Putative hAPN receptor binding sites in SARS_CoV spike protein.
نویسندگان
چکیده
AIM To obtain the information of ligand-receptor binding between the S protein of SARS-CoV and CD13, identify the possible interacting domains or motifs related to binding sites, and provide clues for studying the functions of SARS proteins and designing anti-SARS drugs and vaccines. METHODS On the basis of comparative genomics, the homology search, phylogenetic analyses, and multi-sequence alignment were used to predict CD13 related interacting domains and binding sites in the S protein of SARS-CoV. Molecular modeling and docking simulation methods were employed to address the interaction feature between CD13 and S protein of SARS-CoV in validating the bioinformatics predictions. RESULTS Possible binding sites in the SARS-CoV S protein to CD13 have been mapped out by using bioinformatics analysis tools. The binding for one protein-protein interaction pair (D757-R761 motif of the SARS-CoV S protein to P585-A653 domain of CD13) has been simulated by molecular modeling and docking simulation methods. CONCLUSION CD13 may be a possible receptor of the SARS-CoV S protein, which may be associated with the SARS infection. This study also provides a possible strategy for mapping the possible binding receptors of the proteins in a genome.
منابع مشابه
Identification of a receptor-binding domain of the spike glycoprotein of human coronavirus HCoV-229E.
Human coronavirus HCoV-229E uses human aminopeptidase N (hAPN) as its receptor (C. L. Yeager et al., Nature 357:420-422, 1992). To identify the receptor-binding domain of the viral spike glycoprotein (S), we expressed soluble truncated histidine-tagged S glycoproteins by using baculovirus expression vectors. Truncated S proteins purified by nickel affinity chromatography were shown to be glycos...
متن کاملHuman Coronavirus 229E: Receptor Binding Domain and Neutralization by Soluble Receptor at 37°C
Human coronaviruses HCoV-229E in serogroup I and HCoV-OC43 in serogroup II are, after rhinoviruses, the second most important cause of the common cold (7, 13). The first step in HCoV-229E infection is binding of the trimeric 200kDa viral spike glycoprotein (S) to human aminopeptidase N (hAPN, CD13) on human cells (26). The three-dimensional structures of the spike glycoproteins of the plus-stra...
متن کاملPutative Binding Sites of Dopamine and Arachidonoyl Dopamine to Beta-lactoglobulin: A Molecular Docking and Molecular Dynamics Study
Because of participation in many aspects of human life, and due to oxidation-sensitive characteristics of dopamine (DA) and arachidonoyl dopamine (AA-DA), the necessity of biocompatible carrier to keep them against oxidation is of importance. In this work, we explored the putative binding sites of DA and AA-DA to -lactoglobulin (BLG) as potent carrier. Docking results identified the binding si...
متن کاملP-30: The Effect of The T26248G Polymorphism on Putative MethyltransferaseNsun7 Protein Function and Its Role in Male Infertility
Background: Male infertility has many causes, including genetic infertility. The NOP2/Sun domain family, member7 (Nsun7) gene, which encodes putative methyltransferase Nsun7, has a role in sperm motility. The aim of the present study was to investigate the effect of the T26248G polymorphism on Nsun7 protein function and its role in male infertility. Materials and Methods: Semen samples were col...
متن کاملThe evil role of spike in the coronaviruses: structure, function and evolution
1. Lu R, Zhao X, Li J, et al (2020) Genomic characterisation and epidemiology of 2019 novel coronavirus: implications for virus origins and receptor binding. Lancet 395:565–574 2. Zhou P, Tachedjian M, Wynne JW, et al (2016) Contraction of the type i IFN locus and unusual constitutive expression of IFN-α in bats. Proc Natl Acad Sci U S A 113:2696–2701 . doi: 10.1073/pnas.1518240113 3. Wu A, P...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Acta pharmacologica Sinica
دوره 24 6 شماره
صفحات -
تاریخ انتشار 2003