a high molecular weight basement membrane heparan sulfate proteoglycan , isolated from murine englebreth-holm-swarm tumor , is seen in platinum replicas as an elongated flexible core ( mr = 450,000 ) consisting of a series of tandem globular domains from which extend , at one end , two to three heparan sulfate chains ( average mr = 80,000 each ) .
C0062503
heparan sulfate proteoglycan
C0019143
heparan sulfate