1
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Kawai A, Yamasaki K, Otagiri M, Doi Y. Interaction of Cephalosporins with Human Serum Albumin: A Structural Study. J Med Chem 2024; 67:14175-14183. [PMID: 39083648 DOI: 10.1021/acs.jmedchem.4c00983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Modification of the R1 and R2 side chain structures has been used as the main strategy to expand the spectrum of cephalosporins and impart resistance to hydrolysis by β-lactamases. These structural modifications also result in a wide range of plasma protein binding, especially with human serum albumin (HSA). Here, we determined the crystal structures of the HSA complexes with two clinically important cephalosporins, ceftriaxone and cefazolin, and evaluated the binding of cephalosporin to HSA by susceptibility testing and competitive binding assay. Ceftriaxone and cefazolin bind to subdomain IB of HSA, and their cephem core structures are recognized by Arg117 of HSA. Tyr161 of HSA changes its rotamer depending on the cephalosporin, resulting in alterations of the cavity shape occupied by the R2 side chain of cephalosporins. These findings provide structural insight into the mechanisms underlying the HSA binding of cephalosporins.
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Affiliation(s)
- Akito Kawai
- Department of Microbiology, Fujita Health University School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Center for Infectious Disease Research, Fujita Health University, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1, Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Yohei Doi
- Department of Microbiology, Fujita Health University School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Center for Infectious Disease Research, Fujita Health University, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Department of Infectious Diseases, Fujita Health University School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, 3550 Terrace Street, S829 Scaife Hall, Pittsburgh, Pennsylvania 15261, United States
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2
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Ashraf S, Qaiser H, Tariq S, Khalid A, Makeen HA, Alhazmi HA, Ul-Haq Z. Unraveling the versatility of human serum albumin - A comprehensive review of its biological significance and therapeutic potential. Curr Res Struct Biol 2023; 6:100114. [PMID: 38111902 PMCID: PMC10726258 DOI: 10.1016/j.crstbi.2023.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/20/2023] Open
Abstract
Human serum albumin (HSA) is a multi-domain macromolecule with diverse ligand binding capability because of its ability to allow allosteric modulation despite being a monomeric protein. Physiologically, HSA act as the primary carrier for various exogenous and endogenous compounds and fatty acids, and alter the pharmacokinetic properties of several drugs. It has antioxidant properties and is utilized therapeutically to improve the drug delivery of pharmacological agents for the treatment of several disorders. The flexibility of albumin in holding various types of drugs coupled with a variety of modifications makes this protein a versatile drug carrier with incalculable potential in therapeutics. This review provides a brief outline of the different structural properties of HSA, and its various binding sites, moreover, an overview of the genetic, biomedical, and allosteric modulation of drugs and drug delivery aspects of HSA is also included, which may be helpful in guiding advanced clinical applications and further research on the therapeutic potential of this extraordinary protein.
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Affiliation(s)
- Sajda Ashraf
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Hina Qaiser
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Sumayya Tariq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Medicinal and Aromatic Plants Research Institute, National Center for Research, P.O. Box: 2424, Khartoum, 11111, Sudan
| | - Hafiz A. Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A. Alhazmi
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, 45142, Jazan, Saudi Arabia
| | - Zaheer Ul-Haq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
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3
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Wang Y, Luo Z, Morelli X, Xu P, Jiang L, Shi X, Huang M. Crystal structures of human serum albumin in complex with lysophosphatidylcholine. Biophys J 2023; 122:4135-4143. [PMID: 37731243 PMCID: PMC10645546 DOI: 10.1016/j.bpj.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023] Open
Abstract
Lysophospholipids (lysoPLs) are crucial metabolites involved in various physiological and pathological cellular processes. Understanding their binding interactions, particularly with human serum albumin (HSA), is essential due to their role in regulating lysoPLs-induced cytotoxicity. However, the precise mechanism of lysoPLs binding to HSA remains elusive. In this study, we employed fluorescence quenching and optical interferometry assays to demonstrate direct binding between lysophosphatidylcholine (LPC) and HSA (KD = 25 μM). Furthermore, we determined crystal structures of HSA in complex with LPC, both in the absence and the presence of the endogenous fatty acid myristate (14:0). The crystal structure of binary HSA:LPC revealed that six LPC molecules are bound to HSA at the primary fatty acid binding sites. Interestingly, the ternary HSA:Myr:LPC structure demonstrated the continued binding of three LPC molecules to HSA at binding sites 1, 3, and 5 in the presence of myristate. These findings support HSA's role as a carrier protein for lysoPLs in blood plasma and provide valuable insights into the structural basis of their binding mechanisms.
