High level of single-nucleotide polymorphism in the rat cyclin B1 gene

1999 ◽  
Vol 10 (6) ◽  
pp. 635-637 ◽  
Author(s):  
Joëlle Petit ◽  
Michèle Rivière ◽  
Josiane Szpirer ◽  
Claude Szpirer
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Cyclin B1 ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
B1 Gene ◽  
High Level

scholarly journals THE ROLE OF GENETIC VARIATION SINGLE NUCLEOTIDE POLYMORPHISM T45G AND SINGLE NUCLEOTIDE POLYMORPHISM G276T OF THE ADIPONECTIN GENE IN FATTY LIVER PATHOMECHANISM ON OBESE MALE SUBJECT

2018 ◽  
Vol 11 (13) ◽  
pp. 229
Author(s):  
Sulaeman A ◽  
Wahid S ◽  
Sulaiman A ◽  
Lawrence Sg
Keyword(s):  
Insulin Resistance ◽  
Single Nucleotide Polymorphism ◽  
Genetic Variation ◽  
Fatty Liver ◽  
Adiponectin Gene ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Obese Subjects ◽  
High Level ◽  
Obese Male

  Objective: The aim of this study was to observe the role of genetic variation T45G and G276T of adiponectin gene in pathomechanism of fatty liver on obese subjects.Methods: An observational study with case–control design was conducted on 94 obese male subjects (50 subjects are obese male with fatty liver and 44 subjects are obese male without fatty liver). The research is taken place in Prodia Clinical Laboratory Makassar to determine genetic variation single nucleotide polymorphism (SNP) T45G (Genotype TT, thyroglobulin [TG], and GG) and SNP G276T (Genotype GG, GT, and TT) of adiponectin gene, technique of polymerase chain reaction-restriction fragment length polymorphism was used. The level of adiponectin, soluble tumor necrosis factor-α receptor 2 (sTNF-αR2), and insulin serum were measured by enzyme-linked immunosorbent assay method, meanwhile, fatty liver was detected by ultrasonography.Results: The result of the study showed genetic variation, T45G of adiponectin gene was genotype TT 62.8 %, genotype TG 30.9%, and genotype GG 6.3%; meanwhile, genetic variation G276T of adiponectin gene was genotype GG 43.6%, genotype GT 38.3 %, and genotype TT 18.1 %. There was no significant correlation of genetic variation T45G as well as G276T of adiponectin gene, to the level of adiponectin serum (>0.05). Insulin resistance was more frequent on genotype TT genetic variation T45G of adiponectin gene as compare to that on TG+GG (p=0.069). Genotype TT on genetic variation T45G of adiponectin gene was significant correlated with fatty liver (p=0.010). Genotype TG+TT on genetic variation G276T of adiponectin gene was more likely to have insulin resistance and fatty liver than that of genotype GG. Allele T carrier on genetic variation T45G and G276T of adiponectin gene had a higher chance to have insulin resistance and fatty liver as compare to that of allele G carrier. The odds ratio of having fatty liver insulin resistance is 5.3, genotype TT on genetic variation T45G of adiponectin gene is 3.8, low level of adiponectin is 3.4, and high level of sTNF-αR2 is 3.3.Conclusion: Genotype TT on genetic variation T45G of adiponectin gene has a role in fatty liver on obese subjects. Genotype TG+TT on genetic variation G276T of adiponectin gene was more high frequent to have fatty liver compare to that on genotype GG. Allele T carrier on genetic variation T45G of adiponectin gene had higher frequency on the occurrence of insulin resistance than that on allele G carrier. Insulin resistance has the highest influence as compare to genotype TT on genetic variation T45G of adiponectin gene, low level of adiponectin serum, high level of sTNF-αR2 serum in the pathomechanism of fatty liver in obese subjects.

scholarly journals SNP in DFR1 Coding Sequence Is Tightly Associated with Anthocyanin Accumulation in Cabbage (B. oleracea var. capitata f. alba) at Low Temperature

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 602 ◽  
Author(s):  
Hayoung Song ◽  
Jong-In Park ◽  
Byung-Ho Hwang ◽  
Hankuil Yi ◽  
HyeRan Kim ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Amino Acid ◽  
Low Temperature ◽  
Anthocyanin Accumulation ◽  
Nucleotide Polymorphism ◽  
High Level Expression ◽  
Single Nucleotide ◽  
Coding Sequence ◽  
Low Level ◽  
High Level

