\fˈɔːtifˈa͡ɪv z ˌɑːɹˌɛnpˈiː], \fˈɔːtifˈaɪv z ˌɑːɹˌɛnpˈiː], \f_ˈɔː_t_i_f_ˈaɪ_v z ˌɑː_ɹ_ˌɛ_n_p_ˈiː]\
Definitions of 45S RNP
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Glycoproteins with a molecular weight of approximately 620,000 to 680,000. Precipitation by electrophoresis is in the alpha region. They include alpha 1-macroglobulins and alpha 2-macroglobulins. These proteins exhibit trypsin-, chymotrypsin-, thrombin-, and plasmin-binding activity and function as hormonal transporters.
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