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. 2002 Nov;3(11):1042–1048. doi: 10.1093/embo-reports/kvf222

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.

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