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Merck
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Key Documents

C3400

Sigma-Aldrich

酪蛋白 来源于牛奶

powder

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About This Item

CAS號碼:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352202
NACRES:
NA.61

生物源

bovine milk

品質等級

化驗

87-94% protein basis

形狀

powder

技術

activity assay: suitable
electrophoresis: suitable
immunocytochemistry: suitable

mp

280 °C (dec.) (lit.)

溶解度

H2O: insoluble (forms a cloudy suspension)

UniProt登錄號

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

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一般說明

酪蛋白(来源于牛奶)是一种磷蛋白,可形成三维超分子胶束。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。酪蛋白是一种两亲性蛋白质。

應用

来自牛奶的酪蛋白是一种磷蛋白。酪蛋白有四种主要类型,占牛奶中总蛋白质的约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。
牛奶酪蛋白已用于:
  • 作为啮齿类动物体内和体外消化实验中的固体食物样本
  • 制备P407-酪蛋白水凝胶,研究酪蛋白加入P407中对机械性能的影响
  • 配制预孵育溶液,提高量子点光稳定性,减少非特异性结合,用于海马体神经元单个突触囊泡的实时成像

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。
酪蛋白可用于食品行业,也有非食品类用途。具有乳化、发泡、稳定、保水和凝胶化作用。酪蛋白具有耐热耐酸性。它是啮齿类动物的必需膳食成分。

品質

基本没有维生素。

準備報告

乳酸使乙醇提取的New Zealand酪蛋白沉淀。

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)


分析證明 (COA)

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Sanjay K Gupta et al.
Journal of plant physiology, 165(7), 679-690 (2007-11-13)
The regulation of UDP-Glc pyrophosphorylase (UGPase) isozyme, UGP5, was investigated in potato tuber. The cDNA for UGP5 was cloned into the bacterial expression vector pET21d and recombinant (RC) enzyme was expressed in E. coli (BL21 star cells). The RC-UGP5 isozyme
Tauqeerunnisa Syeda et al.
Journal of Alzheimer's disease : JAD, 66(4), 1657-1682 (2018-11-27)
Recent investigations have demonstrated an important role of gut microbiota (GM) in the pathogenesis of Alzheimer's disease (AD). GM modulates a host's health and disease by production of several substances, including lipopolysaccharides (LPS) and short-chain fatty acids (SCFAs), among others.
Peng Wu et al.
Journal of food science, 82(6), 1387-1394 (2017-05-05)
Previously, a dynamic in vitro rat stomach system (DIVRS-I) designed based on the principles of morphological bionics was reported. The digestibilities of casein powder and raw rice particles were found to be lower than those in vivo due to perhaps
Encyclopedia of Food Chemistry (2019)
Louise Lacalendola Tundisi et al.
Pharmaceutical research, 38(3), 515-522 (2021-02-28)
Topical therapy of local disease (e.g. skin) is advantageous over oral therapy since there is less systemic drug distribution (so fewer side-effects), no first-pass effect, etc. However, patient compliance with topical therapy can be poor as it may require many

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