While at Yale , Altman 's Nobel Prize work came with the analysis of the catalytic properties of the ribozyme RNase P. RNase P is a ribonucleoprotein particle consisting of both a structural RNA molecule and one ( in prokaryotes ) or more ( in eukaryotes ) proteins .
Altman 's Nobel Prize work came with the analysis of the catalytic properties of the ribozyme RNase P. RNase P is a ribonucleoprotein particle , part RNA and part protein .