| 释义 |
phytohæmagglutinin Hæmatol.|ˌfaɪtəʊhiːməˈgl(j)uːtɪnɪn|
Also (chiefly U.S.) -hem-.
[f. phyto- + hæmagglutinin, hem-.]
Any plant protein that is a hæmagglutinin.
1949Blood IV. 673 We rediscovered this phytohemagglutinin accidentally and independently. 1951Amer. Jrnl. Med. X. 776/2 The phytohemagglutinin of red beans (Phaseolus vulgaris) was recently isolated in pure form. 1955Jrnl. Biol. Chem. CCXII. 615 This phytohemagglutinin, in either the mucoprotein or the protein form, is a non-toxic, powerful hemagglutinin of all types of human erythrocytes, and those of the horse, pig, [etc.]. 1960Cancer Res. XX. 462 The mucoprotein plant extract, phytohemagglutinin (PHA), employed originally as a means of separating the leukocytes from whole blood in preparing the cultures, was found to be a specific initiator of mitotic activity: in its presence, cell division occurred; in its absence, no mitoses appeared. 1977I. M. Roitt Essent. Immunol. (ed. 3) vi. 180 Comparable changes can be induced in lymphocytes by certain plant mitogens of which the best known are phytohaemagglutinin (PHA) and concanavalin A (conA). These..react with the cell surface non-specifically (i.e. not as an antigen) and produce the same series of cellular events as does antigen locking on to its specific surface receptor. |