Polypeptide, polynucleotide, construct and expression system and battery thereof

The invention discloses a polypeptide, a polynucleotide, a construct and an expression system and a battery thereof. According to the polypeptide as well as the polynucleotide and the battery thereof, from the N terminal to the C terminal, the first site, the 24th site and the 27th site of the polypeptide are aromatic amino acids. A power generation material sequence is found from microorganisms which do not produce power generation materials in nature, recombinant proteins of various microorganisms are produced by using escherichia coli, and the recombinant proteins have an excellent power generation function. 本申请公开了一种多肽、多核苷酸、构建体及其表达系统和电池。本申请的多肽及其多核苷酸与电池，从N端到C端，多肽的第1、24、27位为芳香族氨基酸。本申请从自然界不生产发电材料的微生物中发现了发电材料序列，并利用大肠杆菌生产了多种微生物的重组蛋白，这些重组蛋白具有优异的发电功能。