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Merck
CN

L0520

乳铁蛋白 来源于人奶

≥85% (SDS-PAGE), lyophilized powder

别名:

Growth-inhibiting protein 12, Lactotransferrin, Talalactoferrin

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关于此项目

化学文摘社编号:
UNSPSC Code:
12352202
NACRES:
NA.61
MDL number:
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产品名称

乳铁蛋白 来源于人奶, ≥85% (SDS-PAGE), lyophilized powder

SMILES string

N([C@@H](C(C)C)C(=O)N[C@@H](C)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](C(C)C)C(=O)O)C(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](N)CC(=O)N)C)CC(=O)O

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

biological source

human milk

assay

≥85% (SDS-PAGE)

form

lyophilized powder

mol wt

82.4 kDa

composition

Protein, ≥90% biuret

technique(s)

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 accession no.

storage temp.

2-8°C

Quality Level

Gene Information

human ... LTF(4057)

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Analysis Note

包含铁,有关批次特异性信息,请参见检验报告。

Application

乳铁蛋白用于在铁限制培养基中生长变形链球菌 它用于测试乳铁蛋白是否在体外阻止上皮细胞粘附。

Biochem/physiol Actions

乳铁蛋白是一种铁结合蛋白。在结构上与血浆铁转运蛋白转铁蛋白相似;但是乳铁蛋白对铁的亲和力要高得多(250 倍)。在初乳中含量非常丰富,少量也可见于泪液、唾液、粘液分泌物和中性粒细胞的次级颗粒中。由粘膜上皮和中性粒细胞组成,在炎症刺激下由这些细胞释放。细菌的生长被其隔离铁的能力所抑制,也通过其 N 端与脂多糖结合使细菌细胞壁通透性增加。乳铁蛋白可以通过与病毒包膜蛋白紧密结合来抑制病毒感染。它通过阻断结合域阻止了细胞与病毒的融合。乳铁蛋白似乎部分通过刺激中性粒细胞激活剂白细胞介素-8 的释放来激活宿主防御系统。还可能参与抗体和白细胞介素合成、淋巴细胞增殖和补体激活。

Preparation Note

色谱纯化产品。

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

常规特殊物品
此项目有

历史批次信息供参考:

分析证书(COA)

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Liisa Kautto et al.
Experimental eye research, 145, 278-288 (2016-02-07)
The human eye is constantly bathed by tears, which protect the ocular surface via a variety of mechanisms. The O-linked glycans of tear mucins have long been considered to play a role in binding to pathogens and facilitating their removal
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Inflammation research : official journal of the European Histamine Research Society ... [et al.], 61(11), 1247-1255 (2012-07-20)
The aim of this study was to assess the utility of lactoferrin (LF), a natural immunomodulator, to restrain allergen-induced pleurisy in mice. BALB/c female mice, 8- to 10-week old, weighing 24 g on average, were used. Mice were immunized intraperitoneally
Jessica R Sheldon et al.
PLoS pathogens, 16(10), e1008995-e1008995 (2020-10-20)
Acinetobacter baumannii is an emerging pathogen that poses a global health threat due to a lack of therapeutic options for treating drug-resistant strains. In addition to acquiring resistance to last-resort antibiotics, the success of A. baumannii is partially due to
Shelton W Wright et al.
PLoS neglected tropical diseases, 14(8), e0008495-e0008495 (2020-08-09)
Melioidosis is an often-severe tropical infection caused by Burkholderia pseudomallei (Bp) with high associated morbidity and mortality. Burkholderia thailandensis (Bt) is a closely related surrogate that does not require BSL-3 conditions for study. Lactoferrin is an iron-binding glycoprotein that can
M T Pöllänen et al.
Journal of periodontal research, 33(1), 8-16 (1998-04-03)
In the process of host defence against microbial challenge, neutrophils release granule contents with the potential side effect of damaging structural tissues. In the junctional epithelium such damage may contribute to the degeneration and renewal of the epithelial cells attached

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