A novel translocation, t(9;11)(q33;q23) involving the HRX gene in an acute monocytic leukemia. 1993

M Le Coniat, and S P Romana, and O Bernard, and M A Flexor, and J Hillion, and D Cherif, and R Berger
INSERM U 301, Institut de Génétique Moléculaire, Paris, France.

A t(9;11)(q33;q23) has been detected by chromosome painting with chromosome 11- and chromosome 9-specific probes in blast cells of a child with acute monocytic leukemia. Using a YAC clone spanning the usual breakpoint region of translocations of acute leukemias, it was shown that the breakpoint was effectively within the same region of the band 11q23. This was confirmed by Southern blot studies that showed the localization of the translocation breakpoint between the 6th and 8th exons of the HRX gene. The implication of the HRX gene in t(9;11)(q33;q23) is a novel example of the diversity of translocations involving this gene in hemopoietic disorders. Sequencing DNA in the vicinity of the breakpoints should help to understand the reason of the localization of the recombination hot spot at band 11q23.

UI MeSH Term Description Entries
D007948 Leukemia, Monocytic, Acute An acute myeloid leukemia in which 80% or more of the leukemic cells are of monocytic lineage including monoblasts, promonocytes, and MONOCYTES. Leukemia, Monoblastic, Acute,Leukemia, Myeloid, Acute, M5,Leukemia, Myeloid, Schilling-Type,Monoblastic Leukemia, Acute,Monocytic Leukemia, Acute,Myeloid Leukemia, Acute, M5,Myeloid Leukemia, Schilling-Type,Leukemia, Acute Monocytic,Leukemia, Myeloid, Schilling Type,Acute Monoblastic Leukemia,Acute Monoblastic Leukemias,Acute Monocytic Leukemia,Acute Monocytic Leukemias,Leukemia, Schilling-Type Myeloid,Leukemias, Acute Monoblastic,Leukemias, Acute Monocytic,Monoblastic Leukemias, Acute,Monocytic Leukemias, Acute,Myeloid Leukemia, Schilling Type,Schilling-Type Myeloid Leukemia
D008297 Male Males
D002880 Chromosomes, Human, Pair 11 A specific pair of GROUP C CHROMOSOMES of the human chromosome classification. Chromosome 11
D002899 Chromosomes, Human, Pair 9 A specific pair of GROUP C CHROMSOMES of the human chromosome classification. Chromosome 9
D003582 Cytogenetics A subdiscipline of genetics which deals with the cytological and molecular analysis of the CHROMOSOMES, and location of the GENES on chromosomes, and the movements of chromosomes during the CELL CYCLE. Cytogenetic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014178 Translocation, Genetic A type of chromosome aberration characterized by CHROMOSOME BREAKAGE and transfer of the broken-off portion to another location, often to a different chromosome. Chromosomal Translocation,Translocation, Chromosomal,Chromosomal Translocations,Genetic Translocation,Genetic Translocations,Translocations, Chromosomal,Translocations, Genetic
D015139 Blotting, Southern A method (first developed by E.M. Southern) for detection of DNA that has been electrophoretically separated and immobilized by blotting on nitrocellulose or other type of paper or nylon membrane followed by hybridization with labeled NUCLEIC ACID PROBES. Southern Blotting,Blot, Southern,Southern Blot
D017404 In Situ Hybridization, Fluorescence A type of IN SITU HYBRIDIZATION in which target sequences are stained with fluorescent dye so their location and size can be determined using fluorescence microscopy. This staining is sufficiently distinct that the hybridization signal can be seen both in metaphase spreads and in interphase nuclei. FISH Technique,Fluorescent in Situ Hybridization,Hybridization in Situ, Fluorescence,FISH Technic,Hybridization in Situ, Fluorescent,In Situ Hybridization, Fluorescent,FISH Technics,FISH Techniques,Technic, FISH,Technics, FISH,Technique, FISH,Techniques, FISH

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