gene deletion

gene de·le·tion

deletion of a segment of a chromosome too small to be detected cytogenetically, inferred from the phenotype at one particular locus.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
By combining genomic gene deletion, exogenous gene insertion, capsid modification, miRNA modification, promoter and strains selection, Creative Biolabs develops Pre-made Oncolytic Herpes Simplex Virus characterized by superior packaging capacity of >30 kb foreign DNA with low toxicity as an expression vector, avoiding evading the host immune response and reduce toxicity by gene knock-out, such as ICP0, ICP4, ICP22, ICP27 or ICP47.
TG6002 is a modified Vaccinia virus, with double gene deletion (TK-RR-), and expressing the proprietary FCU1 gene in the cancer cells it has infected, leading to the local conversion of the non-cytotoxic pro-drug, flucytosine, into 5-FU, a widely used cancer chemotherapy.
The updated recommendation has been expanded to include patients with genetic documentation of 5q SMA homozygous gene deletion, homozygous mutation, or compound heterozygote; are pre-symptomatic with two or three copies of SMN2, or have had disease duration of less than six months, two copies of SMN2, and symptom onset after the first week after birth and on or before seven months of age, or are 12 years of age or younger with symptom onset after six months of age, and never achieved the ability to walk independently; patient is not currently requiring permanent invasive ventilation.
These pseudogenes were involved in carbohydrate transport (ptsA) (14-bp deletion), lipopolysaccharide (LPS) biosynthesis (waal) (16-bp insertion), and protein synthesis (tufB) (790-bp deletion, total gene deletion); we identified no pseudogene among the genes of the flagellar regulon.
The researcher said a larger study to the distribution of Plasmodium falciparum with gene deletion indifferent geopolitical areas is therefore required.
Type 1a IGHD presents as an entire GH-1 gene deletion with undetectable serum GH levels, extremely short stature and possible development of anti-GH antibodies after recombinant human GH administration (3,4).
The majority of DMD cases are caused by gene deletion or duplication in single or multiple exons, which account for about 65% and 5-8%, respectively.[9] The remaining cases are attributable to point mutations, splicing mutation, and small deletions and insertions.[3],[9] Previous reports indicate that approximately 70% of these lethal mutations are inherited from a carrier mother,[2] whereas 30% of the mutation are de novo .[10] To date, no effective therapy is widely available for DMD/BMD patients.
[12,13] Prenatal diagnosis of SMA is critical for couples who are heterozygous for SMN1 gene deletion, although screening must be limited to families who already have children with SMA (or SMA presence in the extended family).
Neeti et al., "Entire prophet of Pit-1 (PROP-1) gene deletion in an Indian girl with combined pituitary hormone deficiencies," Journal of Pediatric Endocrinology and Metabolism, vol.
Also, to investigate alpha triplication ([alpha][alpha][alpha]anti3.7) in cases with [alpha]-globin gene deletion, multiplex PCR method was set up and used (14).