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	480
100.0 - 200.0	6,558
200.0 - 300.0	10,261
300.0 - 400.0	12,261
400.0 - 500.0	9,801
500.0 - 600.0	5,318
600.0 - 700.0	2,137
700.0 - 800.0	1,065
800.0 - 900.0	618
900.0 - 1000.0	361
1000.0 - 1100.0	208
1100.0 - 1200.0	125
1200.0 - 1300.0	102
1300.0 - 1400.0	73
1400.0 - 1500.0	57
1500.0 - 1600.0	46
1600.0 - 1700.0	35
1700.0 - 1800.0	17
1800.0 - 1900.0	33
1900.0 - 2000.0	17
>= 2000.0	80

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.