[BioC] incorrect gene symbols in annotate

[John Zhang]

You may get somewhat different results depending on the source you are comparing 
the mappings to and even the time when the comparisons are made. We try to keep 
the mappings updtated as frequently as we can. 

The link "MetaData/Annotation Packages" on Bioconductor web site contains a 
brief description of the building process of the annotation data packages and 
the vignettes "How to use AnnBuilder" and "Basic Functions of AnnBuilder" 
contain instructions on how to build an annotation data package. You may try to 
build your own annotation data package to make sure your annoataions are 
current.

 
>
>I have come accross some errors when linking  probe IDs with  gene symbols.
>
>In most cases the probe ID retrieves the corredct gene symbol, 
>however the following probe IDs should correspond to CD4 antigen, CD4 
>anitigen, and FCGR3A respectively.
>
>genes<-c("203547_at","216424_at","204006_s_at")
>symbol<-multiget(genes,env=hgu133aSYMBOL)
>
>symbol
>$"203547_at"
>[1] "C3F"
>
>$"216424_at"
>[1] NA
>
>$"204006_s_at"
>[1] "FCGR3B"
>
>
>
>Regards
>
>
>Anthony
>
>
>
>R session codes
>
>
>library(biobase)
>library(annotate)
>library(hgu133a)
>
>genes<-c("203547_at","216424_at","204006_s_at")
>symbol<-multiget(genes,env=hgu133aSYMBOL)
>-- 
>______________________________________________
>
>Anthony Bosco - Cell Biology Research Assistant
>
>Institute for Child Health Research
>(Company Limited by Guarantee ACN 009 278 755)
>Subiaco, Western Australia, 6008
>
>Ph 61 8 9489  , Fax 61 8 9489 7700
>email anthonyb at ichr.uwa.edu.au
>______________________________________________
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>
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Jianhua Zhang
Department of Biostatistics
Dana-Farber Cancer Institute
44 Binney Street
Boston, MA 02115-6084