File:1gwe antipar betaSheet both.png
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Summary
| Description |
English: An example of a 4-stranded antiparallel β sheet fragment from a crystal structure of the enzyme catalase (PDB file 1GWE at 0.88 Å resolution). a) Front view, showing the antiparallel hydrogen bonds (dotted) between peptide NH and CO groups on adjacent strands. Arrows indicate chain direction, and electron density contours outline the non-H atoms. O atoms are red balls, N atoms are blue, and H atoms are omitted for simplicity; sidechains are shown only out to the first sidechain C atom (green). b) Edge-on view of the central two β strands in a, showing the righthanded twist and the pleat of Cαs and sidechains that alternately stick out in opposite directions from the sheet.
Français : Exemple d'un fragment de feuillet β à quatre chaines antiparallèles extrait de la structure cristalline de l'enzyme catalase (résolution 0,88 Å). a) Vue de face, montrant les liaisons hydrogènes (en pointillés) entre les groupes NH et CO des acides aminés adjacents. Les flèches indiquent l'orientation des chaines, et les contours de densité d'électron entourent les atomes autres que l'hydrogène. Les atomes d'oxygène sont donnés en rouge, ceux d'azote en bleu. Les atomes d'hydrogène sont omis pour plus de simplicité. Dans le même but, seul le premier carbone des radicaux est montré (en vert). b)vue par côté des deux chaines centrales montrant la torsion à droite des chaines l'une par rapport à l'autre, ainsi que les plis de chacune d'elle qui orientent les carbones portant les radicaux des acides aminés alternativement de part et d'autre de celles-ci. |
| Date | |
| Source | Own work |
| Author | Dcrjsr |
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This image has been assessed under the valued image criteria and is considered the most valued image on Commons within the scope: Protein sheets and strands. You can see its nomination here. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:00, 10 April 2010 | | 2,000 × 1,100 (1.04 MB) | Dcrjsr | {{Information |Description={{en|1=An example of a 4-stranded antiparallel β sheet fragment from a crystal structure of the enzyme catalase (PDB file 1GWE at 0.88Å resolution). a) Front view, showing the antiparallel hydrogen bonds (dotted) between pepti |
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