GO:0016021	C	0.99	integral component of membrane
GO:0044464	C	0.76	cell part
GO:0016020	C	0.56	membrane
GO:0005886	C	0.54	plasma membrane
GO:0005576	C	0.17	extracellular region
GO:0044424	C	0.11	intracellular part
GO:0043226	C	0.11	organelle
