C9801
Casein, N,N-dimethylated from bovine milk
essentially salt-free, lyophilized powder
Recommended Products
biological source
bovine milk
Quality Level
Assay
≥90% (colorimetric)
form
essentially salt-free, lyophilized powder
technique(s)
activity assay: suitable
storage temp.
−20°C
InChI
1S/C81H125N22O39P/c1-36(2)31-50(76(132)94-43(15-24-57(87)108)71(127)101-52(34-64(120)121)78(134)98-49(81(137)138)11-7-8-30-82)99-72(128)47(19-28-61(114)115)95-77(133)51(33-63(118)119)100-73(129)48(20-29-62(116)117)97-80(136)65(37(3)104)103-75(131)44(16-25-58(88)109)92-68(124)42(14-23-56(86)107)90-67(123)41(13-22-55(85)106)91-69(125)45(17-26-59(110)111)93-70(126)46(18-27-60(112)113)96-79(135)53(35-142-143(139,140)141)102-74(130)40(12-21-54(84)105)89-66(122)39(83)32-38-9-5-4-6-10-38/h4-6,9-10,36-37,39-53,65,104H,7-8,11-35,82-83H2,1-3H3,(H2,84,105)(H2,85,106)(H2,86,107)(H2,87,108)(H2,88,109)(H,89,122)(H,90,123)(H,91,125)(H,92,124)(H,93,126)(H,94,132)(H,95,133)(H,96,135)(H,97,136)(H,98,134)(H,99,128)(H,100,129)(H,101,127)(H,102,130)(H,103,131)(H,110,111)(H,112,113)(H,114,115)(H,116,117)(H,118,119)(H,120,121)(H,137,138)(H2,139,140,141)
InChI key
BECPQYXYKAMYBN-UHFFFAOYSA-N
Gene Information
bovine ... CSN1S1(282208) , CSN1S2(282209) , CSN2(281099) , CSN3(281728)
General description
Application
- in the determination of general proteolytic activity
- as a substrate to study the effect of dephosphorylation on the calcium-activated neutral proteases (CANP) proteolysis of paired helical filaments (PHF) II-τ
- in transglutaminase (TG) assay
This preparation has less than 10% reactivity with 2,4,6-trinitrobenzenesulfonic acid (TNBS) compared to non-methylated casein.
Protease substrate that has been used to assay basilase and a subtilisin analog that had been produced by site-directed mutagenesis.
Biochem/physiol Actions
Preparation Note
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
Regulatory Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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How does the storage temperature relate to shipping conditions?
The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is Product C9801, N,N-dimethylated casein, soluble in?
The solubility has been tested at 10mg/mL in 0.1M Boric acid, resulting in a white haze.
What is the molecular weight of Product C9801, N,N-dimethylated casein?
Unfortunately, we have not determined the molecular weight. The molecular weight of casein is 26 kDa or less; the molecular weight of Product No. C9801 is expected to be a bit higher.
What is the purity of Product No. C9801, N,N-dimethylated casein?
This product is not sold by purity, but by the percent of N,N-methylation. It is required to be at least 90% methylated.
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