Table 2. Summary of Yeast-two Hybrid Data: Interaction of Profilaggrin N-terminus with Human Annexin II/p36 and Stratifin/14-3-3σ.
Bait Protein (pOBD construct) | Prey Protein (pOAD construct) | Strength of interaction a |
---|---|---|
Annexin II, 1-339 | Human AB | +++ |
Annexin II, 1-339 | Human AB (S100 mutant)b | +/-c |
Annexin II, 1-339 | Human A | ++ |
Annexin II, 1-339 | Mouse AB | ++ |
Annexin II, 1-339 | Mouse A | ++ |
Annexin II, 1-44 | Human AB | ++ |
Annexin II, 1-44 | Mouse A | ++ |
Annexin II, 15-339 | Human AB | - |
Annexin II, 15-339 | Mouse A | - |
Stratifin | Human AB d | ++ |
Stratifin | Human AB (S100 mutant)b | ++ |
Stratifin | Human A | - |
Stratifin | Human B | + |
Stratifin | Mouse AB | ++ |
Stratifin | Mouse A | + |
Stratifin | Mouse B | + |
Stratifin | Stratifin | +/-c |
+++, robust growth on 10 mM 3-AT, ++, weaker growth (and less colonies) on 10 mM 3-AT; +, weak growth on 10 mM 3-AT.
This protein contains mutations in key amino acids involved in calcium binding (see text for details).
Very weak but detectable growth on histidine-deficient media containing 10 mM 3-AT.
Stratifin exhibited a positive interaction with all human profilaggrin constructs containing varying lengths of the B domain, i.e. PF-AB 120, PF-AB 140, PF-AB 160, PF-AB 218, PF-AB 259 and PF-AB 293. Growth was similar (++) for all bait-prey combinations on histidine-deficient media containing 10 mM 3-AT.