Example sentences for: btb
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Truncation of the BTB domains demonstrated that they were not required for interaction with TOP1.
Both lola and mod(mdg4) encode families of specific RNA polymerase II transcription factors that include a BTB/POZ dimerization domain near each amino terminus [ 50, 51].
The BTB domain is a highly conserved 120 amino acid, hydrophobic-rich, protein-protein interaction domain that mediates homodimerization and heterodimerization of a large number of proteins with diverse functions [ 9 ] . The three dimensional structure of one BTB domain [ 33 ] has been characterized through structure-function studies [ 34 ] . Proteins containing BTB domains are currently categorized into three groups [ 35 ] : 1) DNA-binding proteins often containing zinc fingers in the C-terminal region, 2) actin binding proteins that contain a kelch repeat of ~50 residues that terminate in a pair of glycine residues [ 36 ] and 3) proteins that have neither an actin-binding domain nor a DNA-binding domain.
To construct the expression plasmid encoding C-terminal-myc-tagged truncated BTBD2 having the N-terminal half the BTB domain deleted (m-BTBD2T), the coding region of BTBD2 from the second ATG to almost the end of the 3'-UTR (445-2542 bp) was amplified with primers (Upper primer: 5'-ATGTTCAACGGGGGAATGGCCACAACATC-3', Lower primer: 5'-GGGGAGGACGCAGGTTCCAGGAGT-3') containing BamH I and Hind III cleavage sites and inserted into pCMV-Tag 3 vector (Stratagene) cut with BamH I and Hind III.
The BTBD proteins contain an amino terminal BTB/POZ domain as well as a C-terminal region that is related to proteins that contain the kelch domain.
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