Keeping green leaf color at the time of harvest is one of the important traits for breeding of Brassica oleracea var. capitata f. alba, and this trait is related to low anthocyanin contents. To understand the differential accumulation of anthocyanins in cabbage, we selected high anthocyanin accumulators (HAAs) and low anthocyanin accumulator (LAAs) of cabbages and examined the anthocyanin content and the expression of anthocyanin biosynthesis-related genes. Among many genes investigated, BoDFR1 was found to be closely related to anthocyanin accumulation, even under low temperature (LT) conditions. BoDFR1 sequence analyses between HAAs and LAAs revealed that there is a single nucleotide polymorphism (SNP) (1118T/A) in the coding sequence, which substitutes one amino acid from Leu261 to His261; we named BoDFR1 with His261 substitution as BoDFR1v. This amino acid substitution did not affect dihydroflavonol 4-reductase (DFR) activity and substrate specificity, but the polymorphism showed tight association to the BoDFR1 expression, i.e., high level expression of BoDFR1 and low level expression of BoDFR1v under LT conditions. The high levels of BoDFR1 expression were due to the high levels of BoMYB114 and BobHLH expressions combined with low level expression of BoMYBL2, a repressor MYB. On the other hand, low levels of BoDFR1v expression seemed to be related to very low level expressions of BoMYB114 and BobHLH combined with a high level expression of BoMYBL2. It seems that different expression levels of these regulatory genes for MBW (MYB-bHLH-WD40) complex between HAAs and LAAs regulate BoDFR expression and anthocyanin accumulation. Using a single nucleotide polymorphism (SNP) between BoDFR1 and BoDFR1v, molecular markers for PCR and high resolution melt analyses were developed and validated to distinguish between HAAs and LAAs. Combined use of the BoDFR1 SNP marker with other stress markers, such as a cold tolerant marker, will greatly improve cabbage breeding.

BCL2 expression in chronic lymphocytic leukemia: lack of association with the BCL2 −938A>C promoter single nucleotide polymorphism

Blood ◽  
2008 ◽  
Vol 111 (2) ◽  
pp. 874-877 ◽  
Author(s):  
Aneela Majid ◽  
Olga Tsoulakis ◽  
Renata Walewska ◽  
Stefan Gesk ◽  
Reiner Siebert ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Chronic Lymphocytic Leukemia ◽  
Protein Expression ◽  
Lymphocytic Leukemia ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Protein Levels ◽  
Bcl2 Protein ◽  
High Level ◽  
Bcl2 Expression

High-level BCL2 expression is seen in most patients with chronic lymphocytic leukemia (CLL) in the absence of BCL2 chromosomal translocation. A single nucleotide polymorphism (SNP; −938C>A) within an inhibitory region of the BCL2 promoter has been reported to regulate BCL2 protein expression and to be associated with adverse prognostic features in CLL. We screened 276 patients with CLL for this SNP and 100 patients by quantitative Western blot for BCL2 expression. In contrast to the previous report, we found no association with BCL2 protein levels or with any clinical or laboratory parameters. BCL2 protein levels remained constant in 10 individual patients at different time points. A total of 19 patients with the lowest levels of BCL2 protein expression were biologically and clinically heterogeneous; 5 patients exhibited high-level BCL2 RNA expression and 4 were fludarabine resistant. BCL2 protein levels in CLL reflect a complex interplay of transcriptional and posttranscriptional controls, but do not appear to be associated with the −938C>A promoter SNP.

UTILIZATION OF DNA MARKERS FOR EVALUATING AMYLOSE CONTENT OF GRAIN IN RICE

2013 ◽  
Vol 83 (5) ◽  
Author(s):  
Dương Thanh Thủy ◽  
Taiichiro Ookawa
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Amylose Content ◽  
Waxy Gene ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Branching Enzymes ◽  
Wx Gene ◽  
High Amylose ◽  
Suitable Marker ◽  
Granule Bound Starch Synthase

The sensory and functional properties of rice are predominantly associated with its amylose content. Granule-bound starch synthase (GBSS) encoded by the Waxy (Wx) gene determines the synthesis of amylose, while starch branching enzymes encoded by Sbe genes are involved in the formation of amylopectin. Some studies have demonstrated that Wx gene is the major controller of amylose content but there are one or more modifying genes affecting the amylose content. Three markers,  microsatellite, Single – nucleotide – polymorphism (G/T SNP) in Wx gene and Single – nucleotide – polymorphism (T/C SNP) in Sbe1 gene, were tested for their association with amylose content using sixty-nine  rice accessions from twenty countries. Of the three markers, two markers in Wx gene are significantly associated with amylose content. The combination of two markers in Wx gene (haplotypes) explained 83.8% of the variation in amylose content and discriminated the three market classes of glutinous, low, intermediate and high amylose content of rice from each other. And T/C SNP in Sbe1 locus was not a suitable marker for amylose content. Keywords: marker, amylose content, Waxy gene.

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