1
|
Quaye J, Ouedraogo D, Gadda G. Targeted Mutation of a Non-catalytic Gating Residue Increases the Rate of Pseudomonas aeruginosa d-Arginine Dehydrogenase Catalytic Turnover. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71. [PMID: 37933126 PMCID: PMC10655190 DOI: 10.1021/acs.jafc.3c05328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023]
Abstract
Commercial food and l-amino acid industries rely on bioengineered d-amino acid oxidizing enzymes to detect and remove d-amino acid contaminants. However, the bioengineering of enzymes to generate faster biological catalysts has proven difficult as a result of the failure to target specific kinetic steps that limit enzyme turnover, kcat, and the poor understanding of loop dynamics critical for catalysis. Pseudomonas aeruginosa d-arginine dehydrogenase (PaDADH) oxidizes most d-amino acids and is a good candidate for application in the l-amino acid and food industries. The side chain of the loop L2 E246 residue located at the entrance of the PaDADH active site pocket potentially favors the closed active site conformation and secures the substrate upon binding. This study used site-directed mutagenesis, steady-state, and rapid reaction kinetics to generate the glutamine, glycine, and leucine variants and investigate whether increasing the rate of product release could translate to an increased enzyme turnover rate. Upon E246 mutation to glycine, there was an increased rate of d-arginine turnover kcat from 122 to 500 s-1. Likewise, the kcat values increased 2-fold for the glutamine or leucine variants. Thus, we have engineered a faster biocatalyst for industrial applications by selectively increasing the rate of the PaDADH product release.
Collapse
Affiliation(s)
- Joanna
Afokai Quaye
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United
States
| | - Daniel Ouedraogo
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United
States
| | - Giovanni Gadda
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United
States
- Department
of Biology, Georgia State University, Atlanta, Georgia 30302-3965, United
States
- Center
for Diagnostics and Therapeutics, Georgia
State University, Atlanta, Georgia 30302-3965, United States
| |
Collapse
|
2
|
Moni BM, Quaye JA, Gadda G. Mutation of a distal gating residue modulates NADH binding in NADH:Quinone oxidoreductase from Pseudomonas aeruginosa PAO1. J Biol Chem 2023; 299:103044. [PMID: 36803963 PMCID: PMC10033279 DOI: 10.1016/j.jbc.2023.103044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/07/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023] Open
Abstract
Enzymes require flexible regions to adopt multiple conformations during catalysis. The mobile regions of enzymes include gates that modulate the passage of molecules in and out of the enzyme's active site. The enzyme PA1024 from Pseudomonas aeruginosa PA01 is a recently discovered flavin-dependent NADH:quinone oxidoreductase (NQO, EC 1.6.5.9). Q80 in loop 3 (residues 75-86) of NQO is ∼15 Å away from the flavin and creates a gate that seals the active site through a hydrogen bond with Y261 upon NADH binding. In this study, we mutated Q80 to glycine, leucine, or glutamate to investigate the mechanistic significance of distal residue Q80 in NADH binding in the active site of NQO. The UV-visible absorption spectrum reveals that the mutation of Q80 minimally affects the protein microenvironment surrounding the flavin. The anaerobic reductive half-reaction of the NQO-mutants yields a ≥25-fold increase in the Kd value for NADH compared to the WT enzyme. However, we determined that the kred value was similar in the Q80G, Q80L, and wildtype enzymes and only ∼25% smaller in the Q80E enzyme. Steady-state kinetics with NQO-mutants and NQO-WT at varying concentrations of NADH and 1,4-benzoquinone establish a ≤5-fold decrease in the kcat/KNADH value. Moreover, there is no significant difference in the kcat/KBQ (∼1 × 106 M-1s-1) and kcat (∼24 s-1) values in NQO-mutants and NQO-WT. These results are consistent with the distal residue Q80 being mechanistically essential for NADH binding to NQO with minimal effect on the quinone binding to the enzyme and hydride transfer from NADH to flavin.
