Stamm 4-7 Flashcards
1
Q
Chromosome territories
A
clusters of heterochromatin or euchromatin
2
Q
Nuclear speckles
A
areas containing splicing factors like SR proteins
3
Q
Nucleolus
A
ribosomal RNA
4
Q
Cajal bodies
A
RNA modification
5
Q
EJC
A
exon junction complex- coordinates binding of nuclear export proteins to the mRNA - cargo proteins that shuttle the mRNA out
6
Q
two types of nuclear export proteins
A
receptors (find the FG repeats of nuclear pore) and adaptors
7
Q
why do mRNAs migrate only out of the nucleus
A
because adaptors are removed by Dbp5 upon leaving the nuclear pore on the cytosolic side
