Atlas of Genetics and Cytogenetics in Oncology and Haematology


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t(3;11)(p21;q23)

Clinics and Pathology

Disease treatment related acute non lymphoblastic leukemia (t-ANLL)
Phenotype / cell stem origin M5b ANLL
Epidemiology only one case; a female patient aged 23 yrs and treated 9 years ago for T-ALL
Prognosis unknown; likely to be poor, both as it carries a MLL rearrangements and as occurs in t-ANLL

Cytogenetics

Cytogenetics Morphological sole anormaly

Genes involved and Proteins

Gene Name MLL
Location in 11q23
Dna / Rna 13-15 kb mRNA
Protein 431 kDa; contains two DNA binding motifs (a AT hook, and Zinc fingers), a DNA methyl transferase motif, a bromodomain; transcriptional regulatory factor; nuclear localisation
Gene Name AF3p21
Location 3p21

Result of the chromosomal anomaly

Hybrid gene
Description breakpoints of MLL between exons 9 and 10 and upstream of exon 1 of the AF3p21 gene
  
Fusion Protein
Description AT hooks and methyltransferase domains of MLL in the N-term fused to the proline-rich domain and nuclear localization signal of AF3p21
  

External links

Other databaset(3;11)(p21;q23) Mitelman database (CGAP - NCBI)
Other databaset(3;11)(p21;q23) CancerChromosomes (NCBI)

To be noted

Additional cases are needed to delineate the epidemiology of this rare entity:
you are welcome to submit a paper to our new Case Report section.

Bibliography

A novel sh3 protein encoded by the AF3p21 gene is fused to MLL in a therapy-related leukemia with t(3; 11)(p21;q23).
Sano K, Hayakawa A, JinHua P
Blood. 1999 ; 94 (numero Suppl 1).
 

Contributor(s)

Written02-2000Jean-Loup Huret

Citation

This paper should be referenced as such :
Huret JL . t(3;11)(p21;q23). Atlas Genet Cytogenet Oncol Haematol. February 2000 .
URL : http://AtlasGeneticsOncology.org/Genes/t0311ID1165.html

© Atlas of Genetics and Cytogenetics in Oncology and Haematology
indexed on : Mon Aug 11 21:19:59 2008


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