These proteins given per organism are involved in a DNA repair process;
double-strand break repair via nonhomologous end-joining (part of non-recombinational repair)( GO:0006303 ):

Drosophila melanogaster( 1 entries )

Homo sapiens( 2 entries )

KU70_HUMAN
KU86_HUMAN

Mus musculus( 2 entries )

KU70_MOUSE
KU86_MOUSE

Saccharomyces cerevisiae( 19 entries )

DNL4_YEAST
DOA1_YEAST
DPO4_YEAST
KU70_YEAST
KU80_YEAST
LIF1_YEAST
MCK1_YEAST
RPD3_YEAST
RSC1_YEAST
RSC2_YEAST
RSC8_YEAST
SIN3_YEAST
SIR2_YEAST
SIR3_YEAST
SIR4_YEAST
SRS2_YEAST
XRS2_YEAST
YHO1_YEAST
YNN3_YEAST

Schizosaccharomyces pombe( 1 entries )