Evidence map›Paper›PMID 1310153›Full record

ArticleMolecular and cellular biology1992

Characterization of a fusion cDNA (RARA/myl) transcribed from the t(15;17) translocation breakpoint in acute promyelocytic leukemia.

K S Chang, S A Stass, D T Chu, L L Deaven, J M Trujillo, E J Freireich

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Article in Molecular and cellular biology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.7field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 80 citations in OpenAlex.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

K S ChangDivision of Laboratory Medicine, University of Texas M. D. Anderson Cancer Center, Houston 77030.
S A Stass
D T Chu
L L Deaven
J M Trujillo
E J Freireich
Leukemia Research Foundation · USLos Alamos National Laboratory · US

Funding

THERAPY AND THE BIOLOGY OF HUMAN LEUKEMIAR35CA039809 · NCI · UNIVERSITY OF TEXAS MD ANDERSON CAN CTR · PI FREIREICH, EMIL J · 1985 to 1991
–
NCI NIH HHS CA 39809-07
6 · The paper itself

Abstract

A nonrandom chromosomal translocation breakpoint, t(15;17)(q22;q21), is found in almost all patients with acute promyelocytic leukemia (APL). Most of these breakpoints occur within the second intron of the retinoic acid receptor-alpha (RARA) gene. We screened a cDNA library of APL and have identified and sequenced a cDNA transcribed from the t(15;17) translocation breakpoint. The 5' end of cDNA p1715 consists of 503 bp of the RARA exon II sequence. A 1.76-kb cDNA without homology to any known gene available in GenBank was found truncated downstream. This cDNA sequence was assigned to chromosome 15 by dot blot hybridization of the flow cytometry-sorted chromosomes. We designate this fusion cDNA RARA/myl, which is different from myl/RARA reported by de The et al. (H. de The, C. Chomienne, M. Lanotte, L. Degos, and A. Dejean, Nature (London) 347:558-561, 1990). This result demonstrates that the two different types of hybrid mRNA can be transcribed from this breakpoint. We screened a non-APL cDNA library and identified a 2.8-kb myl cDNA. This cDNA is able to encode a polypeptide with a molecular weight of 78,450. Alternative splicing of the myl gene which resulted in myl proteins with different C terminals was found. Southern blot analysis of the genomic DNA isolated from 17 APL patients by using the myl DNA probe demonstrated that the myl gene in 12 samples was rearranged. Northern (RNA) blot analysis of RARA gene expression in two APL RNA samples showed abnormal mRNA species of 4.2 and 3.2 kb in one patient and of 4.8 and 3.8 kb in another patient; these were in addition to the normal mRNA species of 3.7 and 2.7-kb. The myl DNA probe detected a 2.6-kb abnormal mRNA in addition to the normal mRNA species of 3.2, 4.2, and 5.5 kb. Using the polymerase chain reaction, we demonstrated that both RARA/myl and myl/RARA were coexpressed in samples from three different APL patients. From this study, we conclude that the t(15;17) translocation breakpoint results in the transcription of two different fusion transcripts which are expected to be translated into fusion proteins.

Indexed as

Chromosomes, Human, Pair 15Chromosomes, Human, Pair 17Amino Acid SequenceBase SequenceBlotting, NorthernBlotting, SouthernCarrier ProteinsExonsHumansLeukemia, Promyelocytic, AcuteMolecular Sequence DataPolymerase Chain ReactionReceptors, Retinoic AcidRestriction MappingTranscription, GeneticTranslocation, GeneticCarrier ProteinsReceptors, Retinoic Acid

Identifiers

PMID1310153
PMCPMC364308
OpenAlexW2163687510

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.