| 释义 |
precipitinogen Immunol.|prɪˌsɪpɪˈtɪnədʒən|
Also † preˈcipitogen.
[f. prec. + -ogen.]
A type of antigen which induces the production of a precipitin.
1904G. H. F. Nuttall Blood Immunity & Blood Relationship ii. 98 The immunifying substance, which they [sc. Obermayer and Pick] wrongly style ‘precipitogen’, as well as the precipitin they conclude are not albuminous. [Note] A misnomer..for the reason that it suggests a relation between precipitin and (‘precipitogen’) precipitable substances such as exists, for instance, between pepsin and pepsinogen, in other words that the ‘precipitogen’ is a forerunner of precipitin, which it is not. 1907Jrnl. Med. Res. XVI. 173 Many or all of the other substances are assimilated more or less readily by the tissues, are neutralized in a relatively short space of time, and in some instances (precipitogens) definite reaction products to them may be formed. Ibid. XVII. 232 The complement, when incubated with antigen and low (1/10) dilution of immune serum, may..be absorbed through the union of precipitin and precipitiongen. 1931[see prec.]. 1969Acta Path. & Microbiol. Scand. LXXVII. 463 Some chemical properties of a group reactive precipitinogen from the Fusobacterium strain F1 have been investigated.
Hence preˌcipitinoˈgenic a.
1935F. P. Gay Agents of Dis. & Host Resistance xxi. 418 Not all soluble proteins are precipitinogenic. 1970B. G. F. Weitz in H. W. Mulligan Afr. Trypanosomiases vi. 113 Cultivated trypanosomes are also agglutinogenic and precipitinogenic. |