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. 2024 May 7;15:3802. doi: 10.1038/s41467-024-48151-1

Table 1.

Comparison of the affinity measurements between NCOA4 and FTH1-WT and its mutants obtained by ITC, immunoprecipitation and colocalization assays

Mutant Thermodynamic parameters from ITC Relative interaction by immunoprecipitation Cells with colocalized mRuby3-FTH1/FTL:mGFP-NCOA4 puncta
ΔG (kJ/mol) ΔH (kJ/mol) ΔS J/(K*mol) Kd (µM) n % p value* % p value*
FTH1-WT −32.2 ± 1.1 −23.0 ± 1.8 30.9 ± 8.2 2.4 ± 1.1 2.5 ± 0.6 100 n.a. 100 n.a.
FTH1-A19Y 8.86 <0.0001 0 <0.0001
FTH1-N22A No Binding 3.72 <0.0001 0.89 <0.0001
FTH1-R23A No Binding 5.35 <0.0001 7.04 <0.0001
FTH1-R23I 13.0 <0.0001 23.7 <0.0001
FTH1-R23L No Binding 86.0 0.4614 33.7 0.0005
FTH1-S114D - 31.2 ± 0.3 - 19.5 ± 2.1 39.1 ± 5.9 3.5 ± 0.5 3.0 ± 0.1 111 0.6897 23.9 <0.0001
FTH1-S114E No Binding 113 0.5198 24.9 <0.0001
FTL-WT 14.0 <0.0001 0 <0.0001
L2H −30.1 ± 0.3 −22.0 ± 0.4 26.9 ± 2.4 5.6 ± 0.7 1.9 ± 0.1 147 <0.0001 15.5 <0.0001

*Dunnett’s multiple comparison.

Source data are provided as a Source Data file.