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 | 10 |
| 1977 | 13 |
| 1978 | 2 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 8 |
| 1982 | 18 |
| 1983 | 14 |
| 1984 | 14 |
| 1985 | 15 |
| 1986 | 11 |
| 1987 | 17 |
| 1988 | 33 |
| 1989 | 54 |
| 1990 | 84 |
| 1991 | 82 |
| 1992 | 89 |
| 1993 | 312 |
| 1994 | 637 |
| 1995 | 510 |
| 1996 | 595 |
| 1997 | 853 |
| 1998 | 1,123 |
| 1999 | 1,413 |
| 2000 | 1,537 |
| 2001 | 1,691 |
| 2002 | 1,867 |
| 2003 | 2,476 |
| 2004 | 3,112 |
| 2005 | 3,376 |
| 2006 | 3,791 |
| 2007 | 4,204 |
| 2008 | 4,244 |
| 2009 | 4,233 |
| 2010 | 4,470 |
| 2011 | 4,319 |
| 2012 | 4,659 |
| 2013 | 4,970 |
| 2014 | 6,059 |
| 2015 | 5,703 |
| 2016 | 6,398 |
| 2017 | 6,815 |
| 2018 | 7,011 |
| 2019 | 7,346 |
| 2020 | 8,783 |
| 2021 | 8,191 |
| 2022 | 9,700 |
| 2023 | 10,193 |
| 2024 | 10,570 |
| 2025 | 11,485 |
| 2026 | 1,827 |














