We have isolated a cDNA clone encoding a novel helixloophdix (HLH) protein, Id. Id is
missing the basic region adjacent to the HLH domain that is essential for specific DNA …

Publisher Summary This chapter summarizes various approaches to the nuclear genome of
X. laevis and discusses the methods and results that represent selected examples. A …

Publisher Summary This chapter reviews recent knowledge on the cell cycle regulation of c-
Myc expression and c-Myc activity, as well as the structural features of the c-Myc protein that …

The neural crest, a population of multipotent progenitor cells, is a defining feature of
vertebrate embryos. Neural crest precursor cells arise at the neural plate border in response …

A growing number of substances released into the environment disrupt normal endocrine
mechanisms in a wide range of vertebrates. Little is known about the effects and identities of …

Xenopus early development is characterized by a generalized absence of transcription,
which resumes at the midblastula transition (MBT). We analyzed this regulation using a …

We describe the cloning and characterization of two cDNAs from Xenopus laevis that
encode sequence-specific DNA binding proteins called FRG Y1 and FRG Y2 (frog Y-box …

ABSTRACT PISTILLATA is a B-class floral organ identity gene required for the normal
development of petals and stamens in Arabidopsis. PISTILLATA expression is induced in …

To study the regulation of AUUUA-mediated RNA deadenylation and destabilization during
Xenopus early development, we microinjected chimeric mRNAs containing Xenopus or …

Biochemical and biological activities of Myc oncoproteins are highly dependent upon their
association with another basic region helix–loop–helix/leucine zipper (bHLH/LZ) protein …