Cleaning composition

A cleaning composition comprising one or more BslA (Biofilm surface layer A) proteins and a surfactant system comprising one or more anionic surfactants and one or more co-surfactants, wherein the weight ratio of the anionic surfactants to the co-surfactants is less than about 9:1, wherein the BslA proteins are a Class III or a Class IV BslA protein, wherein the Class III BslA protein has at least 80% amino acid identity as calculated over the entire length of a sequence aligned against the entire length of a wild-type protein sequence:

• Thermoactinomyces vulgaris BslA (SEQ ID NO:
• 6), and wherein the Class IV BslA protein has at least 80% amino acid identity as calculated over the entire length of a sequence aligned against the entire length of a wild-type protein sequence selected from the group consisting of:
• Bacillus licheniformis BslA (SEQ ID NO:
• 7, SEQ ID NO:
• 8, SEQ ID NO:
• 9, SEQ ID NO:
• 10, and SEQ ID NO:
• 11), B. glycinifermentans BslA (SEQ ID NO:
• 12, SEQ ID NO:
• 13, SEQ ID NO:
• 14, and SEQ ID NO:
• 15), B. sonorensis BslA (SEQ ID NO:
• 16), B. paralicheniformis BslA (SEQ ID NO:
• 17, and SEQ ID NO:
• 18), and Bacillus sp. BslA (SEQ ID NO:
• 19, SEQ ID NO:
• 20, SEQ ID NO:
• 21, and SEQ ID NO:
• 22).