Transcription factors are extraordinarily diverse, but any one factor represents only a tiny fraction of the protein molecules present in the cell. This page describes how one can isolate and purify such rare molecules.
Transcription factors and intracellular receptors General transcription factors
TFIIA, TFIIB, TFIID, TFIIE, TFIIF, TFIIH
Basic-helix-loop-helix ...
Transcription factors are proteins that directly regulate the gene transcription machinery.
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PubMed Google ...
Transcription factors are regulated by signals produced from other molecules. For example, hormones activate transcription factors and thus enable transcription. Hormones therefore activate certain genes.
Posttranscriptional Control ...
The transcription factors that are coded for by segmentation genes regulate yet another family of developmental control genes, the homeotic selector genes. These genes exist in two ordered groups on Drosophila chromosome 3.
Trans-acting transcription factors. Nuclear proteins whose expression is required for hiv viral replication. The tat protein stimulates hiv-ltr-driven rna synthesis for both viral regulatory and viral structural proteins.
The approach, which has been applied to several eukaryotic transcription factors, provides a more reliable predictor of protein-binding sites than methods based on conventional multiple alignments.
In the 20 years since its discovery, research into the NF-kB (nuclear factor-kB) family of transcription factors has revealed an amazing diversity of functions.
Very often, these genes have transcription factors, which are proteins that bind to DNA, near these genes.
(See the Genetics and Development unit.) This cascade includes a membrane receptor for the signal molecule, intermediary proteins that carry the signal through the cytoplasm, and transcription factors in the nucleus that activate the genes for cell ...
Pax genes code for (DNA binding) transcription factors. The paired box refers to a particular conserved DNA sequence that is shared by the different members of the Pax gene family.
Related Terms:
Gene ...
Response elements are binding sites for transcription factors. Certain transcription factors are activated by stimuli such as hormones or heat shock.
Examples include binding sites for transcription factors and splicing machinery.
Related Terms:
Nucleotide ...
A DNA sequence that recognizes certain transcription factors that can stimulate transcription of nearby genes.
entropy
(en-truh-pee) [Gk. en, in + trope, turning]
A quantitative measure of disorder or randomness, symbolized by S.
can require binding of multiple transcription factors to form a transcription complex
C.
have specific DNA sequences such as the "TATA" box that are recognized by proteins ...
promoter - region of gene that binds RNA polymerase and transcription factors to initiate transcription.
pronucleus - haploid, gametic nucleus (from sperm or egg) in a fertilized egg, prior to fusion to form a zygote nucleus ...
Control elements: DNA sequences in genes that interact with regulatory proteins (such as transcription factors) to determine the rate and timing of expression of the genes as well as the beginning and end of the transcript.
A set of four closely linked genes in Drosophila that are important for the formation of the nervous system. They encode transcription factors of the basic helix-loop-helix (bHLH) type.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Nuclear receptor superfamily A class of transcription factors that bind DNA and activate transcription only in the presence of a specific signal molecule, such as a hormone.
Nucleoside A purine or pyrimidine base linked to a sugar.
Promoter The DNA sequences at the 5´ end of a gene which are responsible for binding RNA polymerase and transcription factors and which regulate the gene's expression.
reside and where most of the cellular metabolism occurs. Though mostly water, the cytosol is full of proteins that control cell metabolism including signal transduction pathways, glycolysis, intracellular receptors, and transcription factors.
 See also: Transcription factor, Transcription, Transcript, Trans, Protein
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