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
< 5K44,290
5K - 10K52,700
10K - 15K85,873
15K - 20K66,029
20K - 25K63,717
25K - 30K50,131
30K - 35K36,248
35K - 40K31,970
40K - 45K23,870
45K - 50K18,397
50K - 55K15,133
55K - 60K11,373
60K - 65K7,760
65K - 70K5,943
70K - 75K4,199
>= 75K35,637