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Regulation of Gene Expression

2014· reference-entry· en· W1504649455 on OpenAlexaff
Anil Kumar, Sarika Garg, Neha Garg

Bibliographic record

VenueEncyclopedia of Molecular Cell Biology and Molecular Medicine · 2014
Typereference-entry
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicEpigenetics and DNA Methylation
Canadian institutionsUniversity of Saskatchewan
Fundersnot available
KeywordsBiologyGene expressionGeneRegulation of gene expressionGeneticsExpression (computer science)Computational biologyCell biology

Abstract

fetched live from OpenAlex

Gene expression can be regulated at the stage of transcription, RNA processing (post- transcriptional changes), and translation. In prokaryotes, the on–off of transcription serves as the main regulatory control of the gene expression whereas, in eukaryotes, more complex regulatory mechanism of transcription takes place. In addition, RNA splicing also plays a major role in the regulation of gene expression. The primary transcript of DNA has complementary sequences of both exons and introns, and is termed heterogeneous RNA (HnRNA). The HnRNA is spliced by the removal of introns and the ligation of exons. The regulation of gene expression in both prokaryotes and eukaryotes is important, as it determines whether a particular protein should be synthesized, and in what quantity. The cells of a multicellular organism are genetically homogeneous, but structurally and functionally heterogeneous, owing to the differential expression of genes. Many of these differences in gene expression arise during development, and are subsequently retained through mitosis. Stable alterations of this type are termed epigenetic. These alterations are heritable in the short term, but do not involve mutations of the DNA itself. The main molecular mechanisms that mediate epigenetic phenomena are DNA methylation and histone modification(s). Keywords: Alternate splicing; Alzheimer's disease; Attenuation; Bromodomain; CAAT box; Chromodomain; Coffin–Lowry syndrome; Cyclic AMP receptor protein (CRP or CAP); Epigenetics; Epigenotype; Epigenetic regulation; Exon; Gratuitous inducer; Intron or intervening sequence; Inducer; Induction; Lariat; Leader sequence; Myoblast; Operator; Polyadenylation; Polycistronic mRNA; Promoter; Regulatory gene; Repression; Rett syndrome; Riboswitch; Ribozyme; RITS (RNA-induced transcriptional silencing); SnRNAs (small nuclear RNAs); SnRNPs; Splicing; TATA box; Telomerase; Telomere; Totipotent; Tropomyosin; Upstream

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.448
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.250
Teacher spread0.243 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations18
Published2014
Admission routes1
Has abstractyes

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