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Zhang T, Xiong H, Kan LX, et al. Genomic sequence, structural organization, molecular evolution, and aberrant rearrangement of promyelocytic leukemia zinc finger gene. Proc Natl Acad Sci U S A. 1999;96(20):11422-7doi: 10.1073/pnas.96.20.11422.
Zhang, T., Xiong, H., Kan, L. X., Zhang, C. K., Jiao, X. F., Fu, G., Zhang, Q. H., Lu, L., Tong, J. H., Gu, B. W., Yu, M., Liu, J. X., Licht, J., Waxman, S., Zelent, A., Chen, E., & Chen, S. J. (1999). Genomic sequence, structural organization, molecular evolution, and aberrant rearrangement of promyelocytic leukemia zinc finger gene. Proceedings of the National Academy of Sciences of the United States of America, 96(20), 11422-7. https://doi.org/10.1073/pnas.96.20.11422
Zhang, T, et al. "Genomic sequence, structural organization, molecular evolution, and aberrant rearrangement of promyelocytic leukemia zinc finger gene." Proceedings of the National Academy of Sciences of the United States of America vol. 96,20 (1999): 11422-7. doi: https://doi.org/10.1073/pnas.96.20.11422
Zhang T, Xiong H, Kan LX, Zhang CK, Jiao XF, Fu G, Zhang QH, Lu L, Tong JH, Gu BW, Yu M, Liu JX, Licht J, Waxman S, Zelent A, Chen E, Chen SJ. Genomic sequence, structural organization, molecular evolution, and aberrant rearrangement of promyelocytic leukemia zinc finger gene. Proc Natl Acad Sci U S A. 1999 Sep 28;96(20):11422-7. doi: 10.1073/pnas.96.20.11422. PMID: 10500192; PMCID: PMC18049.
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Proc Natl Acad Sci U S A. 1999 Sep 28;96(20):11422-7. doi: 10.1073/pnas.96.20.11422.

Genomic sequence, structural organization, molecular evolution, and aberrant rearrangement of promyelocytic leukemia zinc finger gene.

Proceedings of the National Academy of Sciences of the United States of America

T Zhang, H Xiong, L X Kan, C K Zhang, X F Jiao, G Fu, Q H Zhang, L Lu, J H Tong, B W Gu, M Yu, J X Liu, J Licht, S Waxman, A Zelent, E Chen, S J Chen

Affiliations

  1. Key Laboratory of Human Genome Research, Ministry of Public Health, Ruijin Hospital, Shanghai 200025, USA.

PMID: 10500192 PMCID: PMC18049 DOI: 10.1073/pnas.96.20.11422

Abstract

The promyelocytic leukemia zinc finger gene (PLZF) is involved in chromosomal translocation t(11;17) associated with acute promyelocytic leukemia. In this work, a 201-kilobase genomic DNA region containing the entire PLZF gene was sequenced. Repeated elements account for 19.83%, and no obvious coding information other than PLZF is present over this region. PLZF contains six exons and five introns, and the exon organization corresponds well with protein domains. There are at least four alternative splicings (AS-I, -II, -III, and -IV) within exon 1. AS-I could be detected in most tissues tested whereas AS-II, -III, and -IV were present in the stomach, testis, and heart, respectively. Although splicing donor and acceptor signals at exon-intron boundaries for AS-I and exons 1-6 were classical (gt-ag), AS-II, -III, and -IV had atypical splicing sites. These alternative splicings, nevertheless, maintained the ORF and may encode isoforms with absence of important functional domains. In mRNA species without AS-I, there is a relatively long 5' UTR of 6.0 kilobases. A TATA box and several transcription factor binding sites were found in the putative promoter region upstream of the transcription start site. PLZF is a well conserved gene from Caenorhabditis elegans to human. PLZF paralogous sequences are found in human genome. The presence of two MLL/PLZF-like alignments on human chromosome 11q23 and 19 suggests a syntenic replication during evolution. The chromosomal breakpoints and joining sites in the index acute promyelocytic leukemia case with t(11;17) also were characterized, which suggests the involvement of DNA damage-repair mechanism.

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