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Bovine IFN alpha A (Yeast-derived Recombinant Protein) - 25 micrograms

Catalog No.RP0008B-025

Price$300.00

AvailabilityIn Stock

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Bulk quantities of proteins are available. Please contact us for bulk pricing.

Type I interferons comprise a vast and growing group of IFN proteins. Homologous molecules to type I IFNs are found in many species, including all mammals, and some have been identified in birds, reptiles, amphibians and fish species. The mammalian types are designated IFN-alpha, IFN-beta, IFN-kappa, IFN-delta, IFN-epsilon, IFN-tau, IFN-omega, and IFN-zeta (also known as limitin). They are mainly involved in innate immune response against viral infection.

IFN-α Homology Across Species
Bos taurus (cattle) IFN-α – 100%
Bos indicus (zebu) IFN-α – 96%
Bos mutus (wild yak) IFN-α – 96%
Bison bison (bison) IFN-α – 95%
Bubalus bubalis (water buffalo) IFN-α – 95%
More - https://blast.ncbi.nlm.nih.gov/

Bovine IFN alpha A (Yeast-derived Recombinant Protein) - 25 micrograms

Product Information
Citations
Ordering Information

Catalog No.:

RP0008B-025

Quantity:

25 ug

Source:

The Bovine IFN alpha A recombinant protein was produced in yeast and therefore does not have endotoxin, is naturally folded, and post-translationally modified.

MW:

The Bovine IFN alpha A recombinant protein has a predicted molecular weight of 19.0 kDa

Protein Sequence:

CHLPHTHSLA NRRVLMLLQQ LRRVSPSSCL QDRNDFEFLQ EALGGSQLQK AQAISVLHEV TQHTFQLFST EGSPATWDKS LLDKLRAALD QQLTDLQACL TQEEGLRGAP LLKEDSSLAV RKYFHRLTLY LQEKRHSPCA WEVVRAEVMR AFSSSTNLQE SFRRKD (166)

Country of Origin:

USA

Applications:

The bovine IFN alpha endotoxin-free recombinant protein can be used in cell culture, as a IFN alpha ELISA Standard, and as a Western Blot Control.

32888966

A TLR7 agonist activates bovine Th1 response and exerts antiviral activity against bovine leukemia virus.

Sajiki Y, Konnai S, Okagawa T, Maekawa N, Nakamura H, Kato Y, Suzuki Y, Murata S, Ohashi K.

Dev Comp Immunol. 2020 Sep 2;114:103847. doi: 10.1016/j.dci.2020.103847.

Applications: Measurement of bovine TNF alpha, IFN alpha, and IFN gamma in culture supernatants by ELISA

32411730

Increased Susceptibility of Cattle to Intranasal RVFV Infection.

Kroeker AL, Smid V, Embury-Hyatt C, Collignon B, Pinette M, Babiuk S, Pickering B.

Front Vet Sci. 2020 Apr 29;7:137. doi: 10.3389/fvets.2020.00137. eCollection 2020.

Applications: Measurement of bovine IFN alpha and IFN beta in nasal and oral swabs by ELISA.

Abstract

Rift Valley Fever virus (RVFV) is a zoonotic mosquito-borne virus that belongs to the Phenuiviridae family. Infections in animal herds cause abortion storms, high mortality rates in neonates, and mild to severe symptoms. Infected animals can also transmit the virus to people, particularly people who live or work in close contact with livestock. There is currently an ongoing effort to produce safe and efficacious veterinary vaccines against RVFV in livestock to protect against both primary infection in animals and zoonotic infections in people. To test the efficacy of these vaccines it is essential to have a reliable challenge model in relevant target species, including ruminants. In this study we evaluated three routes of inoculation (intranasal, intradermal and a combination of routes) in Holstein cattle using an infectious dose of 107 pfu/ml and a virus strain from the 2006–2007 outbreak in Kenya and Sudan. Our results demonstrated that all routes of inoculation were effective at producing viremia in all animals; however, the intranasal route induced the highest levels and longest duration of viremia, the most noticeable clinical signs, and the most widespread infection of tissues. We therefore recommend using the intranasal inoculation for future vaccine and challenge studies.

25304258

Comparison of innate immune agonists for induction of tracheal antimicrobial peptide gene expression in tracheal epithelial cells of cattle.

Berghuis L, Abdelaziz KT, Bierworth J, Wyer L, Jacob G, Karrow NA, Sharif S, Clark ME, Caswell JL.

Vet Res. 2014 Oct 12;45(1):105. doi: 10.1186/s13567-014-0105-8.

