format problem



Hi all,

Is there a way to "map the atoms" of a pdb file of a crystal structure taken from Brookhaven data bank and use it in InsightII and perform minimization on it.
The program complained and did not recognise the structure, here is the error message, when I tried to attribute the potentials  :

error: CRO:U8:C5' has open or undefined valences
error: CRO:U8:C4' has open or undefined valences
error: CRO:U8:C3' has open or undefined valences
error: CRO:U8:O3' has open or undefined valences
error: CRO:U8:C2' has open or undefined valences
error: CRO:U8:C1' has open or undefined valences
error: CRO:U8:N4 has open or undefined valences

I need a program which allows the protonation of the structure and make it recognised by insightII and use it to perform minimization.
 

Thank you.
 
 

-- 
 Pierre TRAN