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Based on a homozygous missense variant p.Pro311Ala found in three siblings of a consanguineous family, mutations in the STYXL1 gene were suggested to cause moderate intellectual disability, epilepsy and complex behavioural abnormalities. We have detected this variant via whole exome sequencing in a homozygous stage in two families. Segregation analyses in our families and thorough validation in international genetic databases provides evidence that this variant is most likely benign. This is important information for genetic counselling. The role of STYXL1 variants in human disease needs to be established.
This article was published in the following journal.
Name: European journal of medical genetics
Since the publication of this article, it has been brought to our attention, that the identified mutation (NM_015277: c.2617 G > A; p.Glu873Lys) is identical with the mutation (NM_001144967: c.2...
Mutations in SLC6A1 have been associated mainly with myoclonic atonic epilepsy (MAE) and intellectual disability. We identified a novel missense mutation in a patient with Lennox-Gastaut syndrome (LGS...
Mitochondrial dynamics such as fission and fusion play a vital role in normal brain development and neuronal activity. encodes a dynamin-related protein 1 (Drp1), which is a GTPase essential for prop...
Retinitis pigmentosa (RP) is the most common form of inherited retinal degenerative diseases. X-linked RP accounts for nearly 15% of all RP cases. In this study, we identified a novel RP2 missense mut...
We report a patient with congenital complex pituitary hormone deficiency (CPHD) with intestinal malrotation and anal atresia. We identified a de novo heterozygous mutation, c.664T > G (p.Cys222Gly...
We plan to carry out a prospective, randomized, open phase III clinical trial which sponsored by the Tianjin Medical University Cancer Hospital and Institute. The primary aim is to evaluat...
Parkinson's disease is a frequent neurodegenerative disorder. Genetic forms of the disease have been recently identified. The monogenic form due to parkin mutation is responsible for many ...
Toll-like receptors (TLRs) play a key role in the innate immune system. Toll-like receptor-4 (TLR4) in particular, appears to play a role in susceptibility to cancer. Of 44 identified SNPs...
The purpose of this study is to determine the safety of giving a normal factor IX gene to treat individuals who have an abnormal or no factor IX gene. Recruitment will be limited to adults...
The objective of this expanded access program is to provide ONC201 on a single patient compassionate use basis to eligible adult subjects with recurrent glioma that exhibits a missense his...
A mutation in which a codon is mutated to one directing the incorporation of a different amino acid. This substitution may result in an inactive or unstable product. (From A Dictionary of Genetics, King & Stansfield, 5th ed)
A condition marked by recurrent seizures that occur during the first 4-6 weeks of life despite an otherwise benign neonatal course. Autosomal dominant familial and sporadic forms have been identified. Seizures generally consist of brief episodes of tonic posturing and other movements, apnea, eye deviations, and blood pressure fluctuations. These tend to remit after the 6th week of life. The risk of developing epilepsy at an older age is moderately increased in the familial form of this disorder. (Neurologia 1996 Feb;11(2):51-5)
Mutation process that restores the wild-type PHENOTYPE in an organism possessing a mutationally altered GENOTYPE. The second "suppressor" mutation may be on a different gene, on the same gene but located at a distance from the site of the primary mutation, or in extrachromosomal genes (EXTRACHROMOSOMAL INHERITANCE).
A type of mutation in which a number of NUCLEOTIDES deleted from or inserted into a protein coding sequence is not divisible by three, thereby causing an alteration in the READING FRAMES of the entire coding sequence downstream of the mutation. These mutations may be induced by certain types of MUTAGENS or may occur spontaneously.
Concept which describes the incremental effects of MUTATION in living organisms.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
Epilepsy is defined as a disorder of brain function characterized by recurrent seizures that have a sudden onset. (Oxford Medical Dictionary). A seizure is caused by a sudden burst of excess electrical activity in the brain, causing a tempora...
DNA sequencing is the process of determining the precise order of nucleotides within a DNA molecule. During DNA sequencing, the bases of a small fragment of DNA are sequentially identified from signals emitted as each fragment is re-synthesized from a ...