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A peptidoglycan N-d...
A peptidoglycan N-deacetylase specific for anhydroMurNAc chain termini in Agrobacterium tumefaciens
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- Gilmore, Michael C. (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Umeå Centre for Microbial Research (UCMR),Institutionen för molekylärbiologi (Medicinska fakulteten)
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- Yadav, Akhilesh K. (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Umeå Centre for Microbial Research (UCMR),Institutionen för molekylärbiologi (Medicinska fakulteten),Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, India; Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Uttar Pradesh, Lucknow, India
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- Espaillat, Akbar, master, 1988- (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Umeå Centre for Microbial Research (UCMR),Institutionen för molekylärbiologi (Medicinska fakulteten)
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- Gust, Andrea A. (författare)
- Department of Plant Biochemistry, Center of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany
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- Williams, Michelle A. (författare)
- Division of Biological Sciences, University of Missouri-Columbia, MO, Columbia, United States
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- Brown, Pamela J.B. (författare)
- Division of Biological Sciences, University of Missouri-Columbia, MO, Columbia, United States
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- Cava, Felipe (författare)
- Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Umeå Centre for Microbial Research (UCMR),Institutionen för molekylärbiologi (Medicinska fakulteten)
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(creator_code:org_t)
- Elsevier, 2024
- 2024
- Engelska.
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Ingår i: Journal of Biological Chemistry. - : Elsevier. - 0021-9258 .- 1083-351X. ; 300:2
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- During growth, bacteria remodel and recycle their peptidoglycan (PG). A key family of PG-degrading enzymes is the lytic transglycosylases, which produce anhydromuropeptides, a modification that caps the PG chains and contributes to bacterial virulence. Previously, it was reported that the polar-growing Gram-negative plant pathogen Agrobacterium tumefaciens lacks anhydromuropeptides. Here, we report the identification of an enzyme, MdaA (MurNAc deacetylase A), which specifically removes the acetyl group from anhydromuropeptide chain termini in A. tumefaciens, resolving this apparent anomaly. A. tumefaciens lacking MdaA accumulates canonical anhydromuropeptides, whereas MdaA was able to deacetylate anhydro-N-acetyl muramic acid in purified sacculi that lack this modification. As for other PG deacetylases, MdaA belongs to the CE4 family of carbohydrate esterases but harbors an unusual Cys residue in its active site. MdaA is conserved in other polar-growing bacteria, suggesting a possible link between PG chain terminus deacetylation and polar growth.
Ämnesord
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
Nyckelord
- Agrobacterium tumefaciens
- anhydromuropeptide
- deacetylase
- lytic transglycosylase
- peptidoglycan
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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