Applications: Stimulation of of bovine tracheal epithelial cells with bovine IL-17A and bovine IFN alpha in culture

Abstract

Bovine respiratory disease is a complex of bacterial and viral infections of economic and welfare importance to the beef industry. Although tracheal antimicrobial peptide (TAP) has microbicidal activity against bacterial pathogens causing bovine respiratory disease, risk factors for bovine respiratory disease including BVDV and stress (glucocorticoids) have been shown to inhibit the induced expression of this gene. Lipopolysaccharide is known to stimulate TAP gene expression, but the maximum effect is only observed after 16 h of stimulation. The present study investigated other agonists of TAP gene expression in primary cultures of bovine tracheal epithelial cells. PCR analysis of unstimulated tracheal epithelial cells, tracheal tissue and lung tissue each showed mRNA expression for Toll-like receptors (TLRs) 1-10. Quantitative RT-PCR analysis showed that Pam3CSK4 (an agonist of TLR1/2) and interleukin (IL)-17A significantly induced TAP gene expression in tracheal epithelial cells after only 4-8 h of stimulation. Flagellin (a TLR5 agonist), lipopolysaccharide and interferon-α also had stimulatory effects, but little or no response was found with class B CpG ODN 2007 (TLR9 agonist) or lipoteichoic acid (TLR2 agonist). The use of combined agonists had little or no enhancing effect above that of single agonists. Thus, Pam3CSK4, IL-17A and lipopolysaccharide rapidly and significantly induce TAP gene expression, suggesting that these stimulatory pathways may be of value for enhancing innate immunity in feedlot cattle at times of susceptibility to disease.

22308980

Differential expression pattern of ISG15 in different tissue explants and cells induced by various interferons.

Yang L, Zhang LY, Wang C, Wang B, Wang XM, Zeng SM.

Microbiol Immunol. 2012 Mar;56(3):163-70

Applications: Antiviral Activity Assay Standard

Abstract

Interferon stimulated gene 15 (ISG15), an ubiquitin cross-reactive protein, can conjugate to target proteins. Unlike ubiquitination, protein modification by ISG15 does not target protein for degradation, but enhances the cellular response to interferon (IFN), which plays a key role in antiviral responses. In this study, Western blot and/or immunocytochemistry were performed to explore the ISG15 expression patterns in explants of bovine endometrium, mammary gland and kidney, as well as Madin-Darby bovine kidney (MDBK), endometrial and mammary cells stimulated by IFN-α, -β, and -τ. Western blot indicated that there are differential minimum antiviral units among recombinant bovine interferon-α (rbIFN-α, 10(2) IU/mL), rbIFN-β (10(3) IU/mL) and rbIFN-τ (10(4) IU/mL) in regard to stimulating saturation expression of free and ISG15-conjugated proteins by MDBK cells and endometrial and mammary explants. These results were further confirmed through immunocytochemical analysis of MDBK, endometrial and mammary cells. For the first time it has been shown that the expression pattern of ISG15-conjugated proteins occurs in a tissue-specific manner. Furthermore, the present findings provide the first evidence of 10- to 100-fold differences in minimum antiviral units of rbIFN-α, rbIFN-β, and rbIFN-τ in regard to stimulating saturation expression of ISG15.

21933879

Possible involvement of IFNT in lymphangiogenesis in the corpus luteum during the maternal recognition period in the cow

Akane Nitta, Koumei Shirasuna, Shingo Haneda, Motozumi Matsui, Takashi Shimizu, Shuichi Matsuyama, Koji Kimura, Heinrich Bollwein, and Akio Miyamoto

Reproduction, Dec 2011; 142: 879 - 892.

Applications: Cell Culture Stimulation of Multiple Cell Types; Bioassay (showed activity)

Abstract

The corpus luteum (CL), which secretes large amounts of progesterone and is thus essential for establishing pregnancy, contains various types of immune cells that may play essential roles in CL function by generating immune responses. The lymphatic system is the second circulation system and is necessary for immune function, but the lymphatic system of the bovine CL has not been characterized in detail. We collected bovine CLs on days 12 and 16 of the estrous cycle (C12 and C16) and days 16 and 40 of early pregnancy (P16 and P40). Lymphatic endothelial hyaluronan receptor 1 (LYVE1) protein was detected in the CL by immunohistochemistry and western blotting and increased at P40 compared with C16. The mRNA expression levels of lymphangiogenic factors, such as vascular endothelial growth factor-C (VEGFC), VEGFD, and their common receptor VEGFR3, as well as the lymphatic endothelial cell (LyEC) marker podoplanin, increased in P16 and P40 CLs. Thus, it is suggested that the lymphatic system of the bovine CL reconstitutes during early pregnancy. Interferon tau (IFNT) from the conceptus in the uterus is a candidate for activating luteal lymphangiogenesis during the maternal recognition period (MRP). We found that treatment of LyECs isolated from internal iliac lymphatic vessels with IFNT stimulated LyEC proliferation and significantly increased mRNA expression of VEGFC and IFN-stimulated gene 15. Moreover, both IFNT and VEGFC induced LyECs to form capillary-like tubes in vitro. In conclusion, it is suggested that new lymphangiogenesis in the bovine CL begins during the MRP and that IFNT may mediate this novel phenomenon.

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Kingfisher Biotech brand products are warranted by Kingfisher Biotech, Inc. to meet stated product specifications and to conform to label descriptions when used, handled and stored according to instructions. Unless otherwise stated, this warranty is limited to one year from date of sale. Kingfisher Biotech’s sole liability for the product is limited to replacement of the product or refund of the purchase price. Kingfisher Biotech brand products are supplied for research applications. They are not intended for medicinal, diagnostic or therapeutic use. The products may not be resold, modified for resale or used to manufacture commercial products without prior written approval from Kingfisher Biotech.

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