A custom capture sequence approach for oculocutaneous albinism identifies structural variant alleles at the OCA2 locus.
A custom capture sequence approach for oculocutaneous albinism identifies structural variant alleles at the OCA2 locus.
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眼形白化病的自定义捕获序列方法可以确定OCA2基因座的结构变体等位基因。
DOI:
10.1002/humu.24257
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发表时间:
2021-10
期刊:
影响因子:
3.9
通讯作者:
Adams DR
中科院分区:
文献类型:
--
作者:
Loftus SK;Lundh L;Watkins-Chow DE;Baxter LL;Pairo-Castineira E;Nisc Comparative Sequencing Program;Jackson IJ;Oetting WS;Pavan WJ;Adams DR
Oculocutaneous albinism (OCA) is a heritable disorder of pigment production that manifests as hypopigmentation and altered eye development. Exon sequencing of known OCA genes is unsuccessful in producing a complete molecular diagnosis for a significant number of affected individuals. We sequenced the DNA of individuals with OCA using short-read custom capture sequencing that targeted coding, intronic and non-coding regulatory regions of known OCA genes and GWAS-associated pigmentation loci. We identified an OCA2 complex structural variant (CxSV), defined by a 143kb inverted segment reintroduced in intron 1, upstream of the native location. The corresponding CxSV junctions were observed in 11/390 probands screened. The 143kb CxSV presents in one family as a copy number variant (CNV) duplication for the 143kb region. In the remaining 10/11 families, the 143kb CxSV acquired an additional 184kb deletion across the same region, restoring exons 3–19 of OCA2 to a copy-number neutral state. Allele-associated haplotype analysis found rare SNVs rs374519281 and rs139696407 are linked with the 143kb CxSV in both OCA2 alleles. For individuals in which customary molecular evaluation does not reveal a biallelic OCA diagnosis, we recommend preliminary screening for these haplotype-associated rare variants, followed by junction-specific validation for the OCA2 143kb CxSV.
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DOI:
10.3109/13816819009020979
发表时间:
1990-09-01
期刊:
OPHTHALMIC PAEDIATRICS AND GENETICS
影响因子:
--
作者:
CREEL, DJ;SUMMERS, CG;KING, RA
通讯作者:
KING, RA
影响因子:
4.3
作者:
Jagirdar, Kasturee;Smit, Darren J.;Sturm, Richard A.
通讯作者:
Sturm, Richard A.
影响因子:
9.8
作者:
Duffy, David L.;Montgomery, Grant W.;Sturm, Richard A.
通讯作者:
Sturm, Richard A.
影响因子:
4.5
作者:
Han, Jiali;Kraft, Peter;Nan, Hongmei;Guo, Qun;Chen, Constance;Qureshi, Abrar;Hankinson, Susan E.;Hu, Frank B.;Duffy, David L.;Zhao, Zhen Zhen;Martin, Nicholas G.;Montgomery, Grant W.;Hayward, Nicholas K.;Thomas, Gilles;Hoover, Robert N.;Chanock, Stephen;Hunter, David J.
通讯作者:
Hunter, David J.
影响因子:
4
作者:
Galvan-Femenia, Ivan;Obon-Santacana, Mireia;de Cid, Rafael
通讯作者:
de Cid, Rafael