Generalized Karplus calculator

Tool from: R. Stenutz
 

To calculate a coupling constant for a given dihedral angle (q) simply change the value in the form. To change the equation either type in the new coefficients or select a Karplus equation from the list below. You will have to press the calculate-button after any changes in the text fields to make things happen. This form does not require a network connection to work - just save it on your desktop and run it from there.

dihedral, q (deg)= 3J=
J= cos2(q)- cos(q)+

3JCOCH
Mulloy et al. Carbohydr. Res. 184 (1988) 39-46
Tvaroska et al. Carbohydr. Res. 189 (1989) 359-362
Anderson et al. J. Chem. Soc., Perkin 2 (1994) 1965-1967
3JCOCC
B. Bose et al. J. Am. Chem. Soc. 120 (1998) 11158-11173
Q. Xu and A. Bush Carbohydr. Res. 306 (1998) 335-339
M.J. Milton et al. Glycobiology 8 (1998) 147-153
3JCCCH
R. Aydin & H. Günther Mag. Reson. Chem. 28 (1990) 448-457
A. de Marco et al. Biochemistry 18 (1979) 3847-
3JPOCH
Lankhorst et al. J. Biomol. Struct. Dyn. 1 (1984) 1387-1405
3JCCOP
Lankhorst et al. J. Biomol. Struct. Dyn. 1 (1984) 1387-1405
3JHNCH
S. Ludvigsen et al. J. Mol. Biol. 217 (1991) 731-
A. Pardi et al. J. Mol. Biol. 180 (1985) 741-
V.F. BystrovProg. NMR Spectrosc. 10 (1976) 41-
3JCNCH
L.-F. Kao et al. J. Am. Chem. Soc. 107 (1985) 2323-
3JCNCC
L.-F. Kao et al. J. Am. Chem. Soc. 107 (1985) 2323-
3JHCOH
R.R. Fraser et al. Can. J. Chem. 47 (1969) 403-409