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045448 NRK1, Recombinant, Human, aa1-199, His-Tag (Nicotinamide Riboside Kinase 1, NRK 1, NmR-K 1, Nicotinic Acid Riboside Kinase 1, Ribosylnicotinamide Kinase 1, RNK 1, Ribosylnicotinic Acid Kinase 1, NMRK1, C9orf95) CAS:

Specifications
References
Grade
Purified
Molecular Weight
25.6
EU Commodity Code
30021019
Shipping Temp
Blue Ice
Storage Temp
-20°C

NRK1 belongs to the uridine kinase family. NAD+ is essential for life in all organisms, both as a coenzyme for oxidoreductases and as a source of ADPribosyl groups used in various reactions, including those that retard aging in experimental systems. Nicotinic acid and nicotinamide were defined as the vitamin precursors of NAD+. This enzyme catalyzes the phosphorylation of nicotinamide riboside (NR) and nicotinic acid riboside (NaR) to form nicotinamide mononucleotide (NMN) and nicotinic acid mononucleotide (NaMN). The enzyme also phosphorylates the antitumor drugs tiazofurin and 3-deazaguanosine.

Recombinant protein corresponding to aa1-199 from human NRK1, fused to His-tag at N-terminus, expressed in E.coli.
Molecular Weight
~25.6kD (222aa) confirmed by MALDI-TOF
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMKTFIIG ISGVTNSGKT TLAKNLQKHL PNCSVISQDD FFKPESEIET DKNGFLQYDV LEALNMEKMM SAISCWMESA RHSVVSTDQE SAEEIPILII EGFLLFNYKP LDTIWNRSYF LTIPYEECKR RRSTRVYQPP DSPGYFDGHV WPMYLKYRQE MQDITWEVVY LDGTKSEEDL FLQVYEDLIQ ELAKQKCLQV TA
Enzyme Activity
Not determined. This product is recommended for use in applications that do not require a catalytically active form of the protein.
Storage and Stability
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Source
Recombinant, E. coli
Purity
≥90% (SDS-PAGE)
Concentration
~0.5mg/ml
Form
Supplied as a liquid in 20mM Tris-HCl, pH 8.0, 2mM DTT, 200mM sodium chloride, 10% glycerol.
Important Note
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
References
1. Bieganowski P, et al.(2004) Cell. 14;117(4):495-502. 2. Khan JA, et al. (2007) Structure. 15(8):1005-13.
USBio References
No references available
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