Ib tus kab mob tag nrho, hu ua virion, muaj cov nucleic acid nyob ib puag ncig los ntawm lub tsho tiv thaiv ntawm cov protein hu ua capsid. Cov no yog tsim los ntawm zoo tib yam protein subunitshu ua capsomeres. Cov kab mob tuaj yeem muaj lipid "lub hnab ntawv" muab tau los ntawm tus tswv tsev cell membrane. … Cov kab mob no tsawg dua cov kab mob.
Tus kab mob capsomeres muaj pes tsawg tus?
Papillomaviruses: Cov yam ntxwv dav dav ntawm tib neeg tus kab mob
HPVs yog tus yam ntxwv los ntawm qhov me me (52-55 nm txoj kab uas hla), nonenveloped, icosahedral capsid muaj li ntawm 72 pentameric capsomeres (Daim duab 1).
Tus kab mob capsid yog dab tsi?
A capsid yog lub plhaub protein ntawm tus kab mob, kaw nws cov khoom siv caj ces. Nws muaj ob peb oligomeric (rov ua dua) cov qauv subunits ua los ntawm cov protein hu ua protomers. Cov kev soj ntsuam 3-dimensional morphological subunits, uas tej zaum yuav los yog tsis sib haum mus rau ib tug neeg cov proteins, hu ua capsomeres.
Txhua tus kab mob puas muaj lub hnab ntawv?
Tsis yog txhua tus kab mob muaj lub hnab ntawv. Cov hnab ntawv feem ntau yog muab los ntawm ib feem ntawm cov cell membranes (phospholipids thiab proteins), tab sis suav nrog qee cov kab mob glycoproteins.
Vim li cas cov kab mob thiaj li muaj kab mob?
Lub capsid muaj peb lub luag haujlwm: 1) nws tiv thaiv cov nucleic acid los ntawm kev zom zaub mov los ntawm enzymes, 2) muaj cov chaw tshwj xeeb ntawm nws qhov chaw uas tso cai rau virion txuas rau tus tswv tsev. cell, thiab 3) muab cov proteins uas pab tautus virion nkag mus rau hauv lub cell membrane thiab, qee zaum, txhaj cov kab mob nucleic…
