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Key Documents

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C7078

Sigma-Aldrich

酪蛋白 来源于牛奶

powder

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About This Item

CAS号:
9000-71-9
EC號碼:
232-555-1
MDL號碼:
MFCD00081481
分類程式碼代碼:
12352202
NACRES:
NA.61

product name

酪蛋白 来源于牛奶, technical grade

生物源

bovine milk

品質等級

300

等級

technical grade

形狀

powder

技術

activity assay: suitable
electrophoresis: suitable
immunocytochemistry: suitable

mp

280 °C (dec.) (lit.)

UniProt登錄號

P02662
P02663
P02666

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 密鑰

BECPQYXYKAMYBN-UHFFFAOYSA-N

基因資訊

bovine ... CSN1S1(282208) , CSN1S2(282209) , CSN2(281099)

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一般說明

来自牛奶的酪蛋白是一种磷蛋白。酪蛋白有四种主要类型，约占牛奶总蛋白质的80％：α-s1 酪蛋白、 α-s2 酪蛋白、β-酪蛋白和 κ-酪蛋白。酪蛋白被认为是牛奶中的主要保护成分，由于具有天然的生物相容性和生物可降解性，被公认是安全的（GRAS）。

應用

来自牛奶的酪蛋白已用于：
  • 免疫化学中的阻断剂
  • 一种底物，以确定解聚素和角鲨毒液中的催化活性
  • 作为澄清剂，测试其对白葡萄酒蛋白质稳定性的影响

牛奶中的酪蛋白是一种磷蛋白。酪蛋白主要有四种类型，约占牛奶总蛋白的80%：α-s1 酪蛋白、α-s2 酪蛋白、β-酪蛋白和κ-酪蛋白。酪蛋白被认为是牛奶中主要的保护成分

生化／生理作用

部分消化的酪蛋白是生物活性肽的丰富来源，如β酪啡肽。然而，牛酪蛋白是不同质的；A1和B变异的确会导致产生β-酪啡肽7，但A2却不会。
酪蛋白因乳化、起泡、凝胶化、持水能力以及通过官能团与生物活性分子相互作用等特性，被应用于营养食品和各种配方，如水凝胶、薄膜、纳米胶束和纳米颗粒。这种蛋白质很容易获得，可以保护药物不被酶降解，而且无毒，因此酪蛋白有可能用于口服给药系统。

其他說明

本产品为技术级酪蛋白。与部分纯化酪蛋白产品相比，技术级酪蛋白蛋白杂质含量更高，脂肪含量更高。

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 1

個人防護裝備

Eyeshields, Gloves, type N95 (US)

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实验方案

Substrates Procedures

Our General Protease Assay Procedures and Substrates overview.

Enzymatic Assay of Ficin (EC 3.4.22.3)

This procedure may be used for all Ficin products.

Enzymatic Assay of Protease Using Casein As a Substrate

To standardize a procedure for the enzymatic assay of Protease using Casein as a substrate.

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