PDB Statistics: UniProtKB Entries with Known 3D Structure (Annual)
This chart shows the total number of unique UniProtKB entries in PDB structures released within each year.
Note: The number of unique UniProtKB entries in the statistics table is linked to the group search result page. There is a default precision threshold in calculating the numbers for performance balance. So the statistics count may have a slight discrepancy compared to the actual non-redundant group search result when the result count approaches or goes above 10,000. The group search result page provides an accurate count. The statistics page provides the trend.
| Year | UniProtKB Entries with Known 3D Structure |
|---|---|
| 1976 | 13 |
| 1977 | 12 |
| 1978 | 3 |
| 1979 | 7 |
| 1980 | 8 |
| 1981 | 12 |
| 1982 | 17 |
| 1983 | 18 |
| 1984 | 11 |
| 1985 | 20 |
| 1986 | 13 |
| 1987 | 16 |
| 1988 | 34 |
| 1989 | 50 |
| 1990 | 81 |
| 1991 | 79 |
| 1992 | 92 |
| 1993 | 300 |
| 1994 | 632 |
| 1995 | 526 |
| 1996 | 594 |
| 1997 | 854 |
| 1998 | 1,096 |
| 1999 | 1,446 |
| 2000 | 1,508 |
| 2001 | 1,694 |
| 2002 | 1,804 |
| 2003 | 2,485 |
| 2004 | 3,109 |
| 2005 | 3,413 |
| 2006 | 3,913 |
| 2007 | 4,254 |
| 2008 | 4,202 |
| 2009 | 4,411 |
| 2010 | 4,550 |
| 2011 | 4,419 |
| 2012 | 4,714 |
| 2013 | 5,040 |
| 2014 | 6,092 |
| 2015 | 5,705 |
| 2016 | 6,456 |
| 2017 | 6,911 |
| 2018 | 7,057 |
| 2019 | 7,469 |
| 2020 | 8,815 |
| 2021 | 8,392 |
| 2022 | 9,986 |
| 2023 | 10,361 |
| 2024 | 4,970 |












