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. 2022 Feb 5;41(12):1752–1766. doi: 10.1038/s41388-022-02203-2

Fig. 4. EGLN3 selectively antagonized Erk3 interaction with HSC70 and LAMP2A in a catalytic activity-dependent manner.

Fig. 4

A GST pulldown analysis of the effect of EGLN2, EGLN3, or R205K on the interaction between Erk3 and HSC70 (n = 3). B GST pulldown analysis of the effect of EGLN1, EGLN2, EGLN3, or R205K on the interaction between Erk3 and LAMP2A (n = 3). C GST pulldown analysis of the impact of EGLN3 and R205K on the interaction between Erk3 and LAMP2A (n = 3). D GST pulldown analysis of the impact of EGLN3 activity on the interaction between Erk3 and LAMP2A (n = 4). E, F GST pulldown analysis of the effect of EGLN3 on Erk3(341–721) interaction with LAMP2A (E) and HSC70 (F) (n = 3). G, H IB analysis of the influence of EGLN3 and R205K on Erk3 degradation induced by HSC70 or LAMP2A (n = 3). I IB analysis of the effect of DMOG on Erk3 interaction with HSC70 or LAMP2A (n = 3). J, K GST pulldown analysis of Erk3 or hydroxylation-resistant mutant Erk3(P25A) interaction with LAMP2A (J) and HSC70 (K) (n = 3). L Cycloheximide chase experiment was conducted to measure the stability of Erk3 or its mutant Erk3(P25A) (n = 3). M GST pulldown analysis of Erk3 or hydroxylation-resistant mutant Erk3(P25A) interaction with EGLN3 or R205K (n = 3). N, O IB analysis was done to examine the expression of relative proteins in HEK293T cells transfected the indicated constructs (n = 3). Tub tubulin; HSC70 heat shock cognate protein of 70 kDa; LAMP2A lysosome-associated membrane protein type 2A; PD pull down; GST glutathione S-transferase; IB immunoblotting; DMOG dimethyl oxalyglycine; CHX cycloheximide.