answer few question about PAX5 protein

need help answering these question see the attachment file make sure that the answer be only about pax5
What is the dominant biochemical activity or molecular interaction that PAX5 protein is predicted to carry out. Which sites on the PAX5 protein contribute to the process directly?
Which sites contribute indirectly?
How does the biochemical activity or the molecular interactions relate to its biological and physiological function?
What is expected to occur to the organism if the gene that generates the protein is inactivated?