Which bacterial antigen is responsible for Attachment & interferes with hostimmune response leading to heart valve damage?⬆️

Young female with Atrial Septal Defect(ASD) diagnosed with Bacterial endocardititis a week after wisdom tooth extraction

An old man with a history of benign prostatic hypertrophy and a urinary Catheter. after2 sets of positive blood cultures. Biochemical tests revealed catalase (-ve),hydrolyse Esculin. bile and Vancomycin resistance.