protein binding
transcription factor binding
https://github.com/geneontology/go-ontology/issues/19354
TF binding
molecular_function
Binding to a transcription factor, a protein required to initiate or regulate transcription.
GO:0008134
transcription regulator binding
Note that this term should not be used for direct annotation. Please consier one of the more specific descendants, GO:0140297 ; DNA-binding transcription factor binding, GO:0140296 ; general transcription initiation factor binding or GO:0001221 ; transcription coregulator binding.