title: Identification and characterization of matrix metalloproteinase-13 sequence structure and expression during embryogenesis and infection in channel catfish (Ictalurus punctatus).
abstract: Matrix metalloproteinase-13 (MMP-13), referred to as collagenase-3, is a proteolytic enzyme that plays a key role in degradation and remodelling of host extracellular matrix proteins. The objective of this study was to characterize the MMP-13 gene in channel catfish, and to determine its pattern of expression in various healthy tissues and during embryogenesis. Since MMP-13 has been shown to have importance in tissue remodelling and some pathological processes, we further studied its involvement in the defense responses of catfish after bacterial infection. The channel catfish MMP-13 cDNA contains an open reading frame of 1416bp encoding 471 amino acids. Using RT-PCR analysis, MMP-13 was widely expressed in various health tissues. Using quantitative real-time PCR analysis, expression of MMP-13 gene was up-regulated by bacterial infection. During normal embryological development, MMP-13 expression was slightly increased in the first day post-fertilization and sharply up-regulated from 1-day post-fertilization through hatching.
authors.affiliation: The Fish Molecular Genetics and Biotechnology Laboratory, Department of Fisheries and Allied Aquacultures, Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL 36849, USA.
authors.forename: Yanliang
authors.initials: Y
authors.lastname: Jiang
authors.forename: Jason W
authors.initials: JW
authors.lastname: Abernathy
authors.forename: Eric
authors.initials: E
authors.lastname: Peatman
authors.forename: Hong
authors.initials: H
authors.lastname: Liu
authors.forename: Shaolin
authors.initials: S
authors.lastname: Wang
authors.forename: De-Hai
authors.initials: DH
authors.lastname: Xu
authors.forename: Huseyin
authors.initials: H
authors.lastname: Kucuktas
authors.forename: Phillip
authors.initials: P
authors.lastname: Klesius
authors.forename: Zhanjiang
authors.initials: Z
authors.lastname: Liu
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002397:Catfishes; D020609:Edwardsiella tarda / Q000276:immunology* / Q000472:pathogenicity; D047108:Embryonic Development / Q000235:genetics / Q000276:immunology; D004756:Enterobacteriaceae Infections / Q000276:immunology*; D020869:Gene Expression Profiling; D018507:Gene Expression Regulation, Developmental; D007059:Ictaluridae / Q000276:immunology; D007113:Immunity, Innate / Q000235:genetics; D053509:Matrix Metalloproteinase 13 / Q000235:genetics* / Q000276:immunology / Q000378:metabolism; D008969:Molecular Sequence Data; D017422:Sequence Analysis, DNA
chemical_list: D053509:Matrix Metalloproteinase 13