PDB 2PKS

X-RAY DIFFRACTION2.50 Å4 chains3 ECOD domains

3D Structure(domains colored, ligands/nucleic acids shown)

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Chain A-B-Cview chain

1 domain

Chain BThrombin heavy chain fragmentview chain

1 domain

Chain CThrombin heavy chain fragmentview chain

1 domain

#	Chain	Domain ID	Range	Family	Classification
1	A-B-C	e2pks.1	A:1-27,B:1-147,C:1-102	Trypsin,Thrombin_light	1 → 1.1 → 1.1.5
2	B	e2pksB01	B:37-183	Trypsin	1 → 1.1 → 1.1.17
3	C	e2pksC01	C:185-286	Trypsin	1 → 1.1 → 1.1.17

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors