Table 1 Statistics of human kinase-specific substrates and their phosphorylation sites, derived from the Phospho.ELM database (version 9.0).

From: PhosphoPredict: A bioinformatics tool for prediction of human kinase-specific phosphorylation substrates and sites by integrating heterogeneous feature selection

Kinase

Number of substrate sequences

Number of phosphorylation sites

ATM (Ataxia telangiectasia mutated)

29

58

CaM (Calcium/calmodulin-dependent protein kinase)

37

62

CDKs (Cyclin-dependent kinases)

120

274

CK1 (Casein kinase 1)

20

56

CK2 (Casein kinase 2)

108

255

GRK (G protein-coupled receptor kinase)

18

73

GSK-3 (Glycogen synthase kinase 3)

32

60

MAPKs (Mitogen-activated protein kinases)

132

312

PKA (cAMP-dependent protein kinase)

138

218

PKB (Protein kinase B)

54

77

PKC (Protein kinase C)

150

308

SRC (Src-family tyrosine kinase)

63

100

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