Mohlomi Nikwando, Nkuna Rosina, Permaul Kugenthiren, Singh Suren, Puri Adarsh Kumar
Department of Biotechnology and Food Science, Durban University of Technology, Durban 4001, South Africa.
Department of Biotechnology, Faculty of Applied and Computer Sciences, Vaal University of Technology, Vanderbijlpark 1900, Gauteng, South Africa.
ACS Omega. 2024 Dec 20;10(1):93-101. doi: 10.1021/acsomega.3c05803. eCollection 2025 Jan 14.
Anaerobic digestion is a crucial process in wastewater treatment, renowned for its sustainable biogas production capabilities and the simultaneous reduction of environmental pollution. However, dysregulation of vital biological processes and pathways can lead to reduced efficiency and suboptimal biogas output, which can be seen through low counts per million of sequences related to three critical control points for methane synthesis. Namely, tetrahydromethanopterin S-methyltransferase (MTR), methyl-coenzyme reductase M (MCR), and CoB/CoM heterodisulfide oxidoreductase (HDR) are the last reactions that must occur. This study leveraged sequencing data from NCBI's Sequence Read Archive (SRA) database whose sample origins were of two model full-scale biodigesters. By assembling a genome BBBAS3_2 (86.4% complete), this study was able to align, assemble, and follow expression patterns related to KEGG pathways and sample conditions. This study detected and estimated expression patterns of conserved (in methanogenic archae) alleles for electron cycling by the heterodisulfide reductase complex, methylation and demethylation by methyltransferases, and oxidation of active coenzymes A and B by methyl-coenzyme reductase to surveil counts of sequences at critical control points. Utilizing a streamlined cloud bioinformatics approach with Omicsbox and Kbase, this study bridges the division between data-intensive sequencing and innovative solutions for methane optimization.
厌氧消化是废水处理中的一个关键过程,以其可持续的沼气生产能力和同时减少环境污染而闻名。然而,重要生物过程和途径的失调会导致效率降低和沼气产量不理想,这可以通过与甲烷合成的三个关键控制点相关的每百万序列计数较低来体现。具体而言,四氢甲蝶呤S-甲基转移酶(MTR)、甲基辅酶还原酶M(MCR)和CoB/CoM异二硫化物氧化还原酶(HDR)是必须发生的最后反应。本研究利用了来自NCBI序列读取存档(SRA)数据库的测序数据,其样本来源是两个典型的全规模生物消化器。通过组装基因组BBBAS3_2(完成度86.4%),本研究能够对与KEGG途径和样本条件相关的基因进行比对、组装并跟踪其表达模式。本研究检测并估计了保守(在产甲烷古菌中)等位基因的表达模式,这些等位基因参与异二硫化物还原酶复合物的电子循环、甲基转移酶的甲基化和去甲基化,以及甲基辅酶还原酶对活性辅酶A和B的氧化,以监测关键控制点的序列计数。本研究利用Omicsbox和Kbase的简化云生物信息学方法,弥合了数据密集型测序与甲烷优化创新解决方案之间的差距。