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pncB2

Gene
pncB2
Protein
Nicotinate phosphoribosyltransferase pncB2
Organism
Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)
Length
463 amino acids
Function
Involved in the Preiss-Handler pathway, which is a recycling route that permits the salvage of free nicotinamide (NM) and nicotinic acid (Na) involved in the NAD biosynthesis. Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP. It is not able to use nicotinamide. PncB2 appears to be responsible for the increased salvage synthesis of NAD during infection of host tissues (By similarity).
Similarity
Belongs to the NAPRTase family.
Mass
50.509 kDa
Sequence
MAIRQHVGALFTDLYEVTMAQAYWAERMSGTAVFEIFFRKLPPGRSYIMAAGLADVVEFLEAFRFDEQDLRYLRGLGQFSDEFLRWLAGVRFTGDVWAAPEGTVIFPNEPAVQLIAPIIEAQLVETFVLNQIHLQSVLASKAARVVAAARGRPVVDFGARRAHGTDAACKVARTSYLAGAAGTSNLLAARQYGIPTFGTMAHSFVQAFDSEVAAFEAFARLYPATMLLVDTYDTLRGVDHVIELAKRLGNRFDVRAVRLDSGDLDELSKATRARLDTAGLEQVEIFASSGLDENRIAALLAARCPIDGFGVGTQLVVAQDAPALDMAYKLVAYDGSGRTKFSSGKVIYPGRKQVFRKLEHGVFCGDTLGEHGENLPGDPLLVPIMTNGRRIRQHAPTLDGARDWARQQIDALPPELRSLEDTGYSYPVAVSDRIVGELARLRHADTAEAHPGSNVVGAKAKRP

Gene
pncB2
Protein
Nicotinate phosphoribosyltransferase pncB2
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Length
463 amino acids
Function
Involved in the Preiss-Handler pathway, which is a recycling route that permits the salvage of free nicotinamide (NM) and nicotinic acid (Na) involved in the NAD biosynthesis. Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP. It is not able to use nicotinamide. PncB2 appears to be responsible for the increased salvage synthesis of NAD during infection of host tissues.
Similarity
Belongs to the NAPRTase family.
Mass
50.509 kDa
Sequence
MAIRQHVGALFTDLYEVTMAQAYWAERMSGTAVFEIFFRKLPPGRSYIMAAGLADVVEFLEAFRFDEQDLRYLRGLGQFSDEFLRWLAGVRFTGDVWAAPEGTVIFPNEPAVQLIAPIIEAQLVETFVLNQIHLQSVLASKAARVVAAARGRPVVDFGARRAHGTDAACKVARTSYLAGAAGTSNLLAARQYGIPTFGTMAHSFVQAFDSEVAAFEAFARLYPATMLLVDTYDTLRGVDHVIELAKRLGNRFDVRAVRLDSGDLDELSKATRARLDTAGLEQVEIFASSGLDENRIAALLAARCPIDGFGVGTQLVVAQDAPALDMAYKLVAYDGSGRTKFSSGKVIYPGRKQVFRKLEHGVFCGDTLGEHGENLPGDPLLVPIMTNGRRIRQHAPTLDGARDWARQQIDALPPELRSLEDTGYSYPVAVSDRIVGELARLRHADTAEAHPGSNVVGAKAKRP

Gene
pncB2
Protein
Nicotinate phosphoribosyltransferase 2
Organism
Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
Length
398 amino acids
Function
Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP.
Similarity
Belongs to the NAPRTase family.
Mass
45.691 kDa
Sequence
MAESAFSERIVQNLLDTDFYKLTMMQAVLHNYPNAEVEWEFRCRNQEDLRLYLPAIREQLEYLAGLAISDEQLAFLERIPFLAPDFIRFLGLFRFNPRYVQTGIENDEFFLRLKGPWLHVILFEVPLLAMISEVRNRARYPAATVEQARERLQEKFDWLRREASAEELAGFKMADFGTRRRFSYRVHEAVVSGLKEDFPGCFVGTSNVHLARKLDLKPLGTMAHEWLMAHQQLGPRLIDSQSAALDCWVREYRGLLGIALTDCITTDAFLRDFDLYFAKLFDGLRHDSGDPLLWAEKTIAHYLKLGIDPLTKTLVFSDGLDLPRALKIYRALQGRINVSFGIGTHFTCDLPGVEPMNIVVKMSACNGHPVAKISDTPGKAQCRDPDFIHYLKHVFQVA