azevedo V., Zhang C., Koblizek M.;
RT "Metagenomic evidence for the presence of phototrophic Gemmatimonadetes
RT bacteria in diverse environments.";
RL Environ. Microbiol. Rep. 8:139-149(2016).
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; CP011454; AMW04574.1; -; Genomic_DNA.
DR RefSeq; WP_026850311.1; NZ_CP011454.1.
DR AlphaFoldDB; A0A143BJE9; -.
DR STRING; 1379270.GEMMAAP_06360; -.
DR GeneID; 78443756; -.
DR KEGG; gph:GEMMAAP_06360; -.
DR eggNOG; COG0373; Bacteria.
DR OrthoDB; 110209at2; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000076404; 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:UP000076404}.
FT DOMAIN 5..158
FT /note="Glutamyl-tRNA reductase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF05201"
FT DOMAIN 175..308
FT /note="Quinate/shikimate 5-dehydrogenase/glutamyl-tRNA
FT reductase"
FT /evidence="ECO:0000259|Pfam:PF01488"
FT DOMAIN 325..414
FT /note="Tetrapyrrole biosynthesis glutamyl-tRNA reductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF00745"
FT REGION 419..453
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 466..487
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 48
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-1"
FT BINDING 47..50
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 111
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 116..118
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 122
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-2"
FT BINDING 191..196
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 101
FT /note="Important for activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00087,
FT ECO:0000256|PIRSR:PIRSR000445-4"
SQ SEQUENCE 487 AA; 52494 MW; 4859CACB93D2AFE7 CRC64;
MLISIAIDFR FADVATRERF HLSEERLTQL YRTARTEAIT ESALISTCNR TELYAWVDSD
DPQVIERSIQ TLARRWMRTR SEGVQLLTTA TRRVGRDAAE HVVRIASGLE SQVLGDGQIL
GQLKAAYKRA SRGQAAGPVL HRLFETALRA GKRVQTETSL TAGRNSVGAE AAITASQRFG
NLENARCVVI GAGKTGARSA KQLHKLGARD IVVVNRTFEN AQNLAGMVGG RAAPWETLHV
ETAMADVVIV ATGSEVPVVE GAALQRAREA CAASGYALLM MDLSVPRNID PAVVDEPGVT
LIDLDTLHQP VLSAEVMRKD AVPHAETICA DETNAFMDWI ATMPARDAIK PLREALEDVA
RREVAFHSKD EGVAEKAASR IVAKLLAGPM AALRRALQRG EPLDQHAMML LEMFAPAEGA
GATQSRRTTG THRAVPAPAS VPKVSAARTP VAKAPVERTM RGDAAMKHAA PPTPHSNTPL
VTTQQFT
//
