Antibody	Source, Catalog #	Species	WB dilution	IF dilution
B4GALT1	R&D Systems, AF-3609	Goat	1:500	-
GALNT2	R&D Systems, AF7507	Sheep	1:500	-
GALNT3	R&D Systems, AF7174	Sheep	1:500	-
Giantin	Covance PRB- 114C	Rabbit	-	1:1000
GM130	BD Biosciences, 610823	Mouse	-	1:500
GS15	This lab	Rabbit	1:1000	-
GS15	BD Biosciences, 610961	Mouse	-	1:500
GS28	BD Biosciences, 611184	Mouse	1:500	1:500
LAMP2	DSHB, H4B4	Mouse	1:1000	-
MGAT1	Abcam, ab180578	Rabbit	1:500	-
SDF4	PtnTech, 10517-1-AP	Rabbit	1:1000	-
SNAP29	Synaptic Systems, 111303	Rabbit	1:1000	-
SNAP29	R&D, AF7869	Sheep	1:1000	1:300
SNAP29	Abcam, ab181151	Rabbit	1:1000	1:500
STX5	This lab	Rabbit	1:1000	1:1500
STX5	Santacruz, sc-365124	Mouse	1:500	1:100
TGN46	Bio-Rad, AHP500G	Sheep	1:2000	1:500
TMEM16	Sigma, HPA038299	Rabbit	1:500	-
VAMP7	CST, 14811	Rabbit	1:1000	-
VAMP7	CST, 13876	Rabbit	-	1:300
VT1IB	BD Biosciences, 611404	Mouse	1:250	1:300
YKT6	Santacruz, sc-365732	Mouse	1:300	-
YKT6	Bethyl, A305-479A	Rabbit	1:500	-
YKT6	Bethyl A305-480A	Rabbit	-	1:300
β-actin	Sigma, A5441	Mouse	1:5000	-