[Chimera-users] H-bond angle criteria (cut-off)

[Felipe Vasquez]

Hi,

I am using the H-bond function in UCSF Chimera and I noted that the relaxed
parameter for angle criteria is 20 by default. However, since that I have
no hydrogen atoms in the pdb structure, I assume that the angle theta
(donor-hydrogen-acceptor) cannot be used by Chimera as an angle criteria,
and so the psi or phi angles might be used instead. Which angle is actually
used in the relaxed parameters? And most important, what is the default
value of that angle (angle minus relaxing value)?

Thanks in advance for your help.

Best regards,


*Andrés Felipe Vásquez J., BSc, MSc.*
Grupo de Fisiología Molecular
Subdirección de Investigación Científica y Tecnológica
Dirección de Investigación en Salud Pública
Instituto Nacional de Salud
Avenida calle 26 No. 51-20 - Zona 6 CAN
+57 (1) 2207700 ext. 1419
Bogotá, D.C., Colombia
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