A mature B cell that is located in the marginal zone of the spleen with the phenotype CD23-negative and CD21-positive and expressing a B cell receptor usually reactive to bacterial cell wall components or senescent self components such as oxidized-LDL. This cell type is also described as being CD19-positive, B220-positive, IgM-high, AA4-negative, CD35-high. [ https://www.worldcat.org/search?q=bn%3A0781735149 GOC:dsd GOC:add http://www.ncbi.nlm.nih.gov/pubmed/10933592 http://www.ncbi.nlm.nih.gov/pubmed/20933013 http://en.wikipedia.org/wiki/Marginal-zone_B_cell ]

Synonyms: marginal zone of spleen B cell B cell of marginal zone of spleen

This is just here as a test because I lose it