People who carry a "G" instead of an "A" at a specific spot in the sequence of their genetic code have roughly a six-fold higher risk of developing certain types of brain tumors, according to a study by researchers at the ...
Aug 26, 2012
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Although genes are distributed widely across chromosomes, many genes related to the immune system are clustered together on human chromosome 6 in a segment called the major histocompatibility complex (MHC) region. The density ...
Jan 29, 2019
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Scientists at Cold Spring Harbor Laboratory (CSHL) and Memorial Sloan-Kettering Cancer Center have amassed strong experimental evidence implying that commonly occurring large chromosomal deletions that are seen in many cancer ...
May 7, 2012
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(Medical Xpress)—Patients who have inherited a specific common genetic variant develop bladder cancer tumors that strongly express a protein known as prostate stem cell antigen (PSCA), which is also expressed in many pancreatic ...
Dec 27, 2012
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Researchers studying rare genetic disorders have uncovered insights into those diseases in biological structures that regulate chromosomes when cells divide. Focusing on the cohesin complex, a group of proteins forming a ...
May 29, 2012
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Chromosome 8 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 8 spans about 145 million base pairs (the building material of DNA) and represents between 4.5 and 5.0% of the total DNA in cells.
The chromosome has two arms, 8p and 8q. The short arm, 8p, has about 45 million base pairs, about 1.5% of the genome, and includes 484 genes and 110 pseudogenes; about 8% of its genes are involved in brain development and function, and about 16% are involved in cancer. A unique feature of 8p is a big region of about 15 megabases that appears to have a high mutation rate, and which shows an immense divergence between human and chimpanzee, suggesting that its high mutation rates have contributed to the evolution of the human brain.
Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 8 is likely to contain between 700 and 1,000 genes.
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