Answer
(1) What is npm?
àSearch: PubMed    , Entrez Protein    (P06748)    ,NCBI OMIM
(2) How many npm proteins already discovered in different organisms?
àSearch:Entrez Protein    ,
àCross Search:
StringSearch-SeqWEB (SwissPlus    ,PIR    , GenePept    )
StringSearch-GCG    .
Lookup-SeqWEB    , GCG
àConfirm: Blastp
(3) Is there any nucleic acid sequence available?
àSearch:Entrez DNA,
àCross Search:SeqWEB/GCG-StringSearch,  Lookup (all DNA database), tBlastn
àConfirm:tBlastn