Hi,

I have a tool which fails if R groups are present in a compound, 
an example is shown below.

Question: is there a (simple) way to filter for these compounds ?

I did not find a way to use "R#" in SMARTS, and I could not find
a property that could be used as filter basis 
(I though I could try to check the "> <Mass>", 
 but it is present even for CPDs with an R group)

I could not find a way to check for "M  RGP", 
but that would be a solution.

Anything obvious I missed ?

Thanks in advance, 
Steffen

-- 
IPB Halle                    AG Massenspektrometrie & Bioinformatik
Dr. Steffen Neumann          http://www.IPB-Halle.DE
Weinberg 3                   http://msbi.bic-gh.de
06120 Halle                  Tel. +49 (0) 345 5582 - 1470
                                  +49 (0) 345 5582 - 0
sneumann(at)IPB-Halle.DE     Fax. +49 (0) 345 5582 - 1409







$$$$

  Marvin  05010815362D          

 19 18  0  0  1  0            999 V2000
   -4.2868   -0.1904    0.0000 R#  0  0  0  0  0  0  0  0  0  0  0  0
   -3.5724    0.2221    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1434    0.2221    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4289   -0.1904    0.0000 C   0  0  3  0  0  0  0  0  0  0  0  0
   -0.7145    0.2221    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.1904    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.8579   -0.1904    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.4289   -0.1904    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.1434    0.2221    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.8579   -0.1904    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.2868   -0.1904    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.5724    0.2221    0.0000 N   0  3  3  0  0  0  0  0  0  0  0  0
    0.7145    0.2221    0.0000 P   0  0  3  0  0  0  0  0  0  0  0  0
   -1.4291   -1.0154    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -3.5724    1.0470    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.7142    1.0470    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.5719    1.0468    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.2863    0.6343    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.7141   -0.6030    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
 15  2  2  0  0  0  0
  4  3  1  0  0  0  0
  4 14  1  0  0  0  0
  4  5  1  0  0  0  0
  6  5  1  0  0  0  0
  2  7  1  0  0  0  0
  7  3  1  0  0  0  0
  9  8  1  0  0  0  0
 10  9  1  0  0  0  0
 12 10  1  0  0  0  0
 11 12  1  0  0  0  0
 17 12  1  0  0  0  0
 12 18  1  0  0  0  0
 13  6  1  0  0  0  0
  8 13  1  0  0  0  0
 16 13  2  0  0  0  0
 13 19  1  0  0  0  0
M  CHG  1  12   1
M  RGP  1   1   1
M  END
> <ChEBI ID>
CHEBI:11230

> <ChEBI Name>
1-O-acylglycerophosphocholine

> <Star>
3

> <Definition>
A glycerophosphocholine having an unspecified <element>O</element>-acyl
substituent at the 1-position of the glycerol fragment.

> <Secondary ChEBI ID>
CHEBI:53029

> <SMILES>
C[N+](C)(C)CCOP(O)(=O)OCC(O)COC([*])=O

> <Formulae>
C9H20NO7PR

> <Charge>
+1

> <Mass>
285.23140

> <Synonyms>
1-O-acylglycerophosphocholines
1-acylglycerophosphocholine
lysophosphatidylcholine

> <PubChem Database Links>
49742721

> <UniProt Database Links>
ACBP6_ARATH
PLPL8_MOUSE
PLPL8_RABIT

> <Last Modified>
21 Oct 2010

$$$$




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