beta structure

beta structure

noun Biochemistry.
a secondary structure occurring in many proteins, consisting of several polypeptide chains running in parallel or alternating directions and joined by intermolecular hydrogen bonds, creating a flexible, strong arrangement.
Also called beta sheet, pleated sheet.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Beta structure is always a great word to know.
So is helium. Does it mean:
Symbol: Lr; atomic weight 260; atomic number: 103
Symbol: He; atomic weight: 4.0026; atomic number: 2
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