Characterization of the nonallelic homologous recombination hotspot PRS3 associated with type‐3 NF1 deletions
Characterization of the nonallelic homologous recombination hotspot PRS3 associated with type‐3 NF1 deletions
复制标题
与 3 型 NF1 缺失相关的非等位基因同源重组热点 PRS3 的表征
DOI:
10.1002/humu.21644
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发表时间:
2012
期刊:
影响因子:
3.9
通讯作者:
Kehrer-Sawatzki H
中科院分区:
文献类型:
--
作者:
Zickler AM;Hampp S;Messiaen L;Bengesser K;Mussotter T;Roehl AC;Wimmer K;Mautner VF;Kluwe L;Upadhyaya M;Pasmant E;Chuzhanova N;Kestler HA;Högel J;Legius E;Claes K;Cooper DN;Kehrer-Sawatzki H
Nonallelic homologous recombination (NAHR) is the major mechanism underlying recurrent genomic rearrangements, including the large deletions at 17q11.2 that cause neurofibromatosis type 1 (NF1). Here, we identify a novel NAHR hotspot, responsible for type‐3NF1deletions that span 1.0 Mb. Breakpoint clustering within this 1‐kb hotspot, termed PRS3, was noted in 10 of 11 known type‐3NF1deletions. PRS3 is located within theLRRC37Bpseudogene of the NF1‐REPb and NF1‐REPc low‐copy repeats. In contrast to other previously characterized NAHR hotspots, PRS3 has not developed on a preexisting allelic homologous recombination hotspot. Furthermore, the variation pattern of PRS3 and its flanking regions is unusual since only NF1‐REPc (and not NF1‐REPb) is characterized by a high single nucleotide polymorphism (SNP) frequency, suggestive of unidirectional sequence transfer via nonallelic homologous gene conversion (NAHGC). By contrast, the previously described intense NAHR hotspots within the CMT1A‐REPs, and the PRS1 and PRS2 hotspots underlying type‐1NF1deletions, experience frequent bidirectional sequence transfer. PRS3 within NF1‐REPc was also found to be involved in NAHGC with theLRRC37Bgene, the progenitor locus of theLRRC37B‐P duplicons, as indicated by the presence of shared SNPs between these loci. PRS3 therefore represents a weak (and probably evolutionarily rather young) NAHR hotspot with unique properties. Hum Mutat 33:372–383, 2012. © 2011 Wiley Periodicals, Inc.
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DOI:
10.1073/pnas.0804933105
发表时间:
2008-07-29
影响因子:
11.1
作者:
Webb, Adam J.;Berg, Ingrid L.;Jeffreys, Alec
通讯作者:
Jeffreys, Alec
DOI:
10.1073/pnas.1003634107
发表时间:
2010
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
R. Neumann;Victoria E Lawson;A. Jeffreys
通讯作者:
A. Jeffreys
影响因子:
9.8
作者:
Katharina Steinmann;D. Cooper;L. Kluwe;N. Chuzhanova;C. Senger;E. Serra;C. Lázaro;M. Gilaberte;K. Wimmer;V. Mautner;H. Kehrer
通讯作者:
H. Kehrer
影响因子:
30.8
作者:
Jeffreys, AJ;May, CA
通讯作者:
May, CA
影响因子:
3.9
作者:
Pasmant, Eric;Sabbagh, Audrey;Vidaud, Dominique
通讯作者:
Vidaud, Dominique