This repeat of unknown function was first identified in Diptera proteins; later on it was found in a wide range of invertebrates and vertebrates [1], such as natterin [2,3]. It is often present in proteins comprising only two or four DM9 repeats and ...
This repeat of unknown function was first identified in Diptera proteins; later on it was found in a wide range of invertebrates and vertebrates [1], such as natterin [2,3]. It is often present in proteins comprising only two or four DM9 repeats and occasionally is linked to other domains at its N- or C-terminal. In the mannose-specific lectin CGL1 from Crassostrea gigas, DM9 exhibits high binding specificity and avidity toward D-mannose residue and served as a pattern recognition receptor (PRR) with a broad range of recognition spectrum to various pathogen-associated molecular patterns [4]. It also mediates immune recognition and cellular encapsulation [5].