 Like the components of other intermediate filaments , the lamin monomer contains an alpha @-@ helical domain used by two monomers to coil around each other , forming a dimer structure called a coiled coil . Two of these dimer structures then join side by side , in an antiparallel arrangement , to form a tetramer called a protofilament . Eight of these protofilaments form a lateral arrangement that is twisted to form a ropelike filament . These filaments can be assembled or disassembled in a dynamic manner , meaning that changes in the length of the filament depend on the competing rates of filament addition and removal . 
 Like the components of other intermediate filaments , the lamin monomer <a href='uninflect' title='1'><mark>contains</mark></a> an alpha @-@ helical domain used by two monomers to coil around each other , forming a dimer structure called a coiled coil . Two of these dimer structures then join side by side , in an antiparallel arrangement , to form a tetramer called a protofilament . Eight of these protofilaments form a lateral arrangement <a href='null_relcl' title='2'><mark>that</mark></a>is twisted to form a ropelike filament . These filaments can be assembled or disassembled in a dynamic manner , meaning that <a href='uninflect' title='3'><mark>changes</mark></a> in the length of the filament depend on the competing rates of filament addition and removal . 
Like the components of other intermediate filaments , the lamin monomer contain an alpha @-@ helical domain used by two monomers to coil around each other , forming a dimer structure called a coiled coil . 2 of dem dimer structures then join side by side , in an antiparallel arrangement , to form a tetramer called a protofilament . Eight of these protofilaments form a lateral arrangement is twisted to form a ropelike filament . These filaments can be assembled or disassembled in a dynamic manner , meaning that change in the length of the filament depend on the competing rates of filament addition and removal .