1.JAK2 exon 12 mutation-positive myeloproliferative neoplasm associated with recurrent thromboembolism.
Blood Research 2017;52(1):67-69
No abstract available.
Exons*
;
Thromboembolism*
2.A Comparative Study of Immunohistochemistry and PCR-SSCP for Detection of p53 Mutation In Gastric Carcinoma.
Jong Soon KIM ; Jae Hyuk LEE ; Min Cheol LEE ; Chang Soo PARK ; Sang Woo JUHUNG
Korean Journal of Pathology 1998;32(1):21-28
Mutation of the p53 tumor-suppressor gene in exons 4 through 9 was examined in 34 cases of primary advanced gastric cancer using PCR-SSCP (polymerase chain reaction-single strand conformation polymorphism) and the results were compared with p53 protein expression as determined by immunohistochemistry (IHC) using a monoclonal antibody(DO-1). p53 protein detected by IHC was observed in 14 cases (41.2%) and genotypic mutation detected by PCR-SSCP in exons 4-9 was observed in 13 cases (38.2%) One case showed an aberrant band on PCR-SSCP both in Exon 7 and Exon 8/9. p53 alteration detected by either IHC or PCR-SSCP was observed in 19 cases (55.9%), but only 8 cases (23.5%) showed both p53 mutation and protein expression. We also tried to obtain the correlation between relative intensity of the shifted bands on PCR-SSCP and percentage of positive cells by IHC, but a significant correlation was not seen between relative intensity of shifted bands on PCR-SSCP and positve cell ratio. A discrepancy between p53 protein expression and p53 mutation is observed in primary gastric carcinomas. The reason for this discrepancy are not apparent. However, examination of gastric carcinomas for mutations in other exons may identify a better correlation with protein overexpression. The results obtained in this study suggest that the negative reaction for p53 immunohistochemistry may not necessarily mean no genetic alteration of the p53 locus.
Exons
;
Immunohistochemistry*
;
Stomach Neoplasms
3.Loss of hetorozygosity at p53 exon 4 in Korean colorectal carcinoma.
Sang Chul SUNG ; Kyung Ok LEE ; Kyoo Bum LEE ; Nam Jin YOO ; Won Sang PARK ; Chang Suk KANG ; Joo Sung KIM
Journal of the Korean Cancer Association 1993;25(5):625-629
No abstract available.
Colorectal Neoplasms*
;
Exons*
4.Genomic Identification of N-Trminal Domail Exons of Carcinoembryonic Antigen in Human Colon Carcinoma.
Jin Cheon KIM ; Sun Ae NOH ; Kun Choon PARK ; In Kwon JUNG
Journal of the Korean Cancer Association 1998;30(4):675-682
No abstract available.
Carcinoembryonic Antigen*
;
Colon*
;
Exons*
;
Humans*
5.Huge Steatocystoma Multiplex with New Point Mutation in the Exon 1 of KRT 17 Gene.
Jun Young KIM ; Jun Hong PARK ; Chihyeon SOHNG ; Yong Hyun JANG ; Seok Jong LEE ; Weon Ju LEE
Annals of Dermatology 2018;30(5):633-635
No abstract available.
Exons*
;
Point Mutation*
;
Steatocystoma Multiplex*
6.Association between Dopamine Receptor D4 Polymorphisms and Novelty Seeking Personality Trait in a Korean Population.
Heon Jeong LEE ; Hong Seock LEE ; Hwa Yeon KANG ; Leen KIM ; Min Soo LEE ; Kwang Yoon SUH ; Young Chan BYUN
Journal of Korean Neuropsychiatric Association 2002;41(4):630-637
OBJECTIVES: We investigated the relationship of personality traits with dopamine D4 receptor(DRD4) exon III polymorphism in a Korean population. METHODS: We analysed DRD4 exon III 48-bp repeats polymorphism in 173 Korean healthy female adolescents(age=13.88+/-0.29 years) who also completed Temperament and Character Inventory(TCI). RESULTS: Novelty seeking score of the TCI was significantly higher in the subjects with DRD4 long alleles(>or=5 repeats) compared with the subjects without these(t=2.11, p=0.037). CONCLUSION: The present study supports the previous reports that long repeats of the DRD4-exon III polymorphism are related with Novelty Seeking personality.
Dopamine*
;
Exons
;
Female
;
Humans
;
Receptors, Dopamine*
;
Temperament
7.Genetic analysis of ovarian microcystic stromal tumor.
