Author

Gregory J. Walker

UNSW SydneyORCID 0000-0003-0044-1394Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Genetic & Genomic Medicine· 1 Microbiology· 1

Signature Assays, Organisms & Methods

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Organism:human· 2 Approach:experimental assay· 1 Research Focus:host-pathogen & immune response· 1 Assay:proteomics· 1 Approach:statistical model· 1 Research Focus:variant calling· 1 Assay:whole-genome sequencing· 1

Frequent Co-Authors

Charles S. P. FosteriD· 2 shared William D. RawlinsoniD· 2 shared Alberto Ospina-Stella· 1 shared Alexander A. KhromykhiD· 1 shared Andrew Ginn· 1 shared Angelica L. Morgan· 1 shared Angelika Bröer· 1 shared Anthony Dominic KelleheriD· 1 shared

Activity by Year

2022-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 38 mutual co-author links

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2 shared papersMicrobiology

Charles S. P. FosterORCID

Mutual co-authors in cluster

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2 papers

Recent·Most cited

MicrobiologybioRxivPreprintSep 24, 2026

Proteolytic control of the SARS-CoV-2 furin cleavage site defines the phenotypic evolution from the pandemic to endemic state

Anupriya Aggarwal, Samantha Ognenovska, Timothy Ison…·Stuart Grant Turville

The paper shows how SARS-CoV-2 variants, particularly Omicron, evolved proteolytic controls at the Spike furin cleavage site to enhance transmission while reducing lower respiratory tract pathogenicity.

DOI 10.64898/2026.09.23.753140

humanproteomics

𝕏 PostBluesky

Genetic & Genomic MedicinemedRxivPreprintSep 6, 2022

Persistence of a SARS-CoV-2 variant with a frameshifting deletion for the duration of a major outbreak

Charles S. P. Foster, Rowena Anne Bull, Nicodemus T. Tedla…·William D. Rawlinson

The paper identifies a SARS-CoV-2 variant with an ORF7a deletion that persisted during a major outbreak but shows no clear fitness advantage in cell culture.

DOI 10.1101/2022.09.06.22279658

humanwhole-genome sequencing

𝕏 PostBluesky