Collapse
Affiliation(s)
- Bilkis Mehrin Moni
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA
| | - Joanna A Quaye
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA
| | - Giovanni Gadda
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA; Department of Biology, Georgia State University, Atlanta, Georgia, USA; The Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia, USA.
| |
Collapse
|
3
|
Rabbani G, Ahmad E, Ahmad A, Khan RH. Structural features, temperature adaptation and industrial applications of microbial lipases from psychrophilic, mesophilic and thermophilic origins. Int J Biol Macromol 2023; 225:822-839. [PMID: 36402388 DOI: 10.1016/j.ijbiomac.2022.11.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
Microbial lipases are very prominent biocatalysts because of their ability to catalyze a wide variety of reactions in aqueous and non-aqueous media. Here microbial lipases from different origins (psychrophiles, mesophiles, and thermophiles) have been reviewed. This review emphasizes an update of structural diversity in temperature adaptation and industrial applications, of psychrophilic, mesophilic, and thermophilic lipases. The microbial origins of lipases are logically dynamic, proficient, and also have an extensive range of industrial uses with the manufacturing of altered molecules. It is therefore of interest to understand the molecular mechanisms of adaptation to temperature in occurring lipases. However, lipases from extremophiles (psychrophiles, and thermophiles) are widely used to design biotransformation reactions with higher yields, fewer byproducts, or useful side products and have been predicted to catalyze those reactions also, which otherwise are not possible with the mesophilic lipases. Lipases as a multipurpose biological catalyst have given a favorable vision in meeting the needs of several industries such as biodiesel, foods, and drinks, leather, textile, detergents, pharmaceuticals, and medicals.
Collapse
Affiliation(s)
- Gulam Rabbani
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202 002, India; Department of Medical Biotechnology, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
| | - Ejaz Ahmad
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, United States of America
| | - Abrar Ahmad
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202 002, India.
| |
Collapse
|
4
|
Chen G, Khan IM, He W, Li Y, Jin P, Campanella OH, Zhang H, Huo Y, Chen Y, Yang H, Miao M. Rebuilding the lid region from conformational and dynamic features to engineering applications of lipase in foods: Current status and future prospects. Compr Rev Food Sci Food Saf 2022; 21:2688-2714. [PMID: 35470946 DOI: 10.1111/1541-4337.12965] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/17/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023]
Abstract
The applications of lipases in esterification, amidation, and transesterification have broadened their potential in the production of fine compounds with high cumulative values. Mostly, the catalytic triad of lipases is covered by either one or two mobile peptides called the "lid" that control the substrate channel to the catalytic center. The lid holds unique conformational allostery via interfacial activation to regulate the dynamics and catalytic functions of lipases, thereby highlighting its importance in redesigning these enzymes for industrial applications. The structural characteristic of lipase, the dynamics of lids, and the roles of lid in lipase catalysis were summarized, providing opportunities for rebuilding lid region by biotechniques (e.g., metagenomic technology and protein engineering) and enzyme immobilization. The review focused on the advantages and disadvantages of strategies rebuilding the lid region. The main shortcomings of biotechnologies on lid rebuilding were discussed such as negative effects on lipase (e.g., a decrease of activity). Additionally, the main shortcomings (e.g., enzyme desorption at high temperatre) in immobilization on hydrophobic supports via interfacial action were presented. Solutions to the mentioned problems were proposed by combinations of computational design with biotechnologies, and improvements of lipase immobilization (e.g., immobilization protocols and support design). Finally, the review provides future perspectives about designing hyperfunctional lipases as biocatalysts in the food industry based on lid conformation and dynamics.
