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In prokaryotes, gene activity is controlled foremost at the level of transcription, at its initiation. The structural genes are usually grouped together in operons, which are transcribed from one promoter controlled by a regulatory protein. Regulator gene ==== === prom. Operon promoter operator structural genes mRNA regulatory protein polycistronic mRN Termination: A single gene transcription is terminated out of the protein-coding segment of the gene at the end of the 3 ' untranscribed regions (3 UTR). For th In design, gene transcription is the process by which a piece of information (e.g., it can be the prop erty describing the working state of a product) called DNA is read to produce

(PDF) Transcription and translation - ResearchGat

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TRANSCRIPTIONAL CONTROL OF GENE EXPRESSION IN PROKARYOTES WThe two well studied main mechanisms of transcriptional control of gene expression are: 1. The operons : genes involved in a metabolic pathway are regrouped into a gene cluster controlled by common regulatory sequences and proteins. The expression of these genes ar Transcription initiation by RNA polymerase II in a eucaryotic cell Transcription initiation in vivo requires the presence of transcriptional activator proteins (coded by gene-specific transcription factors). These proteins bind to specific short sequences in DNA. Although only one is shown here, a typical eucaryotic gene

& target genes to be transcribed • -10 and -35 region 5' of transcription start site • Local unwinding of double-stranded DNA • RNA pol recognizes transcription start site • RNA pol adds nucleotides 5' to 3' • RNA pol termination RNA pol and RNA molecule released •Rho-dependent •Rho-independent (hairpin loop; termination sequence initiation of transcription ¥Transcription factors (nonhistone proteins) unwind nucleosomes and dislodge histones at 5Õ end of genes ¥Unwound portion is open to interaction with RNA polymerase which can recognize promotor and initiate gene expressio Operons - sets of related genes transcribed as a unit Regulate each gene individually Each gene is controlled by one or few regulatory proteins Controlled by many (sometimes hundreds) regulatory proteins, which may act over very large distances. RNA polymerase is the only contact area for gene regulatory proteins Mediator, a 24-subunit comple

gene is used to direct protein synthesis and produce the structures of the cell. Genes that code for amino acid sequences are known as 'structural genes'. The process of gene expression involves two main stages: Transcription: the production of messenger RNA (mRNA) by the enzyme RNA polymerase, and the processing of the resulting mRNA molecul Transcription of a gene takes place in three stages: initiation, elongation, and termination. Here, we will briefly see how these steps happen in bacteria. You can learn more about the details of each stage (and about how eukaryotic transcription is different) in the stages of transcription article. Initiation In replication entire DNA molecule is normally copied. In transcription a particular gene or group of genes are copied at any time, & some portions of DNA are never transcribed. Gene is a segment of DNA that codes for a type of Protein or for RNA & may present on any strand of DNA (contain many genes.

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(PDF) Gene Transcription and Translation in Desig

  1. Gene expression consists of Main steps: transcription and translation. In eukaryotic cells, like the one shown here, transcription occurs in the nucleus, and translation occurs in the cytoplasm. Both transcription and translation involve or ribonucleic acid. Like DNA, RNA consists of nucleotide subunits together
  2. g a complex system that guides expression of the genome. Despite keen interest in understanding how TFs control gene expression, it remains challenging to deter
  3. Behavioural and gene transcription alterations induced by spontaneous cannabinoid withdrawal in mice: Gene transcription alterations during cannabinoid withdrawal. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Related Papers

Recruitment of the PIC by gene-specific activators is the most fundamental mechanism through which transcription is induced, but PIC assembly is also influenced profoundly by the positioning or modification of histones, the basic building block of chromatin. The configuration of chromatin at the promoter region is in tur Regulation of Smad-Mediated Gene Transcription by RGS3 Douglas M. Yau, Nan Sethakorn, Sebastien Taurin, Steven Kregel, Nathan Sandbo, Blanca Camoretti-Mercado, Anne I. Sperling, and Nickolai O. Dulin Department of Medicine, the University of Chicago, Chicago, Illinois Abstract Regulator of G protein signaling (RGS) proteins are united into a. Transcription overview. Transcription is the first step of gene expression. During this process, the DNA sequence of a gene is copied into RNA. Before transcription can take place, the DNA double helix must unwind near the gene that is getting transcribed. The region of opened-up DNA is called a transcription bubble These subunits assemble every time a gene is transcribed, and they disassemble once transcription is complete. Each subunit has a unique role; the two α -subunits are necessary to assemble the polymerase on the DNA; the β -subunit binds to the ribonucleoside triphosphate that will become part of the nascent recently born mRNA molecule; and the β ' binds the DNA template strand Transcription. Transcription is the process by which DNA is copied ( transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger RNA is formed, with the involvement of RNA polymerase enzymes

