By contacting the fusion protein with a β 1,4 glycan matrix such as {HEAD ~ cellulose}, the substrate binding region binds to {TAIL ~ the matrix} to immobilize the polypeptide 
By contacting the fusion protein with a β 1,4 glycan matrix such as { HEAD ~ cellulose } , the substrate binding region binds to { TAIL ~ the matrix } to immobilize the polypeptide
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH