we have isolated and characterized the genes coding for four bovine cytokeratins of the basic ( type ii ) subfamily , i.e . cytokeratins ib , iii , iv and 6* , by southern blot hybridization , hybridization-selection-translation experiments , hetero-duplex mapping , and partial sequencing of the exons coding for the hypervariable carboxy-terminal 'tail ' regions of the proteins and the 3'-non-translated ends of the mrnas which are distinct for the individual cytokeratin polypeptides .
C1179973
cytokeratins
C0010803
cytokeratin