L0520

Lactoferrin from human milk

≥85% (SDS-PAGE), lyophilized powder

• 동의어(들): Growth-inhibiting protein 12, Lactotransferrin, Talalactoferrin
• CAS Number: 936541-36-5
• MDL number: MFCD00164307
• UNSPSC 코드: 12352202
• NACRES: NA.61

속성

• 생물학적 소스: human milk
• Quality Level: 200
• 분석: ≥85% (SDS-PAGE)
• 형태: lyophilized powder
• 분자량: 82.4 kDa
• 구성: Protein, ≥90% biuret
• 기술: microbiological culture: suitable
• solubility: phosphate buffer: 1 mg/mL, clear to slightly hazy (0.01 M phosphate buffer, 0.0027 M potassium chloride and 0.137 M sodium chloride, pH 7.4, at 25 °C)
• UniProt 수납 번호: P02788
• 저장 온도: 2-8°C
• InChI: 1S/C35H53N9O12/c1-16(2)27(43-33(53)23(14-26(47)48)41-25(46)15-38-29(49)18(5)39-31(51)21(36)13-24(37)45)34(54)40-19(6)30(50)42-22(12-20-10-8-7-9-11-20)32(52)44-28(17(3)4)35(55)56/h7-11,16-19,21-23,27-28H,12-15,36H2,1-6H3,(H2,37,45)(H,38,49)(H,39,51)(H,40,54)(H,41,46)(H,42,50)(H,43,53)(H,44,52)(H,47,48)(H,55,56)/t18-,19-,21-,22-,23-,27-,28-/m0/s1
• InChI key: QCBUWCQOKPLTDZ-PKRULZLPSA-N
• 유전자 정보: human ... LTF(4057)

설명

애플리케이션

Lactoferrin was used to grow Streptococcus mutans in an iron-limiting medium. It was used to test if lactoferrin impedes epithelial cell adhesion in vitro.

생화학적/생리학적 작용

Lactoferrin is an iron binding protein. It is structurally similar to transferrin, the plasma iron transport protein; but lactoferrin has a much higher affinity for iron (250 fold). It is very abundant in colostrum and small amounts can also be found in tears, saliva, mucous secretions and in the secondary granules of neutrophils. It is made by mucosal epithelium and neutrophils and is released by these cells in response to inflammatory stimuli. Bacterial growth is inhibited by its ability to sequester iron and also permeabilize bacterial cell walls by binding to lipopolysaccharides through its N-terminus. Lactoferrin can inhibit viral infection by binding tightly to the viral envelope protein. This prevents cell-virus fusion by blocking the binding domain. Lactoferrin appears to activate host defense systems in part by stimulating the release of interleukin-8, a neutrophil activator. It may also be involved in antibody and interleukin synthesis, lymphocyte proliferation and complement activation.

품질

Contains iron, see certificate of analysis for lot specific information.

제조 메모

Chromatographically purified.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable