PDXT_MYCA9
ID PDXT_MYCA9 Reviewed; 193 AA.
AC B1MCJ8;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 29-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=Pyridoxal 5'-phosphate synthase subunit PdxT {ECO:0000255|HAMAP-Rule:MF_01615};
DE EC=4.3.3.6 {ECO:0000255|HAMAP-Rule:MF_01615};
DE AltName: Full=Pdx2 {ECO:0000255|HAMAP-Rule:MF_01615};
DE AltName: Full=Pyridoxal 5'-phosphate synthase glutaminase subunit {ECO:0000255|HAMAP-Rule:MF_01615};
DE EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_01615};
GN Name=pdxT {ECO:0000255|HAMAP-Rule:MF_01615}; OrderedLocusNames=MAB_2890c;
OS Mycobacteroides abscessus (strain ATCC 19977 / DSM 44196 / CIP 104536 / JCM
OS 13569 / NCTC 13031 / TMC 1543) (Mycobacterium abscessus).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacteroides; Mycobacteroides abscessus.
OX NCBI_TaxID=561007;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 19977 / DSM 44196 / CIP 104536 / JCM 13569 / NCTC 13031 / TMC
RC 1543;
RX PubMed=19543527; DOI=10.1371/journal.pone.0005660;
RA Ripoll F., Pasek S., Schenowitz C., Dossat C., Barbe V., Rottman M.,
RA Macheras E., Heym B., Herrmann J.L., Daffe M., Brosch R., Risler J.L.,
RA Gaillard J.L.;
RT "Non mycobacterial virulence genes in the genome of the emerging pathogen
RT Mycobacterium abscessus.";
RL PLoS ONE 4:E5660-E5660(2009).
CC -!- FUNCTION: Catalyzes the hydrolysis of glutamine to glutamate and
CC ammonia as part of the biosynthesis of pyridoxal 5'-phosphate. The
CC resulting ammonia molecule is channeled to the active site of PdxS.
CC {ECO:0000255|HAMAP-Rule:MF_01615}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=aldehydo-D-ribose 5-phosphate + D-glyceraldehyde 3-phosphate +
CC L-glutamine = H(+) + 3 H2O + L-glutamate + phosphate + pyridoxal 5'-
CC phosphate; Xref=Rhea:RHEA:31507, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29985, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58273, ChEBI:CHEBI:58359, ChEBI:CHEBI:59776,
CC ChEBI:CHEBI:597326; EC=4.3.3.6; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01615};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01615};
CC -!- PATHWAY: Cofactor biosynthesis; pyridoxal 5'-phosphate biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_01615}.
CC -!- SUBUNIT: In the presence of PdxS, forms a dodecamer of heterodimers.
CC Only shows activity in the heterodimer. {ECO:0000255|HAMAP-
CC Rule:MF_01615}.
CC -!- SIMILARITY: Belongs to the glutaminase PdxT/SNO family.
CC {ECO:0000255|HAMAP-Rule:MF_01615}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CU458896; CAM62969.1; -; Genomic_DNA.
DR AlphaFoldDB; B1MCJ8; -.
DR SMR; B1MCJ8; -.
DR MEROPS; C26.A32; -.
DR EnsemblBacteria; CAM62969; CAM62969; MAB_2890c.
DR KEGG; mab:MAB_2890c; -.
DR OMA; VFIRAPI; -.
DR UniPathway; UPA00245; -.
DR Proteomes; UP000007137; Chromosome.
DR GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0036381; F:pyridoxal 5'-phosphate synthase (glutamine hydrolysing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006543; P:glutamine catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0042823; P:pyridoxal phosphate biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01749; GATase1_PB; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR HAMAP; MF_01615; PdxT; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR002161; PdxT/SNO.
DR InterPro; IPR021196; PdxT/SNO_CS.
DR PANTHER; PTHR31559; PTHR31559; 1.
DR Pfam; PF01174; SNO; 1.
DR PIRSF; PIRSF005639; Glut_amidoT_SNO; 1.
DR SUPFAM; SSF52317; SSF52317; 1.
DR TIGRFAMs; TIGR03800; PLP_synth_Pdx2; 1.
DR PROSITE; PS01236; PDXT_SNO_1; 1.
DR PROSITE; PS51130; PDXT_SNO_2; 1.
PE 3: Inferred from homology;
KW Glutamine amidotransferase; Hydrolase; Lyase; Pyridoxal phosphate.
FT CHAIN 1..193
FT /note="Pyridoxal 5'-phosphate synthase subunit PdxT"
FT /id="PRO_1000215719"
FT ACT_SITE 80
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 173
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 175
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 48..50
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 109
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 137..138
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
SQ SEQUENCE 193 AA; 20536 MW; 6FA0F1163C37D2F9 CRC64;
MSPLVGVLAL QGDVREHVAA LKDSGAEALG VRRPEELGKV DGLVIPGGES TTMSNLLRVF
ELLDPLTERL RAGLPVYGSC AGMILLASEI LDTRPDAVAL GAIDMTVRRN AFGRQVDSFE
GDLDFTGVDG AMHAVFIRAP WVERVGDDVE VLASAQGHPV AVRQGSALAT AFHPEVTGDR
RVHQLFVDMV RAG
