Add file

README.md

@@ -37,6 +37,10 @@ Where:
 - `mutated_sequence`: The full protein sequence with the mutation(s)
 - `fitness_score`: The experimental measurement for the specific property
 
+### `/single_mutant`
+
+Contains filtered mutation data that includes only single-point mutations, maintaining the same directory structure as `/mutant`. Only files with at least 5 single mutations are included.
+
 ### `/model_evaluation`
 
 Contains evaluation metrics for various protein language models on the mutation datasets:
@@ -60,7 +64,7 @@ This dataset can be used for:
 
 ## Citation
 
-If you use the VenusMutHub dataset in your research, please cite the original publications listed in the `doi.csv` file for each specific dataset.
+If you use the VenusMutHub dataset in your research, please cite VenusMutHub directly.
 
 ## License