A cDNA encoding a pRB-binding protein with properties of the transcription factor E2F.

TY - JOUR

T1 - A cDNA encoding a pRB-binding protein with properties of the transcription factor E2F.

AU - Helin, K

AU - Lees, J A

AU - Vidal, M

AU - Dyson, N

AU - Harlow, E

AU - Fattaey, A

N1 - Keywords: Amino Acid Sequence; Base Sequence; Binding, Competitive; Carrier Proteins; Cell Cycle Proteins; Cloning, Molecular; DNA; DNA-Binding Proteins; E2F Transcription Factors; Molecular Sequence Data; Recombinant Proteins; Retinoblastoma Protein; Transcription Factors; Viral Proteins

PY - 1992

Y1 - 1992

N2 - The retinoblastoma protein (pRB) plays an important role in the control of cell proliferation, apparently by binding to and regulating cellular transcription factors such as E2F. Here we describe the characterization of a cDNA clone that encodes a protein with properties of E2F. This clone, RBP3, was identified by the ability of its gene product to interact with pRB. RBP3 bound to pRB both in vitro and in vivo, and this binding was competed by viral proteins known to disrupt pRB-E2F association. RBP3 bound to E2F recognition sequences in a sequence-specific manner. Furthermore, transient expression of RBP3 caused a 10-fold transactivation of the adenovirus E2 promoter, and this transactivation was dependent on the E2F recognition sequences. These properties suggest that RBP3 encodes E2F, or an E2F-like protein.

AB - The retinoblastoma protein (pRB) plays an important role in the control of cell proliferation, apparently by binding to and regulating cellular transcription factors such as E2F. Here we describe the characterization of a cDNA clone that encodes a protein with properties of E2F. This clone, RBP3, was identified by the ability of its gene product to interact with pRB. RBP3 bound to pRB both in vitro and in vivo, and this binding was competed by viral proteins known to disrupt pRB-E2F association. RBP3 bound to E2F recognition sequences in a sequence-specific manner. Furthermore, transient expression of RBP3 caused a 10-fold transactivation of the adenovirus E2 promoter, and this transactivation was dependent on the E2F recognition sequences. These properties suggest that RBP3 encodes E2F, or an E2F-like protein.

M3 - Journal article

C2 - 1638634

SN - 0092-8674

VL - 70

SP - 337

EP - 350

JO - Cell

JF - Cell

IS - 2

ER -