In S. epidermidis, lipase (lipA) is important for the persistence of bacteria.Autolysin (atlE) hydrolyzes the cell wall and is important for the adherence between S. epidermidis and polymer.

• 自溶酶参与生物膜形成，能够降解细胞壁的肽聚糖成分，并且通过非共价结合参与表皮葡萄球菌和多聚材料的粘附，从而形成生物膜；