Transcription.pdf - GENE EXPRESSION-TRANSCRIPTION Gene ..

Step 1: Initiation. Initiation is the beginning of transcription. It occurs when the enzyme RNA polymerase binds to a region of a gene called the promoter. This signals the DNA to unwind so the enzyme can ''read'' the bases in one of the DNA strands. The enzyme is now ready to make a strand of mRNA with a complementary sequence of bases DNA transcription is a process that involves transcribing genetic information from DNA to RNA.The transcribed DNA message, or RNA transcript, is used to produce proteins.DNA is housed within the nucleus of our cells.It controls cellular activity by coding for the production of proteins A gene is a database entry with an Ensembl gene ID. a computer scientist A gene is what Wikipedia says it is. a student A gene is a locatable region of genomic sequence, corresponding to a unit of inheritance, which is associated with regulatory regions, transcribed regions and/or other functional sequence regions. Wikipedi A great example of regulation of gene transcription comes from prokaryotes and their regulation of metabolic enzymes to break down sugars (lactose, glucose, etc.) if all enzymes where transcribed it would be too energetically costly Therefore the must control transcription based on the presence of what sugar is present Gene Transcription in Prokaryotes ¥Operons : in prokaryotes, genes that encode protein participating in a common pathway are organized together. ÐThis group of genes, arranged in tandem, is called an OPERON. ¥Genes of an operon are transcribed together into a single mRNA molecule: Ðpolycistronic mRNA. ¥There are two types of bacterial genes

Introduction § Gene regulation primarily operates at the level of transcription - determines which genes will be transcribed into RNA in specific tissues or in response to specific stimuli. Ø Operates at the level of chromatin structure so that the DNA that is to be transcribed moves to a more open chromatin structure allowing access to regulatory molecules & target genes to be transcribed • -10 and -35 region 5' of transcription start site • Local unwinding of double-stranded DNA • RNA pol recognizes transcription start site • RNA pol adds nucleotides 5' to 3' • RNA pol termination RNA pol and RNA molecule released •Rho-dependent •Rho-independent (hairpin loop; termination. Eukaryotic Gene Transcription-Stephen Goodbourn 1996 The field of eukaryotic gene transcription - conversion of genetic information into RNA molecules in the nuclei of cells - is a fast-moving and important area of molecular biology and one which is of broad interest. This book reviews current developments i

Gene Expression Transcription

Regulation of neural gene transcription by optogenetic inhibition of the RE1-silencing transcription factor Francesco Paonessaa,b,1,2, Stefania Criscuoloa,b,1, Silvio Sacchettia, Davide Amorosoa, Helena Scarongellaa, Federico Pecoraro Bisognia,b, Emanuele Carminati a, Giacomo Pruzzo , Luca Maraglianoa, Fabrizia Cescaa,1,3, and Fabio Benfenatia,b,1,3 aCenter for Synaptic Neuroscience, Istituto. families evolved via gene duplication, exon capture, translocation, and mutation. The expression of transcription factor genes in plants is regulated at transcriptional and post-transcriptional levels, while the activity of their protein products is modulated post-translationally. The purpose of this review is to describe the domain structure. Transcription. 1. Dr. N.R.Hazari. 2. Cellular process in which RNA issynthesized using DNA as a templateknown as TRANSCRIPTION. DNA RNA. 3. Polymer of ribonucleotide held together by 3' 5' phosphodiester bridge & are single stranded. Is the only molecule known to function both in the storage & transmission of genetic information & in. This gene encodes a member of the ETS-domain transcription factor family and the ternary complex factor (TCF) subfamily. Proteins in this subfamily regulate transcription when recruited by serum response factor to bind to serum response elements. This protein is activated by signal-induced phosphorylation; studies in rodents suggest that it is a transcriptional inhibitor in the absence of Ras.