Jae Hoon LEE ; Hyun Soo KIM ; Nam Hoon CHO ; Jung Yun LEE ; Sunghoon KIM ; Sang Wun KIM ; Young Tae KIM ; Eun Ji NAM
Obstetrics & Gynecology Science 2016;59(2):157-162
Microcystic stromal tumor (MCST) of the ovary is a rare subtype of ovarian tumor first described in 2009. Although high nuclear expression of β-catenin and β-catenin gene (CTNNB1) mutation are related with ovarian MCST, the origin and genetic background of ovarian MCST remain unclear. In this study, two cases of ovarian MCST are presented. Microscopically, the tumors showed a microcystic pattern and regions with lobulated cellular masses with intervening hyalinized, fibrous stroma. Tumor cells of both cases were stained with CD10, vimentin, and Wilms tumor 1. Genetic analysis was performed and β-catenin gene (CTNNB1) mutation in exon 3 was detected in both cases. This is the first report in regards of detecting CTNNB1 mutation in ovarian MCST through the use of pyrosequencing (a novel sequencing technique).
Exons
;
Female
;
Hyalin
;
Ovary
;
Vimentin
;
Wilms Tumor
8.Analysis of Nuclear Mitochondrial DNA Segments of Nine Plant Species: Size, Distribution, and Insertion Loci.
Genomics & Informatics 2016;14(3):90-95
Nuclear mitochondrial DNA segment (Numt) insertion describes a well-known phenomenon of mitochondrial DNA transfer into a eukaryotic nuclear genome. However, it has not been well understood, especially in plants. Numt insertion patterns vary from species to species in different kingdoms. In this study, the patterns were surveyed in nine plant species, and we found some tip-offs. First, when the mitochondrial genome size is relatively large, the portion of the longer Numt is also larger than the short one. Second, the whole genome duplication event increases the ratio of the shorter Numt portion in the size distribution. Third, Numt insertions are enriched in exon regions. This analysis may be helpful for understanding plant evolution.
DNA, Mitochondrial*
;
Exons
;
Genome
;
Genome, Mitochondrial
;
Plants*
9.Exome Sequencing in Mendelian Disorders.
Journal of Genetic Medicine 2010;7(2):119-124
More than 7,000 rare Mendelian diseases have been reported, but less than half of all rare monogenic disorders has been discovered. In addition, the majority of mutations that are known to cause Mendelian disorders are located in protein-coding regions. Therefore, exome sequencing is an efficient strategy to selectively sequence the coding regions of the human genome to identify novel genes associated with rare genetic disorders. The "exome" represents all of the exons in the human genome, constituting about 1.5% of the human genome. Exome sequencing is carried out by targeted capture and intense parallel sequencing. After the first report of successful exome sequencing for the identification of causal genes and mutations in Freeman Sheldon syndrome, exome sequencing has become a standard approach to identify genes in rare Mendelian disorders. Exome sequencing is also used to search the causal genes and variants in complex diseases. The successful use of exome sequencing in Mendelian disorders and complex diseases will facilitate the development of personalized genomic medicine.
Clinical Coding
;
Exome
;
Exons
;
Genome, Human
;
Humans
10.Effect of Next-Generation Exome Sequencing Depth for Discovery of Diagnostic Variants.
Kyung KIM ; Moon Woo SEONG ; Won Hyong CHUNG ; Sung Sup PARK ; Sangseob LEEM ; Won PARK ; Jihyun KIM ; Kiyoung LEE ; Rae Woong PARK ; Namshin KIM
Genomics & Informatics 2015;13(2):31-39
Sequencing depth, which is directly related to the cost and time required for the generation, processing, and maintenance of next-generation sequencing data, is an important factor in the practical utilization of such data in clinical fields. Unfortunately, identifying an exome sequencing depth adequate for clinical use is a challenge that has not been addressed extensively. Here, we investigate the effect of exome sequencing depth on the discovery of sequence variants for clinical use. Toward this, we sequenced ten germ-line blood samples from breast cancer patients on the Illumina platform GAII(x) at a high depth of ~200x. We observed that most function-related diverse variants in the human exonic regions could be detected at a sequencing depth of 120x. Furthermore, investigation using a diagnostic gene set showed that the number of clinical variants identified using exome sequencing reached a plateau at an average sequencing depth of about 120x. Moreover, the phenomena were consistent across the breast cancer samples.
Breast Neoplasms
;
Exome*
;
Exons
;
Genetic Variation
;
Humans