HBB NM_000518.4:c.20A>T

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A nucleotide substitution at position 20 of the coding sequence of the HBB gene where adenine has been mutated to thymine.

**Synonyms:** - Beta-Globin c.20A>T - HBB c.20A>T - Hemoglobin Beta c.20A>T - NM_000518.4:c.20A>T