A total of 22 conserved motifs (E-value cutoff <1×10 −48), including the bZIP domain, were identified in the SmbZIP proteins, and the multilevel consensus amino acid sequences of the motifs are listed in Supplementary Information Fig. S1.The motif distribution and its correspondence to the phylogenetic tree of the SmbZIP gene family are shown in Figs. 2 A and B. Motif 1 corresponded to the. Transcription factors. The transcription start site of the ENA-78 gene is mapped to a position 96 bp upstream from the translation initiation site. The expression of the ENA-78 gene is induced by TNF-α, IL-1β, or PMA. The 125 bp promoter region contains binding sites for C/EBP and NF-κB. Transfection of 293 cells with promoter deletion. The positive and negative transcriptional regulation of the Drosophila Gapdh-Z gene Xiao-Hong Sun/ John T. Lis, and Ray Wu^ Section of Biochemistry, Molecular and Cell Biology, Cornell University, Ithaca, New York 14853 USA One of the genes encoding glyceraldehyde 3-phosphate dehydrogenase of Drosophila melanogaster, Gapdh-l, i nucleus. The transcription of poxvirus genes follows a temporal profile and is regulated by promoter regions and transcriptional factors. Thus, the genes are classified into early, intermediate, and late, and they are activated in a cascade sequence [16,18,25]. Table 1 52 Eukaryotic Gene Regulation Gene regulation in eukaryotic cells may occur before or during transcription or translation or after protein synthesis. The nucleosome. Digital model of a nucleosome, the fundamental structural unit of chromosomes in the eukaryotic cell nucleus, derived from X-ray crystallography data

A gene is a particular segment of DNA. The sequence of bases in for a gene determines the sequence of nucleotides along an RNA molecule. Only one strand of a DNA double helix is transcribed for each gene. This strand is known as the 'template strand'. The same template strand of DNA is used every time that particular gene is transcribed Homeotic genes are master control genes that regulate organs that develop in specific parts of the body. Homeobox genes share a similar 130-base DNA sequence called homeobox. They code for transcription factors that activate other genes that are important in cell development and differentiation in certain regions of the body

Transcription: an overview of DNA transcription (article

  1. cellulase genes requires the conserved fungal transcription factor XlnR/XYR1(5,7,11).Although xlnR/xyr1homologsareimportant for hemicellulase induction in Fusarium species and in Neurospora crassa, they do not play a significant role in cellulase gene expres-sion (12-14). Other genus-specific transcriptional activators (suc
  2. Transcription and translation are coupled in bacteria. Here, the authors show that the movement of a gene locus to the nucleoid periphery correlates with transcription, and the effect is.
  3. To be expression gene, gene are transcribed into mRNA to protein and the protein become functional. Gene expression occur at any step under the following process[1]. Transcriptional control: some of the factors are regulating the transcription process. Transcription is the first step for gene
  4. gene transcription including75 modification-mediated gene expression and transcription-regulated silencing antagonism. The first module, which is76 described by a generalized Rouse model, behaves 77 on a fast timescale whereas the latter two, which are described by several biochemical reactions, behave on a slow timescale
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  6. chapters offer focused discussion and clear 'voice'The field of eukaryotic gene transcription - conversion of genetic information into RNA molecules in the nuclei of cells - is a fast-moving and important area of molecular biology and one which is Page 2/14

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(PDF) Behavioural and gene transcription alterations

PDF unavailable: 20: Regulation of gene expression by cytokines: PDF unavailable: 21: Regulation of gene expression by steroid hormones: PDF unavailable: 22: Regulation of gene expression by type II nuclear receptors: PDF unavailable: 23: Mechanism of transcriptional activation by nuclear receptors: PDF unavailable: 24: Gene Regulation during. Transcription termination by RNA Polymerase II on a protein-encoding gene.: RNA Polymerase II has no specific signals that terminate its transcription. In the case of protein-encoding genes, a protein complex will bind to two locations on the growing pre-mRNA once the RNA Polymerase has transcribed past the end of the gene