Collapse
Affiliation(s)
- Gang Chen
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China.,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Imran Mahmood Khan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wensen He
- School of Food Science and Technology, Jiangsu University, Zhenjiang, China
| | - Yongxin Li
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China
| | - Peng Jin
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China
| | - Osvaldo H Campanella
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Food Science and Technology, Ohio State University, Columbus, Ohio, USA
| | - Haihua Zhang
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China
| | - Yanrong Huo
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China
| | - Yang Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Huqing Yang
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou, China
| | - Ming Miao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| |
Collapse
|
5
|
Zhang K, Bai Y, Gong Z, Zhao Z, Li B, Wu W. Surface Properties and Denitrification Performance of Impurity-Removed Rare Earth Concentrate. MATERIALS 2020; 13:ma13030580. [PMID: 31991899 PMCID: PMC7040803 DOI: 10.3390/ma13030580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/25/2022]
Abstract
Acid leaching and alkali roasting were used to remove impurities such as Ca and Si in Baiyun Obo rare earth concentrate. The effects of acid–base treatment on the physical and chemical properties of the samples were analyzed by scanning electron microscopy, X-ray diffraction, Brunauer–Emmett–Teller characterization, X-ray photoelectron spectroscopy, H2-temperature-programmed reduction, NH3-temperature-programmed desorption (TPD), and NO-TPD. Results showed that the content of Ce7O12 in the rare earth concentrates increased and the dispersion was uniform. The grains became smaller, the specific surface area of rare earth concentrates increased, and the active sites were more exposed. Ce coexisted in the form of Ce3+ and Ce4+, whereas Fe coexisted in the form of Fe3+ and Fe2+. The content of Fe3+ was increased. The acid–base-treated rare earth concentrates had a denitration efficiency of 87.4% at a reaction temperature of 400 °C.
Collapse
Affiliation(s)
- Kai Zhang
- College of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou 014000, Inner Mongolia, China; (K.Z.); (Y.B.); (Z.G.); (B.L.)
| | - Yuze Bai
- College of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou 014000, Inner Mongolia, China; (K.Z.); (Y.B.); (Z.G.); (B.L.)
| | - Zhijun Gong
- College of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou 014000, Inner Mongolia, China; (K.Z.); (Y.B.); (Z.G.); (B.L.)
- Key Lab Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Baotou 014000, Inner Mongolia, China;
| | - Zengwu Zhao
- Key Lab Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Baotou 014000, Inner Mongolia, China;
| | - Baowei Li
- College of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou 014000, Inner Mongolia, China; (K.Z.); (Y.B.); (Z.G.); (B.L.)
| | - Wenfei Wu
- College of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou 014000, Inner Mongolia, China; (K.Z.); (Y.B.); (Z.G.); (B.L.)
- Key Lab Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Baotou 014000, Inner Mongolia, China;
- Correspondence: ; Tel./Fax: +86-04725951567
| |
Collapse
|
6
|
Godoy CA, Klett J, Di Geronimo B, Hermoso JA, Guisán JM, Carrasco-López C. Disulfide Engineered Lipase to Enhance the Catalytic Activity: A Structure-Based Approach on BTL2. Int J Mol Sci 2019; 20:ijms20215245. [PMID: 31652673 PMCID: PMC6862113 DOI: 10.3390/ijms20215245] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/16/2019] [Accepted: 09/23/2019] [Indexed: 12/15/2022] Open
Abstract
Enhancement, control, and tuning of hydrolytic activity and specificity of lipases are major goals for the industry. Thermoalkaliphilic lipases from the I.5 family, with their native advantages such as high thermostability and tolerance to alkaline pHs, are a target for biotechnological applications. Although several strategies have been applied to increase lipases activity, the enhancement through protein engineering without compromising other capabilities is still elusive. Lipases from the I.5 family suffer a unique and delicate double lid restructuration to transition from a closed and inactive state to their open and enzymatically active conformation. In order to increase the activity of the wild type Geobacillus thermocatenulatus lipase 2 (BTL2) we rationally designed, based on its tridimensional structure, a mutant (ccBTL2) capable of forming a disulfide bond to lock the open state. ccBTL2 was generated replacing A191 and F206 to cysteine residues while both wild type C64 and C295 were mutated to serine. A covalently immobilized ccBTL2 showed a 3.5-fold increment in esterase activity with 0.1% Triton X-100 (2336 IU mg−1) and up to 6.0-fold higher with 0.01% CTAB (778 IU mg−1), both in the presence of oxidizing sulfhydryl agents, when compared to BTL2. The remarkable and industrially desired features of BTL2 such as optimal alkaliphilic pH and high thermal stability were not affected. The designed disulfide bond also conferred reversibility to the enhancement, as the increment on activity observed for ccBTL2 was controlled by redox pretreatments. MD simulations suggested that the most stable conformation for ccBTL2 (with the disulfide bond formed) was, as we predicted, similar to the open and active conformation of this lipase.
