t2 , a somatic cell hybrid of human b- and t-lymphoblastoid cell lines ( b-lcl and t-lcl , respectively ) , synthesized hla-a2 and hla-b5 glycoproteins , but expresses only low levels of a2 and undetectable levels of b5 at the cell surface .
C0019733
hla-a2
C0017968
glycoproteins