期刊
PROGRESS IN BIOPHYSICS & MOLECULAR BIOLOGY
卷 161, 期 -, 页码 39-53出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pbiomolbio.2020.10.006
关键词
Human coronavirus; SARS-CoV; SARS-CoV-2; MERS-CoV; HCoV-HKU1; HCoV-NL63; HCoV-OC43; HCoV-229E; Spike protein; Angiotensin-converting enzyme 2; Dipeptidyl peptidase 4; Amino peptidase N; Sialic acid; Receptor binding domain
There are various types of coronaviruses that can cause respiratory diseases in humans, originating from rodents and bats. SARS-CoV-2, which originated in bats and was transmitted to humans via pangolins, shares a common viral entry mechanism with other animals.
A variety of coronaviruses (CoVs) have infected humans and caused mild to severe respiratory diseases that could result in mortality. The human CoVs (HCoVs) belong to the genera of alpha- and beta-CoVs that originate in rodents and bats and are transmitted to humans via zoonotic contacts. The binding of viral spike proteins to the host cell receptors is essential for mediating fusion of viral and host cell membranes to cause infection. The SARS-CoV-2 originated in bats (RaTG13 SARS-CoV) and is transmitted to humans via pangolins. The presence of 'PRRA' sequence motif in SARS-CoV-2 spike proteins from human, dog, cat, mink, tiger and lion suggests a common viral entry mechanism into host cells. In this review, we discuss structural features of HCoV spike proteins and recognition of host protein and carbohydrate receptors. (c) 2020 Elsevier Ltd. All rights reserved.
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