Definition of Polysialic acid

1. Noun. (biochemistry) A polymeric form of sialic acid that is involved in cell adhesion ¹

¹ Source: wiktionary.com

Medical Definition of Polysialic acid

1. Potential regulator of cell cell interactions. Polysialic acid chains in glycoproteins, for example when covalently associated with NCAM, have negative regulatory effects on cell cell contact. The low PSA form of NCAM is thought to promote cell cell contact and enhance fasiculation whereas NCAM with a high PSA content is thought to prevent close membrane membrane apposition. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Polysialic Acid

polyseme
polysemes
polysemia
polysemic
polysemies
polysemous
polysemous word
polysemously
polysemousness
polysemy
polysepalous
polyserositis
polysialic
polysialic acid (current term)
polysialic acid O-acetyltransferase
polysialic acid depolymerase
polysilane
polysilanes
polysilicate
polysilicates
polysilicic
polysilicic acid
polysilicon
polysiloxane
polysiloxanes
polysilylated
polysinusitis
polysiphonic

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