Collapse
Affiliation(s)
- César A Godoy
- Departamento de Química (LIBB), Grupo de Investigación en Ingeniería de los Procesos Agroalimentarios y Biotecnológicos (GIPAB), Universidad del Valle, C.P. 76001 Cali, Colombia.
| | - Javier Klett
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain.
| | - Bruno Di Geronimo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain.
| | - Juan A Hermoso
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry "Rocasolano" (IQFR-CSIC), E_28006 Madrid, Spain.
| | - José M Guisán
- Departamento de Biocatálisis. Instituto de Catálisis. CSIC. Campus UAM. Cantoblanco. C.P. 28049 Madrid, Spain.
| | - César Carrasco-López
- Department of Chemical and Biological Engineering, Hoyt Laboratory, Princeton University, Princeton, NJ 08544, USA.
| |
Collapse
|
7
|
Ding X, Zheng RC, Tang XL, Zheng YG. Engineering of Talaromyces thermophilus lipase by altering its crevice-like binding site for highly efficient biocatalytic synthesis of chiral intermediate of Pregablin. Bioorg Chem 2018; 77:330-338. [DOI: 10.1016/j.bioorg.2018.01.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 02/02/2023]
|
8
|
Gao B, Jiang S, Wang L, Zhang L, Wei D. Energy and conformation determine the enantioselectivity of enzyme. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Khan FI, Lan D, Durrani R, Huan W, Zhao Z, Wang Y. The Lid Domain in Lipases: Structural and Functional Determinant of Enzymatic Properties. Front Bioeng Biotechnol 2017; 5:16. [PMID: 28337436 PMCID: PMC5343024 DOI: 10.3389/fbioe.2017.00016] [Citation(s) in RCA: 209] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/22/2017] [Indexed: 01/08/2023] Open
Abstract
Lipases are important industrial enzymes. Most of the lipases operate at lipid–water interfaces enabled by a mobile lid domain located over the active site. Lid protects the active site and hence responsible for catalytic activity. In pure aqueous media, the lid is predominantly closed, whereas in the presence of a hydrophobic layer, it is partially opened. Hence, the lid controls the enzyme activity. In the present review, we have classified lipases into different groups based on the structure of lid domains. It has been observed that thermostable lipases contain larger lid domains with two or more helices, whereas mesophilic lipases tend to have smaller lids in the form of a loop or a helix. Recent developments in lipase engineering addressing the lid regions are critically reviewed here. After on, the dramatic changes in substrate selectivity, activity, and thermostability have been reported. Furthermore, improved computational models can now rationalize these observations by relating it to the mobility of the lid domain. In this contribution, we summarized and critically evaluated the most recent developments in experimental and computational research on lipase lids.
