	US 12,109,532 B2
	Variant of nitrous oxide reductase protein and method of reducing concentration of nitrous oxide in sample
Woo Yong Shim, Hwaseong-si (KR); Seung Hoon Song, Suwon-si (KR); Jae-Young Kim, Suwon-si (KR); and Yu Kyung Jung, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 23, 2022, as Appl. No. 17/751,066.
Claims priority of application No. 10-2021-0175198 (KR), filed on Dec. 8, 2021.
Prior Publication US 2023/0173432 A1, Jun. 8, 2023
Int. Cl. B01D 53/84 (2006.01); C12N 15/70 (2006.01)

CPC B01D 53/84 (2013.01) [C12N 15/70 (2013.01); B01D 2251/95 (2013.01); B01D 2255/804 (2013.01)]

19 Claims

1. A recombinant microorganism comprising a foreign gene encoding a nitrous oxide reductase enzyme, wherein the enzyme is nitrous oxide reductase NosZ having at least 85% amino acid sequence identity to SEQ ID NO: 1, and wherein the enzyme comprises an amino acid alteration of an amino acid residue corresponding to position H78 of the amino acid sequence of SEQ ID NO: 1, wherein the microorganism belongs to the genus Escherichia.