Table · dataset · 2026
Phosphorylation by the PknB Serine/Threonine Kinase Stimulates Dimer Formation by WalR
Listed in ZivaHub and HKU DataHub and DaYta Ya Rona and figshare and Loughborough Research Repository and UP Research Data Repository — shown once because both records carry DOI 10.1021/acs.biochem.6c00334.s005
WalKR is a two-component system that regulates cell wall homeostasis and other processes in low-GC Gram-positive bacteria.
Description
It is essential for viability in Staphylococcus aureus and regulates genes that encode the autolysins and other critical proteins. The sensor kinase WalK phosphorylates WalR at the aspartic acid residue 53 (D53) in the receiver domain, stimulating promoter DNA binding.
Unlike most response regulators, WalR is reported to have a second kinase, the serine/threonine kinase PknB, which phosphorylates the receiver domain at the threonine residue 101. We previously reported that a <i>walR</i> mutation that changed T101 to a methionine conferred low-level resistance to vancomycin and greatly increased susceptibility to tunicamycin along with several other phenotypic traits. In this work, we demonstrate similarities between <i>pknB</i> null and the WalR<sub>T101M</sub> mutants.
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A combination of <i>in vitro</i> and <i>in vivo</i> data supports the idea that PknB interacts with WalR in living cells (consistent with similar experiments in Bacillus subtilis) and that this likely involves phosphorylation of WalR at T101. Using <i>in silico</i> modeling, we identified a possible intermolecular hydrogen bond between the T101 phosphate group and E108. This would have the effect of stabilizing the WalR dimerization interface.
Consistent with this, we find that T101 is important for WalR dimer formation <i>in vivo</i>. The primary activation of WalR is clearly phosphorylation at D53 by WalK. However, our data suggest that PknB serves as a second potentiating input stabilizing the WalR dimer.
Links
Where it is published
- DOI doi.org/10.1021/acs.biochem.6c00334.s005 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
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Related
- Possibly the same asPhosphorylation by the PknB Serine/Threonine Kinase Stimulates Dimer Formation by WalR
- Possibly the same asPhosphorylation by the PknB Serine/Threonine Kinase Stimulates Dimer Formation by WalR
- Possibly the same asPhosphorylation by the PknB Serine/Threonine Kinase Stimulates Dimer Formation by WalR
- Possibly the same asPhosphorylation by the PknB Serine/Threonine Kinase Stimulates Dimer Formation by WalR
Provenance · 6 source records, 82 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34027246 | 11 d ago | JSON v1 |
| HKU DataHub | oai:figshare.com:article/34027246 | 11 d ago | JSON v1 |
| DaYta Ya Rona | oai:figshare.com:article/34027246 | 11 d ago | JSON v1 |
| figshare | oai:figshare.com:article/34027246 | 10 d ago | JSON v1 |
| Loughborough Research Repository | oai:figshare.com:article/34027246 | 10 d ago | JSON v1 |
| UP Research Data Repository | oai:figshare.com:article/34027246 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[disease].local:disease:cancer | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[disease].local:disease:cancer | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[disease].local:disease:cancer | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[disease].local:disease:cancer | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[disease].local:disease:cancer | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[disease].local:disease:cancer | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Cancer'] |
| concepts[field].anzsrc:field:320211 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:field:320211 | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:field:320211 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:field:320211 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:field:320211 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:field:320211 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Infectious Diseases'] |
| concepts[field].anzsrc:group:3101 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3101 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3101 | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3101 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3101 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3101 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3105 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3107 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3204 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].anzsrc:group:3204 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].anzsrc:group:3204 | mapping · dayta nwu ac za | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].anzsrc:group:3204 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].anzsrc:group:3204 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].anzsrc:group:3204 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Immunology'] |
| concepts[field].local:field:astronomy | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:engineering | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| concepts[field].local:field:engineering | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:humanities | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:humanities | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| concepts[field].local:field:humanities | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:humanities | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:materials-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:psychology-behavioral | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:social-science | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:social-science | mapping · dayta nwu ac za | connector:dayta_nwu_ac_za@1.0.0 | |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/rights |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |