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  2. HEXA - Wikipedia

    en.wikipedia.org/wiki/HEXA

    HEXA gene is located on the long (q) arm of chromosome 15 at position 24.1.. Hexosaminidase A (alpha polypeptide), also known as HEXA, is an enzyme that in humans is encoded by the HEXA gene, located on the 15th chromosome.

  3. Tay–Sachs disease - Wikipedia

    en.wikipedia.org/wiki/Tay–Sachs_disease

    The HEXA gene is located on the long (q) arm of human chromosome 15, between positions 23 and 24. Tay–Sachs disease is an autosomal recessive genetic disorder, meaning that when both parents are carriers, there is a 25% risk of giving birth to an affected child with each pregnancy.

  4. Chromosome 15 - Wikipedia

    en.wikipedia.org/wiki/Chromosome_15

    Chromosome 15 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 15 spans about 99.7 million base pairs (the building material of DNA) and represents between 3% and 3.5% of the total DNA in cells. Chromosome 15 is an acrocentric chromosome, with a very small short arm (the "p" arm ...

  5. Category:Genes on human chromosome 15 - Wikipedia

    en.wikipedia.org/wiki/Category:Genes_on_human...

    Human chromosome 15 gene stubs (207 P) Pages in category "Genes on human chromosome 15" The following 200 pages are in this category, out of approximately 381 total.

  6. File:Human chromosome 15 ideogram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Human_chromosome_15...

    Numerical raw data of human chromosome 15 (Assembly GRCh38.p3) #Chromosome Arm Band ISCN start ISCN stop ... GATM (gene) GNB5; GPR176; HEXA; Hepatic lipase; IMP3; IQGAP1;

  7. Human genome - Wikipedia

    en.wikipedia.org/wiki/Human_genome

    HEXA gene (on chromosome 15) Canavan disease: 2.5% Eastern European Jewish ancestry ASPA gene (on chromosome 17) Familial dysautonomia: 600 known cases worldwide since discovery IKBKAP gene (on chromosome 9) Fragile X syndrome: 1.4:10000 in males, 0.9:10000 in females FMR1 gene (on X chromosome) Mucolipidosis type IV: 1:90 to 1:100 in Ashkenazi ...

  8. Hexosaminidase - Wikipedia

    en.wikipedia.org/wiki/Hexosaminidase

    The most common mutation, which occurs in over 80 percent of Tay–Sachs patients, results from a four base pair addition (TATC) in exon 11 of the Hex A gene. This insertion leads to an early stop codon, which causes the Hex A deficiency. [12] Children born with Tay–Sachs usually die between two and four years of age from aspiration and ...

  9. Point mutation - Wikipedia

    en.wikipedia.org/wiki/Point_mutation

    This genetic defect is located in the HEXA gene, which is found on chromosome 15. The HEXA gene makes part of an enzyme called beta-hexosaminidase A, which plays a critical role in the nervous system. This enzyme helps break down a fatty substance called GM2 ganglioside in nerve cells. Mutations in the HEXA gene disrupt the activity of beta ...