Evidence map›Paper›PMID 35480256›Full record

ArticleRSC advances2021

The SARS-CoV-2 B.1.618 variant slightly alters the spike RBD-ACE2 binding affinity and is an antibody escaping variant: a computational structural perspective.

Abbas Khan, Jianjun Gui, Waqar Ahmad, Inamul Haq, Marukh Shahid, Awais Ahmed Khan, Abdullah Shah, Arsala Khan, Liaqat Ali, Zeeshan Anwar and 6 more

Abstract read
In one paragraph

Article in RSC advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed.

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  9. Computational proteomics analysis ofFrontiers in plant science · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Abbas KhanDepartment of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University Shanghai 200240 P. R. China dqwei@sjtu.edu.cn.ORCID https://orcid.org/0000-0001-8349-5181
Jianjun GuiDepartment of Emergency, Shiyan People's Hospital Bao'an District Shenzhen China.
Waqar AhmadDepartment of Microbiology, Abdul Wali Khan University Mardan Khyber Pakhtunkhwa Pakistan.
Inamul HaqDepartment of Animal Sciences, Jeonbuk National University 567 Baekji-Daero, Deokjin-gu Jeonju-si Jeollabuk-do 54896 Republic of Korea.ORCID https://orcid.org/0000-0003-0661-2203
Marukh ShahidDepartment of Botany, University of Okara Okara Punjab Pakistan.
Awais Ahmed KhanDepartment of Pathology, University of Sargodha Punjab Pakistan.
Abdullah ShahDepartment of Biotechnology, Shaheed Benazir Bhutto University Dir Sheringal Pakistan.
Arsala KhanDepartment of Pathology, University of Veterinary and Animal Sciences Lahore Punjab Pakistan.
Liaqat AliDepartment of Biosciences, COMSATS University Islamabad 45550 Pakistan.
Zeeshan AnwarDepartment of Pharmacy, Abdul Wali Khan University Mardan Khyber Pakhtunkhwa Pakistan.
Muhammad SafdarFaculty of Pharmacy, Gomal University DI Khan Khyber Pakhtunkhwa Pakistan.
Jehad AbubakerDepartment of Genetics and Bioinformatics, Dasman Diabetes Institute Kuwait.
N Nizam UddinBiomedical Engineering Department, HITEC University Taxila Punjab Pakistan.
Liqiang CaoHenan University of Technology (HAUT) Zhengzhou P. R. China clq@haut.edu.cn.
Dong-Qing WeiDepartment of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University Shanghai 200240 P. R. China dqwei@sjtu.edu.cn.ORCID https://orcid.org/0000-0003-4200-7502
Anwar MohammadDepartment of Biochemistry and Molecular Biology, Dasman Diabetes Institute Kuwait.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Continuing reports of new SARS-CoV-2 variants have caused worldwide concern and created a challenging situation for clinicians. The recently reported variant B.1.618, which possesses the E484K mutation specific to the receptor-binding domain (RBD), as well as two deletions of Tyr145 and His146 at the N-terminal binding domain (NTD) of the spike protein, must be studied in depth to devise new therapeutic options. Structural variants reported in the RBD and NTD may play essential roles in the increased pathogenicity of this SARS-CoV-2 new variant. We explored the binding differences and structural-dynamic features of the B.1.618 variant using structural and biomolecular simulation approaches. Our results revealed that the E484K mutation in the RBD slightly altered the binding affinity through affecting the hydrogen bonding network. We also observed that the flexibility of three important loops in the RBD required for binding was increased, which may improve the conformational optimization and consequently binding of the new variant. Furthermore, we found that deletions of Tyr145 and His146 at the NTD reduced the binding affinity of the monoclonal antibody (mAb) 4A8, and that the hydrogen bonding network was significantly affected consequently. This data show that the new B.1.618 variant is an antibody-escaping variant with slightly altered ACE2-RBD affinity. Moreover, we provide insights into the binding and structural-dynamics changes resulting from novel mutations in the RBD and NTD. Our results suggest the need for further

Identifiers

PMID35480256
PMCPMC9040812

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.