Table 1.

Primary antibody information

Antibody	Provider	Catalog no.	Dilutions used in immunoblotting (IB) or immunofluorescence labeling (IF)
M-opsin	MilliporeSigma	AB5405	1:200 (IF)
S-opsin	Dr. Muna Naash from the University of Houston		1:200 (IF)
PDE6C	Abgent	ap9728c	1:200 (IF)
Biotinylated PNA	Vector Laboratories	B-1075	1:200 (IF)
GFAP	DAKO	Z0334	1:500 (IF)
Phospho-eIF2α	Cell Signaling Technology, Beverly, MA	3398	1:500 (IB)
Phospho-IRE1a	Abcam, Inc., Cambridge, MA	ab-48187	1:500 (IB)
β-actin	Abcam, Inc., Cambridge, MA	ab-6276	1:2000 (IB)