heparin binding (GO:0008201)

Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.

General

sulfur compound binding (GO:1901681) anion binding (GO:0043168) glycosaminoglycan binding (GO:0005539)

References

gene ontology: GO:0008201