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T5391

Sigma-Aldrich

apo-Transferrin human

γ-irradiated, powder, BioXtra, suitable for cell culture, ≥98%

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.75

Quality Level

200

sterility

γ-irradiated

product line

BioXtra

Assay

≥98%

form

powder

mol wt

76-81 kDa

concentration

~25 mM

technique(s)

cell culture | mammalian: suitable

impurities

HIV and HBsAg, source material tested negative
 iron, essentially free

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

apo-Transferrin (aTF) human can be supplemented with iron or used to bind free iron present in media. It can be used to transport iron into mammalian cells.

Application

apo-Transferrin human has been used as a supplement:
  • in Dulbecco′s modified Eagle medium/HamF12 (DMEM/F-12) to culture human adrenocortical carcinoma cells
  • in DMEM/F-12 to culture neural precursor cells from mice
  • in collecting medium NCSU23 to culture preantral follicles from porcine ovaries

Biochem/physiol Actions

apo-Transferrin (aTF) is an endogenous iron chelator and shows protective effects in the host by scavenging free iron and preventing the formation of toxic reactive oxygen species (ROS). It shows a therapeutic effect against thalassemia. After the release of iron, receptor-bound apo-transferrin reaches the cell surface instead of being transported to lysosomes for degradation. The cell surface has a neutral pH that promotes the release of apo-transferrin from its receptor, where it can again circulate and bind additional iron to undergo further rounds of iron delivery to cells.

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

Certificates of Analysis (COA)

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Miwako Yamamiya et al.
Biochemical and biophysical research communications, 513(4), 841-845 (2019-04-21)
Microglia are central nervous system-resident immune cells that play a crucial role in brain development by interacting with neural precursor cells (NPCs). It has been reported that microglia regulate the number of NPC by phagocytosis, inducing apoptosis, and promoting proliferation.
Hiroshi Kawabata
Free radical biology & medicine, 133, 46-54 (2018-07-04)
In vertebrates, transferrin (Tf) safely delivers iron through circulation to cells. Tf-bound iron is incorporated through Tf receptor (TfR) 1-mediated endocytosis. TfR1 can mediate cellular uptake of both Tf and H-ferritin, an iron storage protein. New World arenaviruses, which cause
Miwako Yamamiya et al.
Biochemical and biophysical research communications, 513(4), 841-845 (2019-04-21)
Microglia are central nervous system-resident immune cells that play a crucial role in brain development by interacting with neural precursor cells (NPCs). It has been reported that microglia regulate the number of NPC by phagocytosis, inducing apoptosis, and promoting proliferation.
Arunima Purkayastha et al.
Cell stem cell, 27(6), 869-875 (2020-12-02)
Current smoking is associated with increased risk of severe COVID-19, but it is not clear how cigarette smoke (CS) exposure affects SARS-CoV-2 airway cell infection. We directly exposed air-liquid interface (ALI) cultures derived from primary human nonsmoker airway basal stem
Heather Etchevers
Nature protocols, 6(10), 1568-1577 (2011-10-01)
A highly enriched population of neural crest cells (NCCs) from amniote embryos, such as from chicks, mice and humans, is desirable for experiments in fate determination. NCCs are also useful for testing the functional effects of molecular changes underlying numerous
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How transferrin and other cell culture components affect the performance of serum-free, protein-free cell culture systems used for biomanufacturing heterologous proteins including monoclonal antibodies. The page introduces the in vitro chemistry and biochemistry of transferrin.

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