(PDF) Regulation of Smad-Mediated Gene Transcription by

Transcription, the synthesis of RNA from DNA.Genetic information flows from DNA into protein, the substance that gives an organism its form.This flow of information occurs through the sequential processes of transcription (DNA to RNA) and translation (RNA to protein). Transcription occurs when there is a need for a particular gene product at a specific time or in a specific tissue G C A T genes T A C G G C A T Article Molecular Characterization of Choroideremia-Associated Deletions Reveals an Unexpected Regulation of CHM Gene Transcription Tiziana Fioretti 1,†, Valentina Di Iorio 2,†, Barbara Lombardo 1,3, Francesca De Falco 1, Armando Cevenini 1,3

Stages of transcription: initiation, elongation

15.2: Prokaryotic Transcription - Biology LibreText

  1. o acid sequence, which will result in the final protein after further modification)
  2. DNA methylation generally represses transcription, but in some instances, it has also been implicated in transcription activation. Harris et al. identified a protein complex in Arabidopsis that is recruited to chromatin by DNA methylation. This complex specifically activated the transcription of genes that are already mildly transcribed but had no effect on transcriptionally silent genes such.
  3. THE JOURNAL 0 1989 by The American Society for Biochemistry and Molecular Biology, OF BIOLOGICAL CHEMISTRY Inc. VOl. 264, No. 9, Issue of March 25, pp. 5177-5187, 1989 Printed in U.S.A. Transcriptional Regulatory Sequences of the Housekeeping Gene for Human Triosephosphate Isomerase* (Received for publication, October 19,1988
  4. However, up-regulation of the ZmICE1 gene in response to cold stress is less affected. The expression of drought and salt induced genes, ZmDBF1 and rab17, is almost unaffected by TSA treatment. Thus, these observations show that HDACs may selectively activate transcription

transcribed genes, whereas Ty5 elements insert into si-lent chromatin [5, 6]. Thirty-two copies of the Ty1 element, which is the most abundant S. cerevisiae TE, as well as 279 solo LTRs, are present in the genome of the commonly used laboratory strain S288C. Ty1 elements are 5.9 kb i Many components of eukaryotic transcription machinery—such as transcription factors and cofactors including BRD4, subunits of the Mediator complex, and RNA polymerase II—contain intrinsically disordered low-complexity domains. Now a conceptual framework connecting the nature and behavior of their interactions to their functions in transcription regulation is emerging (see the Perspective.

Transcription, Translation and Replicatio

A video by Genome British Columbia demonstrating gene expressionwww.genomicseducation.c Initiation of Eukaryotic Gene Transcription (Worksheet) FILL IN THE BLANKS . 1. The on switch controlling gene expression in eukaryotic cells is chemical modification of and of chromatin. 2. Heterochromatin in transcriptionally (active or inactive) and euchromatin is tanscriptionally (active or inactive). 3 Non-coding regions affect transcription ( first step in gene expression) Promoters are attachment points for RNA polymerase RNA polymerase make mRNA mRNA can be transferred to ribosome for translation . 7.2A1 The promoter as an example of non-coding DNA with a functio the gene's message. TRANSCRIBE As the DNA strand is processed through the RNA polymerase, the RNA polymerase builds a single-strand copy of the gene, called the mRNA transcript. TERMINATE When the RNA polymerase encounters a code signaling the end of the gene, it stops transcription and releases the mRNA transcript. CAPPING and EDITING Before. Transcriptional gene regulation was studied w ith a cDNA microarray. In the exposed and non-exposed hypomethylated daphnids, a large proportion of common genes were simi-Ecotoxicolo UP~ or ^own-regulated, indicating a possible effect o f the DNA hypomethylation. Two of these genes

