Results 61 to 70 of about 90,894 (265)

Peptide synthesis by recombinant Fasciola hepatica cathepsin L1 [PDF]

open access: yes, 2006
Synthesis of the tripeptide Z-Phe-Arg-SerNH2 has been accomplished by a recombinant cysteine protease, cathepsin L1 from liver fluke (Fasciola hepatica), using Z-Phe-Arg-OMe as acyl acceptor and SerNH2 as nucleophile in 0.1 M ammonium acetate pH 9.0–12.5%
Ciarán Ó'Fágáin   +16 more
core   +1 more source

GATA4‐Driven Transcription of HtrA1 Promotes Cellular Senescence in Ménière's Disease and Age‐Related Audio‐Vestibular Dysfunction

open access: yesAdvanced Science, EarlyView.
This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang   +16 more
wiley   +1 more source

Targeting Lactate and Lactylation in Cancer Metabolism and Immunotherapy

open access: yesAdvanced Science, EarlyView.
Lactate, once deemed a metabolic waste, emerges as a central regulator of cancer progression. This review elucidates how lactate and its epigenetic derivative, protein lactylation, orchestrate tumor metabolism, immune suppression, and therapeutic resistance.
Jiajing Gong   +5 more
wiley   +1 more source

CAQ Corner: Basic concepts of transplant immunology

open access: yes, 2022
Liver Transplantation, EarlyView.
Amanda Cheung, Josh Levitsky
wiley   +1 more source

Proximity‐Induced Transfer of a Mass Tag Enables Direct Profiling of Active Matrix Metalloproteases

open access: yesAngewandte Chemie, EarlyView.
A proximity‐induced, mass‐encoded activity‐based protein profiling (ABPP) approach transfers a MALDI‐detectable α‐cyano‐4‐hydroxycinnamic acid (CHCA) tag directly to active proteases. This tag enables the direct, multiplexed, and quantitative detection of enzyme activity in complex proteomes without enrichment or purification.
Lomane Berthy   +20 more
wiley   +2 more sources

Identification of Two Novel HLA-A∗0201-Restricted CTL Epitopes Derived from MAGE-A4

open access: yesClinical and Developmental Immunology, 2010
MAGE-A antigens belong to cancer/testis (CT) antigens that are expressed in tumors but not in normal tissues except testis and placenta. MAGE-A antigens and their epitope peptides have been used in tumor immunotherapy trials.
Zheng-Cai Jia   +7 more
doaj   +1 more source

Analytical Rebridging Monte Carlo: Application to cis/trans Isomerization in Proline-Containing, Cyclic Peptides [PDF]

open access: yes, 1999
We present a new method, the analytical rebridging scheme, for Monte Carlo simulation of proline-containing, cyclic peptides. The cis/trans isomerization is accommodated by allowing for two states of the amide bond.
Higgins K. A.   +4 more
core   +2 more sources

Understanding and Overcoming Antibody‐Drug Conjugate Resistance: Biological Mechanisms and Emerging Analytical Frameworks in Breast Cancer

open access: yesAdvanced Science, EarlyView.
Antibody–drug conjugates (ADCs) transform breast cancer therapy, yet resistance limits their durability. Emerging evidence reveals that ADC failure is not solely tumor‐intrinsic but shaped by dynamic tumor–microenvironment interactions that alter drug delivery, processing, and response.
Minji Seo, Jangsoon Lee, Naoto T. Ueno
wiley   +1 more source

Detection of S1-P1 and S3-P3 interactions between papain and four synthetic substrates

open access: yesBrazilian Archives of Biology and Technology, 1999
In this study, the S1 - P1 and S3 - P3 interactions between papain and four synthetic peptide substrates were found as to be important. The values of Km were estimated as to be practically identical between these substrates; this latter is supporting the
Emmanuel M Papamichael   +2 more
doaj   +1 more source

Primary structure of potato Kunitz-type serine proteinase inhibitor [PDF]

open access: yes, 2000
The serine proteinase inhibitor (PSPI-51) isolated from potato tubers (Solanum tuberosum L,) comprises two protein species with pi 5.2 and 6.3, denoted as PSPI-21-5.2 and PSPI-21-6.3, respectively.
Mentele, Reinhard   +3 more
core   +1 more source

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