NAAD sodium (Deamido nad sodium), a functional NAD⁺ precursor, is the substrate of glutamine-dependent NAD⁺ synthetase. NAAD sodium is used to study the structure of nicotinate mononucleotide adenylyltransferases^[1][2].

In peripheral blood mononuclear cells (PBMC), NAAD sodium is only expected to be produced in biosynthesis of NAD⁺ from tryptophan and NA2, was elevated from less than 20 nM to as high as 0.91 μM^[1].
Nicotinamide adenine dinucleotide synthetases (NADS) catalyze the amidation of nicotinic acid adenine dinucleotide (NAAD) to yield the enzyme cofactor nicotinamide adenine dinucleotide (NAD)^[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

In mice, when nicotinic acid (NA) is provided by oral gavage, liver NA peaked (340 pmol/mg) in 15 min. Hepatic NA appearance is followed by an expected peak of 220 NAAD sodium at 1 h post gavage and a rise in hepatic NAD⁺ from 990 baseline to 2200 at 2 h^[1].
NAAD sodium is reported in mouse liver when 500 mg/kg of radioactive nicotinamide (Nam) is injected intraperitoneally (IP) into the body cavity of mice. However, NAAD sodium is observed in kidneys, ovaries, lung, heart and brain in addition to liver in mice IP-injected with 500 mg/kg of NA but not Nam^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

686.39

C₂₁H₂₅N₆NaO₁₅P₂

104809-30-5

固体

White to off-white

烟酸腺嘌呤二核苷酸钠盐

• Others

• 内源性代谢物

Room temperature in continental US; may vary elsewhere.

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

H₂O 中的溶解度 : 100 mg/mL (145.69 mM; 超声助溶)

DMSO 中的溶解度 : 10 mg/mL (14.57 mM; 超声助溶 (<60°C); 吸湿的 DMSO 对产品的溶解度有显著影响，请使用新开封的 DMSO)

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C储存时，请在6个月内使用，-20°C储存时，请在1个月内使用。

* 备注：如您选择水作为储备液，请稀释至工作液后，再用 0.22 μm 的滤膜过滤除菌后使用。

• 方案 一

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% Saline

  Solubility: ≥ 1 mg/mL (1.46 mM); 澄清溶液

  此方案可获得 ≥ 1 mg/mL（饱和度未知）的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 10.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；再向上述体系中加入 50 μL Tween-80，混合均匀；然后再继续加入 450 μL 生理盐水 定容至 1 mL。

  生理盐水的配制：将 0.9 g 氯化钠，溶解于 ddH₂O 并定容至 100 mL，可以得到澄清透明的生理盐水溶液。

• 方案 二

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in Saline)

  Solubility: ≥ 1 mg/mL (1.46 mM); 澄清溶液

  此方案可获得 ≥ 1 mg/mL（饱和度未知）的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 10.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液 中，混合均匀。

  20% SBE-β-CD in Saline 的配制（4°C，储存一周）：2 g SBE-β-CD（磺丁基醚 β-环糊精）粉末定容于 10 mL 的生理盐水中，完全溶解至澄清透明。

• 方案 三

  请依序添加每种溶剂： 10% DMSO    90% Corn Oil

  Solubility: ≥ 1 mg/mL (1.46 mM); 澄清溶液

  此方案可获得 ≥ 1 mg/mL（饱和度未知）的澄清溶液，此方案实验周期在半个月以上的动物实验酌情使用。

  以 1 mL 工作液为例，取 100 μL 10.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Samuel A J Trammell, et al. Nicotinamide riboside is uniquely and orally bioavailable in mice and humans. Nat Commun. 2016 Oct 10;7:12948.  [Content Brief]

  [2]. J Biol Chem. 2005 Apr 15;280(15):15131-40. Ralf Jauch, et al. Structures of Escherichia coli NAD synthetase with substrates and products reveal mechanistic rearrangements.  [Content Brief]