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Transcription: On the worksheet, make the DNA strand into mRNA codons (review Transcription to Protein Synthesis sheet). 3. Translation: On the worksheet, make the mRNA codons into tRNA codons (review Transcription to Protein Synthesis sheet). 3. Amino Acid Chains: Using the Genetic Code chart, fill in the amino acids for each DNA strand. 4 specific for genes or gene families and, typically, couple transcrip-tion to the physiological needs of the cell. Activators are often latent and become functional in transcription during a physiological response. Particularly well studied in this regard are 'signal trans-ducer and activator of transcription' (STAT) proteins7, whic • A primary transcript is the initial RNA transcript from any gene • The central dogma is the concept that cells are governed by a cellular chain of command: DNA → RNA → protein • Eukaryotic RNA transcripts are modified through RNA processing to yield finished mRNA TRANSCRIPTION TRANSLATION DNA mRNA Ribosome Polypeptide (a) Bacterial cel

Steps of Genetic Transcription Biology for Majors

Transcription - DNA base sequence to mRNA base sequence • The 'code' for the protein is carried by one of the DNA strands in the gene. • An enzyme separates the two DNA strands at the gene locus exposing the gene sequence. • A complementary copy - mRNA - is made of the gene sequence - o new nucleotides form a complementary RNA stran transcription unit and carrying a cargo of progressively growing nRNAs. The above discrepancy can be explained by the different features of the studied genes. Transcription units of lampbrushes exceed gene length, include repetitive sequences that add up to hundreds of kilobases, and measure from several to hundreds of microns (Macgregor, 1993 Moreover, the large number of gene transcripts poses a computational burden, as the number of possible edges in a gene network grows quadratically. Also, a transcriptional time series often has a small number of time points, (PDF) S1 Table. DREAM4 100-gene network inference results, AUPR • Exons are the coding regions of genes (expressing) Exons can be selectively removed to form different proteins from the same gene (this is called alternative splicing) Topic 7.2: TRAnSCRIPTIOn Sections of a Gene A gene is a sequence of DNA which is transcribed into RNA • Most genes encode proteins, but some do not (e.g. tRNA Transcription is the process of making an RNA copy of a gene sequence. This copy, called a messenger RNA (mRNA) molecule, leaves the cell nucleus and enters the cytoplasm, where it directs the synthesis of the protein, which it encodes. Here is a more complete definition of transcription: Transcription

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Transcription is the process of making an RNA copy of a gene sequence. This copy, called a messenger RNA (mRNA) molecule, leaves the cell nucleus and enters the cytoplasm, where it directs the synthesis of the protein, which it encodes Outline the processes of transcription and translation. List the basic components needed to successfully undergo transcription and translation. Understand the purpose of the cell's performing transcription and translation. Predict RNA and protein sequences from a given gene Structure du gène eucaryote Le gène eucaryote est composé de la succession de séquences : Codantes : Exons et Non codantes : Introns - Le gène commence et se termine toujours par un Exon. - Le premier et dernier Exon renferment une séquence non traduite mais transcrite dans l'ARN, ce sont les séquences UTR (untranslated region) qui porte des séquences signa POGIL: Gene Expression - Transcription (for Dr. Smasho's surprise attack) STUDY. Flashcards. Learn. Write. Spell. Test. PLAY. Match. Gravity. Created by. MeganGarbee. UPDATE: You can use your POGIL on the quiz. Key Concepts: Terms in this set (27) Where the DNA is found in the cell. Nucleus cally meaningful groups (such as transcripts that share the same transcription start site (TSS)), Cuffdiff identifies genes that are dif-ferentially regulated at the transcriptional or post-transcriptional level. These results are reported as a set of text files and can be displayed in the plotting environment of your choice

An Introduction to DNA Transcriptio

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Chapter 4 PDF process of transcription - StuDoc

Description. Express yourself through your genes! See if you can generate and collect three types of protein, then move on to explore the factors that affect protein synthesis in a cell. Sample Learning Goals. Explain the main sequence of events that occur within a cell that leads to protein synthesis. Predict how changing the concentrations. However, plants evolved two patterns to prevent these unfavorable effects. The suppressor gene Bnams4 a altered transcription levels of Bnams4 b while BnaC9.Tic40 showed a coevolutionary protein-level epistatic control of Bnams4 b. The neofunctionalization of BnaC9.Tic40 within B. oleracea enabled the new function of restoring fertility (Dun et. Gene expression profiling provides information about the transcriptome of a living cell. The DNA is transcribed into mRNA, when the specific gene is active. This can be influenced by stimuli like chemical compounds, internal signals of the cell or mechanical stress. This Application Note describes the preparation of cell lysates, directly in.

