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DPY19L2 gene mutations are a major cause of globozoospermia: identification of three novel point mutations.
Mol Hum Reprod. 2013 Jun; 19(6):395-404.MH

Abstract

Globozoospermia, characterized by round-headed spermatozoa without acrosomes, is a rare and severe teratozoospermia causing primary male infertility. Homozygous DPY19L2 deletions have been identified as the main cause of globozoospermia, blocking sperm head elongation and acrosome formation. Several previous studies showed a very different prevalence of DPY19L2 gene deletions among globozoospermic patients in cohorts with different sample sizes and in different ethnic background. And all the patients previously analyzed were mainly of European, North African and Middle Eastern origins. So far, only 11 different point mutations of the DPY19L2 gene have been reported. To investigate the prevalence of DPY19L2 gene mutations in Chinese patients with globozoospermia and whether we can identify new sequence variants in this study, we recruited a total of 16 globozoospermic patients. Excluding one of two brothers, molecular analysis for deletions and mutations in the DPY19L2 gene was performed on 15 genetically independent individuals. Four of the 15 genetically independent patients with globozoospermia were homozygous for the DPY19L2 deletion, 5 were homozygous for a point mutation including a nucleotide deletion c.1532delA (two patients), a multi-mutation consisting of a nucleotide deletion c.1679delT and a two-nucleotide deletion c.1681_1682delAC (c.[1679delT; 1681_1682delAC]) (one patient), a recurrent missense mutation R290H (one patient) and a missense mutation L330P (one patient). One additional patient had a heterozygous deletion in one allele but with no mutation identified in another allele. Overall, 60% of the patients (9/15) have a sequence variant of DPY19L2 in both alleles. This study confirms that the DPY19L2 mutations are the major cause of globozoospermia. Three novel point mutations and a recurrent missense mutation were found in this study, further broadening the spectrum of DPY19L2 mutations.

Authors+Show Affiliations

Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha 410078, PR China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23512994

Citation

Zhu, Fuxi, et al. "DPY19L2 Gene Mutations Are a Major Cause of Globozoospermia: Identification of Three Novel Point Mutations." Molecular Human Reproduction, vol. 19, no. 6, 2013, pp. 395-404.
Zhu F, Gong F, Lin G, et al. DPY19L2 gene mutations are a major cause of globozoospermia: identification of three novel point mutations. Mol Hum Reprod. 2013;19(6):395-404.
Zhu, F., Gong, F., Lin, G., & Lu, G. (2013). DPY19L2 gene mutations are a major cause of globozoospermia: identification of three novel point mutations. Molecular Human Reproduction, 19(6), 395-404. https://doi.org/10.1093/molehr/gat018
Zhu F, et al. DPY19L2 Gene Mutations Are a Major Cause of Globozoospermia: Identification of Three Novel Point Mutations. Mol Hum Reprod. 2013;19(6):395-404. PubMed PMID: 23512994.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - DPY19L2 gene mutations are a major cause of globozoospermia: identification of three novel point mutations. AU - Zhu,Fuxi, AU - Gong,Fei, AU - Lin,Ge, AU - Lu,Guangxiu, Y1 - 2013/03/19/ PY - 2013/3/21/entrez PY - 2013/3/21/pubmed PY - 2013/12/16/medline KW - DPY19L2 KW - genetics of infertility KW - globozoospermia KW - point mutations SP - 395 EP - 404 JF - Molecular human reproduction JO - Mol. Hum. Reprod. VL - 19 IS - 6 N2 - Globozoospermia, characterized by round-headed spermatozoa without acrosomes, is a rare and severe teratozoospermia causing primary male infertility. Homozygous DPY19L2 deletions have been identified as the main cause of globozoospermia, blocking sperm head elongation and acrosome formation. Several previous studies showed a very different prevalence of DPY19L2 gene deletions among globozoospermic patients in cohorts with different sample sizes and in different ethnic background. And all the patients previously analyzed were mainly of European, North African and Middle Eastern origins. So far, only 11 different point mutations of the DPY19L2 gene have been reported. To investigate the prevalence of DPY19L2 gene mutations in Chinese patients with globozoospermia and whether we can identify new sequence variants in this study, we recruited a total of 16 globozoospermic patients. Excluding one of two brothers, molecular analysis for deletions and mutations in the DPY19L2 gene was performed on 15 genetically independent individuals. Four of the 15 genetically independent patients with globozoospermia were homozygous for the DPY19L2 deletion, 5 were homozygous for a point mutation including a nucleotide deletion c.1532delA (two patients), a multi-mutation consisting of a nucleotide deletion c.1679delT and a two-nucleotide deletion c.1681_1682delAC (c.[1679delT; 1681_1682delAC]) (one patient), a recurrent missense mutation R290H (one patient) and a missense mutation L330P (one patient). One additional patient had a heterozygous deletion in one allele but with no mutation identified in another allele. Overall, 60% of the patients (9/15) have a sequence variant of DPY19L2 in both alleles. This study confirms that the DPY19L2 mutations are the major cause of globozoospermia. Three novel point mutations and a recurrent missense mutation were found in this study, further broadening the spectrum of DPY19L2 mutations. SN - 1460-2407 UR - https://www.unboundmedicine.com/medline/citation/23512994/DPY19L2_gene_mutations_are_a_major_cause_of_globozoospermia:_identification_of_three_novel_point_mutations_ L2 - https://academic.oup.com/molehr/article-lookup/doi/10.1093/molehr/gat018 DB - PRIME DP - Unbound Medicine ER -