PMID- 36279412 OWN - NLM STAT- MEDLINE DCOM- 20221109 LR - 20221215 IS - 1520-5827 (Electronic) IS - 0743-7463 (Linking) VI - 38 IP - 44 DP - 2022 Nov 8 TI - Preferential Adsorption of Prominent Amino Acids in the Urease Enzyme of Sporosarcina pasteurii on Arid Soil Components: A Periodic DFT Study. PG - 13414-13428 LID - 10.1021/acs.langmuir.2c01854 [doi] AB - The urease enzyme is commonly used in microbially induced carbonate precipitation (MICP) and enzyme-induced carbonate precipitation (EICP) to heal and strengthen soil. Improving our understanding of the adsorption of the urease enzyme with various soil surfaces can lead to advancements in the MICP and EICP engineering methods as well as other areas of soil science. In this work, we use density functional theory (DFT) to investigate the urease enzyme's binding ability with four common arid soil components: quartz, corundum, albite, and hematite. As the urease enzyme cannot directly be simulated with DFT due to its size, the amino acids comprising at least 5% of the urease enzyme were simulated instead. An adsorption model incorporating the Gibbs free energy was used to determine the existence of amino acid-mineral binding modes. It was found that the nine simulated amino acids bind preferentially to the different soil components. Alanine favors corundum, glycine and threonine favor hematite, and aspartic acid favors albite. It was found that, under the standard environmental conditions considered here, amino acid binding to quartz is unfavorable. In the polymeric form where the side chains would dominate the binding interactions, hematite favors aspartic acid through its R-OH group and corundum favors glutamic acid through its R-Ket group. Overall, our model predicts that the urease enzyme produced by Sporosarcina pasteurii can bind to various oxides found in arid soil through its alanine, glycine, aspartic/glutamic acid, or threonine residues. FAU - Pisani, William A AU - Pisani WA AUID- ORCID: 0000-0002-5172-862X AD - Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee37830, United States. AD - Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi39180, United States. FAU - Jenness, Glen R AU - Jenness GR AUID- ORCID: 0000-0001-7636-7229 AD - Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi39180, United States. FAU - Schutt, Timothy C AU - Schutt TC AD - Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi39180, United States. FAU - Larson, Steven L AU - Larson SL AD - Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi39180, United States. FAU - Shukla, Manoj K AU - Shukla MK AUID- ORCID: 0000-0002-7560-1172 AD - Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi39180, United States. LA - eng GR - R01 GM129325/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20221024 PL - United States TA - Langmuir JT - Langmuir : the ACS journal of surfaces and colloids JID - 9882736 RN - EC 3.5.1.5 (Urease) RN - 1K09F3G675 (ferric oxide) RN - 0 (Soil) RN - 0 (Amino Acids) RN - 14808-60-7 (Quartz) RN - 30KYC7MIAI (Aspartic Acid) RN - H0G9379FGK (Calcium Carbonate) RN - 0 (Carbonates) RN - TE7660XO1C (Glycine) RN - OF5P57N2ZX (Alanine) RN - LMI26O6933 (Aluminum Oxide) RN - 2ZD004190S (Threonine) RN - 0 (Glutamates) RN - Sporosarcina pasteurii SB - IM MH - *Urease/metabolism MH - *Soil MH - Adsorption MH - Amino Acids MH - Quartz MH - Aspartic Acid MH - Calcium Carbonate/chemistry MH - Carbonates MH - Glycine MH - Alanine MH - Aluminum Oxide MH - Threonine MH - Glutamates EDAT- 2022/10/25 06:00 MHDA- 2022/11/10 06:00 CRDT- 2022/10/24 15:12 PHST- 2022/10/25 06:00 [pubmed] PHST- 2022/11/10 06:00 [medline] PHST- 2022/10/24 15:12 [entrez] AID - 10.1021/acs.langmuir.2c01854 [doi] PST - ppublish SO - Langmuir. 2022 Nov 8;38(44):13414-13428. doi: 10.1021/acs.langmuir.2c01854. Epub 2022 Oct 24.