PDB 1SR4

X-RAY DIFFRACTION2.00 Å3 chains3 ECOD domains

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

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Chain ACytolethal distending toxin subunit Aview chain

1 domain

Chain Bcytolethal distending toxin protein Bview chain

1 domain

Chain Ccytolethal distending toxin protein Cview chain

1 domain

#	Chain	Domain ID	Range	Family	Classification
1	A	e1sr4A1	A:57-223	CDtoxinA	6 → 6.1 → 6.1.1
2	B	e1sr4B1	B:23-281	Exo_endo_phos	246 → 246.3 → 246.3.1
3	C	e1sr4C1	C:25-178	CDtoxinA	6 → 6.1 → 6.1.1

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