case,
thanks, I add unitname in, and it works.
a=loadpdb *.pdb
bond a.residue-number.SG a.residue-number.SG
and it works.
Thanks for your kind help
Xueqin
======= 2010-04-03 22:34:05 ÄúÔÚÀ´ÐÅÖÐдµÀ£º=======
>On Sat, Apr 03, 2010, pxq wrote:
>>
>> I am trying to add S-S bond to my prmtop in tleap. After load .pdb,
>> I tried " bond residue-number.SG residue-number.SG " and the error
>> report is " bond: Argument #1 is type String must be of type: [atom]
>> usage: bond <atom1> <atom2> [order]"
>>
>> I have also tried
>> " bond residue-name.residue-number.SG residue-name.residue-number.SG S "
>> "bond trx.residue-number.SG trx.residue-number.SG "
>> But faild. And I am sure the residue number and atom name (SG) are right.
>
>You don't say how your are "sure". The sytax is
>unitname.residuenumber.atomname. Use the "desc" command to find out the exact
>names LEaP is using for your system.
>
>....dac
>
>
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Received on Sun Apr 04 2010 - 08:30:02 PDT