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L3770

乳铁蛋白 来源于人奶

Iron saturated, ≥85% (SDS-PAGE)

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化学文摘社编号:
936541-36-5
UNSPSC Code:
12352202
NACRES:
NA.61
MDL number:
MFCD00164307
Form:
powder
Assay:
≥85% (SDS-PAGE)
Biological source:
human milk
Mol wt:
82.4 kDa
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biological source

human milk

Quality Level

200

assay

≥85% (SDS-PAGE)

form

powder

mol wt

82.4 kDa

Iron content

0.15-1.0%

technique(s)

microbiological culture: suitable

solubility

phosphate buffer: 10 mg/mL at 25 °C (0.01 M phosphate buffer, 0.0027 M potassium chloride and 0.137 M sodium chloride, pH 7.4)

UniProt accession no.

P02788

storage temp.

2-8°C

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

Gene Information

human ... LTF(4057)

Application

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. It was also used to test the diagnostic value of blood cytokine concentrations in acute pneumonia.

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。

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法规信息

高风险级别生物产品--人源产品

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分析证书(COA)

Lot/Batch Number
SLCL4140
SLBV6725
SLBS3176V
SLBP7871V
SLBM7770V

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P Kragsbjerg et al.
Thorax, 50(12), 1253-1257 (1995-12-01)
The role of cytokines in the pathogenesis of pneumonia is still poorly understood. In a previous study the diagnostic value of measuring blood concentrations of interleukin 6 and interferon gamma was established. In the present study the value of blood
Cécile Frolet et al.
BMC microbiology, 10, 190-190 (2010-07-14)
Streptococcus pneumoniae is a widely distributed commensal Gram-positive bacteria of the upper respiratory tract. Pneumococcal colonization can progress to invasive disease, and thus become lethal, reason why antibiotics and vaccines are designed to limit the dramatic effects of the bacteria
Growth of Streptococcus mutans in an iron-limiting medium.
Grace A. Spatafora, Meagan W. Moore
Methods in Cell Science : An Official Journal of the Society for In Vitro Biology, 20, 217-221 (1998)
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货号GTIN
L3770-100MG04061833952344
L3770-25MG04061833952351
L3770-5MG04061833263297