Table 2

Difficult families. Difficult families for all of the measures. For these seven CDD families all of the six measures had sensitivities of under 0.50 at the 5% error rate.

CDD acc

CDD short name

SCOP fold class

cd00945

Aldolase_Class_I

TIM β/α barrel

cd00529

RuvC_resolvase

Ribonuclease H-like motif

cd01120

RecA-like_NTPases

P-loop containing nucleoside triphosphate hydrolases

cd00079

HELICc

P-loop containing nucleoside triphosphate hydrolases

cd00453

FTBP_aldolase_II

TIM β/α barrel

cd00102

IPT

Immunoglobulin-like β-sandwich

cd00234

RPA14

OB-fold

Madej et al. BMC Structural Biology 2007 7:23   doi:10.1186/1472-6807-7-23