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Table 2 Environment specific amino acid compositions in percent.

From: Environment specific substitution tables for thermophilic proteins

 

Mes

t_arc

t_eu

 

mes

t_arc

t_bac

 

mes

t_arc

t_eu

HAH

2.4

1.7

2.3

EAH

2.9

1.8

2.4

CAH

2.4

2.2

2.8

HAE

11.3

14.5

14.2

EAE

7.4

9.8

9.3

CAE

6.6

8.9

8.6

HAK

9.3

10.6

8.1

EAK

8.1

10.3

7.2

CAK

7.4

8.5

6.5

HAR

7.4

8.5

10.1

EAR

6.8

7.8

9.2

CAR

5.5

6.5

7.1

HAD

7.1

7.0

5.9

EAD

4.7

5.8

5.7

CAD

8.7

9.6

9.5

HAS

5.5

5.4

3.9

EAS

6.9

5.1

4.1

CAS

8.0

7.2

6.0

HAN

4.5

4.2

2.9

EAN

3.8

3.5

2.5

CAN

6.4

5.9

4.5

HAQ

5.8

2.9

4.9

EAQ

4.3

2.0

3.1

CAQ

3.9

2.1

3.2

HAC

0.7

0.3

0.4

EAC

1.4

0.4

0.5

CAC

1.2

0.6

0.5

HAT

4.4

3.4

3.9

EAT

9.4

5.6

7.0

CAT

7.1

5.3

6.2

HAP

3.2

3.0

3.6

EAP

3.0

3.3

3.9

CAP

8.2

7.6

8.9

HAA

9.9

6.8

10.6

EAA

4.6

4.0

5.4

CAA

6.6

4.4

6.5

HAG

3.5

3.6

3.7

EAG

3.4

3.6

3.9

CAG

6.4

6.4

6.8

HAI

3.7

5.6

3.8

EAI

5.6

9.0

6.2

CAI

3.1

4.5

3.3

HAV

4.4

4.7

4.8

EAV

8.9

10.0

10.6

CAV

4.5

4.7

4.7

HAL

7.5

7.5

8.3

EAL

6.1

5.7

7.7

CAL

5.3

5.6

6.1

HAM

1.9

2.4

1.8

EAM

1.6

1.8

1.4

CAM

1.5

2.0

1.7

HAF

2.8

2.7

2.7

EAF

4.1

3.7

3.7

CAF

2.9

3.0

2.8

HAY

3.3

4.1

3.1

EAY

5.5

5.8

5.0

CAY

3.3

4.1

3.2

HAW

1.3

1.0

1.1

EAW

1.7

1.0

1.2

CAW

1.1

0.9

0.9

 

mes

t_arc

t_eu

 

mes

t_arc

t_eu

 

mes

t_arc

t_eu

HaH

1.8

1.3

1.5

EaH

1.6

1.2

1.2

CaH

2.8

2.3

2.7

HaE

2.1

2.9

2.7

EaE

1.6

1.7

1.6

CaE

2.5

3.0

2.8

HaK

1.5

2.1

1.7

EaK

1.1

1.6

1.3

CaK

1.6

2.3

1.9

HaR

2.2

2.3

2.5

EaR

1.7

1.6

1.7

CaR

2.2

2.5

2.6

HaD

2.0

2.2

1.9

EaD

2.0

2.1

2.1

CaD

4.3

3.8

4.1

HaS

3.9

4.6

3.3

EaS

3.8

3.5

2.8

CaS

6.5

6.4

5.4

HaN

1.8

1.8

1.6

EaN

1.8

1.7

1.6

CaN

3.7

3.4

2.8

HaQ

1.8

1.3

1.6

EaQ

1.5

0.9

0.8

CaQ

1.8

1.4

1.5

HaC

2.8

1.0

1.3

EaC

3.1

1.0

1.2

CaC

4.1

1.7

1.6

HaT

4.3

4.5

4.3

EaT

4.7

4.4

4.5

CaT

6.2

6.4

6.3

HaP

1.7

1.9

2.1

EaP

1.6

2.0

2.0

CaP

7.1

7.9

7.7

HaA

14.6

16.8

17.1

EaA

8.0

8.8

9.3

CaA

8.9

9.4

10.7

HaG

4.8

5.2

5.6

EaG

4.8

5.5

4.8

CaG

7.0

7.9

7.8

HaI

9.8

12.2

9.3

EaI

13.4

18.5

14.7

CaI

7.1

9.2

7.9

HaV

10.3

10.4

11.2

EaV

17.7

20.8

22.9

CaV

8.8

9.5

10.0

HaL

18.2

15.8

19.0

EaL

14.0

11.5

14.8

CaL

11.2

10.2

11.7

HaM

3.9

3.7

3.3

EaM

2.7

2.8

2.5

CaM

2.8

2.6

2.6

HaF

6.4

5.0

5.2

EaF

7.8

5.5

5.4

CaF

6.0

5.2

5.3

HaY

3.9

3.8

3.2

EaY

5.0

4.1

3.7

CaY

3.8

4.0

3.4

HaW

2.2

1.0

1.4

EaW

2.0

0.8

1.1

CaW

1.8

1.0

1.2

  1. Mes stands for amino acid composition of mesophilic proteins, t_arc for amino acid composition of thermophilic archaeal proteins and t_eu for amino acid composition of thermophilic eubacterial proteins. HA stands for exposed alpha helices, Ha for non exposed alpha helices, EA for exposed beta strands, Ea for non exposed beta strands, CA for exposed coil and Ca for non exposed coil. The third letter is the standard code for amino acids. Values in bold significantly differ (P < 0.01) between thermophilic and mesophilic proteins.