The team identified the gene affected
by the mutation code for asparagine synthetase, the enzyme responsible for synthesizing the amino acid asparagine.
Not exact matches
It is caused
by mutations on the ABCD1 gene, which
codes for a membrane transporter protein.
We have tested this hypothesis
by estimating genomic point
mutation rates for protein -
coding genes in a range of animal taxa.
Several
mutations were found in genes
coding the machinery that makes mitochondrial proteins, and so would probably hinder mitochondria's ability to make the chemical fuel called ATP, which is used
by normal cells.
Sickle cell disease is a recessive genetic disorder caused
by a single
mutation in both copies of a gene
coding for beta - globin, a protein that forms part of the oxygen - carrying molecule hemoglobin.
The rule is «use it or lose it,» and indeed, unused DNA
code is eroded
by constant
mutation.
Bacteria can become resistant to the antibiotic either as the result of a spontaneous
mutation or
by picking up an appropriate «resistance gene» (which
codes for a protein that confers resistance) from another bacterium via genetic exchange.
The new
mutations were initially identified
by sequencing the exomes (protein -
coding portions of the genome) of three children with achromatopsia who receive their care at NYPH.
Thalassaemia is the world's most common genetic disease and is caused
by mutations in one or both of the genes that
code for haemoglobin.
They hope that
by deciphering the DNA
code found in blood samples, it should be possible to identify the particularly
mutations likely to prove lethal to that patient — and tailor treatment accordingly.
Dr. Chung and her colleagues discovered the new
mutations by sequencing the exomes (the portion of the genome that
codes information to make proteins) of families with PAH without identified
mutations.
As it turns out, the same
mutations could have been found
by sequencing only the protein -
coding regions of the genome — called exome sequencing — for about $ 4000.
• Combining stem cells with gene therapy, an international collaboration announced the success of a pilot study to treat X-linked adrenoleukodystrophy (ALD), a fatal brain disease caused
by a
mutation of the gene
coding for the ALD protein.
With over 20,000 known protein -
coding genes, widespread genetic variation, and the continual accumulation of
mutations in somatic tissues, there are plenty of candidates that will meet these criteria
by chance alone.
«But we are hopeful that our technique,
by treating the human genome like lines of computer
code, could one day be used to reverse these harmful
mutations, and essentially repair the damaged
code.»
ALS can be caused
by a
mutation in a protein called SOD1, and the antisense drug effectively silences the gene that
codes for this mutant protein — found in the cells of patients with inherited forms of ALS.
Derived
by co-transfection of MT4 cells with PHXB2deltapro and PHXB2 proteinase
coding region containing 2
mutations G → V at position 48, L → M at pos
Derived
by co-transfection of MT4 cells with PHXB 2 delta pro and PHXB2 proteinase
coding region containing a single G → V
mutation at position 48.
By sequencing enough fragments (to obtain what genomicists refer to as depth coverage) we can statistically rule out which
mutations are false and what DNA
code is real — this means we sequence enough DNA to have many DNA fragments that align to the same region of the genome.
Not all of these differences affect traits — some
mutations are silent or are not
coded into proteins — these build up over time
by a process called genetic drift, and are not acted on
by evolutionary selection.
CS is caused
by deleterious
mutations in SLC9A6, an X-linked gene that
codes for the endosomal Na + / H + exchanger 6 (NHE6), which is believed to be involved with circuit development [2, 3].
Copy number variation (CNV) is a common chromosomal alteration that can occur during in vitro cultivation of human cells and can be accompanied
by the accumulation of
mutations in
coding region sequences.
«The contribution of de novo
coding mutations to autism spectrum disorder»
by Ivan Iossifov et al appears online in Nature on October 29, 2014.
It is caused
by biallelic loss - of - function
mutations in the gene COL7A1, which
codes for the extracellular protein collagen VII.
Of the 2,477 somatic
coding mutations with good coverage
by both WGS and RNA - seq, 486 (20 %) showed showed allele - specific expression.
A dominant nuclear
mutation in Chlamydomonas identifies a factor controlling chloroplast mRNA stability
by acting on the
coding region of the atpA transcript
By performing a meta - analysis of rare
coding variants in whole - exome sequences from 4,133 schizophrenia cases and 9,274 controls, de novo
mutations in 1,077 family trios, and copy number variants from 6,882 cases and 11,255 controls, we show that individuals with schizophrenia carry a significant burden of rare, damaging variants in 3,488 genes previously identified as having a near - complete depletion of loss - of - function variants.
They did so
by inserting
mutations into the bacterial gene that
codes for the enzyme, then subsequently selecting mutants that were particularly effective at clipping off the antigens.
She says this may be partially accounted for
by the existence of regulatory
mutations that, residing outside of protein -
coding regions, escape detection
by exome sequencing.
Not all of these differences affect traits — some
mutations are silent or are not
coded into proteins — these build up over time
by a process called genetic drift, and are not acted on
by evolutionary selection.
By sequencing enough fragments (to obtain what genomicists refer to as depth coverage) we can statistically rule out which
mutations are false and what DNA
code is real — this means we sequence enough DNA to have many DNA fragments that align to the same region of the genome.