MTAP Negative

**Semantic type:** Laboratory or Test Result

**Definition:** An indication that MTAP expression or activity has not been detected in a sample.

**Synonyms:** - 5'-Methylthioadenosine Phosphorylase Negative - MTA Phosphorylase Negative - MTAP Deficiency - MTAP Deficient - MTAP Loss - MTAP Null - MTAPase Negative - Methylthioadenosine Phosphorylase Loss - Methylthioadenosine Phosphorylase Negative - Methylthioadenosine Phosphorylase Null - S-Methyl-5'-Thioadenosine Phosphorylase Loss - S-Methyl-5'-Thioadenosine Phosphorylase Negative