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	EF Hand-like EF Hand-like	2
All alpha proteins All alpha proteins	Ferritin-like Ferritin-like	2
All alpha proteins All alpha proteins	Four-helical up-and-down bundle Four-helical up-and-down bundle	4
All alpha proteins All alpha proteins	IHF-like DNA-binding proteins IHF-like DNA-binding proteins	2
Alpha and beta proteins (a+b) Alpha and beta proteins (a+b)	DNA breaking-rejoining enzymes DNA breaking-rejoining enzymes	2
Alpha and beta proteins (a+b) Alpha and beta proteins (a+b)	Jann2411-like Jann2411-like	2
Alpha and beta proteins (a+b) Alpha and beta proteins (a+b)	YrdC/RibB YrdC/RibB	2
Alpha and beta proteins (a+b) Alpha and beta proteins (a+b)	Zincin-like Zincin-like	16
Alpha and beta proteins (a/b) Alpha and beta proteins (a/b)	Carbamate kinase-like Carbamate kinase-like	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	2
Alpha and beta proteins (a/b) Alpha and beta proteins (a/b)	TIM beta/alpha-barrel TIM beta/alpha-barrel	4
Not classified Not classified	Not classified Not classified	20

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