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Isotype can refer to: * Isotype (biology), a duplicate of the holotype of a species * Isotype (crystallography), a synonym for isomorph * Isotype (immunology), an antibody class according to its Fc region * Isotype (picture language), a method of showing social, technological, biological and historical connections in pictorial form * Isotype (song), 2017 song by Orchestral Manoeuvres in the Dark See also * Isotope (other) * Isoform A protein isoform, or "protein variant", is a member of a set of highly similar proteins that originate from a single gene or gene family and are the result of genetic differences. While many perform the same or similar biological roles, some isof ...
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Isotype (biology)
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typi ...
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Isotype (crystallography)
In chemistry isomorphism has meanings both at the level of crystallography and at a molecular level. In crystallography, compounds are isomorphous if their symmetry is the same and their unit cell parameters are similar Molecules are isomorphous if they have similar shapes. The coordination complexes tris(acetylacetonato)iron (Fe(acac)3) and tris(acetylacetonato)aluminium (Al(acac)3) are isomorphous. These compounds, both of ''D''3 symmetry have very similar shapes, as determined by bond lengths and bond angles. Isomorphous compounds give rise to isomorphous crystals and form solid solutions. Historically, crystal shape was defined by measuring the angles between crystal faces with a goniometer. Whereas crystals of Fe(acac)3 are deep red and crystals of Al(acac)3 are colorless, a solid solution of the two, i.e. Fe1−xAlx(acac)3 will be deep or pale pink depending on the Fe/Al ratio, x. Double sulfates, such as Tutton's salt, with the generic formula MI2MII(SO4)2.6H2O, wh ...
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Isotype (immunology)
In immunology, antibodies ( immunoglobulins (Ig)) are classified into several types called isotypes or classes. The variable (V) regions near the tip of the antibody can differ from molecule to molecule in countless ways, allowing it to specifically target an antigen (or more exactly, an epitope). In contrast, the constant (C) regions only occur in a few variants, which define the antibody's class. Antibodies of different classes activate distinct effector mechanisms in response to an antigen (triggering different elements of the innate immune system). They appear at different stages of an immune response, differ in structural features, and in their location around the body. Isotype expression reflects the maturation stage of a B cell. Naive B cells express IgM and IgD isotypes with unmutated variable genes, which are produced from the same initial transcript following alternative splicing. Expression of other antibody isotypes (in humans: IgG, IgA, and IgE) occurs via a process ...
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Isotype (picture Language)
Isotype (International System of Typographic Picture Education) is a method of showing social, technological, biological, and historical connections in pictorial form. It consists of a set of standardized and abstracted pictorial symbols to represent social-scientific data with specific guidelines on how to combine the identical figures using serial repetition. It was first known as the Vienna Method of Pictorial Statistics (''Wiener Methode der Bildstatistik''), due to its having been developed at the Gesellschafts- und Wirtschaftsmuseum in Wien (Social and Economic Museum of Vienna) between 1925 and 1934. The founding director of this museum, Otto Neurath, was the initiator and chief theorist of the Vienna Method. Gerd Arntz was the artist responsible for realising the graphics. The term Isotype was applied to the method around 1935, after its key practitioners were forced to leave Vienna by the rise of Austrian fascism. Origin and development The Gesellschafts- und Wirtschaftsm ...
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Isotype (song)
''The Punishment of Luxury'' is the thirteenth studio album by English electronic band Orchestral Manoeuvres in the Dark (OMD), and the third since their 2006 reformation. Produced by OMD, it was released on 1 September 2017 by 100% Records in the UK and White Noise elsewhere. In July of that year, the band commenced a tour of North America and Europe in support of the record. ''The Punishment of Luxury'' met with favourable reviews, and was named as one of the best and most underrated albums of 2017. It debuted at number four on the UK Albums Chart with 9,894 copies sold in its first week, making it the band's first album to reach the top 10 in their home country since 1991's '' Sugar Tax''; the record topped the UK Independent Albums Chart. It reached the top 10 on various European charts, as well as on ''Billboard''s Dance/Electronic Albums and Independent Albums charts in the United States. Background Toward completion of the gruelling recording sessions for ''English Ele ...
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Isotope (other)
Isotopes are any of the several different forms of an element each having different atomic mass (mass number). Isotope can also refer to: *Isotope (band), a British jazz-rock band (1972–1976) * ''Isotope'' (album), a 1983 album by jazz pianist Kirk Lightsey * Isotope (catamaran), an American sailboat design *Albuquerque Isotopes, a minor league baseball team of the Pacific Coast League *Springfield Isotopes, a fictional baseball team in the TV show ''The Simpsons'' *Isotopes Punk Rock Baseball Club, a Canadian baseball-themed punk rock band *Isotope 217, a jazz band from Chicago, United States * Isotope 244, a video game developer based in the USA * Isotope (Jordan algebra) in mathematics, a method of modifying the product on a Jordan algebra *An isotope of an algebra: see Isotopy of algebras *An isotope of a loop or quasigroup: see Isotopy of loops See also *Isotone *Isotropy, an unrelated concept * Isotype (other) *iZotope iZotope, Inc. is an audio technology comp ...
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