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Affiliation(s)
- Yu Wang
- College of Chemistry, Fuzhou University, Fuzhou, China; Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | | | - Xavier Morelli
- CRCM, CNRS, INSERM, Institut Paoli-Calmettes, University Aix-Marseill1715e, Marseille, France
| | - Peng Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | | | - Xiaoli Shi
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China.
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4
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Wu D, Gucwa M, Czub MP, Cooper DR, Shabalin IG, Fritzen R, Arya S, Schwarz-Linek U, Blindauer CA, Minor W, Stewart AJ. Structural and biochemical characterisation of Co 2+-binding sites on serum albumins and their interplay with fatty acids. Chem Sci 2023; 14:6244-6258. [PMID: 37325156 PMCID: PMC10266443 DOI: 10.1039/d3sc01723k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/08/2023] [Indexed: 06/17/2023] Open
Abstract
Serum albumin-Co2+ interactions are of clinical importance. They play a role in mediating the physiological effects associated with cobalt toxicity and are central to the albumin cobalt binding (ACB) assay for diagnosis of myocardial ischemia. To further understand these processes, a deeper understanding of albumin-Co2+ interactions is required. Here, we present the first crystallographic structures of human serum albumin (HSA; three structures) and equine serum albumin (ESA; one structure) in complex with Co2+. Amongst a total of sixteen sites bearing a cobalt ion across the structures, two locations were prominent, and they relate to metal-binding sites A and B. Site-directed mutagenesis and isothermal titration calorimetry (ITC) were employed to characterise sites on HSA. The results indicate that His9 and His67 contribute to the primary (putatively corresponding to site B) and secondary Co2+-binding sites (site A), respectively. The presence of additional multiple weak-affinity Co2+ binding sites on HSA was also supported by ITC studies. Furthermore, addition of 5 molar equivalents of the non-esterified fatty acid palmitate (C16:0) reduced the Co2+-binding affinity at both sites A and B. The presence of bound myristate (C14:0) in the HSA crystal structures provided insight into the fatty acid-mediated structural changes that diminish the affinity of the protein toward Co2+. Together, these data provide further support for the idea that ischemia-modified albumin corresponds to albumin with excessive fatty-acid loading. Collectively, our findings provide a comprehensive understanding of the molecular underpinnings governing Co2+ binding to serum albumin.
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Affiliation(s)
- Dongmei Wu
- School of Medicine, University of St Andrews St Andrews UK +44 (0)1334 463546
| | - Michal Gucwa
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine Charlottesville VA 22908-0736 USA +1 434-243-6865
- Doctoral School of Exact and Natural Sciences, Jagiellonian University Krakow Poland
| | - Mateusz P Czub
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine Charlottesville VA 22908-0736 USA +1 434-243-6865
| | - David R Cooper
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine Charlottesville VA 22908-0736 USA +1 434-243-6865
| | - Ivan G Shabalin
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine Charlottesville VA 22908-0736 USA +1 434-243-6865
| | - Remi Fritzen
- School of Medicine, University of St Andrews St Andrews UK +44 (0)1334 463546
| | - Swati Arya
- School of Medicine, University of St Andrews St Andrews UK +44 (0)1334 463546
| | | | | | - Wladek Minor
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine Charlottesville VA 22908-0736 USA +1 434-243-6865
| | - Alan J Stewart
- School of Medicine, University of St Andrews St Andrews UK +44 (0)1334 463546
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5
