INCOMPLETE VIRUSES
\ɪnkəmplˈiːt vˈa͡ɪɹəsɪz], \ɪnkəmplˈiːt vˈaɪɹəsɪz], \ɪ_n_k_ə_m_p_l_ˈiː_t v_ˈaɪ_ɹ_ə_s_ɪ_z]\
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Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.
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Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.