Saiz pratonton PNG bagi fail SVG ini: 512 × 488 piksel . Leraian-leraian lain: 252 × 240 piksel | 504 × 480 piksel | 806 × 768 piksel | 1,074 × 1,024 piksel | 2,149 × 2,048 piksel.
Fail asli (Fail SVG, ukuran dasar 512 × 488 piksel, saiz fail: 307 KB)
Ringkasan
| Keterangan |
English: Nucleosome assembly begins with the binding of acetylated histone H3–H4 complexes to the assembly factor CAF-1. This complex is then recruited to the replication fork by an interaction with the sliding clamp, and a tetramer of histones H3 and H4 is loaded onto the nascent DNA to form half of a new nucleosome. Dimers of histones H2A and H2B are then loaded onto the DNA, probably with the assistance of other assembly factors such as NAP-1, to form the complete histone octamer. Chromatin-remodeling complexes contribute to nucleosome assembly and spacing. The number of histone H3 and H4 subunits that interact with CAF-1 is not clear. These subunits form highly stable tetramers in solution (unlike histones H2A and H2B, which form dimers) and it is therefore thought that CAF-1 loads a complete H3–H4 tetramer as shown here. There is some evidence, however, that CAF-1 can interact with an H3–H4 dimer, in which case the loading of a tetramer would require two CAF-1–histone complexes.[1] |
| Tarikh | |
| Sumber | The Cell Cycle. Principles of Control. |
| Pengarang | David O Morgan |
Perlesenan
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Pemegang hak cipta fail ini membenarkan sesiapa sahaja untuk menggunakannya untuk apa-apa jua tujuan, asalkan pemegang hak cipta diberi pengiktirafan yang sewajarnya. Pengedaran semula, kerja derivatif, kegunaan komersil dan semua kegunaan lain adalah dibenarkan. |
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Sejarah fail
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| Tarikh/Waktu | Gambar kenit | Ukuran | Pengguna | Komen | |
|---|---|---|---|---|---|
| semasa | 18:03, 1 Mei 2020 | | 512 × 488 (307 KB) | Rob Hurt | Uploaded a work by David O Morgan from The Cell Cycle. Principles of Control. with UploadWizard |
Penggunaan fail
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Penggunaan fail sejagat
Fail ini digunakan oleh wiki-wiki lain yang berikut:
- Penggunaan di el.wikipedia.org
- Penggunaan di en.wikipedia.org
- Penggunaan di ja.wikipedia.org
