Interfaces > The number of contact pairs of Secondary structures

Dimer Interface classification

Class	Fold	Number of chains
All alpha proteins All alpha proteins	DNA/RNA-binding 3-helical bundle DNA/RNA-binding 3-helical bundle	4
All alpha proteins All alpha proteins	Ferritin-like Ferritin-like	4
Alpha and beta proteins (a+b) Alpha and beta proteins (a+b)	Metallo-hydrolase/oxidoreductase Metallo-hydrolase/oxidoreductase	2
Alpha and beta proteins (a/b) Alpha and beta proteins (a/b)	Amidase signature (AS) enzymes Amidase signature (AS) enzymes	2
Alpha and beta proteins (a/b) Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases P-loop containing nucleoside triphosphate hydrolases	14
Alpha and beta proteins (a/b) Alpha and beta proteins (a/b)	TIM beta/alpha-barrel TIM beta/alpha-barrel	24
Not classified Not classified	Not classified Not classified	20

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