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Date: 29-5-2021
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Date: 29-11-2015
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Date: 21-4-2021
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Beta-Strand
A b-strand is one of the two regular types of secondary structure (the other being the a-helix) that is commonly observed in protein structures. The b-strand is characterized by an extended backbone conformation. The b-strand is not stable as a discrete structural unit by itself, but is stable only when it associates through hydrogen bond interactions with adjacent b-strands to form a b-sheet.
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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مكتبة أمّ البنين النسويّة تصدر العدد 212 من مجلّة رياض الزهراء (عليها السلام)
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