[Ontology-editors] [Refgenome] Cell fractions

Pankaj Jaiswal (OSU) jaiswalp at science.oregonstate.edu
Wed Feb 11 16:56:13 PST 2009


Harold,

But I guess the confirmation that the activity was present in the 
fraction-X was estimated by IDA / western. Whether it was present/absent 
in mutant/reference is a different issue. The confirmation is based on 
the exact experimental method i.e. western/enzymatic assay of the 
fraction and not the genotype (mutant/ref/WT) of the individual being 
assayed.

I concur with Chris it should be limited to only IDA and IEP.

Pankaj

Harold Drabkin wrote:
> No, not necessarily. If a  cell-fractions from mutant and wild type were 
> examined for the presence of the protein by either western or assay, the 
> difference between the mutant and wild type is the basis for the IMP. 
> Or, a western could be done and it appears in a sample from one fraction 
> in wild type but not mutant. If the comparison is not made, and it is 
> some activity measurement in a crude assay, the identify of the protein 
> cannot be made.
> 
> hd
> 
> Chris Mungall wrote:
>> Following on from our call this morning - it seems the cell fraction 
>> terms may be around for a while yet. However, I was wondering what 
>> people's opinions were on evidence codes for fraction terms. I'm not 
>> really sure how valid it is to make an ISS to a fraction term. Or an 
>> IMP. Shouldn't IDA be the only code allowed?
>>
>> Here are some IMPs for microsome:
>>
>> http://amigo.geneontology.org/cgi-bin/amigo/term-assoc.cgi?gptype=all&speciesdb=all&taxid=all&evcode=IMP&term_assocs=all&term=GO%3A0005792&action=filter 
>> <http://amigo.geneontology.org/cgi-bin/amigo/term-assoc.cgi?gptype=all&speciesdb=all&taxid=all&evcode=IMP&term_assocs=all&term=GO%3A0005792&action=filter> 
>>
>>
>> I followed up the mouse one and am not really sure how the IMP is 
>> justified
>>
>> Here are some numbers for the genes annotated to cell fractions using 
>> different evidence codes
>>
>>>> +------------+---------------------------------------------+--------------------+------+---------+ 
>>>> | acc        | name                                        | 
>>>> term_type          | code | n_genes | 
>>>> +------------+---------------------------------------------+--------------------+------+---------+ 
>>>> | GO:0000267 | cell fraction                               | 
>>>> cellular_component | IDA  |       3 | | GO:0000267 | cell 
>>>> fraction                               | cellular_component | NAS  
>>>> |       1 | | GO:0000299 | integral to membrane of membrane 
>>>> fraction   | cellular_component | IDA  |      27 | | GO:0000299 | 
>>>> integral to membrane of membrane fraction   | cellular_component | 
>>>> IPI  |       2 | | GO:0000299 | integral to membrane of membrane 
>>>> fraction   | cellular_component | ISA  |       1 | | GO:0000299 | 
>>>> integral to membrane of membrane fraction   | cellular_component | 
>>>> ISO  |       2 | | GO:0000299 | integral to membrane of membrane 
>>>> fraction   | cellular_component | ISS  |      16 | | GO:0000299 | 
>>>> integral to membrane of membrane fraction   | cellular_component | 
>>>> NAS  |       1 | | GO:0000299 | integral to membrane of membrane 
>>>> fraction   | cellular_component | TAS  |       3 | | GO:0000300 | 
>>>> peripheral to membrane of membrane fraction | cellular_component | 
>>>> IDA  |      28 | | GO:0000300 | peripheral to membrane of membrane 
>>>> fraction | cellular_component | IPI  |       1 | | GO:0000300 | 
>>>> peripheral to membrane of membrane fraction | cellular_component | 
>>>> ISA  |       1 | | GO:0000300 | peripheral to membrane of membrane 
>>>> fraction | cellular_component | ISO  |       3 | | GO:0000300 | 
>>>> peripheral to membrane of membrane fraction | cellular_component | 
>>>> ISS  |       6 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | IDA  |     
>>>> 615 | | GO:0005624 | membrane fraction                           | 
>>>> cellular_component | IGI  |       1 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | IMP  
>>>> |       5 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | ISA  
>>>> |       4 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | ISO  
>>>> |      19 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | ISS  |     
>>>> 280 | | GO:0005624 | membrane fraction                           | 
>>>> cellular_component | NAS  |      17 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | RCA  
>>>> |       2 | | GO:0005624 | membrane 
>>>> fraction                           | cellular_component | TAS  |     
>>>> 249 | | GO:0005625 | soluble fraction                            | 
>>>> cellular_component | IDA  |     428 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | IMP  
>>>> |       2 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | ISA  
>>>> |       1 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | ISO  
>>>> |       8 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | ISS  
>>>> |      99 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | NAS  
>>>> |      10 | | GO:0005625 | soluble 
>>>> fraction                            | cellular_component | TAS  
>>>> |     135 | | GO:0005626 | insoluble 
>>>> fraction                          | cellular_component | IDA  |      
>>>> 65 | | GO:0005626 | insoluble fraction                          | 
>>>> cellular_component | ISO  |       1 | | GO:0005626 | insoluble 
>>>> fraction                          | cellular_component | ISS  |      
>>>> 32 | | GO:0005626 | insoluble fraction                          | 
>>>> cellular_component | TAS  |       5 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> IDA  |     240 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> IMP  |       5 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> IPI  |       3 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> ISA  |       2 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> ISO  |       4 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> ISS  |     105 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> NAS  |      97 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> RCA  |       1 | | GO:0005792 | 
>>>> microsome                                   | cellular_component | 
>>>> TAS  |      40 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> IDA  |      77 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> IEP  |       1 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> ISA  |       1 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> ISO  |       5 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> ISS  |      34 | | GO:0019717 | 
>>>> synaptosome                                 | cellular_component | 
>>>> NAS  |       2 | | GO:0019718 | rough 
>>>> microsome                             | cellular_component | IDA  
>>>> |       5 | | GO:0019719 | smooth 
>>>> microsome                            | cellular_component | IDA  
>>>> |       1 | | GO:0042598 | vesicular 
>>>> fraction                          | cellular_component | IDA  |      
>>>> 12 | | GO:0042598 | vesicular fraction                          | 
>>>> cellular_component | ISS  |       7 | 
>>>> +------------+---------------------------------------------+--------------------+------+---------+ 
>>>> 53 rows in set (36.97 sec) 
>>
>> ------------------------------------------------------------------------
>>
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> 
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-- 
Pankaj Jaiswal
Assistant Professor
Dept. of Botany and Plant Pathology
3082 Cordley Hall
Oregon State University
Corvallis, OR, 97331-2902, USA

Ph.: +1-541-737-8471
Fax: +1-541-737-3573
Web: www.gramene.org
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