ID A0R1X8_MYCS2 Unreviewed; 434 AA.
AC A0R1X8;
DT 09-JAN-2007, integrated into UniProtKB/TrEMBL.
DT 09-JAN-2007, sequence version 1.
DT 27-MAR-2024, entry version 127.
DE RecName: Full=Nicotinate phosphoribosyltransferase {ECO:0000256|ARBA:ARBA00013236, ECO:0000256|RuleBase:RU365100};
DE EC=6.3.4.21 {ECO:0000256|ARBA:ARBA00013236, ECO:0000256|RuleBase:RU365100};
GN Name=pncB {ECO:0000313|EMBL:ABK70040.1};
GN OrderedLocusNames=MSMEG_4911 {ECO:0000313|EMBL:ABK70040.1};
OS Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) (Mycobacterium
OS smegmatis).
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycolicibacterium.
OX NCBI_TaxID=246196 {ECO:0000313|EMBL:ABK70040.1, ECO:0000313|Proteomes:UP000000757};
RN [1] {ECO:0000313|EMBL:ABK70040.1, ECO:0000313|Proteomes:UP000000757}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700084 / mc(2)155 {ECO:0000313|Proteomes:UP000000757};
RA Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C.,
RA Fraser C.M.;
RL Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the first step in the biosynthesis of NAD from
CC nicotinic acid, the ATP-dependent synthesis of beta-nicotinate D-
CC ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate.
CC {ECO:0000256|RuleBase:RU365100}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-phospho-alpha-D-ribose 1-diphosphate + ATP + H2O +
CC nicotinate = ADP + diphosphate + nicotinate beta-D-ribonucleotide +
CC phosphate; Xref=Rhea:RHEA:36163, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:32544, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57502, ChEBI:CHEBI:58017,
CC ChEBI:CHEBI:456216; EC=6.3.4.21;
CC Evidence={ECO:0000256|ARBA:ARBA00001240,
CC ECO:0000256|RuleBase:RU365100};
CC -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; nicotinate D-
CC ribonucleotide from nicotinate: step 1/1.
CC {ECO:0000256|ARBA:ARBA00004952, ECO:0000256|RuleBase:RU365100}.
CC -!- PTM: Transiently phosphorylated on a His residue during the reaction
CC cycle. Phosphorylation strongly increases the affinity for substrates
CC and increases the rate of nicotinate D-ribonucleotide production.
CC Dephosphorylation regenerates the low-affinity form of the enzyme,
CC leading to product release. {ECO:0000256|RuleBase:RU365100}.
CC -!- SIMILARITY: Belongs to the NAPRTase family.
CC {ECO:0000256|ARBA:ARBA00010897, ECO:0000256|RuleBase:RU365100}.
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DR EMBL; CP000480; ABK70040.1; -; Genomic_DNA.
DR RefSeq; WP_011730184.1; NC_018289.1.
DR RefSeq; YP_889166.1; NC_008596.1.
DR AlphaFoldDB; A0R1X8; -.
DR STRING; 246196.MSMEG_4911; -.
DR PaxDb; 246196-MSMEI_4784; -.
DR KEGG; msm:MSMEG_4911; -.
DR PATRIC; fig|246196.19.peg.4792; -.
DR eggNOG; COG1488; Bacteria.
DR OrthoDB; 9770610at2; -.
DR UniPathway; UPA00253; UER00457.
DR Proteomes; UP000000757; Chromosome.
DR GO; GO:0016757; F:glycosyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0004516; F:nicotinate phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009435; P:NAD biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR Gene3D; 3.20.140.10; nicotinate phosphoribosyltransferase; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR041525; N/Namide_PRibTrfase.
DR InterPro; IPR040727; NAPRTase_N.
DR InterPro; IPR007229; Nic_PRibTrfase-Fam.
DR InterPro; IPR006405; Nic_PRibTrfase_pncB.
DR InterPro; IPR036068; Nicotinate_pribotase-like_C.
DR NCBIfam; TIGR01513; NAPRTase_put; 1.
DR PANTHER; PTHR11098; NICOTINATE PHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR11098:SF8; NICOTINATE PHOSPHORIBOSYLTRANSFERASE PNCB1; 1.
DR Pfam; PF04095; NAPRTase; 1.
DR Pfam; PF17767; NAPRTase_N; 1.
DR PIRSF; PIRSF000484; NAPRT; 1.
DR SUPFAM; SSF51690; Nicotinate/Quinolinate PRTase C-terminal domain-like; 1.
DR SUPFAM; SSF54675; Nicotinate/Quinolinate PRTase N-terminal domain-like; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000313|EMBL:ABK70040.1};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|RuleBase:RU365100};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Pyridine nucleotide biosynthesis {ECO:0000256|ARBA:ARBA00022642,
KW ECO:0000256|RuleBase:RU365100};
KW Reference proteome {ECO:0000313|Proteomes:UP000000757};
KW Transferase {ECO:0000256|RuleBase:RU365100}.
FT DOMAIN 5..127
FT /note="Nicotinate phosphoribosyltransferase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF17767"
FT DOMAIN 149..343
FT /note="Nicotinate/nicotinamide phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF04095"
SQ SEQUENCE 434 AA; 45805 MW; C409A07947AB8A23 CRC64;
MTVALLTDKY ELTMLAAALR DGTAHRRTTF EVFARRLPEG RRYGVVAGTA RFLEALTQYR
FDPADLGLLR GFLDADTLDY LAGYRFGGDI DGYPEGELYF PGSPILSVHG TFAECVLLET
LVLSIFNHDT AIASAAARMA SAAQGRPLIE MGSRRTHEHA AVAAARAAYL AGFAGSSNLE
AQRRYGVPAL GTAAHAYTLL HTTASGPDEQ AAFRGQVAAL GTDTTLLVDT YDITAGVANA
IAAAGPKLGA VRIDSGDLGV LARQVRAQLD DLGATETKIV VSGDLDEYAI AALRAEPVDS
YGVGTSVVTG SGAPTASMVY KLVEVDGMPV AKRSSSKESH GGRKEALRVA KASGTIVEEV
VYPYGKPPQI ESPLTARKLT VPLVAGGKPV EGYSDDLSAA RERVRAGLHS LPWDGLKLSR
GEPAIPTRMT ADER
//
