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In genetics, chromosome translocation is a phenomenon that results in unusual rearrangement of chromosomes. This includes balanced and unbalanced translocation, with two main types: reciprocal, and Robertsonian translocation. Reciprocal translocation is a chromosome abnormality caused by exchange of parts between non-homologous chromosomes. Two ...
CML was the first cancer to be linked to a clear genetic abnormality, the chromosomal translocation known as the Philadelphia chromosome. This chromosomal abnormality is so named because it was first discovered and described in 1960 by two scientists from Philadelphia, Pennsylvania , US: Peter Nowell of the University of Pennsylvania and David ...
The Philadelphia chromosome or Philadelphia translocation (Ph) is a specific genetic abnormality in chromosome 22 of leukemia cancer cells (particularly chronic myeloid leukemia (CML) cells). This chromosome is defective and unusually short because of reciprocal translocation , t(9;22)(q34;q11), of genetic material between chromosome 9 and ...
Acute promyelocytic leukemia is characterized by a chromosomal translocation involving the retinoic acid receptor alpha (RARA) gene on chromosome 17. [3] In 95% of cases of APL, the RARA gene on chromosome 17 is involved in a reciprocal translocation with the promyelocytic leukemia gene (PML) on chromosome 15, a translocation denoted as t(15;17)(q22;q21). [3]
This involves the myc oncogene being translocated from chromosome 8 to the Ig kappa locus on chromosome 2. This type of translocation is seen in 15% of cases of Burkitt lymphoma. A rare variant is t(8;22)(q24;q11). [14] This type involves myc oncogene translocation from chromosome 8 to the Ig lambda locus on chromosome 22. This type of ...
t(11;14) is a chromosomal translocation which essentially always involves the immunoglobulin heavy locus, also known as IGH in the q32 region of chromosome 14, as well as cyclin D1 which is located in the q13 of chromosome 11 . [2] Specifically, the translocation is at t(11;14)(q13;q32). [3] [4]
“There are more than 200 types of cancer, with lots of possible symptoms,” says Dr Julie Sharp, head of health and patient information at CRUK. “It’s impossible to know them all, which is ...
This subtype is characterized by a translocation of a part of chromosome 8 to chromosome 21, written as t(8;21). [2] On both sides of the splice the DNA coded for different proteins, RUNX1 and ETO, These two sequences are then transcribed and translated into a single large protein, "M2 AML" which allows the cell to divide unchecked, leading to cancer.