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Overall characteristics of portal proteins from several phages. Inner diameters of the central channels in the portal protein clip domains.
| Portal Protein (PP) | Molecular Wight of PP (kDa) | The Length of the Polypeptide Chain (aa) | Narrowest Diameter within Clip Domain (Å) | Genome Size kb | References |
|---|---|---|---|---|---|
| phi29 gp10 | 35.9 | 309 | 34 | 19.2 | [6] |
| GA1 gp10 | 35.3 | 306 | 34 | 21.2 | This MS |
| phiCPV4 gp17 | 34.6 | 301 | 36 | 17.9 | This MS |
| SPP1 gp6 | 57.3 | 503 | 30 | 45 | [27] |
| T4 gp9 | 61 | 524 | 32 | 168.9 | [38] |
