Results 31 to 40 of about 6,236 (183)

The Peptidoglycan Pattern of Staphylococcus carnosus TM300—Detailed Analysis and Variations Due to Genetic and Metabolic Influences

open access: yesAntibiotics, 2016
The Gram-positive bacterium Staphylococcus carnosus (S. carnosus) TM300 is an apathogenic staphylococcal species commonly used in meat starter cultures.
Julia Deibert   +4 more
doaj   +1 more source

Understanding the constitutive presentation of MHC class I immunopeptidomes in primary tissues

open access: yesiScience, 2022
Summary: Understanding the molecular principles that govern the composition of the MHC-I immunopeptidome across different primary tissues is fundamentally important to predict how T cells respond in different contexts in vivo. Here, we performed a global
Peter Kubiniok   +13 more
doaj   +1 more source

Glutamylation of an HIV-1 protein inhibits the immune response by hijacking STING

open access: yesCell Reports, 2023
Summary: Cyclic GMP-AMP synthase (cGAS) recognizes Y-form cDNA of human immunodeficiency virus type 1 (HIV-1) and initiates antiviral immune response through cGAS-stimulator of interferon genes (STING)-TBK1-IRF3-type I interferon (IFN-I) signalingcascade.
Gui Qian   +17 more
doaj   +1 more source

A Tale of Two Carboxypeptidases [PDF]

open access: yes, 2009
Proopiomelanocortin (Pomc) neurons play a central role in energy homeostasis. Despite the complexity of Pomc posttranslational processing, regulation of Pomc gene expression often takes center stage.
Low, Malcolm J.
core   +1 more source

BRS1 mediates plant redox regulation and cold responses

open access: yesBMC Plant Biology, 2021
Background Brassinosteroid-insensitive 1 suppressor 1 (BRS1) is a serine carboxypeptidase that mediates brassinosteroid signaling and participates in multiple developmental processes in Arabidopsis. However, little is known about the precise role of BRS1
Dongzhi Zhang   +4 more
doaj   +1 more source

Selective Cytotoxicity of Carboxypeptidase-activated Methotrexate ex-Peptides

open access: yesPteridines, 1989
Methotrexate ex-pep tides (derivatives in which an amino acid is linked covalently to the ex-carboxyl of the glutamate residue on the parent drug) can be hydrolyzed by specific carboxypeptidases to yield free Methotrexate (MTX) and the corresponding ...
Vitols Karin S.   +3 more
doaj   +1 more source

Subfamily-specific adaptations in the structures of two penicillin-binding proteins from Mycobacterium tuberculosis. [PDF]

open access: yesPLoS ONE, 2014
Beta-lactam antibiotics target penicillin-binding proteins including several enzyme classes essential for bacterial cell-wall homeostasis. To better understand the functional and inhibitor-binding specificities of penicillin-binding proteins from the ...
Daniil M Prigozhin   +8 more
doaj   +1 more source

Prodrugs Activated by Vascular Ectopeptidases: Proof of Concept

open access: yesMedical Sciences Forum, 2022
Several vascular ectopeptidases reside in blood vessels and efficiently regulate peptide hormones. For instance, bradykinin (BK) is inactivated by angiotensin converting enzyme (ACE) or arginine-carboxypeptidases (Arg-CPs), and aminopeptidase N (APN ...
François Marceau
doaj   +1 more source

D-Arg0-Bradykinin-Arg-Arg, a Latent Vasoactive Bradykinin B2 Receptor Agonist Metabolically Activated by Carboxypeptidases

open access: yesFrontiers in Pharmacology, 2018
We previously reported hypotensive and vasodilator effects from C-terminally extended bradykinin (BK) sequences that behave as B2 receptor (B2R) agonists activated by vascular or plasma peptidases.
Hélène Bachelard   +2 more
doaj   +1 more source

Cryo-EM structure of VASH1-SVBP bound to microtubules

open access: yeseLife, 2020
The dynamic tyrosination-detyrosination cycle of α-tubulin regulates microtubule functions. Perturbation of this cycle impairs mitosis, neural physiology, and cardiomyocyte contraction.
Faxiang Li   +7 more
doaj   +1 more source

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