Table 1.
Phytochrome-interacting proteins
Interacting partner | Method | Phy A or B? | Pfr or Pr? | Cellular localization | Proposed role in phy signalling | Reference |
---|---|---|---|---|---|---|
ARR4 | Y2H Pull-down Co-IP | B | Both | N, C | Positive regulator of B | Sweere et al. (2001) |
Aux/IAA | Pull-down | A | Both | N | Cross-talk with auxin | Colón-Carmona et al. (2000) |
Cry1 | Y2H Pull-down | A | ? | N | Photoreceptor co-action | Ahmad et al. (1998) |
Cry2 | Co-IP FRET | B | ? | N | Photoreceptor co-action | Màs et al. (2000) |
ELF3 | Y2H Pull-down | B | Both | N | Positive regulator of B in circadian clock | Liu et al. (2001) |
NDPK2 | Y2H Pull-down | A | Pfr>Pr | C, N | Positive regulator of A and B | Choi et al. (1999) |
PIF3 | Y2H Pull-down | B(A) | Pfr | N | Positive regulator of B (and A) | Ni et al. (1999) |
PIF4 | Pull-down | B | Pfr | N | Negative regulator of B | Huq and Quail (2002) |
PKS1 | Y2H Pull-down | A, B | Both | C | Negative regulator of B | Fankhauser et al. (1999) |
ZTL/ADO1 | Y2H | B | ? | N, C | Positive regulator of B and cry1 in circadian clock | Jarillo et al. (2001) |
Abbreviations: Y2H, yeast two-hybrid; Co-IP, co-immunoprecipitation; FRET, fluorescence resonance energy transfer; N, nucleus; C, cytoplasm.