Re: [ccp4bb] size of a flexible pdb structure

2014-03-05 Thread jai mohan
Dear Rajan,
Since you raised your question about calculating the radius of your molecule.
here my suggestion, a bit long back I heard about the program HYDROPRO
I am not sure its going to be work for you, but you may give a try.
I think the program calculates the radius of gyration ! 
best wishes,

Dr. S. M. Jaimohan







On Wednesday, 5 March 2014 8:53 PM, Tim Gruene  
wrote:
 
Dear Rajan kumar choudhary,

could you explain why you expect the volume to depend on the conformation of the
molecule? Do you have some effective volume in mind, e.g. the elution volume
during size exclusion chromatography?

Regards,
Tim


On Wed, Mar 05, 2014 at 08:42:21PM +0530, rajan kumar wrote:
> Dear all,
> 
> sorry for asking an off topic question. My protein is composed of two
> domains connected by a flexible linker (15aa). after 50ns simulation i came
> across the fact that one domain is flexible. so my question is that how
> could i be able to calculate the size of molecule or radius of my molecule
> and which conformation i should prefer to calculate the size of molecule.
> your any suggestion will be very helpful.
> thank you all in advance
> 
> with best regards
> -- 
> *Rajan kumar choudhary*
> *Senior Research Fellow*
> *Department of Atomic Energy(Govt.Of India)*
> *ACTREC TATA Memorial Center *
> *Kharghar Navi-Mumbai*
> *Mumbai-410210*
> *India*

-- 
--
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A

Re: [ccp4bb] size of a flexible pdb structure

2014-03-05 Thread Monica Mittal
 Hi rajan

I guess calculating radius of gyration for your whole protein with
time will tell you about the size variation at difeerent time points
or you canm say different frames. This is how you can cluster your
whole trajectory PDBs into a few clusters and then get the
representative PDBs from each cluster to finally select what you want.

Best
Monica

On Wed, Mar 5, 2014 at 8:42 PM, rajan kumar  wrote:
> Dear all,
>
> sorry for asking an off topic question. My protein is composed of two
> domains connected by a flexible linker (15aa). after 50ns simulation i came
> across the fact that one domain is flexible. so my question is that how
> could i be able to calculate the size of molecule or radius of my molecule
> and which conformation i should prefer to calculate the size of molecule.
> your any suggestion will be very helpful.
> thank you all in advance
>
> with best regards
> --
> Rajan kumar choudhary
> Senior Research Fellow
> Department of Atomic Energy(Govt.Of India)
> ACTREC TATA Memorial Center
> Kharghar Navi-Mumbai
> Mumbai-410210
> India
>


Re: [ccp4bb] size of a flexible pdb structure

2014-03-05 Thread Tim Gruene
Dear Rajan kumar choudhary,

could you explain why you expect the volume to depend on the conformation of the
molecule? Do you have some effective volume in mind, e.g. the elution volume
during size exclusion chromatography?

Regards,
Tim

On Wed, Mar 05, 2014 at 08:42:21PM +0530, rajan kumar wrote:
> Dear all,
> 
> sorry for asking an off topic question. My protein is composed of two
> domains connected by a flexible linker (15aa). after 50ns simulation i came
> across the fact that one domain is flexible. so my question is that how
> could i be able to calculate the size of molecule or radius of my molecule
> and which conformation i should prefer to calculate the size of molecule.
> your any suggestion will be very helpful.
> thank you all in advance
> 
> with best regards
> -- 
> *Rajan kumar choudhary*
> *Senior Research Fellow*
> *Department of Atomic Energy(Govt.Of India)*
> *ACTREC TATA Memorial Center *
> *Kharghar Navi-Mumbai*
> *Mumbai-410210*
> *India*

-- 
--
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A



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[ccp4bb] size of a flexible pdb structure

2014-03-05 Thread rajan kumar
Dear all,

sorry for asking an off topic question. My protein is composed of two
domains connected by a flexible linker (15aa). after 50ns simulation i came
across the fact that one domain is flexible. so my question is that how
could i be able to calculate the size of molecule or radius of my molecule
and which conformation i should prefer to calculate the size of molecule.
your any suggestion will be very helpful.
thank you all in advance

with best regards
-- 
*Rajan kumar choudhary*
*Senior Research Fellow*
*Department of Atomic Energy(Govt.Of India)*
*ACTREC TATA Memorial Center *
*Kharghar Navi-Mumbai*
*Mumbai-410210*
*India*