Source:http://linkedlifedata.com/resource/umls/id/C1325812
GO: OBSOLETE. A structure formed of the cross-linked polymer peptidoglycan (also called murein) that forms a covalently closed net around a bacterial cell, and imparts structural stability to the bacterial cell wall. [GOC:mah, PMID:9529891],GO: OBSOLETE. A peptidoglycan polymer that forms the shape-determining structure of the cell all of Gram-negative bacteria. [GOC:ma]