> >If you have an HNcoCA there is no *direct* transfer between N and CA.
> >The transfer is indirect, in two steps, via the CO. With the current model
> >there is no 'TransferType' to represent that. The obvious solution is to
> >not put in an ExpTransfer. Alternatively one could change the model, but
> >what TransferType should you use for what might be arbitrary multiply
> >relaued transfers?
> >
> >Let us see what Tim says,
I would prefer for things to remain as they are. It looks that everything
really is set up correctly for the HNcoCA, or at least as I intended
even if people don't agree.
I will only ever set up the ExpTransfers that are commonly useful for
Analysis, so that I don't have to delve into the prototypes. The current
ExpTransferType enumeration is fine for me and I don't want to add to the
amount of curation and checking unless there is a strong reason.
If more details are required then it is always available in the
NmrExpPrototype package.
> 1. again this wan't clear from the documentation. I assumed that
> exptransfers composed a net which included all dimensions, with the
> assumption that this was the way to workout how you expDimd's were
> connected together. Also, how do you use this facility if arbbitary
> transfers are missing?
Personally I don't believe there is much of a problem with the
documentation. ExpTransfer is optional and is not described as being a
complete network. The only thing I would possibly add is a mention of the
prototype package.
> 2. so I guess the more useful question might be how do I go about
> what I am trying to do. I was using the expTransfers to work out which
> dims are connected in paticular manners (one bond transfer, multibond
> transfer, through space)
>
> 3. the answer of what transferType includes the possibilities:
> a. have an array of strings instead of a string (in some cases
> you might need higher level structures, I can't think of exact cases but
> I am sure it is possible to have different means of tranfer going on at
> the same time in terms of the spin physics)
> b. a relayed type which would just cover j based connections
> (this would cover a mutitude of sins, but maybe too wide)
> c. a set of string combinations from transfer types as a string
> (ugly, and you have to hope you don't have to define a combinatorial set
> of poissibilities).
The NmrExpPrototype package is where you should be looking for
this. It is quite comprehensive...
T.
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Dr Tim Stevens Email: [log in to unmask]
Department of Biochemistry [log in to unmask]
University of Cambridge Phone: +44 1223 766022 (office)
80 Tennis Court Road +44 7816 338275 (mobile)
Old Addenbrooke's Site +44 1223 364613 (home)
Cambridge CB2 1GA WWWeb: http://www.bio.cam.ac.uk/~tjs23
United Kingdom http://www.pantonia.co.uk
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