Title : Glycolipid-anchored acetylcholinesterases from rabbit lymphocytes and erythrocytes differ in their sensitivity to phosphatidylinositol-specific phospholipase C.

Pub. Date : 1992 Nov 23

PMID : 1329966






9 Functional Relationships(s)
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1 Glycolipid-anchored acetylcholinesterases from rabbit lymphocytes and erythrocytes differ in their sensitivity to phosphatidylinositol-specific phospholipase C. The type of membrane association of acetylcholinesterase (AChE, EC 3.1.1.7) was studied in rabbit lymphocytes and erythrocytes. Glycolipids ACE-1 Oryctolagus cuniculus
2 Glycolipid-anchored acetylcholinesterases from rabbit lymphocytes and erythrocytes differ in their sensitivity to phosphatidylinositol-specific phospholipase C. The type of membrane association of acetylcholinesterase (AChE, EC 3.1.1.7) was studied in rabbit lymphocytes and erythrocytes. Glycolipids ACE-1 Oryctolagus cuniculus
3 Glycolipid-anchored acetylcholinesterases from rabbit lymphocytes and erythrocytes differ in their sensitivity to phosphatidylinositol-specific phospholipase C. The type of membrane association of acetylcholinesterase (AChE, EC 3.1.1.7) was studied in rabbit lymphocytes and erythrocytes. Phosphatidylinositols ACE-1 Oryctolagus cuniculus
4 Glycolipid-anchored acetylcholinesterases from rabbit lymphocytes and erythrocytes differ in their sensitivity to phosphatidylinositol-specific phospholipase C. The type of membrane association of acetylcholinesterase (AChE, EC 3.1.1.7) was studied in rabbit lymphocytes and erythrocytes. Phosphatidylinositols ACE-1 Oryctolagus cuniculus
5 In both cases, the unique AChE molecular form was an amphiphilic dimer (referred to as G2a) anchored in the membrane by a glycosylphosphatidylinositol. Glycosylphosphatidylinositols ACE-1 Oryctolagus cuniculus
6 In lymphocytes, G2a AChE was directly converted into its hydrophilic G2h counterpart by a treatment with Bacillus thuringiensis phosphatidylinositol-phospholipase C (PI-PLC, EC 3.1.4.10). g2h ACE-1 Oryctolagus cuniculus
7 In erythrocytes, AChE was resistant to PI-PLC but was rendered sensitive by a prior deacylation with alkaline hydroxylamine. alkaline hydroxylamine ACE-1 Oryctolagus cuniculus
8 This observation suggests that, as previously reported for human erythrocyte AChE, an acylation of the inositol ring in the glycolipid anchor of rabbit erythrocyte AChE (that does not occur in lymphocytes) prevents the cleavage. Inositol ACE-1 Oryctolagus cuniculus
9 This observation suggests that, as previously reported for human erythrocyte AChE, an acylation of the inositol ring in the glycolipid anchor of rabbit erythrocyte AChE (that does not occur in lymphocytes) prevents the cleavage. Glycolipids ACE-1 Oryctolagus cuniculus