Table 1:

The four most frequent prefixes in the β-sheets of the NMR-identified entries of the PDB_Amyloid list, plus the most frequent prefix (GGERA) in the X-ray crystallography identified entries of PDB_Amyloid.

Prefix	Count	Appearance in the PDB_Amyloid list
QKLVF	77	2LMN, 2LMO, 2LMP, 2LMQ, 2LNQ, 2MPZ
GEYFT	48	1OLG, 1SAE, 1SAF, 1SAK, 1SAL, 3SAK
HHQKL	36	2LMO, 5KK3
HQKLV	25	2LMN, 2LMO, 2LMP, 2LMQ
GGERA	106	1DW9, 1DWK, 2IU7, 2IV1, 2IVQ, 2Y42

The second column gives the count of the appearances of the prefixes (counting the multiplicities) in the entries, listed in the third column.