The relationship between protein structure and function: a comprehensive survey focusing on enzymes

Table 1, Broad Structural and Functional Categories
A. Functional categories in Swissprot 35

Cat.	Cat. Name	Abbrev.	# of Cat.
0.0.0	Non-enzymes	NONENZ	1
1..	Oxidoreductases	OX	86
2..	Transferases	TRAN	28
3..	Hydrolases	HYD	53
4..	Lyases	LY	15
5..	Isomerases	ISO	16
6..	Ligases	LIG	9
		Total:	208

List of the functional (enzymatic) categories in Swissprot and the abbreviations used throughout the paper. The values denote the number of 3-component EC-numbers in each category.
B. Structural categories in SCOP 1.35

Cat.	Fold Class	Abbrev.	# of Folds
1	All-alpha	A	81
2	All-beta	B	57
3	Alpha and beta	A/B	70
4	Alpha plus beta	A+B	91
5	Multidomain	MULTI	19
7	Small proteins	SML	43
		Total:	361

List of the structural classes in SCOP studied in this paper and the abbreviations used for the classes. Values denote the number of folds in each class in scop 1.35.