for instance , the beta-tubulin form defined by the monoclonal antibody 1b41 is sequestered into a part of the subpellicular cytoskeleton limited to the flagellar adhesion zone , which might correspond to the group of 4 microtubules associated with a cisterna of the endoplasmic reticulum , forming the so-called `` '' subpellicular microtubule quartet '' '' ( sfmq ) .
C0005290
beta-tubulin
C0026046
microtubules