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Kitakaze K, Ali H, Kimoto R, Takenouchi Y, Ishimaru H, Yamashita A, Ueda N, Tanaka T, Okamoto Y, Tsuboi K. GDE7 produces cyclic phosphatidic acid in the ER lumen functioning as a lysophospholipid mediator. Commun Biol 2023; 6:524. [PMID: 37193762 PMCID: PMC10188492 DOI: 10.1038/s42003-023-04900-4] [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: 10/10/2022] [Accepted: 05/02/2023] [Indexed: 05/18/2023] Open
Abstract
Cyclic phosphatidic acid (cPA) is a lipid mediator, which regulates adipogenic differentiation and glucose homeostasis by suppressing nuclear peroxisome proliferator-activated receptor γ (PPARγ). Glycerophosphodiesterase 7 (GDE7) is a Ca2+-dependent lysophospholipase D that localizes in the endoplasmic reticulum. Although mouse GDE7 catalyzes cPA production in a cell-free system, it is unknown whether GDE7 generates cPA in living cells. Here, we demonstrate that human GDE7 possesses cPA-producing activity in living cells as well as in a cell-free system. Furthermore, the active site of human GDE7 is directed towards the luminal side of the endoplasmic reticulum. Mutagenesis revealed that amino acid residues F227 and Y238 are important for catalytic activity. GDE7 suppresses the PPARγ pathway in human mammary MCF-7 and mouse preadipocyte 3T3-L1 cells, suggesting that cPA functions as an intracellular lipid mediator. These findings lead to a better understanding of the biological role of GDE7 and its product, cPA.
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Affiliation(s)
- Keisuke Kitakaze
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
| | - Hanif Ali
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
| | - Raiki Kimoto
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan
- Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhiro Takenouchi
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Hironobu Ishimaru
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Atsushi Yamashita
- Laboratory of Biological Chemistry, Faculty of Pharma-Science, Teikyo University, Tokyo, Japan
| | - Natsuo Ueda
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa, Japan
| | - Tamotsu Tanaka
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
| | - Yasuo Okamoto
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Kazuhito Tsuboi
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
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6
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Li J, Wan H, Zhang H, Wang XL, Liu G, Wu G, He X, Deng Z, Zhao YL. Molecular recognition between bacterial phosphorothioate DNA and sulfur-binding domain (SBD): competition between the water cage and chalcogen-hydrophobic packet. Phys Chem Chem Phys 2022; 24:9176-9187. [PMID: 35383346 DOI: 10.1039/d2cp00291d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bacterial DNA phosphorothioation (PT) physiologically and stereo-specifically replaces a non-bridging oxygen in a phosphate link with a sulfur atom, which can be recognized by a highly conserved sulfur-binding domain (SBD). Here we conducted thermodynamic integration (TI), molecular dynamics simulation, and quantum chemical calculations to decipher the specific molecular interactions between PT-DNA and SBD in Streptomyces coelicolor type IV restriction enzyme ScoMcrA. The TI-calculated binding affinity of (5'-CCGRp-PSGCCGG-3')2 is larger than that of (5'-CCGGCCGG-3')2 by about 7.4-7.7 kcal mol-1. The binding difference dominantly stems from hydration energy of non-phosphorothioate DNA (9.8-10.6 kcal mol-1) in aqueous solution, despite the persistent preference of 2.6-3.2 kcal mol-1 in the DNA-SBD MD simulations. Furthermore, the quantum chemical calculations reveal an unusual non-covalent interaction in the phosphorothioate-binding scenario, where the PS⋯NP165 chalcogen bond prevails the PS⋯HCβ vdW interactions from the adjacent residues H116-R117-Y164-P165-A168. Thus, the chalcogen-hydrophobic interaction pulls PT-DNA into the SBD binding pocket while the water cage pulls a normal DNA molecule out. The synergetic mechanism suggests the special roles of the proline pyrrolidine group in the SBD proteins, consistent with the experimental observations in the X-ray crystallography and structural bioinformatics analysis.
