The current work shows that changes in the genetic
code of a particular gene can control epigenetic marks at different genes, implying that a gene's genetic code can affect whether other genes are turned on and off, which makes it important to understand the function of all genes involved, not just the one with the so - called misspelling.
Not exact matches
Because the vast majority
of genes are encoded with exactly the same
code, this
particular code is often referred to as the canonical or standard genetic
code, or simply the genetic
code, though in fact there are many variant
codes; thus, the canonical genetic
code is not universal.
Manton also noted Schrödinger's use
of the term
code - script, but she took it to mean «the sum
of hereditary material» rather than a
particular hypothesis about
gene structure and function.
In actual fact, the
gene varies depending on the tissue where it is located (cerebral cortex, cerebellum, olfactory epithelium, etc.); in
particular, what varies is the point in the «string»
of code at which protein synthesis starts.
The researchers have studied analyses
of the genetic material
of viruses found in newly infected people and, in
particular, the
gene env, which
codes for the protein envelope or «coat» around the virus.
In about 70 percent
of the cases, he found a dislocation in a
particular region
of a certain chromosome, but at first he could not find any protein -
coding gene responsible.
So whereas if you find a
particular protein -
coding gene in a human, you're going to find nearly the same
gene in a mouse most
of the time, and that rule just doesn't work for regulatory elements.
«This data allows classification
of all human protein -
coding genes into those
coding for house - hold functions (present in all cells) and those that are tissue - specific
genes with highly specialized expression in
particular organs and tissues, such as kidney, liver, brain, heart, pancreas.
Of particular interest to us are microRNAs: 22 nucleotide RNAs that can regulate the expression of protein - coding gene
Of particular interest to us are microRNAs: 22 nucleotide RNAs that can regulate the expression
of protein - coding gene
of protein -
coding genes.
DNA lives in the cell nucleus and consists
of thousands
of genes, each one holding the
code, or «blueprint,» for building a
particular protein molecule and thus ensuring a certain cell function performed by that protein.
It has recently been determined that some herding breeds
of dogs have a single mutation in a
gene coding for a
particular protein (P - glycoprotein) that will drastically affect the absorption, distribution, metabolism, and excretion
of a variety
of medications used in veterinary medicine.
Within the
gene coding for MAOA, there is a
particular form
of variation (referred to as the MAOA - uVNTR) that is associated with differences in the expression
of the MAOA
gene (Sabol et al., 1998).