HEM1_MYCPA
ID HEM1_MYCPA Reviewed; 459 AA.
AC Q73SS1;
DT 01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 118.
DE RecName: Full=Glutamyl-tRNA reductase {ECO:0000255|HAMAP-Rule:MF_00087};
DE Short=GluTR {ECO:0000255|HAMAP-Rule:MF_00087};
DE EC=1.2.1.70 {ECO:0000255|HAMAP-Rule:MF_00087};
GN Name=hemA {ECO:0000255|HAMAP-Rule:MF_00087}; OrderedLocusNames=MAP_4002;
OS Mycolicibacterium paratuberculosis (strain ATCC BAA-968 / K-10)
OS (Mycobacterium paratuberculosis).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; Mycobacterium avium complex (MAC).
OX NCBI_TaxID=262316;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-968 / K-10;
RX PubMed=16116077; DOI=10.1073/pnas.0505662102;
RA Li L., Bannantine J.P., Zhang Q., Amonsin A., May B.J., Alt D., Banerji N.,
RA Kanjilal S., Kapur V.;
RT "The complete genome sequence of Mycobacterium avium subspecies
RT paratuberculosis.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:12344-12349(2005).
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; AE016958; AAS06552.1; -; Genomic_DNA.
DR RefSeq; WP_003879324.1; NC_002944.2.
DR AlphaFoldDB; Q73SS1; -.
DR SMR; Q73SS1; -.
DR STRING; 262316.MAP_4002; -.
DR EnsemblBacteria; AAS06552; AAS06552; MAP_4002.
DR GeneID; 66695723; -.
DR KEGG; mpa:MAP_4002; -.
DR eggNOG; COG0373; Bacteria.
DR HOGENOM; CLU_035113_2_2_11; -.
DR OMA; FAFKCAA; -.
DR UniPathway; UPA00251; UER00316.
DR Proteomes; UP000000580; 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..459
FT /note="Glutamyl-tRNA reductase"
FT /id="PRO_0000114041"
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 109
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 114..116
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 120
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT BINDING 189..194
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
FT SITE 99
FT /note="Important for activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00087"
SQ SEQUENCE 459 AA; 47934 MW; A4FC1D1FA5C3E05F CRC64;
MSVLLFGVSH RSAPVSVLEQ LSIDESDHGK IVDRVLQSPL VTEAMVLSTC NRVEVYAVVD
AFHGGLAVIG QVLSDHSGMS MSDLTKYAYV RYSEAAVEHL FAVASGLDSA VIGEQQVLGQ
VRRAYATAET NRTVGRVLHE LAQRALSVGK RVHSETAIDA AGASVVSVAL DMADRRLGGL
AGKTAVLVGA GAMGALAAAH LSRAGIGQVH VLNRSLSRAQ RLVRKIRETG VRADALPLEH
LADALAGADV VVSCTGAVSP VVSLADVHHA LAAAGRSAAD ETAHPLVICD LGMPRDVDPA
VAGLPGVWVV DVDRVQHEPS AHAAAADVDA ARTIVATEVA AYLAGQRMAE VTPTVTALRQ
RAADVVEAEL LRLDNRLPGL DSAHREEVAR TVRRVVDKLL HAPTVRIKQL ASAPGGDSYA
EALRELFELD QTAVDAVAAG ELPVIATGFD AGAPQQPTE