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Transcription factors and their genes in higher plant

gene by two or more transcription factors in an indepen-dent fashion). Interestingly, overexpression of CBF2, HSFC1 and CZF1 induces the gene expression of ZF, ZAT12 and ZAT10, respectively, suggesting that some of these first-wave transcription factors can regulate each other [11]. None of the CBF genes is regulated by th The temporal and spatial patterns of accumulation of transcripts from individual actin genes during Drosophila embryogenesis have been determined by in situ hybridization. We describe the subcloning into transcription vectors of unique DNA fragments derived from the 3′ transcribed, but nontranslated region of each actin gene

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2004 - Gene ResultELK3 ETS transcription factor ELK3

made it possible now to synthesize genes over 1 kb in just a few days, and to synthesize much longer sequences including entire genomes. Gene synthesis can now be easily and cost-effectively outsourced to commercial providers. GenScript, a pioneer in gene synthesis, was founded in 2002 and is the largest gene synthesis supplier in the world. 195 genes and transcripts. this protocol describes all the steps necessary to process a large set of raw sequencing reads and create lists of gene transcripts, expression levels, and differentially expressed genes and transcripts. the protocol's execution time depends on the computing resources, but it typically takes under 45 min of computer time The two main steps in gene expression are transcription and translation. Transcription is the name given to the process in which DNA is copied to make a complementary strand of RNA. RNA then undergoes translation to make proteins. The major steps of transcription are initiation, promoter clearance, elongation, and termination The Treacher Collins syndrome (TCOF1) gene product is involved in ribosomal DNA gene transcription by interacting with upstream binding factor. Proc. Natl Acad. Sci. USA 101 , 10709-10714 (2004 Background. MYB proteins are a large group of transcription factors. The over-expression of MYB genes has been reported to improve abiotic stress tolerance in plant. However, due to the variety of plant species studied and the types of gene donors/recipients, along with different experimental conditions, it is difficult t

Genomic survey of bZIP transcription factor genes related

Post-transcriptional gene silencing (PTGS) in plants is an RNA-degradation mechanism that shows similarities to RNA interference (RNAi) in animals. Indeed, both involve double-stranded RNA (dsRNA), spread within the organism from a localised initiating area, correlate with the accumulation of small interfering RNA (siRNA) and require putative. Many genes, which are transcribed at low rates (e.g. genes encoding the enzymes required for basic metabolic processes required in all cells, often called housekeeping genes) do not contain a TATA box or an initiator. Most genes of this type contain a CG-rich region, or CpG island, of 20-50 nucleotides within ~100 bas

The operator gene is the sequence of non-transcribable DNA that is the repressor binding site. There is also a regulator gene, which codes for the synthesis of a repressor molecule hat binds to the operator. Example of Inducible Transcription: The bacterium E. coli has three genes that encode for enzymes that enable it to split and metabolize. Gene Expression—Transcription 3 Read This! In eukaryotes the enzyme RNA polymerase joins with several transcription factor proteins at the pro-moter, which is a special sequence of base pairs on the DNA template strand that signals the beginning of a gene. The transcription factor proteins, along with the RNA polymerase, is called the. Gene structure is the organisation of specialised sequence elements within a gene. Genes contain the information necessary for living cells to survive and reproduce. In most organisms, genes are made of DNA, where the particular DNA sequence determines the function of the gene. A gene is transcribed (copied) from DNA into RNA, which can either. Transcription factor, molecule that controls the activity of a gene by determining whether the gene's DNA (deoxyribonucleic acid) is transcribed into RNA (ribonucleic acid). The enzyme RNA polymerase catalyzes the chemical reactions that synthesize RNA, using the gene's DNA as a template. Transcription factors control when, where, and how efficiently RNA polymerases function Genes that are transcribed by RNA polymerase III have upstream promoters or promoters that occur within the genes themselves. Eukaryotic transcription is a tightly regulated process that requires a variety of proteins to interact with each other and with the DNA strand. Although the process of transcription in eukaryotes involves a greater.