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MicroRNAs (miRNAs) are a class of ~22-nt non-coding small RNA that play an important role in various metabolic processes, mainly through suppressing the expression of protein coding genes at post-transcriptional level. Drip loss (DL) is one of the most important meat quality traits affecting the end product yield and quality of pork. To date, the underlying regulatory factors involved in DL trait...
COL3A1 encodes the protein, collagen type III alpha 1, which is an important component of collagen. Collagen can have a considerable effect on the processing quality of meat, and is nutritious. Bioinformatic analysis using Targetscan showed that COL3A1 could be a target gene of miRNA-29a. Moreover, we found that Laiwu pigs have higher levels of type III collagen and lower levels of miRNA-29a than...
The neonatal Fc receptor (FcRn) transports IgG from mother to young and is involved in antigen presentation. FcRn is structurally similar to MHC class I, but its intracellular trafficking pathway is much more analogous to that of MHC class II. Ia-associated invariant chain (Ii) molecules play an additional role in directing MHC class II trafficking within the endocytic compartments by physical association...
Tudor domain-containing proteins (TDRDs) are characterized by various numbers of Tudor domains, which are known to recognize and bind to symmetric methylated arginine residues. These proteins affect a wide variety of processes, including differentiation, genome stability and gametogenesis. In mammals, there are 12 members (TDRD1–TDRD12) in the TDRD protein family. Among them, the information about...
Parthenogenetically activated oocytes cannot develop to term in mammals due to the lack of paternal gene expression and failed X chromosome inactivation (XCI). To further characterize porcine parthenogenesis, the expression of 18 imprinted genes was compared between parthenogenetic (PA) and normally fertilized embryos (Con) using quantitative real-time PCR (qRT-PCR). The results revealed that maternally...
The enzymes 3β-hydroxysteroid dehydrogenase (3βHSD) and 17β-hydroxysteroid dehydrogenase (17βHSD) regulate the steroid metabolism in mammals. In this study, we aimed to characterize the steroid related transcription factors at the 5′ flanking region of these two genes. A series of 5′ deletions of approximately 1kb of 5′-flanking region on both genes were fused to a pGL3 basic vector containing firefly...
The transforming growth factor beta (TGF beta) family is essential for normal growth and development of different organ systems. Here we describe the isolation and molecular characterization of the full-length cDNA and the determination of the genomic DNA sequence of the porcine TGFBR1 gene. The full-length TGFBR1 cDNA 1813 bp contains an open reading frame (ORF) of 1512 bp encoding a TGFBR1 protein...
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