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Affiliation(s)
- Jiayi Li
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Haibo Wan
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Haoqing Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Xiao-Lei Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Geng Wu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Xinyi He
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yi-Lei Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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7
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Park J, Kim MS, Park T, Kim YH, Shin DH. Crystal structure of pharmaceutical-grade human serum albumin. Int J Biol Macromol 2020; 166:221-228. [PMID: 33190823 DOI: 10.1016/j.ijbiomac.2020.10.152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/13/2020] [Accepted: 10/20/2020] [Indexed: 01/08/2023]
Abstract
Human serum albumin (HSA) is the most abundant protein in human plasma and plays versatile biological role. HSA has been widely used to treat several diseases and develop biocompatible biomaterials for biomedical applications. However, pharmaceutical-grade HSA (p-HSA) showed the altered oxidative and ligand-binding properties compare to native HSA. To investigate the influences of the manufacturing process on the molecular state of HSA, we determined the first crystal structure of p-HSA using the commercial HSA solution without any defatting step and further purification and carried out mass spectrometry to identify bound ligands. The crystal structure of p-HSA revealed that medium- and long-chain fatty acids and tryptophan are bound to p-HSA and one free cysteine is oxidized to cysteine-sulfenic acid. The mass spectra of p-HSA also confirmed the existence of fatty acids and tryptophan in p-HSA. Our results enhance understanding of the molecular state of p-HSA and can be utilized to produce p-HSA solutions and HSA-based biomaterials that has a higher biorelevance.
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Affiliation(s)
- Jimin Park
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea; School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea
| | - Taeseong Park
- Biomedical Research Institute, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea
| | - Young Hwan Kim
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea.
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8
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Hazarika Z, Jha AN. Computational Analysis of the Silver Nanoparticle-Human Serum Albumin Complex. ACS OMEGA 2020; 5:170-178. [PMID: 31956763 PMCID: PMC6963898 DOI: 10.1021/acsomega.9b02340] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
Drug delivery in excess concentrations and at not-specified sites inside the human body adversely affects the body and gives rise to other diseases. Several methods have been developed to deliver the drugs in required amounts and at specific targets. Nanoparticle-mediated drug delivery is one such approach and has gained success at primary levels. The effect of nanoparticles on the human body needs important apprehension, and it has been unraveled by assessing the protein-nanoparticle interactions. Here, we have measured the impact of silver nanoparticles (AgNPs) on the human serum albumin (HSA) structure and function with the help of all-atom molecular dynamics simulations (MDS). HSA is a transport protein, and any change in the structure may obstruct its function. The post MD analyses showed that the NP interacts with HSA and the conjugated system got stabilized with time evolution of trajectories. The present investigation confirms that the AgNP interacts with HSA without affecting its tertiary and secondary structures and in turn the protein function as well. AgNP application is recommended in transporting conjugated drug molecules as it has no adverse effect on serum proteins. Since HSA is present in the circulatory system, it may open various applications of AgNPs in the biomedical field.
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9
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Zielinski K, Sekula B, Bujacz A, Szymczak I. Structural investigations of stereoselective profen binding by equine and leporine serum albumins. Chirality 2020; 32:334-344. [PMID: 31905261 DOI: 10.1002/chir.23162] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 12/28/2022]
Abstract
Serum albumin, the most abundant transport protein of mammalian blood, interacts with various nonsteroidal anti-inflammatory drugs (NSAIDs) affecting their disposition, metabolism, and excretion. A big group of chiral NSAIDs transported by albumin, profens, is created by derivatives of 2-arylpropionic acid. The chiral center in the structures of profens is adjacent to the carboxylate moiety and often determines different pharmacological properties of profen enantiomers. This study describes crystal structures of two albumins, isolated from equine and leporine serum, in complexes with three profens: ibuprofen, ketoprofen, and suprofen. Based on three-dimensional structures, the stereoselectivity of albumin is discussed and referred to the previously published albumin complexes with drugs. Drug Site 2 (DS2) of albumin, the bulky hydrophobic pocket of subdomain IIIA with a patch of polar residues, preferentially binds (S)-enantiomers of all investigated profens. Almost identical binding mode of all these drugs clearly indicates the stereoselectivity of DS2 towards (S)-profens in different albumin species. Also, the affinity studies show that DS2 is the major site that presents high affinity towards investigated drugs. Additionally, crystallographic data reveal the secondary binding sites of ketoprofen in leporine serum albumin and ibuprofen in equine serum albumin, both overlapping with previously identified naproxen binding sites: the cleft formed between subdomains IIIA and IIIB close to the fatty acid binding site 5 and the niche created between subdomains IIA and IIIA, called fatty acid site 6.
