The expression of phenylalanine hydroxylase in the brain of ragworm Neanthes japonica (Polychaeta, Annelida).

Guimin Ren; Zhe Dong; Chao Liu; Yimeng Liu; Zhidong Luan; Qi Liu; Xuexiang Bao; Shun Wang

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The expression of phenylalanine hydroxylase in the brain of ragworm Neanthes japonica (Polychaeta, Annelida).

Author: Guimin REN ¹ ; Zhe DONG ¹ ; Chao LIU ² ; Yimeng LIU ² ; Zhidong LUAN ² ; Qi LIU ³ ; Xuexiang BAO ³ ; Shun WANG ¹
Author Information

1. Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China.
2. Department of Developmental Biology, School of Basic Medical Sciences, Liaoning Medical University, Jinzhou 121000, Liaoning, China.
3. Laboratory of Insect Brain Biology, Northeast Normal University, Changchun 130024, Jilin, China.
Publication Type:Journal Article
Keywords: Neanthes japonica; RT-PCR; immunohistochemistry; phenylalanine hydroxylase
MeSH: Animals; Blotting, Western; Brain; enzymology; Escherichia coli; metabolism; Phenylalanine Hydroxylase; genetics; metabolism; Polychaeta; enzymology; genetics
From: Chinese Journal of Biotechnology 2016;32(4):518-526
CountryChina
Language:Chinese
Abstract: Phenylalanine hydroxylase (PAH) is a member of aromatic amino acid hydroxylase (AAAHs) family, and catalyze phenylalanine (Phe) into tyrosine (Tyr). Using immunological and RT-PCR methods to prove the existence of phenylalanine hydroxylase (PAH) gene in the brain of Neanthes japonica in protein and nucleic acid level. Using Western blotting to detect the pah immunogenicity of Neanthes japonica. Making paraffin sections and using immunohistochemical technique to identify the presence and distribution of the phenylalanine hydroxylase gene in the brain of Neanthes japonica. Clone pah gene from the brain of Neanthes japonica by RT-PCR, constructing plasmid and transferring into E. coli to amplification, picking a single homogeneous colony, double digesting then making sequence and comparing homology. Western blotting results showed that the expression of the protein is present in Neanthes japonica brain, immunohistochemistry technique results showed that phenylalanine hydroxylase mainly expressed in abdominal of forebrain, dorsal and sides of midbrain. RT-PCR technique results showed that the phenylalanine hydroxylase exist in the brain of Neanthes japonica and has a high homology with others animals. PAH is present in the lower organisms Neanthes japonica, in protein and nucleic acid level. Which provide the foundation for further study the evolution of aromatic amino acid hydroxylase genes in invertebrate.