Cortical views of VAB-1::GFP expression and RAN-1 staining in dissected and fixed gonads from female (upper panel) and hermaphrodite animals (lower panel); insets in the upper left are magnified views of the indicated regions. Scale bars represent 10 um.
Figure 5. DAB-1 and RAN-1 Bind to the VAB-1 Intracellular Domain.(A) In vitro interaction of GST-DAB-1(53-546) and MBP-VAB-1-ICD. Complexes were isolated with glutathione sepharose. MBP and GST served as negative controls. Western blots were probed with anti-MBP (top panel) and anti-GST (middle and bottom panels). The bottom panel shows the position of GST and breakdown products of GST-DAB-1(53-546).(B) Biochemical purification of VAB-1-ICD-interacting proteins. A flow chart depicts the purification strategy starting with 30 ml of packed adult hermaphrodites. The bottom panel shows the sequence of RAN-1 tryptic peptides that were retained on the MBP-VAB-1-ICD column at high stringency but were absent from the empty column control.(C) In vitro interaction of 6His-SUMO-RAN-1 and MBP-VAB-1-ICD. Complexes were isolated with amylose sepharose. 6His-SUMO and MBP served as negative controls. Western blots were probed with anti-6His (top panel) and anti-MBP (middle and bottom panels). The bottom panel shows the position of MBP and breakdown products of MBP-VAB-1-ICD.(D) Cortical views of VAB-1::GFP expression and RAN-1 staining in dissected and fixed gonads from female (upper panel) and hermaphrodite animals (lower panel); insets in the upper left are magnified views of the indicated regions. Scale bars represent 10 um.
(G and H) MNR-1 was only expressed in the hypodermis (H) and showed no obvious subcellular localization (G). Arrowhead in (H) indicates fluorescent labeling of the hypodermal cells.
Expression pattern of T22A3.3 (H) as determined by promoter-GFP reporter constructs. (H) Expression of T22A3.3 is seen in a set of neurons in the head, including AWB.
(F-H) DAF-16 becomes more cytoplasmic with age, and nuclear localization of PQM-1::GFP decreases significantly with age. Data are represented as mean +/- SEM (G and H).