ACTOMYOSIN SUBFRAGMENTS
\ˈaktəmɪˌɒsɪn sˈʌbfɹaɡmənts], \ˈaktəmɪˌɒsɪn sˈʌbfɹaɡmənts], \ˈa_k_t_ə_m_ɪ__ˌɒ_s_ɪ_n s_ˈʌ_b_f_ɹ_a_ɡ_m_ə_n_t_s]\
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Parts of the myosin molecule resulting from cleavage by proteolytic enzymes (PAPAIN, TRYPSIN, or CHYMOTRYPSIN) at well-localized regions. Study of these isolated fragments helps to delineate the functional roles of different parts of myosin. Two of the most common subfragments are myosin S-1 and myosin S-2. S-1 contains the heads of the heavy chains plus the light chains and S-2 contains part of the double-stranded, alpha-helical, heavy chain tail (myosin rod).
By DataStellar Co., Ltd
Word of the day
Procollagen Proline Dioxygenase
- mixed-function oxygenase that catalyzes hydroxylation prolyl-glycyl-containing-peptide, usually in protocollagen, hydroxyprolylglycyl-peptide. The enzyme utilizes molecular oxygen with a concomitant oxidative decarboxylation of 2-oxoglutarate to succinate. EC 1.14.11.2.