Re: [ccp4bb] Rotation search using the Patterson in a non-spherical neighbourhood of the origin

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Subject: Re: Rotation search using the Patterson in a non-spherical neighbourhood of the origin
From: Kay Diederichs kay {- dot -} diederichs {- at -} UNI-KONSTANZ {- dot -} DE
Date: 2007-12-02

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From: Bernhard Rupp bernhardrupp {- at -} SBCGLOBAL {- dot -} NET
Date: 2007-12-02

Subject: Re: Rotation search using the Patterson in a non-spherical neighbourhood of the origin
From: Phil Evans pre {- at -} MRC-LMB {- dot -} CAM {- dot -} AC {- dot -} UK
Date: 2007-12-02

The maximum likelihood method used in Phaser doesn't use any cut-off
as it doesn't use the Patterson formulation. It might work better for
such an elongated case

Phil

On 28 Nov 2007, at 17:04, Pietro Roversi wrote:

> Dear everyone,
> is any of the currently available
> molecular replacement programs capable of accepting a
> description of an ellipsoid (rather than the radius of a
> sphere)
> to define the portion of the Patterson around the origin to be
> used in a Molecular
> Replacement rotation search? Our search model is an elongated
> object and we are searching in a cell with a=205 b=100 c=21
> Angstrom ... ;-)
>
> Ciao
>
> Pietro
> --
> Pietro Roversi
> Sir William Dunn School of Pathology, Oxford University
> South Parks Road, Oxford OX1 3ER, England UK
> Tel. 0044-1865-275385

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Subject: Re: coot-bones not showing
From: Bernhard Rupp bernhardrupp {- at -} SBCGLOBAL {- dot -} NET
Date: 2007-12-02