Skip to Content
Merck
All Photos(1)

Documents

L4040

Sigma-Aldrich

Lactoferrin human

recombinant, expressed in rice, Partially iron saturated, ≥90% (SDS-PAGE)

Synonym(s):

Growth-inhibiting protein 12, Lactotransferrin, Talalactoferrin

Sign Into View Organizational & Contract Pricing


About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

human

Quality Level

recombinant

expressed in rice

Assay

≥70% protein basis (Bradford)
≥90% (SDS-PAGE)

form

powder

technique(s)

microbiological culture: suitable

solubility

H2O: soluble 10 mg/mL

UniProt accession no.

storage temp.

2-8°C

Gene Information

human ... LTF(4057)

Looking for similar products? Visit Product Comparison Guide

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

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
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
Chuang Guo et al.
Food & function, 11(8), 7183-7196 (2020-08-07)
Lactoferrin (Lf), an iron-binding glycoprotein, has been shown to possess antioxidant and anti-inflammatory properties and exert modulatory effects on lipid homeostasis and non-alcoholic fatty liver disease (NAFLD), but our understanding of its regulatory mechanisms is limited and inconsistent. We used
Thuy Nguyen Thi Dao et al.
Journal of extracellular vesicles, 11(2), e12195-e12195 (2022-02-22)
Cancer cell-derived extracellular vesicles (EVs) are promising biomarkers for cancer diagnosis and prognosis. However, the lack of rapid and sensitive isolation techniques to obtain EVs from clinical samples at a sufficiently high yield limits their practicability. Chimeric nanocomposites of lactoferrin
Zhongnan Xiao et al.
Redox biology, 50, 102256-102256 (2022-02-09)
Diabetic hyperglycemia aggravates the prognosis of intracerebral hemorrhagic stroke (ICH) in the clinic. In addition to hematoma expansion and increased inflammation, how diabetic hyperglycemia affects the outcomes of ICH is still unclear. We found that streptozotocin-induced diabetic hyperglycemia not only

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service