The issue here is that "=" in this context is case-insensitive, with
altloc or color or anything.


If you want to be case-sensitive, you need to use "like"


select altloc like "A"


Bob



On Mon, Aug 17, 2015 at 5:16 PM, Eric Martz <ema...@microbio.umass.edu>
wrote:

> OK. I can easily work around it. But at first it confused me when I tried
> %a. I didn't think to try %A until days later. So it would be good to
> document that this atom expression %X is case sensitive, while "altloc ="
> is not (or maybe you want to change that to be consistent?).
>
> Thanks! Eric
>
>
> On 8/17/15 5:41 PM, Robert Hanson wrote:
>
> perhaps, but
>
> *The value of _atom_sites_alt.id <http://atom_sites_alt.id> must uniquely
> identify a record in the ATOM_SITES_ALT list. Note that this item need not
> be a number; it can be any unique identifier.*
>
>
> So just because at this point in time all are upper case, it can, in
> principle, be upper or lower case. I would rather not change the behavior.
> People who write their own PDB files could distinguish A from a.
>
> Bob
>
>
> On Mon, Aug 17, 2015 at 11:17 AM, Eric Martz <ema...@microbio.umass.edu>
> wrote:
>
>> Hi, Bob,
>>
>> 1. YES I will be very interested to test a new release in the next few
>> days.
>>
>> 2. I think the largest number of altlocs is 22 (A-V) in 1zir. The altloc
>> stats were kindly updated for all entries by Jaime Prilusky:
>> http://oca.weizmann.ac.il/reports/altLocations.txt
>>
>> So I don't think there has ever been a need for distinguishing altlocs by
>> upper vs. lower case (unlike chains). Numerals are also permitted as altloc
>> IDs (2plt, 1tal) so there are at least 36 permissible IDs available.
>>
>> So I think the case independence of altloc=A/altloc=a is what we want,
>> and %a should find %A (but currently does not).
>>
>> -Eric
>>
>>
>> On 8/17/15 9:26 AM, Robert Hanson wrote:
>>
>>
>>
>> On Sun, Aug 16, 2015 at 3:56 PM, Eric Martz < <ema...@microbio.umass.edu>
>> ema...@microbio.umass.edu> wrote:
>>
>>> Dear Bob,
>>>
>>> Here are three possible bugs (minor ones).
>>>
>>> ITEM ONE:
>>>
>>> "select %a" fails to select altloc="a".
>>> "select %A" succeeds.
>>> I report this "in case" it is a bug.
>>>
>>>
>> Are there both "A" and "a"?
>>
>>
>>
>>
>>> Jmol Aug 13:
>>>
>>> $ print _version
>>> 1403016
>>> $ load =1bsz
>>> HYDROLASE                               01-SEP-98   1BSZ
>>> PEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLE
>>> INHIBITOR POLYETHYLENE GLYCOL
>>> found biomolecule 1: A
>>> found biomolecule 2: B
>>> found biomolecule 3: C
>>>
>>> $ select altloc="A"
>>> 74 atoms selected
>>> $ select altloc="a"
>>> 74 atoms selected
>>> $ select %A
>>> 74 atoms selected
>>> $ select %a
>>> 0 atoms selected
>>> $
>>>
>>>
>> $ load =1bsz as 1bsz.pdb
>> 1bsz.pdb created
>> $ print  {*}.altloc.pivot
>> {
>>   ""  :  4272
>>   "A"  :  74
>>   "B"  :  74
>>   "C"  :  10
>>  }
>>
>>
>>
>>> ITEM TWO:
>>> The doc, under Atom Expressions,
>>> under " RasMol biomolecular residue specifications"
>>> says:
>>>
>>> %altLoc    %1 %A %?
>>>
>>> Either the doc needs revision, or %? is not working (should be same as
>>> "not %" I think)
>>>
>>> $ select %?
>>> script compiler ERROR: invalid model specification
>>> ----
>>>          select %? <<<<
>>> $ select %*
>>> 4430 atoms selected
>>> $ select all
>>> 4430 atoms selected
>>> $ select %
>>> 4272 atoms selected
>>> $ select not %
>>> 158 atoms selected
>>> $ print 4272 + 158
>>> 4430
>>>
>>>
>> doc error.
>>
>>
>>
>>> ITEM THREE:
>>> Note that the first line of the PDB TITLE field is truncated in the
>>> above report following the load command. Here are the first 3 lines of the
>>> PDB file with the lost portion in red:
>>>
>>> HEADER    HYDROLASE                               01-SEP-98
>>> 1BSZ
>>> TITLE     PEPTIDE DEFORMYLASE AS FE2+ CONTAINING FORM (NATIVE) IN COMPLEX
>>> WITH
>>> TITLE    2 INHIBITOR POLYETHYLENE GLYCOL
>>>
>>>
>>>
>> Ah --- right -- because some files have the PDB number in columns
>> starting with column 72. But I can test for that in the HEADER record.
>>
>> OK, that is fixed.
>>
>> I have a major update in prep. Are you able to test it in the next days,
>> Eric?
>>
>> Bob
>>
>>
>>
>>> Best regards, Eric
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> Jmol-users mailing list
>>> Jmol-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/jmol-users
>>>
>>>
>>
>>
>> --
>> Robert M. Hanson
>> Larson-Anderson Professor of Chemistry
>> Chair, Department 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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>
>
> --
> Robert M. Hanson
> Larson-Anderson Professor of Chemistry
> Chair, Department 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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>


-- 
Robert M. Hanson
Larson-Anderson Professor of Chemistry
Chair, Department 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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