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MKL1 (megakaryoblastic leukemia (translocation) 1)

Written2001-06Jean-Loup Huret
Genetics, Dept Medical Information, University of Poitiers, CHU Poitiers Hospital, F-86021 Poitiers, France

(Note : for Links provided by Atlas : click)


Other aliasMAL (megakaryocytic acute leukaemia)
LocusID (NCBI) 57591
Atlas_Id 352
Location 22q13.1  [Link to chromosome band 22q13]
Location_base_pair Starts at and ends at bp from pter
Fusion genes
(updated 2017)
Data from Atlas, Mitelman, Cosmic Fusion, Fusion Cancer, TCGA fusion databases with official HUGO symbols (see references in chromosomal bands)
MKL1 (22q13.1) / APOL4 (22q12.3)MKL1 (22q13.1) / ARAP1 (11q13.4)MKL1 (22q13.1) / CD9 (12p13.31)
MKL1 (22q13.1) / MKL1 (22q13.1)MKL1 (22q13.1) / NTNG1 (1p13.3)MKL1 (22q13.1) / PBX1 (1q23.3)
MKL1 (22q13.1) / RBM15 (1p13.3)MKL1 (22q13.1) / SCGB1C1 (11p15.5)MKL1 (22q13.1) / SLC25A17 (22q13.2)
MKL1 (22q13.1) / SPIDR (8q11.21)RBM15 (1p13.3) / MKL1 (22q13.1)STK3 (8q22.2) / MKL1 (22q13.1)
TCF20 (22q13.2) / MKL1 (22q13.1)


Description 15 exons spanning 226 kb, with 3 non coding exons in 5'; 2 putative promoters
Transcription transcription of 4.5 and 4 kb RNA


Description 931 amino acids; contains in the NH2-term a SAF (scaffold attachment factor) box; SAF box bind the DNA minor grove; supposed to attach DNA to nuclear scaffold
Expression wide
Function may have a role in chromatin organization

Implicated in

Entity t(1;22)(p13;q13) / acute megakaryocytic leukaemia (M7 AML) --> OTT -MAL
Disease acute megakaryocytic leukaemia found in infants
Prognosis complete remission in only 50% of cases; median survival: 8 months
Cytogenetics 60% of cases have the t(1;22) as a single anomaly; the remaining cases exhibit complex and hyperploid clones
Hybrid/Mutated Gene 5' OTT - 3' MAL, comprisng most of OTT fused to most of MAL; the reciprocal 5' MAL - 3' OTT may or may not be present
Abnormal Protein includes most of OTT with the RNA recognition motifs and the SPOC domain in N-term, and most of MAL, with the scaffold attachment factor box in C-term
Oncogenesis may play a role in chromatin organization, HOX differentiation pathways, or extracellular signaling


Involvement of a human gene related to the Drosophila spen gene in the recurrent t(1;22) translocation of acute megakaryocytic leukemia.
Mercher T, Coniat MB, Monni R, Mauchauffe M, Nguyen Khac F, Gressin L, Mugneret F, Leblanc T, Dastugue N, Berger R, Bernard OA
Proceedings of the National Academy of Sciences of the United States of America. 2001 ; 98 (10) : 5776-5779.
PMID 11344311


This paper should be referenced as such :
Huret, JL
MKL1 (megakaryoblastic leukemia (translocation) 1)
Atlas Genet Cytogenet Oncol Haematol. 2001;5(3):188-188.
Free journal version : [ pdf ]   [ DOI ]
On line version :

Other Leukemias implicated (Data extracted from papers in the Atlas) [ 2 ]
  Acute megakaryoblastic leukemia (AMegL)::M7 acute myeloid leukemia (M7-AML)

External links

Genomic and cartography
Gene and transcription
RefSeq transcript (Entrez)
RefSeq genomic (Entrez)
SOURCE (Princeton)Expression in : [Datasets]   [Normal Tissue Atlas]  [carcinoma Classsification]  [NCI60]
BioGPS (Tissue expression)57591
Protein : pattern, domain, 3D structure
Domain families : Pfam (Sanger)
Domain families : Pfam (NCBI)
Protein Interaction databases
Ontologies - Pathways
Clinical trials, drugs, therapy
canSAR (ICR) (select the gene name)
Other databaseHUGE
REVIEW articlesautomatic search in PubMed
Last year publicationsautomatic search in PubMed

© Atlas of Genetics and Cytogenetics in Oncology and Haematology
indexed on : Fri Jun 7 18:33:21 CEST 2019

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