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
< 5K40,204
5K - 10K44,632
10K - 15K72,543
15K - 20K55,580
20K - 25K54,751
25K - 30K43,267
30K - 35K31,466
35K - 40K28,130
40K - 45K20,863
45K - 50K15,601
50K - 55K12,863
55K - 60K9,457
60K - 65K6,571
65K - 70K4,889
70K - 75K3,453
>= 75K27,752