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
< 5K41,618
5K - 10K47,235
10K - 15K77,226
15K - 20K59,245
20K - 25K57,947
25K - 30K45,905
30K - 35K33,021
35K - 40K29,461
40K - 45K21,868
45K - 50K16,393
50K - 55K13,634
55K - 60K9,968
60K - 65K6,942
65K - 70K5,168
70K - 75K3,714
>= 75K30,206