TRIPS
Tandem Repeats In Protein sequences

Tandem Single Amino Acids Repeats
Observed in 80,000 proteins from SWISS-PROT database (Release 38, July 1999)

 

Number of proteins containing the repeats

 

Repeat
length >=5

Repeat
length >=10

Repeat
length >=15

Repeat length >=20 allowing 10% mismatch

Hydrophobic

Poly-Glycine (G)

679

76

24

29

Poly-Alanine (A)

1078

87

16

8

Poly-Valine (V)

61

0

0

0

Poly-Leucine (L)

1019

10

2

0

Poly-Isoleucine (I)

37

0

0

0

Poly-Cysteine (C)

8

1

0

0

Poly-Methionine (M)

11

0

0

0

Poly-Tyrosine (Y)

11

1

0

0

Poly-Phenylalanine (F)

22

2

0

0

Poly-Tryptophane (W)

0

0

0

0

Poly-Proline (P)

630

39

11

11

Hydrophilic - polar uncharged

Poly-Serine (S)

977

70

25

29

Poly-Threonine(T)

270

25

3

6

Poly-Asparagine (N)

257

50

23

29

Poly-Glutamine (Q)

622

173

73

74

Hydrophilic -polar acidic

Poly-Aspartic Acid (D)

341

26

11

10

Poly-Glutamic Acid (E)

804

74

20

24

Hydrophilic -polar basic

Poly-Lysine (K)

289

2

0

0

Poly-Arginine (R) 

326

5

0

0

Poly-Histidine (H)

171

40

0

0


© Division of Biochemical Sciences, National Chemical Laboratory, Pune 411008, INDIA