Low membrane transport activity for cystine in resting and mitogenically stimulated human lymphocyte preparations and human T cell clones

Abstract excerpt

In order to determine whether the cysteine requirement of human T lineage cells is met primarily by extracellular cysteine or by cystine, amino-acid-transport activities were measured in resting and mitogenically stimulated human peripheral blood lymphocytes (PBL) and several human T cell clones and T cell tumors. The transport activity of the small neutral amino acids cysteine and alanine (ASC system) and the...

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