Amino acid residues

Ala

Glu

Asp

Val

Gly

Ser

Asn

Lys

Gly

Ala

Ile

Ile

Gly

Leu

Met

Val

Gly

Gly

Val

Val

Ile

Ala

1 - 20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

ThT

Dimer

A1

B1

MD

Dimer

A1

B1

Trimer

A1

B1

C1