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MARCO is a member of the class A scavenger receptor family and is part of the innate antimicrobial immune system. The protein may bind both Gram negative and Gram positive bacteria via an extracellular, C terminal, scavenger receptor cysteine rich (SRCR) domain. In addition to short cytoplasmic and transmembrane domains, there is an extracellular spacer domain and a long, extracellular collagenous domain. MARCO may form a trimeric molecule by the association of the collagenous domains of three identical polypeptide chains.
![Western Blot MARCO Antibody [Unconjugated]](http://images.novusbio.com/fullsize/antibody/MARCO_AF2956_Western_Blot_17597.jpg)
