Table 2. Dataset of 16 protein–ssDNA complexes selected from the NDB (December 7, 1999).

Family	PDB	NDB	Protein name	Res.	No. bases
1	2KFN	PD0014	Exonuclease: Klenow fragment	2.03	3
	2KFZ	PD0015	Exonuclease: Klenow fragment	2.03	3
	1KFS	PDE0137	Exonuclease: Klenow fragment	2.10	3
	1KRP	PDE0138	Exonuclease: Klenow fragment	2.20	3
	1KSP	PDE0136	Exonuclease: Klenow fragment	2.30	3
2	4DPV	PDV006	Coat protein CPV	2.90	11
	1IJS	PDV005	Coat protein	3.25	11
	1MVM	PDV007	Coat protein MMV	3.50	16
3	1RTA	PDE0116	Ribonuclease A	2.50	4
	1RCN	PDE0117	Ribonuclease A	2.50	4
	1RBJ	PDE023	Ribonuclease B	2.70	4
4	1JMC	PDO001	Replication protein A	2.40	8
5	1CBV	PDA001	FAB antibody	2.66	3
6	1LAU	PDE026	Uracil DNA glycosylase	1.80	3
7	1NOY	PDE090	DNA polymerase fragment	2.20	3
8	2BPA	PDV002	Capsid proteins GPF, GPG, GPJ	3.00	5

The PDB codes shown in bold are those structures included in the non-homologous dataset used for the interface parameter calculations (see Materials and Methods).