This webpage contains legacy information. The product is either no longer available from the supplier or has been delisted at Labome.
product summary
company name :
ACROBiosystems
product type :
protein
product name :
Human Transferrin Protein, His Tag (MALS verified)
catalog :
TRN-H4229
quantity :
200 ug, 1 mg
price :
310 USD, 1200 USD
product information
company name :
ACROBiosystems
product type :
Protein
catalog :
TRN-H4229
product name :
Human Transferrin Protein, His Tag (MALS verified)
quantity :
200 ug, 1 mg
price :
310 USD, 1200 USD
quantity & price :
$310/200ug,$1200/1mg (200ug × 5)
target :
Transferrin
host species :
Human
By Tag :
His Tag
Research :
For Research Use Only
Source :
Human Transferrin, His Tag (TRN-H4229) is expressed from human 293 cells (HEK293). It contains AA Val 20 - Pro 698 (Accession # AAH59367).
Endotoxin :
Less than 1.0 EU per μg by the LAL method.
Purity :
>95% as determined by SDS-PAGE.
SDS-PAGE Remark(R&NR) :
Human Transferrin, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Formulation :
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization. Contact us for customized product form or formulation.
Reconstitution :
Please see Certificate of Analysis for specific instructions. For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage :
For long term storage, the product should be stored at lyophilized state at -20°C or lower. Please avoid repeated freeze-thaw cycles. This product is stable after storage at:
● -20°C to -70°C for 12 months in lyophilized state;
● -70℃ for 3 months under sterile conditions after reconstitution.
Background :
Transferrin is also known as Serotransferrin, Beta-1 metal-binding globulin, TF, and is iron-binding blood plasma glycoproteins that control the level of free iron in biological fluids. Although iron bound to transferrin is less than 0.1% (4 mg) of the total body iron, it is the most important iron pool, with the highest rate of turnover (25 mg/24 h). The affinity of transferrin for Fe(III) is extremely high (1023 M−1 at pH 7.4) but decreases progressively with decreasing pH below neutrality.When not bound to iron, it is known as "apo-transferrin”. In humans, transferrin consists of a polypeptide chain containing 679 amino acids. It is a complex composed of alpha helices and beta sheets to form two domains (the first situated in the N-terminus and the second in the C-terminus). The N- and C- terminal sequences are represented by globular lobes and between the two lobes is an iron-binding site. The liver is the main source of manufacturing transferrin, but other sources such as the brain also produce this molecule . Transferrin is also associated with the innate immune system. Transferrin is found in the mucosa and binds iron, thus creating an environment low in free iron that impedes bacteria survival in a process called iron withholding. The level of transferrin decreases in inflammation. The metal binding properties of transferrin have a great influence on the biochemistry of plutonium in humans. Transferrin has a bacteriocidal effect on bacteria, in that it makes Fe3+ unavailable to the bacteria.Carbohydrate deficient transferrin increases in the blood with heavy ethanol consumption and can be monitored via laboratory testing.
References :
(1) Crichton RR, Charloteaux-Wauters M. 1987, Eur. J. Biochem. 164 (3): 485–506.
(2) Aisen, Phillip, et al.,1978, Journal of Biological Chemistry 253 (6): 1930–1937.
(3) Ritchie RF,et al., 1999, J. Clin. Lab. Anal. 13 (6): 273–9.
(4) Sharpe PC, 2001, Ann. Clin. Biochem. 38 (Pt 6): 652–64.
company information
ACROBiosystems
ACROBiosystems is a leading manufacturer of recombinant proteins and other critical reagents to support the development of target therapeutics, vaccines and diagnostic kits.
Our team has worked tirelessly since the genomic sequence of SARS-CoV-2 was first published, developing a serial of critical reagents to fight COVID-19. Our team has successfully developed a new neutralizing antibody titer serologic assay kit for COVID-19 vaccine evaluation (Cat.No.TAS-K022) which really showed excellent performance.
As the emerging variants may have impacted on the development of the COVID-19 epidemic, our team is also going full steam ahead on developing a collection of spike mutants for the emerging variants of SARS-COV-2. The reagents can be used to evaluate the efficacy of the antibodies and vaccination.
We have also developed an extensive collection of recombinant proteins to support the development for bispecific antibodies, antibody drug conjugates and cell therapies.
Our team has worked tirelessly since the genomic sequence of SARS-CoV-2 was first published, developing a serial of critical reagents to fight COVID-19. Our team has successfully developed a new neutralizing antibody titer serologic assay kit for COVID-19 vaccine evaluation (Cat.No.TAS-K022) which really showed excellent performance.
As the emerging variants may have impacted on the development of the COVID-19 epidemic, our team is also going full steam ahead on developing a collection of spike mutants for the emerging variants of SARS-COV-2. The reagents can be used to evaluate the efficacy of the antibodies and vaccination.
We have also developed an extensive collection of recombinant proteins to support the development for bispecific antibodies, antibody drug conjugates and cell therapies.
questions and comments