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
< 5K37,499
5K - 10K39,773
10K - 15K64,552
15K - 20K49,173
20K - 25K48,889
25K - 30K39,455
30K - 35K28,242
35K - 40K25,512
40K - 45K18,780
45K - 50K13,946
50K - 55K11,254
55K - 60K8,216
60K - 65K5,871
65K - 70K4,236
70K - 75K2,937
>= 75K23,306