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
< 5K44,492
5K - 10K53,014
10K - 15K86,218
15K - 20K66,449
20K - 25K64,120
25K - 30K50,400
30K - 35K36,467
35K - 40K32,174
40K - 45K23,957
45K - 50K18,554
50K - 55K15,225
55K - 60K11,461
60K - 65K7,803
65K - 70K5,986
70K - 75K4,215
>= 75K35,926