File:406322aa.2.jpg
406322aa.2.jpg (600 × 415 pixels, file size: 47 KB, MIME type: image/jpeg)
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Summary
a: Side view of the TmAFP beta-helix with the beta-sheets (TCT sequences) indicated by green arrows and the disulphide bonds in yellow. Threonine side chains on the beta-sheet surface are shown with oxygen atoms in red. b: End-on view of the beta-helix with the N terminus proximal, showing the alignment of conserved threonine, cysteine, serine and alanine side chains and internal water. We note that the shorter dimension of the pseudo-rectangular cross-section in TmAFP is longer than the disulphide linkage, but the flatness of the beta-sheet is maintained by the opposite side being pulled inwards. The flatness of the beta-sheet is probably due to the shortness of the beta-strands, the disulphide bonds and the presence of favourable van der Waals interactions between stacked threonine side chains. The N and C termini are shown.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:46, 19 January 2015 | | 600 × 415 (47 KB) | Yulia Baron (talk | contribs) | a, Side view of the TmAFP beta-helix with the beta-sheets (TCT sequences) indicated by green arrows and the disulphide bonds in yellow. Threonine side chains on the beta-sheet surface are shown with oxygen atoms in red. b, End-on view of the beta-helix wi |
| 08:18, 19 January 2015 |  | 600 × 415 (47 KB) | Yulia Baron (talk | contribs) | a: Side view of the TmAFP beta-helix with the beta-sheets (TCT sequences) indicated by green arrows and the disulphide bonds in yellow. Threonine side chains on the beta-sheet surface are shown with oxygen atoms in red. b: End-on view of the beta-helix w |
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