Chemical crosslink assay

DZ Danyang Zhang
YZ Yan Zhang
JM Jun Ma
CZ Chunmei Zhu
TN Tongxin Niu
WC Wenbo Chen
XP Xiaoyun Pang
YZ Yujia Zhai
FS Fei Sun
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S-OPA1 and Δ196–252 was diluted to 0.3 mg/ml in 50 mM HEPES (pH 7.4), 300 mM NaCl and 1 mM DTT. The amine-reactive crosslinker bis(sulfosuccinimidyl) suberate (BS3; Thermo Fisher Scientific) was added to a final concentration of 50 μM. After a 15 min incubation at room temperature, the crosslinking reaction was quenched with 50 mM Tris (pH 8.0). Crosslinked products were analyzed using a 3–8% Tris–acetate PAGE.

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