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Key Documents

C5679

Sigma-Aldrich

Casein from bovine milk

BioReagent, suitable for insect cell culture

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.75

biological source

bovine milk

Quality Level

product line

BioReagent

form

powder

technique(s)

cell culture | insect: suitable

mp

280 °C (dec.) (lit.)

UniProt accession no.

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

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General description

Casein is a calcium phosphate-binding phosphoprotein present in mammalian milk. It constitutes about 80% of the total bovine milk. Bovine milk is made of four types of casein such as, αs1-, αs2-, β-, and κ-caseins.

Application

Casein from bovine milk has been used as a component of normal medium for Drosophila culture , in the preparation of αS1-casein (CAS1_Bovin) , as a source of nitrogen (N) in experiment diets .

Biochem/physiol Actions

Partial gastrointestinal digestion of casein is a rich source of bioactive peptides, such as β-casomorphin. However, bovine casein is not homogeneous; variants A1 and B do lead to production of β-casomorphin 7 production, while A2 does not.
Numerous experimental applications including use as a blocking agent in immunochemistry, recovery of enzyme activity from SDS extracted samples, and as a substrate for protease and kinase assays.

Quality

essentially vitamin free

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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T cell recognition pattern of bovine milk alphaS1-casein and its peptides
Elsayed S, et al.
Molecular Immunology, 41(12) (2004)
Effects of synthetic diets enriched in specific nutrients on Drosophila development, body fat, and lifespan
Reis T
Testing, 11(1), 71-71 (2016)
Casein and Peptides Derived from Casein as Antileukaemic Agents
Ledesma M E, et al.
Journal of Oncology, 2019(4), 71-71 (2019)
Potential of casein as a carrier for biologically active agents
Glkab T K and Boratynski J
Topics in Current Chemistry, 375(4), 71-71 (2017)
S Elsayed et al.
Molecular immunology, 41(12), 1225-1234 (2004-10-16)
T cell recognition patterns of CAS1_Bovin, its limited hydrolysis, oxidized, reduced/alkylated, cyanogen bromide cleavage fractions and synthetic peptides were examined. Thirteen overlapping peptides covering the intact molecule, with chain lengths varied between 17 and 20 AA, were prepared by f-moc

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