Kapsid

Skema sitomegalovirus
Ilustrasi perubahan model geometri antara dua kapsid yang boleh jadi. Perubahan saiz serupa telah dicerap akibat mutasi asid amino tunggal[1]

Kapsid ialah cangkang protein bagi virus, meliputi bahan gennya. Ia terdiri daripada beberapa subunit struktur oligomer (berulang) diperbuat daripada protein yang dipanggil protomer. Subunit morfologi yang boleh cerap, yang boleh atau tidak boleh secocok dengan protein individu, dipanggil kapsomer. Protein yang mendirikan kapsid dipanggil protein kapsid atau protein kulit virus (VCP). Komponen genom virus termasuk kapsid, bersama dengan protein teras virus yang kadangkala ada, dipanggil teras virus. Kapsid dan teras bersama dirujuk sebagai nukleocapsid (banding juga virion).

Rujukan

  1. ^ Asensio MA, Morella NM, Jakobson CM, Hartman EC, Glasgow JE, Sankaran B, dll. (September 2016). "A Selection for Assembly Reveals That a Single Amino Acid Mutant of the Bacteriophage MS2 Coat Protein Forms a Smaller Virus-like Particle". Nano Letters. 16 (9): 5944–50. Bibcode:2016NanoL..16.5944A. doi:10.1021/acs.nanolett.6b02948. OSTI 1532201. PMID 27549001. S2CID 16706951.

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