PDB Statistics: PDB Data Distribution by Molecular Weight (Entity)

Molecular weight is calculated for each chemically distinct component of a PDB structure, e.g. protein, nucleic acid.

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Molecular Weight (Daltons)Number of Entities
< 5K45,140
5K - 10K54,263
10K - 15K88,703
15K - 20K68,621
20K - 25K66,300
25K - 30K51,475
30K - 35K37,423
35K - 40K33,047
40K - 45K24,529
45K - 50K19,109
50K - 55K15,602
55K - 60K11,651
60K - 65K7,988
65K - 70K6,128
70K - 75K4,321
>= 75K37,109