| 1DFA | A:200-303; A:304-398 | CRYSTAL STRUCTURE OF PI-SCEI IN C2 SPACE GROUP |
| 1EF0 | A:183-303; A:304-398 | CRYSTAL STRUCTURE OF PI-SCEI MINIPRECURSOR |
| 1JVA | B:466-586; B:587-681; A:587-681; A:466-586 | CRYSTAL STRUCTURE OF THE VMA1-DERIVED ENDONUCLEASE BEARING THE N AND C EXTEIN PROPEPTIDES |
| 1UM2 | B:466-586; A:466-586; B:587-681; A:587-681 | CRYSTAL STRUCTURE OF THE VMA1-DERIVED ENDONUCLEASE WITH THE LIGATED EXTEIN SEGMENT |
| 1VDE | A:183-303; B:183-303; A:304-398; B:304-398 | PI-SCEI, A HOMING ENDONUCLEASE WITH PROTEIN SPLICING ACTIVITY |
| 2AB5 | A:384-517; B:384-517; B:256-383; A:257-383 | BI3 LAGLIDADG MATURASE |
| 3C0W | A:3-122; A:123-225 | I-SCEI IN COMPLEX WITH A BOTTOM NICKED DNA SUBSTRATE |
| 3C0X | A:3-122; A:123-225 | I-SCEI IN COMPLEX WITH A TOP NICKED DNA SUBSTRATE |
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