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. Author manuscript; available in PMC: 2019 Jan 17.
Published in final edited form as: Acc Chem Res. 2018 Aug 10;51(9):2187–2197. doi: 10.1021/acs.accounts.8b00131

Table 1. Interlayer Separation Distance in Amino Acids Crystal Structure.

amino acid interlayer distance (Å) β-sheet propensity
l-Trp 17.695
l-Phe
            F–I 15.351
            F–II 12.881
            F–III 15.396       high
            F–IV 15.393
l-Met 15.009
l-Ile 14.039
l-Leu 14.073
l-Val 12.059
l-Cys
                   monoclinic 10.938
                   orthorhombic 6.099
l-Tyr 10.545
l-His
monoclinic 9.424
orthorhombic 9.427       moderate
l-Ser 9.323
l-Glu
            α-form 8.776
            β-form 8.670
l-Asn 8.047
l-Gln 8.002
l-Asp 7.537
l-Thr 6.803
l-Ala 6.172       low
Gly
            α-form 5.967
            β-form 4.923