Summary of Activating Mutations in βc
| Mutant . | Receptor/Domain Affected . | Comment . | Reference . |
|---|---|---|---|
| V449E | hβc Transmembrane domain | Likely to mediate homodimerization | 89 |
| FIΔ | hβc Extracellular domain 4 | 37 aa duplication | 88, 89 |
| HSV | hβc Extracellular domain 4 | Insertion of 11 amino acids | Jones et al (manuscript submitted) |
| Truncation mutants ΔQP, ΔH | hβc Extracellular domain 4 | Truncations removing domains 1, 2, and 3 | 91 |
| I374N, also I374D, I374Q, I374F | hβc Extracellular domain 4 | Point mutation in strand C′ | 89, 90 |
| W358N, L356N | hβc Extracellular domain 4 | Point mutations in strand B′ | 90 |
| Rearranged mβc gene | mβc Extracellular domain | May induce disulfide-linked dimerization | 92 |
| Mutant . | Receptor/Domain Affected . | Comment . | Reference . |
|---|---|---|---|
| V449E | hβc Transmembrane domain | Likely to mediate homodimerization | 89 |
| FIΔ | hβc Extracellular domain 4 | 37 aa duplication | 88, 89 |
| HSV | hβc Extracellular domain 4 | Insertion of 11 amino acids | Jones et al (manuscript submitted) |
| Truncation mutants ΔQP, ΔH | hβc Extracellular domain 4 | Truncations removing domains 1, 2, and 3 | 91 |
| I374N, also I374D, I374Q, I374F | hβc Extracellular domain 4 | Point mutation in strand C′ | 89, 90 |
| W358N, L356N | hβc Extracellular domain 4 | Point mutations in strand B′ | 90 |
| Rearranged mβc gene | mβc Extracellular domain | May induce disulfide-linked dimerization | 92 |