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Affiliation(s)
- Kamil Zielinski
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Lodz, Poland
| | - Bartosz Sekula
- Synchrotron Radiation Research Section of MCL, National Cancer Institute, Argonne, IL, USA.,Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Lodz, Poland
| | - Anna Bujacz
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Lodz, Poland
| | - Izabela Szymczak
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Lodz, Poland
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10
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Czub MP, Venkataramany BS, Majorek KA, Handing KB, Porebski PJ, Beeram SR, Suh K, Woolfork AG, Hage DS, Shabalin IG, Minor W. Testosterone meets albumin - the molecular mechanism of sex hormone transport by serum albumins. Chem Sci 2019; 10:1607-1618. [PMID: 30842823 PMCID: PMC6371759 DOI: 10.1039/c8sc04397c] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/07/2018] [Indexed: 12/23/2022] Open
Abstract
Serum albumin is the most abundant protein in mammalian blood plasma and is responsible for the transport of metals, drugs, and various metabolites, including hormones. We report the first albumin structure in complex with testosterone, the primary male sex hormone. Testosterone is bound in two sites, neither of which overlaps with the previously suggested Sudlow site I. We determined the binding constant of testosterone to equine and human albumins by two different methods: tryptophan fluorescence quenching and ultrafast affinity extraction. The binding studies and similarities between residues comprising the binding sites on serum albumins suggest that testosterone binds to the same sites on both proteins. Our comparative analysis of albumin complexes with hormones, drugs, and other biologically relevant compounds strongly suggests interference between a number of compounds present in blood and testosterone transport by serum albumin. We discuss a possible link between our findings and some phenomena observed in human patients, such as low testosterone levels in diabetic patients.
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Affiliation(s)
- Mateusz P Czub
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
- Center for Structural Genomics of Infectious Diseases (CSGID) , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA
| | - Barat S Venkataramany
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
| | - Karolina A Majorek
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
| | - Katarzyna B Handing
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
| | - Przemyslaw J Porebski
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
- Center for Structural Genomics of Infectious Diseases (CSGID) , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA
| | - Sandya R Beeram
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , USA .
| | - Kyungah Suh
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , USA .
| | - Ashley G Woolfork
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , USA .
| | - David S Hage
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , USA .
| | - Ivan G Shabalin
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
- Center for Structural Genomics of Infectious Diseases (CSGID) , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA
| | - Wladek Minor
- Department of Molecular Physiology and Biological Physics , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA . ;
- Center for Structural Genomics of Infectious Diseases (CSGID) , University of Virginia , 1340 Jefferson Park Avenue , Charlottesville , VA 22908 , USA
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11
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Molins-Molina O, Lence E, Limones-Herrero D, González-Bello C, Miranda MA, Jiménez MC. Identification of a common recognition center for a photoactive non-steroidal antiinflammatory drug in serum albumins of different species. Org Chem Front 2019. [DOI: 10.1039/c8qo01045e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoreactivity, proteomic and molecular dynamic simulation studies demonstrate the existence of a common recognition center for carprofen in serum albumins of different species, in the interface between subdomains IB and IIIA.
