Small Molecule Statistics: Molecular Weight Distribution

Distribution of molecule weight in the Chemical Component Dictionary (standard and modified amino acids/nucleotides, small molecule ligands, and solvent molecules) and the Biologically Interesting molecule Reference Dictionary (peptide-like antibiotic and inhibitor molecules).

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Molecular Weight (Daltons)	Number of Dictionary Entries
< 100.0	481
100.0 - 200.0	6,592
200.0 - 300.0	10,293
300.0 - 400.0	12,323
400.0 - 500.0	9,838
500.0 - 600.0	5,354
600.0 - 700.0	2,148
700.0 - 800.0	1,065
800.0 - 900.0	618
900.0 - 1000.0	362
1000.0 - 1100.0	209
1100.0 - 1200.0	125
1200.0 - 1300.0	102
1300.0 - 1400.0	74
1400.0 - 1500.0	58
1500.0 - 1600.0	47
1600.0 - 1700.0	35
1700.0 - 1800.0	18
1800.0 - 1900.0	33
1900.0 - 2000.0	17
>= 2000.0	82

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.