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
< 5K45,761
5K - 10K55,497
10K - 15K90,507
15K - 20K69,953
20K - 25K67,632
25K - 30K52,628
30K - 35K38,077
35K - 40K33,798
40K - 45K25,089
45K - 50K19,670
50K - 55K16,062
55K - 60K11,946
60K - 65K8,165
65K - 70K6,276
70K - 75K4,446
>= 75K38,212