And these are basically the ligosaccharides. And we have many of these oligosaccharides as shown. So what exactly is a function of mucins? Well, because mucins are part of the mucus membrane and the mucus membrane basically acts to lubricate and protect our body from pathogenic agents. What that means is these individual mucins have to be able to carry out that specific function. Now how exactly does it carry out the function of lubrication?