Interferon: Difference between revisions

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<StructureSection load='2hym' size='500' side='right' caption='Complex of the α-helical interferon α-2 with soluble IFN α/β receptor.  Click on the green links to the left to view the structural aspects of interferons. PDB ID: [[2hym]])' scene='Interferons/Interferonaandreceptor/2'>
<StructureSection load='2hym' size='450' side='right' caption='Complex of the α-helical interferon α-2 with soluble IFN α/β receptor.  Click on the green links to the left to view the structural aspects of interferons. PDB ID: [[2hym]])' scene='Interferons/Interferonaandreceptor/2'>
'''Interferons''' were the first cytokines discovered and were identified by Isaacs and Lindenmann. These proteins were classified as interferons because they interfered with virus growth.<ref name="Isaacs" /> The initial experiments performed poorly characterized the interferons, and was based merely on bioactivity. Advances in scientific instrumentation and technique have allowed for greater understanding and visualization of not only the structure but also the mechanisms of the various types of inteferons.<ref name="Structure">PMID:2413490</ref> The interferons were originally classified as leukocyte (interferon-α), fibroblast (interferon-β), and immmune (interferon-γ), although today they are classified into types I (α, β, ε, κ, ω), II (γ), and III (λ).<ref name="Isaacs" /><ref name="Structure" />
'''Interferons''' were the first cytokines discovered and were identified by Isaacs and Lindenmann. These proteins were classified as interferons because they interfered with virus growth.<ref name="Isaacs" /> The initial experiments performed poorly characterized the interferons, and was based merely on bioactivity. Advances in scientific instrumentation and technique have allowed for greater understanding and visualization of not only the structure but also the mechanisms of the various types of inteferons.<ref name="Structure">PMID:2413490</ref> The interferons were originally classified as leukocyte (interferon-α), fibroblast (interferon-β), and immmune (interferon-γ), although today they are classified into types I (α, β, ε, κ, ω), II (γ), and III (λ).<ref name="Isaacs" /><ref name="Structure" />
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*<scene name='Interferon/Ifn_gamma/5'>Interferon Gamma</scene>
*<scene name='Interferon/Ifn_gamma/5'>Interferon Gamma</scene>
[[Image:InterferonSignalingPathway.png|600px|right|thumb|Interferon JAK-STAT Pathway showing interferons types I, II, and III<ref name="Isaacs">[http://www.jbc.org/content/282/28/20045.full?sid=cbf08059-44d4-4957-8ea7-0351cab9c2ac] Samuel, C.E. "Interferons, Interferon Receptors, Signal Transducer and Transcriptional Activators, and Inteferon Regulatory Factors." ''J Biol Chem'' 2007 282: 20045-20046. First Published on May 14, 2007, doi:10.1074/jbc.R700025200</ref>]]
[[Image:InterferonSignalingPathway.png|600px|right|thumb|Interferon JAK-STAT Pathway showing interferons types I, II, and III<ref name="Isaacs">[http://www.jbc.org/content/282/28/20045.full?sid=cbf08059-44d4-4957-8ea7-0351cab9c2ac] Samuel, C.E. "Interferons, Interferon Receptors, Signal Transducer and Transcriptional Activators, and Inteferon Regulatory Factors." ''J Biol Chem'' 2007 282: 20045-20046. First Published on May 14, 2007, doi:10.1074/jbc.R700025200</ref>]]
 
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==Signaling and Receptor Interactions==
==Signaling and Receptor Interactions==