Collapse
Affiliation(s)
- Faez Iqbal Khan
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China; School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, China
| | - Dongming Lan
- School of Food Science and Engineering, South China University of Technology , Guangzhou , China
| | - Rabia Durrani
- School of Bioscience and Bioengineering, South China University of Technology , Guangzhou , China
| | - Weiqian Huan
- School of Bioscience and Bioengineering, South China University of Technology , Guangzhou , China
| | - Zexin Zhao
- School of Bioscience and Bioengineering, South China University of Technology , Guangzhou , China
| | - Yonghua Wang
- School of Food Science and Engineering, South China University of Technology , Guangzhou , China
| |
Collapse
|
10
|
Escorcia AM, Sen K, Daza MC, Doerr M, Thiel W. Quantum Mechanics/Molecular Mechanics Insights into the Enantioselectivity of the O-Acetylation of (R,S)-Propranolol Catalyzed by Candida antarctica Lipase B. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02310] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Andrés M. Escorcia
- Grupo
de Bioquímica Teórica, Universidad Industrial de Santander, Cra 27 Calle 9, Bucaramanga, Colombia
| | - Kakali Sen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Martha C. Daza
- Grupo
de Bioquímica Teórica, Universidad Industrial de Santander, Cra 27 Calle 9, Bucaramanga, Colombia
| | - Markus Doerr
- Grupo
de Bioquímica Teórica, Universidad Industrial de Santander, Cra 27 Calle 9, Bucaramanga, Colombia
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| |
Collapse
|
11
|
Wikmark Y, Engelmark Cassimjee K, Lihammar R, Bäckvall JE. Removing the Active-Site Flap in Lipase A fromCandida antarcticaProduces a Functional Enzyme without Interfacial Activation. Chembiochem 2015; 17:141-5. [DOI: 10.1002/cbic.201500471] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Ylva Wikmark
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Karim Engelmark Cassimjee
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Richard Lihammar
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Jan-E. Bäckvall
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| |
Collapse
|
12
|
Tang T, Yuan C, Hwang H, Zhao X, Ramkrishna D, Liu D, Varma A. Engineering surface hydrophobicity improves activity of
Bacillus thermocatenulatus
lipase 2 enzyme. Biotechnol J 2015; 10:1762-9. [PMID: 26097135 DOI: 10.1002/biot.201500011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/12/2015] [Accepted: 06/10/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Ting Tang
- Department of Chemical Engineering, Institute of Applied Chemistry, Tsinghua University, Beijing, China
| | - Chongli Yuan
- School of Chemical Engineering, Purdue University, West Lafayette, IN, USA
| | - Hyun‐Tae Hwang
- School of Chemical Engineering, Purdue University, West Lafayette, IN, USA
| | - Xuebing Zhao
- Department of Chemical Engineering, Institute of Applied Chemistry, Tsinghua University, Beijing, China
| | | | - Dehua Liu
- Department of Chemical Engineering, Institute of Applied Chemistry, Tsinghua University, Beijing, China
| | - Arvind Varma
- School of Chemical Engineering, Purdue University, West Lafayette, IN, USA
| |
Collapse
|
13
|
Molecular and functional diversity of yeast and fungal lipases: Their role in biotechnology and cellular physiology. Prog Lipid Res 2015; 57:40-54. [DOI: 10.1016/j.plipres.2014.12.001] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 09/30/2014] [Accepted: 12/18/2014] [Indexed: 01/12/2023]
|
14
|
Wang D, Ni K, Ren Y, Wei D. Site-directed modification of genetically engineered Proteus sp. lipase K107 variants with a polyethylene glycol derivative. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2014.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
15
|
Structure, mechanism, and enantioselectivity shifting of lipase LipK107 with a simple way. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2014; 1844:1183-92. [DOI: 10.1016/j.bbapap.2014.02.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/16/2014] [Accepted: 02/24/2014] [Indexed: 11/18/2022]
|
16
|
Engineering of Yarrowia lipolytica lipase Lip8p by circular permutation to alter substrate and temperature characteristics. ACTA ACUST UNITED AC 2014; 41:757-62. [DOI: 10.1007/s10295-014-1428-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 02/25/2014] [Indexed: 10/25/2022]
Abstract
Abstract
Applications of lipases are mainly based on their catalytic efficiency and substrate specificity. In this study, circular permutation (CP), an unconventional protein engineering technique, was employed to acquire active mutants of Yarrowia lipolytica lipase Lip8p. A total of 21 mutant lipases exhibited significant shifts in substrate specificity. Cp128, the most active enzyme mutant, showed higher catalytic activity (14.5-fold) and higher affinity (4.6-fold) (decreased K m) to p-nitrophenyl-myristate (pNP-C14) than wild type (WT). Based on the three-dimensional (3D) structure model of the Lip8p, we found that most of the functional mutation occurred in the surface-exposed loop region in close proximity to the lid domain (S112–F122), which implies the steric effect of the lid on lipase activity and substrate specificity. The temperature properties of Cp128 were also investigated. In contrast to the optimal temperature of 45 °C for the WT enzyme, Cp128 exhibited the maximal activity at 37 °C. But it is noteworthy that there is no change in thermostability.
