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Safety Information

T2252

Sigma-Aldrich

apo-Transferrin human

≥95% protein basis (biuret)

Synonym(s):

Human transferrin, Siderophilin

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About This Item

CAS Number:
11096-37-0
EC Number:
234-318-8
MDL number:
MFCD00130536
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

human

Quality Level

200

Assay

≥95% protein basis (biuret)
≥98% (agarose gel electrophoresis)

form

powder

mol wt

76-81 kDa

technique(s)

cell culture | mammalian: suitable

solubility

H2O: 50 mg/mL

UniProt accession no.

P02787

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... TF(7018)

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General description

Transferrin is a bilobed glycoprotein containing an N-terminal lobe and a C-terminal lobe. Each of these domains is divided into two sub-domains and within the inter subdomain cleft is the metal-binding site. A single transferrin molecule can bind to two ferric ions. Apo-transferrin is an iron-free form.

Application

Apo-transferrin has been shown to strongly inhibit bacterial adhesion to biomaterials including polystyrene, polymethylmethacrylate, and silicone. Inhibition was seen at twenty micrograms/ml in culture medium.
apo-Transferrin human has been used in Dulbecco′s Modified Eagle Medium/Nutrient Mixture F-12 to culture:
  • pancreatic ductal adenocarcinoma (PDAC) cell lines
  • oligodendrocytes
  • renal proximal tubule epithelial cells (RPTEC/TERT1) cells

Biochem/physiol Actions

Transferrin transports iron through receptor-mediated endocytosis. The iron transport mechanism occurs in the endothelial cells of the blood-brain barrier. Transferrin maintains iron homeostasis and is an iron-associated marker. Reduced levels of transferrin are observed in severe COVID-19 conditions. It may bind to other molecules apart from iron, hence it can be used in targeted drug delivery.

Other Notes

Non-heme iron-transport protein.

Disclaimer

RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

T2252-100MG:
2020150:
T2252-VAR:
T2252-500MG:
T2252-PM:
T2252-BULK:
T2252-5G:
T2252-1G:

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’.

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Camila Campos-Escamilla et al.
International journal of molecular sciences, 22(24) (2021-12-25)
Human serum transferrin (Tf) is a bilobed glycoprotein whose function is to transport iron through receptor-mediated endocytosis. The mechanism for iron release is pH-dependent and involves conformational changes in the protein, thus making it an attractive system for possible biomedical
Jacob M Smigiel et al.
Molecular cancer research : MCR, 15(4), 478-488 (2017-01-06)
Pancreatic ductal adenocarcinoma (PDAC) is referred to as a silent killer due to the lack of clear symptoms, a lack of early detection methods, and a high frequency of metastasis at diagnosis. In addition, pancreatic cancer is remarkably resistant to
Agostina Nardone et al.
Cell and tissue banking, 10(4), 301-308 (2009-02-03)
In breast cancer, various clinical parameters are assessed to define clinical stage and thus obtain a more accurate prognosis. However, banks of tumor tissues are an important source of material for studies of risk of recurrence and of features governing
Catherine Claise et al.
International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 116, 74-79 (2021-12-25)
Mounting evidence links hyperinflammation in gravely ill patients to low serum iron levels and hyperferritinemia. However, little attention has been paid to other iron-associated markers such as transferrin. The aim of this study was to investigate the association of different
Reza Ardehali et al.
Artificial organs, 26(6), 512-520 (2002-06-20)
Apo-transferrin (apo-Tf), the iron deficient form of Tf, has been identified previously as a potent inhibitor of Staphylococcus epidermidis adhesion to polyurethane surfaces. In this study, the ability of apo-Tf to suppress the adhesion of two other strains of bacteria
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