#pdbid|chain|deposition date|is S/K-not|(slip)knot types; 6mpb|A|2019-11-15|S|+3.1 +3.1; 6mp6|A|2019-11-15|S|+3.1 +3.1; 6rvy|A|2019-09-06|S|+3.1 +3.1; 6rvx|A|2019-09-06|S|+3.1 +3.1;