Daniela Teixeira
= Daniela Teixeira
{c}
\b[Daniela Teixeira] is a <molecular biologist> whose published research investigated <P-body assembly> and the relationship between <messenger RNA> organization and <biological translation>. She was first author of a2005 study with <Roy Parker>'s group showing that yeast <P-bodies> depend on <RNA> for their assembly and contain nontranslating messages.<Processing bodies require RNA for assembly and contain nontranslating mRNAs by Daniela Teixeira and others>[Primary byline and Abstract, RNA dependence and nontranslating mRNAs]{ref}
The study combined cellular observations with experiments on enriched P-body preparations. Digestion with a <ribonuclease> disrupted the preparations, testing whether RNA contributed to their integrity. In cells, perturbing <translation initiation> and trapping messages in <polysomes> produced contrasting P-body responses. Those comparisons distinguished effects on RNA availability from the vague statement that translation had been inhibited.<Processing bodies require RNA for assembly and contain nontranslating mRNAs by Daniela Teixeira and others>[Abstract; Figure6 and associated Results, RNA digestion and translation-state comparisons]{ref}
An original image-analysis example illustrates a limit of such observations. Suppose a hypothetical cell contains ten visible foci with four arbitrary fluorescence units each, while a second condition contains five foci with eight units each. Both have40 units assigned to the foci. Counting foci alone would miss that equivalence; conversely, equal total signal would not establish identical molecular composition or <RNA decay> activity. The numbers are stipulated, not measurements from Teixeira's paper.
The Parker group's institutional alumni directory records her training period as2001–2005.<Alumni of the Parker Research Group>[Grad Students section, Daniela Teixeira entry]{ref} Her scientific contribution here is the experimental connection among RNA, translation state and the assembly of a visible cytoplasmic structure.