Collapse
|
17
|
Escorcia AM, Molina D, Daza MC, Doerr M. Acetylation of (R,S)-propranolol catalyzed by Candida antarctica lipase B: An experimental and computational study. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
18
|
Zhang JH, Jiang YY, Lin Y, Sun YF, Zheng SP, Han SY. Structure-guided modification of Rhizomucor miehei lipase for production of structured lipids. PLoS One 2013; 8:e67892. [PMID: 23844120 PMCID: PMC3700896 DOI: 10.1371/journal.pone.0067892] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 05/22/2013] [Indexed: 11/25/2022] Open
Abstract
To improve the performance of yeast surface-displayed Rhizomucor miehei lipase (RML) in the production of human milk fat substitute (HMFS), we mutated amino acids in the lipase substrate-binding pocket based on protein hydrophobicity, to improve esterification activity. Five mutants: Asn87Ile, Asn87Ile/Asp91Val, His108Leu/Lys109Ile, Asp256Ile/His257Leu, and His108Leu/Lys109Ile/Asp256Ile/His257Leu were obtained and their hydrolytic and esterification activities were assayed. Using Discovery Studio 3.1 to build models and calculate the binding energy between lipase and substrates, compared to wild-type, the mutant Asp256Ile/His257Leu was found to have significantly lower energy when oleic acid (3.97 KJ/mol decrease) and tripalmitin (7.55 KJ/mol decrease) were substrates. This result was in accordance with the esterification activity of Asp256Ile/His257Leu (2.37-fold of wild-type). The four mutants were also evaluated for the production of HMFS in organic solvent and in a solvent-free system. Asp256Ile/His257Leu had an oleic acid incorporation of 28.27% for catalyzing tripalmitin and oleic acid, and 53.18% for the reaction of palm oil with oleic acid. The efficiency of Asp256Ile/His257Leu was 1.82-fold and 1.65-fold that of the wild-type enzyme for the two reactions. The oleic acid incorporation of Asp256Ile/His257Leu was similar to commercial Lipozyme RM IM for palm oil acidolysis with oleic acid. Yeast surface-displayed RML mutant Asp256Ile/His257Leu is a potential, economically feasible catalyst for the production of structured lipids.
Collapse
Affiliation(s)
- Jun-Hui Zhang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
| | - Yu-Yan Jiang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
| | - Ying Lin
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
| | - Yu-Fei Sun
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
| | - Sui-Ping Zheng
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
| | - Shuang-Yan Han
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, P. R. China
- * E-mail:
| |
Collapse
|
19
|
Crystal structure of Proteus mirabilis lipase, a novel lipase from the Proteus/psychrophilic subfamily of lipase family I.1. PLoS One 2012; 7:e52890. [PMID: 23300806 PMCID: PMC3530535 DOI: 10.1371/journal.pone.0052890] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 11/23/2012] [Indexed: 12/29/2022] Open
Abstract
Bacterial lipases from family I.1 and I.2 catalyze the hydrolysis of triacylglycerol between 25-45°C and are used extensively as biocatalysts. The lipase from Proteus mirabilis belongs to the Proteus/psychrophilic subfamily of lipase family I.1 and is a promising catalyst for biodiesel production because it can tolerate high amounts of water in the reaction. Here we present the crystal structure of the Proteus mirabilis lipase, a member of the Proteus/psychrophilic subfamily of I.1lipases. The structure of the Proteus mirabilis lipase was solved in the absence and presence of a bound phosphonate inhibitor. Unexpectedly, both the apo and inhibitor bound forms of P. mirabilis lipase were found to be in a closed conformation. The structure reveals a unique oxyanion hole and a wide active site that is solvent accessible even in the closed conformation. A distinct mechanism for Ca²⁺ coordination may explain how these lipases can fold without specific chaperones.
Collapse
|
20
|
Construction of a whole-cell catalyst displaying a fungal lipase for effective treatment of oily wastewaters. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.04.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
21
|
Substitution of Asp189 residue alters the activity and thermostability of Geobacillus sp. NTU 03 lipase. Biotechnol Lett 2011; 33:1841-6. [DOI: 10.1007/s10529-011-0635-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 04/19/2011] [Indexed: 11/26/2022]
|