6.3.4.21: nicotinate phosphoribosyltransferase

This is an abbreviated version!
For detailed information about nicotinate phosphoribosyltransferase, go to the full flat file.

Word Map on EC 6.3.4.21

6.3.4.21

salvage

nampt

2.4.2.11

quinolinate

nicotinamidase

deamidase

preiss-handler

nmnat

medicine

Reaction

Synonyms

EC 2.4.2.11, LOC_Os03g62110, More, NA phosphoribosyltransferase, NAPRT, NaPRT1, NAPRTase, niacin ribonucleotidase, nicotinate phosphoribosyltransferase, nicotinate phosphoribosyltransferases, nicotinate-nucleotide:pyrophosphate phospho-alpha-D-ribosyltransferase, nicotinic acid mononucleotide glycohydrolase, nicotinic acid mononucleotide pyrophosphorylase, nicotinic acid phosphoribosyltransferase, NPRTase, pncB

ECTree

6 Ligases

6.3 Forming carbon-nitrogen bonds

6.3.4 Other carbon-nitrogen ligases

6.3.4.21 nicotinate phosphoribosyltransferase

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Results	in table
11	Activating Compound
35699	AA Sequence
1	Application
1	CAS Registry Number
13	Cloned(Commentary)
46	Cofactor
3	Crystallization (Commentary)
88	Disease/ Diagnostics
1	Expression
1	General Information
9	General Stability
1	IC50 Value
60	Inhibitors
4	kcat/KM [mM/s]
41	KM Value [mM]
5	Localization
31	Metals/Ions
22	Molecular Weight [Da]
19	Natural Substrates/ Products (Substrates)
49	Organism
7	Pathway
2	PDB ID
8	pH Optimum
5	pH Range
3	pH Stability
13	Protein Variants
17	Purification (Commentary)
5	Reaction
5	Reaction Type
42	Reference
54	Source Tissue
24	Specific Activity [micromol/min/mg]
8	Storage Stability
62	Substrates and Products (Substrate)
11	Subunits
57	Synonyms
1	Systematic Name
11	Temperature Optimum [°C]
3	Temperature Stability [°C]
5	Turnover Number [1/s]

Specific Activity

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Specific Activity on EC 6.3.4.21 - nicotinate phosphoribosyltransferase

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0.0012

0.0169

+/-0.006 micromol/min/mg, with respect to nicotinic acid, in presence of 1 mM NAD+, 80 ng enzyme, 10-70 microM nicotinamide, 0.3 mM PRPP, 30 min, 37°C, TLC-based quantification

680797

0.0186

Homo sapiens

Q6XQN6

+/-0.006 micromol/min/mg, with respect to nicotinic acid, 80 ng enzyme, 10-70 microM nicotinamide, 0.3 mM PRPP, 30 min, 37°C, TLC-based quantification

680797

0.0226

Homo sapiens

Q6XQN6

+/-0.0016 micromol/min/mg, with respect to 5-phospho-alpha-D-ribose 1-diphosphate, in presence of 1 mM NAD+, 20 ng enzyme, 40 microM nicotinamide, 0.14-1 microM PRPP, 15 min, 37°C, TLC-based quantification

680797

0.0236

Homo sapiens

Q6XQN6

+/-0.0015 micromol/min/mg, with respect to 5-phospho-alpha-D-ribose 1-diphosphate, 20 ng enzyme, 40 microM nicotinamide, 0.14-1 microM PRPP, 15 min, 37°C, TLC-based quantification

0.052

0.08

recombinant enzyme from Escherichia coli strain BA203, pH and temperature not specified in the publication

0.095

crude extract

0.7

0.74

recombinant enzyme from Escherichia coli strain BA204, pH and temperature not specified in the publication

1.01

10.54

12.24

recombinant enzyme from Escherichia coli strain BA207, pH and temperature not specified in the publication

726892

160.5

Sus scrofa

DEAE-Sephadex fraction

637754

17.31

Escherichia coli

recombinant enzyme from Escherichia coli strain BA206, pH and temperature not specified in the publication

727386

18.74

Escherichia coli

P18133

recombinant enzyme from Escherichia coli strain BA016, pH and temperature not specified in the publication

726780

2.3

Saccharomyces cerevisiae

637750

23.72

Escherichia coli

recombinant enzyme from Escherichia coli strain BA207, pH and temperature not specified in the publication

727386

Salmonella enterica subsp. enterica serovar Typhimurium

421.2

Sephacryl fraction

457.3

phenyl-Sepharose fraction

637754