Beyond the Genetic Code: A Tissue Code?
Biorxiv : the Preprint Server for Biology
|March 22, 2023
Summary
Scientists propose a new "tissue code" that governs how cells organize in tissues. This code, based on five mathematical laws of cell division, explains tissue structure and renewal, with implications for healing and disease.
Area of Science:
- Developmental Biology
- Systems Biology
- Biophysics
Background:
- The genetic code dictates protein sequences, but the mechanisms organizing cells into tissues remain largely unknown.
- Understanding tissue organization is crucial for fields ranging from developmental biology to pathology.
Conclusions:
- The hypothesized "tissue code" provides a novel framework for understanding tissue organization and maintenance.
- These findings have potential applications in understanding wound healing, birth defects, and cancer.
- Further research into the molecular basis of the "tissue code" is warranted.
More Related Videos
Related Concept Videos
03:06From DNA to Protein
18.7K
The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...
18.7K
01:20The Central Dogma
23.1K
The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
23.1K
02:07Organization of Genes
68.9K
Overview
68.9K
01:30General Transcription Factors
5.4K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.4K
02:05DNA as a Genetic Template
22.3K
Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
22.3K
02:16Transcription Factors
76.3K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
76.3K