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Hypochondroplasia (HCH; OMIM 146000) is a common autosomal dominant skeletal dysplasia characterized by disproportionate short stature, short extremities, relative macrocephaly, and lumbar lordosis. Because of its clinical and genetic heterogeneity, gene mutational analysis is particularly important in diagnosis and the phenotypes may be ameliorated if diagnosed early.In this study, we examined a...
X-chromosomal short tandem repeats (X-STRs) have been widely used in forensic practices involving complicated ties of kinship over the past years, and also play an increasingly important role in population genetics. To study the genetic polymorphisms of 19 STR loci on X chromosome in Chinese Kazak ethnic group, we investigated the allelic and haplotypic frequencies of the 19 loci in 300 (149 males...
The SPSB family is comprised of four highly conserved proteins, each containing a C-terminal SOCS box motif and a central SPRY domain. Presently, Spsb genes have been found in mammals and in a few invertebrates, however, the specific functions of these genes are still unknown. In this study, we identified a Spsb gene from the planarian Dugesia japonica and termed it DjSpsb. The temporal and spatial...
Human cytomegalovirus (HCMV) infection, a worldwide contagion, causes a serious disorder in infected individuals. Analysis of codon usage can reveal much molecular information about this virus. The effective number of codon (ENC) values, relative synonymous codon usage (RSCU) values, codon adaptation index (CAI), and nucleotide contents was investigated in approximately 160 coding sequences (CDS)...
Drosophila RNP-4F is a highly conserved protein from yeast to human and functions as a spliceosome assembly factor during pre-mRNA splicing. Two major developmentally regulated rnp-4f mRNA isoforms have been described during fly development, designated “long” and “short,” differing by a 177-nt tract in the 5′-UTR. This region potentially folds into a single long stable stem–loop by pairing of intron...
Recent genome-wide association studies (GWAS) that focus on childhood acute lymphoblastic leukemia (ALL), the most common malignancy in children younger than 15years old, have found evidence that single nucleotide polymorphisms (SNPs) in IKZF1 (7p12.2), ARID5B (10q21.2) and CEBPE (14q11.2) are strongly related to the risk of childhood ALL. These polymorphisms may lead to abnormal expression and dysfunction...
Tobacco is one of the most important economic and agricultural crops worldwide. miRNAs have been increasingly acknowledged for their important roles in different biological processes of tobacco. However, few miRNAs have been identified so far in tobacco impeding the development of new tobacco strains with better properties. In this study, high-throughput sequencing technology was employed to identify...
Two major mRNA isoforms arise via alternative splicing in the 5′-UTR of Drosophila splicing assembly factor rnp-4f pre-mRNA, designated “long” (unspliced) and “short” (alternatively spliced). The coding potential for the two isoforms is identical, raising interesting questions as to the control mechanism and functional significance of this 5′-UTR intronic splicing decision. Developmental Northerns...
Our earlier studies (Gene 268 (2001) 183) showed that transcription of the mouse γ-glutamyl hydrolase (γGH) gene is under the control of two separate promoters widely distributed within the genome. We now report on further studies examining the functional characteristics of the more efficient promoter (promoter A) which is contiguous with an exon 1 (exon A1a) alternate within the main body of the...
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