Download Leukaemia Section t(3;5)(q25;q34) Atlas of Genetics and Cytogenetics

Atlas of Genetics and Cytogenetics
in Oncology and Haematology
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Leukaemia Section
Short Communication
t(3;5)(q25;q34)
Jean-Loup Huret
Genetics, Dept Medical Information, University of Poitiers, CHU Poitiers Hospital, F-86021 Poitiers, France
Published in Atlas Database: August 1997
Online version is available at: http://AtlasGeneticsOncology.org/Anomalies/t0305.html
DOI: 10.4267/2042/32030
This work is licensed under a Creative Commons Attribution-Non-commercial-No Derivative Works 2.0 France Licence.
© 1997 Atlas of Genetics and Cytogenetics in Oncology and Haematology
Clinics and pathology
Results of the chromosomal
anomaly
Disease
ANLL; may be preceded by MDS; BC-CML
Phenotype / cell stem origin
M2, M4, M6 (although a rare subtype) ANLL;
trilineage involvement.
Epidemiology
Med. age: 35 yrs; balanced sex ratio.
Prognosis
CR: 8/12, but median survival is less than 1 yr.
Hybrid gene
Description
5' NPM-3' MLF1 on der(5).
Fusion protein
Expression localisation
54 kDa with the 175 N-term amino acids from NPM;
localization: nucleus, mainly in the nucleolus.
To be noted
Cytogenetics
Specific comments: this translocation share some (but
not all) common features with t(1;3)(p36;q21),
inv(3)(q21q26)..., although the genes involved on
chromosome 3 are different.
Cytogenetics, morphological
Location of breakpoints is difficult to ascertain.
Additional anomalies
Most often none; +8.
References
Genes involved and Proteins
De Braekeleer M, Vekemans M. A t(3;5) in blastic phase of a
Philadelphia chromosome-negative chronic myeloid leukemia.
Cancer Genet Cytogenet 1989 Feb; 37(2):163-8. (Review).
Grigg AP, Gascoyne RD, Phillips GL, Horsman DE. Clinical,
haematological and cytogenetic features in 24 patients with
structural rearrangements of the Q arm of chromosome 3. Br J
Haematol 1993; 83:158-65.
Yoneda-Kato N, Look AT, Kirstein MN, Valentine MB,
Raimondi SC, Cohen KJ, Carroll AJ, Morris SW. The
t(3;5)(q25.1;q34) of myelodysplastic syndrome and acute
myeloid leukemia produces a novel fusion gene, NPM-MLF1.
Oncogene 1996; 12:265-275.
MLF1
Location: 3q25
Protein
31 kDa; do not contain known functional motifs;
widely expressed; cytoplasmic localisation.
NPM1
Location: 5q34
Protein
Nuclear localisation; binds to single and double strand
nucleic acids; phosphoprotein that may transport
ribonucleoproteins; may also have a role in DNA
replication.
Atlas Genet Cytogenet Oncol Haematol. 1997; 1(1)
This article should be referenced as such:
Huret JL. t(3;5)(q25;q34). Atlas Genet Cytogenet Oncol
Haematol.1997;1(1):18.
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