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Related to isotype: idiotype, allotype


1. A biological specimen or other element that is a duplicate of the holotype.
2. Any of several classes or subclasses of immunoglobulins, such as immunoglobulins A and G, that are distinguished by differences in the amino acid sequence of the constant regions of their heavy chains. All isotypes are usually found in every individual of a species.

i′so·typ′ic (-tĭp′ĭk) adj.
i′so·ty′py (-tī′pē) n.


the presentation of statistical information in a row of diagrams using the international picture language created by Otto Neurath (1882–1945)


(ˈaɪ səˌtaɪp)

1. one of two or more separate biological populations of the same or a similar type.
2. any epitope that is common to all individuals in a species.
i`so•typ′ic (-ˈtɪp ɪk) adj.
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References in periodicals archive ?
Product Group 2: Test kit for the detection of GM1 autoantibodies of isotype IgG and IgM, at the Laboratory of Clinical Biochemistry (LKB).
NOVA Lite DAPI ANA Kit is an indirect immunofluorescence assay for the qualitative detection and semi-quantitative determination of anti-nuclear antibodies of the IgG isotype in human serum by manual fluorescence microscopy or with NOVA View Automated Fluorescence Microscope.
Staining was not seen in serial sections stained with the isotype antibody (Figure 1, panel E) or with no antibodies.
These correlated with each other, suggesting that when you have a high HAI titer, you have a high IgG1 response, which goes along with IgG1 being the predominant IgG isotype and the one most associated with protecting against viral disease," she said.
Photos distributed by US (Morton negative 1320) at F, MICH and MO state on their labels that the plant depicted is an isotype of Polypodium vastum; however, there is no locality information with the specimen and therefore it is uncertain whether it is a type.
The positivity of each isotype was calculated by taking the high-titred chronic serum pool as positive control (100 antibody unit).
In Vienna, Neurath had also become interested in the way complex information can be communicated using simple icons and images, a method he called Isotype (International System of Typographical Picture Education).
In order to investigate the type of immunological adjuvant activity of GA against the SM in mice, IgG isotype, cytokine profiles, and delayed type hypersensitivity of the mice immunized with the formula were determined.
The present treatment is based on herbarium specimens, including an isotype and two other collections of V.
Numerous other studies have demonstrated the role of specific IgG isotype responses in anti-malarial protective immunity.
Plasma from professional soccer players showed a lower protein content of alpha-1 antitrypsin (ATT-1) isotype 3, fibrinogen gamma chain isotypes 1, 2 and 3 and vitamin D binding protein isotype 1 with respect to those observed in the plasma from recreational soccer players (Table 2).