The expression patterns of 14 enzymatic systems in skeletal muscle, liver and heart tissues of three species of Hypostomus from the Iguaçu River basin (Brazil) were investigated. Although the patterns were similar for the three species, different tissues showed differential expressions, and the data showed that differential tissue expressions of isoperoxidases may be due to preferential combination or association of polypeptide subunits. The detected patterns for SOD isozymes showed that the quaternary structures of these enzymes were in disagreement with the subunit number reported for the majority of other vertebrate groups. Tissue-specific restriction on heterotetramer formation also were described in LDH and MDHP isozymes. Thus, these tissue-specific gene expression character in the species of Hypostomus have the greatest potential to be recognized and applied in systematic studies among species of Hypostomus.

中文翻译：

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Hypostomus Lacépède 的三个物种组织特异性同工酶的差异表达，1803（Teleostei：Loricariidae）

研究了来自伊瓜苏河流域（巴西）的三种 Hypostomus 的骨骼肌、肝脏和心脏组织中 14 种酶系统的表达模式。虽然三个物种的模式相似，但不同组织表现出差异表达，数据表明异过氧化物酶的差异组织表达可能是由于多肽亚基的优先组合或关联。SOD 同工酶的检测模式表明，这些酶的四级结构与大多数其他脊椎动物组报告的亚基数不一致。在 LDH 和 MDHP 同工酶中还描述了对异四聚体形成的组织特异性限制。因此，