Angel Herraez wrote:

>It seems that one of the consequences of latest version of PDB 
>(called "remediated" data or wwPDB) is that oxygen atoms in phosphate 
>in nucleic acids have changed name, from O1P, O2P to OP1, OP2
>
>  
>
fixed for 11.3.33 and 11.2.15

>If needed, I can do further research into this and confirm it is in 
>fact a general change of rules in PDB, but with this file the change 
>is indeed so: 
>  
>
Please check also the following if you can:

>     "H5T", // 45 - 5' terminus hydrogen which replaces P + O1P + O2P
>     "O5T", // 46 - 5' terminus oxygen which replaces P + O1P + O2P
>     "O4'", // 49 - sugar ring 4' oxygen ... not present in +T ... 
> maybe others
>     "O2'", // 50 - sugar 2' oxygen, unique to RNA

    // nucleic acid backbone hydrogens
    //
    "1H5'", // 51 - first  equivalent H on sugar 5' carbon
    "2H5'", // 52 - second  equivalent H on sugar 5' carbon
    "H4'",  // 53 - H on sugar ring 4' carbon
    "H3'",  // 54 - H on sugar ring 3' carbon
    "1H2'", // 55 - first equivalent H on sugar ring 2' carbon
    "2H2'", // 56 - second equivalent H on sugar ring 2' carbon
    "2HO'", // 57 - H on sugar 2' oxygen, unique to RNA
    "H1'",  // 58 - H on sugar ring 1' carbon
    //
    "H3T",  // 59 - 3' terminus hydrogen

thanks.
Bob

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-- 
Robert M. Hanson
Professor of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr


If nature does not answer first what we want,
it is better to take what answer we get. 

-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900



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