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Yeast nucleotide excision repair proteins Rad2 and Rad4 interact with RNA polymerase II basal transcription factor b (TFIIH). 1994

A J Bardwell, and L Bardwell, and N Iyer, and J Q Svejstrup, and W J Feaver, and R D Kornberg, and E C Friedberg
Department of Pathology, University of Texas Southwestern Medical Center, Dallas 75235.

The Rad2, Rad3, Rad4, and Ss12 proteins are required for nucleotide excision repair in yeast cells and are homologs of four human proteins which are involved in a group of hereditary repair-defective diseases. We have previously shown that Rad3 protein is one of the five subunits of purified RNA polymerase II basal transcription initiation factor b (TFIIH) and that Ss12 protein physically associates with factor b (W.J. Feaver, J.Q. Svejstrup, L. Bardwell, A.J. Bardwell, S. Buratowski, K.D. Gulyas, T.F. Donahue, E.C. Friedberg, and R.D. Kornberg, Cell 75:1379-1387, 1993). Here we show that the Rad2 and Rad4 proteins interact with purified factor b in vitro. Rad2 (a single-stranded DNA endonuclease) specifically interacts with the Tfb1 subunit of factor b, and we have mapped a limited region of the Rad2 polypeptide which is sufficient for this interaction. Rad2 also interacts directly with Ss12 protein (a putative DNA helicase). The binding of Rad2 and Rad4 proteins to factor b may define intermediates in the assembly of the nucleotide excision repair repairosome. Furthermore, the loading of factor b (or such intermediates) onto promoters during transcription initiation provides a mechanism for the preferential targeting of repair proteins to actively transcribing genes.

UI MeSH Term Description Entries
D008961 Models, Structural A representation, generally small in scale, to show the structure, construction, or appearance of something. (From Random House Unabridged Dictionary, 2d ed) Model, Structural,Structural Model,Structural Models
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009838 Oligodeoxyribonucleotides A group of deoxyribonucleotides (up to 12) in which the phosphate residues of each deoxyribonucleotide act as bridges in forming diester linkages between the deoxyribose moieties. Oligodeoxynucleotide,Oligodeoxyribonucleotide,Oligodeoxynucleotides
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D011503 Transglutaminases Transglutaminases catalyze cross-linking of proteins at a GLUTAMINE in one chain with LYSINE in another chain. They include keratinocyte transglutaminase (TGM1 or TGK), tissue transglutaminase (TGM2 or TGC), plasma transglutaminase involved with coagulation (FACTOR XIII and FACTOR XIIIa), hair follicle transglutaminase, and prostate transglutaminase. Although structures differ, they share an active site (YGQCW) and strict CALCIUM dependence. Glutaminyl-Peptide Gamma-Glutamyltransferases,Protein-Glutamine gamma-Glutamyltransferases,Transglutaminase,Gamma-Glutamyltransferases, Glutaminyl-Peptide,Glutaminyl Peptide Gamma Glutamyltransferases,Protein Glutamine gamma Glutamyltransferases,gamma-Glutamyltransferases, Protein-Glutamine
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D004260 DNA Repair The removal of DNA LESIONS and/or restoration of intact DNA strands without BASE PAIR MISMATCHES, intrastrand or interstrand crosslinks, or discontinuities in the DNA sugar-phosphate backbones. DNA Damage Response
D004268 DNA-Binding Proteins Proteins which bind to DNA. The family includes proteins which bind to both double- and single-stranded DNA and also includes specific DNA binding proteins in serum which can be used as markers for malignant diseases. DNA Helix Destabilizing Proteins,DNA-Binding Protein,Single-Stranded DNA Binding Proteins,DNA Binding Protein,DNA Single-Stranded Binding Protein,SS DNA BP,Single-Stranded DNA-Binding Protein,Binding Protein, DNA,DNA Binding Proteins,DNA Single Stranded Binding Protein,DNA-Binding Protein, Single-Stranded,Protein, DNA-Binding,Single Stranded DNA Binding Protein,Single Stranded DNA Binding Proteins
D004706 Endodeoxyribonucleases A group of enzymes catalyzing the endonucleolytic cleavage of DNA. They include members of EC 3.1.21.-, EC 3.1.22.-, EC 3.1.23.- (DNA RESTRICTION ENZYMES), EC 3.1.24.- (DNA RESTRICTION ENZYMES), and EC 3.1.25.-.

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