Structural Genes
Structural Genes - Related Videos
01:30
Structure of a Gene
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2025
A gene is the fundamental unit of heredity. Every individual has two copies of each gene, one inherited from each parent. Although most people contain the same genes, there is a small fraction that is slightly different amongst people. A gene with a small difference in its sequence of DNA bases forms different alleles, contributing to different phenotypes. However, only 1% of the DNA is composed of genes that encode proteins; the rest, 99% is non-coding DNA. This non-coding DNA performs...
01:28
Prokaryotic Gene Structure and Organization
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2025
Prokaryotic genomes exhibit a streamlined organization of coding and non-coding regions essential for gene expression and protein synthesis. While coding regions contain the genetic instructions for proteins or functional RNAs, non-coding regions regulate the precise transcription and translation of these genes.Coding Regions: Proteins and RNAsThe primary coding regions, known as structural genes, include sequences transcribed into messenger RNA (mRNA) and ultimately translated into...
22:10
Multi-target Parallel Processing Approach for Gene-to-structure Determination of the Influenza Polymerase PB2 Subunit
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Cited by 3 •
2013
Structure-based drug design plays an important role in drug development. Pursuing multiple targets in parallel greatly increases the chance of success for lead discovery. The following article highlights how the Seattle Structural Genomics Center for Infectious Disease utilizes a multi-target approach for gene-to-structure determination of the PB2 influenza A subunit.
01:42
What is Gene Expression?
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2019
Overview Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors. Genetic Information Flows from DNA to RNA to Protein A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
02:08
Gene Conversion
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2020
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
FAQs
Activation begins when regulatory elements permit a structural gene to be transcribed. For protein-coding genes, the resulting messenger RNA carries the sequence information to ribosomes, which translate it into a protein. That protein may function as an enzyme, receptor, or cytoskeletal component, linking gene activity to specific cellular structures and processes.
Protein-coding structural genes transmit information through messenger RNA before ribosomes produce a protein. Other structural genes generate functional noncoding RNA instead, so their products do not serve as templates for translation. This distinction expands the ways gene expression can contribute to cell operation beyond the production of enzymes, receptors, and other proteins.
The timing and location of structural gene activity influence which molecular components a cell contains. Different expression patterns can therefore affect cell structure, metabolism, development, and responses to environmental signals. Examining these patterns helps connect changes in gene activity with differences among cells and with broader biological outcomes.
Researchers examine structural genes alongside their expression patterns, regulatory control, and resulting cellular products. Interpreting mutations can reveal how altered gene sequences affect proteins or functional RNA, while pathway mapping connects those changes to downstream biological processes. This approach helps organize relationships between genes, cellular functions, and observable biological conditions.
Analysis can show how mutations or altered production of gene products disrupt normal cellular activity. Because structural genes supply components involved in cell operation, changes in their expression or sequence may help explain disease-associated effects. In inherited disorders and cancer, these findings support investigation of how abnormal molecular components contribute to the condition.
Studying regulation clarifies when structural genes become active and how their products are supplied to cells. This context prevents researchers from treating gene sequence alone as a complete explanation of function. Linking regulatory activity with expression patterns and cellular outcomes can reveal how environmental signals, development, or disease alter the molecular components present in a cell.