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Affiliation(s)
- Oscar Molins-Molina
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- 46071 Valencia
- Spain
| | - Emilio Lence
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS)
- Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Daniel Limones-Herrero
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- 46071 Valencia
- Spain
| | - Concepción González-Bello
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS)
- Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Miguel A. Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- 46071 Valencia
- Spain
| | - M. Consuelo Jiménez
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- 46071 Valencia
- Spain
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12
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Hussain R, Hughes CS, Jávorfi T, Siligardi G, Williams P, Bonev BB. To Boil an Egg: Substrate Binding Affects Critical Stability in Thermal Unfolding of Proteins. J Phys Chem B 2018; 122:2213-2218. [PMID: 29401389 DOI: 10.1021/acs.jpcb.7b10643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Thermal unfolding of proteins is used extensively in screening of drug candidates because molecular interactions with ligands and substrates affect strongly protein stability, transition temperature, and cooperativity. We use synchrotron radiation circular dichroism to monitor the thermal evolution of secondary structure in proteins as they approach the melting point and the impact of substrate on their thermal behavior. Using Landau free energy expansion, we quantify transition strength and proximity to a critical point through the relative separation τ+ between the transition temperature Tm and the spinodal T+, obtained from the equation of state. The weakest transition was observed in lysozyme with τ+ = -0.0167 followed by holo albumin with τ+ = -0.0208 with the strongest transition in monomeric apo albumin τ+ = -0.0242. A structural transition at 45 °C in apo albumin leads to a noncooperative melt with τ+ = -0.00532 and amyloidogenic increase in beta content.
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Affiliation(s)
- Rohanah Hussain
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Chilton, Didcot, Oxfordshire OX11 0DE, U.K
| | - Charlotte S Hughes
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Chilton, Didcot, Oxfordshire OX11 0DE, U.K
| | - Tamás Jávorfi
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Chilton, Didcot, Oxfordshire OX11 0DE, U.K
| | - Giuliano Siligardi
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Chilton, Didcot, Oxfordshire OX11 0DE, U.K
| | - Paul Williams
- School of Life Sciences, University of Nottingham , Queen's Medical Centre, Nottingham NG7 2UH, U.K
| | - Boyan B Bonev
- School of Life Sciences, University of Nottingham , Queen's Medical Centre, Nottingham NG7 2UH, U.K
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13
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Szekeres GP, Kneipp J. Different binding sites of serum albumins in the protein corona of gold nanoparticles. Analyst 2018; 143:6061-6068. [DOI: 10.1039/c8an01321g] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Binding sites of albumins on gold nanoparticles were characterized by surface-enhanced Raman scattering.
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Affiliation(s)
- Gergo Peter Szekeres
- Humboldt-Universität zu Berlin
- Department of Chemistry
- 12489 Berlin
- Germany
- School of Analytical Sciences Adlershof
| | - Janina Kneipp
- Humboldt-Universität zu Berlin
- Department of Chemistry
- 12489 Berlin
- Germany
- School of Analytical Sciences Adlershof
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14
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Chemically Modified Human Serum Albumin Potently Blocks Entry of Ebola Pseudoviruses and Viruslike Particles. Antimicrob Agents Chemother 2017; 61:AAC.02168-16. [PMID: 28167539 DOI: 10.1128/aac.02168-16] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 01/06/2017] [Indexed: 11/20/2022] Open
Abstract
Ebola virus (EBOV), the causative pathogen of the deadly Ebola virus disease (EVD), can be transmitted via contact with EVD patients, including sexual contact with EVD survivors. At present, no licensed vaccine or therapeutic is available. In this study, we compared eight anhydride-modified proteins for their entry-inhibitory activity against the pseudovirus (PsV) carrying the envelope glycoprotein (GP) of the EBOV Zaire or Sudan species (Zaire PsV and Sudan PsV, respectively). We found that 3-hydroxyphthalic anhydride-modified human serum albumin (HP-HSA) was the most effective in inhibiting the entry of both Zaire PsV and Sudan PsV, with the 50% effective concentration being at the nanomolar level and with HP-HSA being more potent than EBOV-neutralizing antibody MIL77-2 (4G7, a component antibody of the ZMapp drug cocktail). The combination of HP-HSA and MIL77-2 exhibited a synergistic effect. HP-HSA had no obvious in vitro or in vivo toxicity. The EBOV PsV entry-inhibitory activity of HP-HSA remained intact after storage at 45°C for 8 weeks, suggesting that HP-HSA has the potential for worldwide use, including tropical regions in African countries, as either a therapeutic to treat EBOV infection or a prophylactic microbicide to prevent the sexual transmission of EBOV.
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