This is strange (and worrisome).  Why can't I get sensible mappings for
p15/CDKN2A from org.Hs.eg.db?

> mget(grep('NM_',unlist(mget(org.Hs.egALIAS2EG[['P15']], org.Hs.egACCNUM)),
val=T), org.Hs.egSYMBOL, ifnotfound=NA)
$NM_004936
[1] NA

$NM_078487
[1] NA

$NM_006713
[1] NA

$NM_013248
[1] NA

> sessionInfo()
R version 2.14.0 Under development (unstable) (2011-04-21 r55577)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=C              LC_MESSAGES=C
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices datasets  utils     methods   base

other attached packages:
[1] org.Hs.eg.db_2.5.0   RSQLite_0.9-4        DBI_0.2-5
[4] AnnotationDbi_1.15.3 Biobase_2.13.1       gtools_2.6.2
[7] reshape_0.8.4        plyr_1.4

loaded via a namespace (and not attached):
[1] tools_2.14.0


-- 
If people do not believe that mathematics is simple, it is only because they
do not realize how complicated life is.
John von Neumann<http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Von_Neumann.html>

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