[gmx-users] NADP in ffG43a1.rtp

[David van der Spoel]

Satyan Sharma wrote:
> Hi all,
> I wanted to make a topology for CoenzymeA and thus I was looking at NADP
> rtp entry  in ffG43a1.rtp and realsied that there are only 2 Phosphorus atoms (so 2
> phsophates) in NADP. Here are the two entries:
>    AP     P     0.76000     0
>    NP     P     0.76000     1
> 
> But NADP has three phosphates.
> http://ead.univ-angers.fr/~jaspard/Page2/COURS/1VELATPOxRedNAD/3FigCoenzymes/222CoEnzymes.htm
> 
> Am I missing something..being stupid!!
Don't think so. The entry has only two phosphates, and it is the lower 
group in the picture that is missing. After a look in a biochemistry 
book it seems that this is in fact NAD+, rather than NADP+.

> 
> Cheers,
> -Satyan
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,  	75124 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
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