Results 21 to 30 of about 453 (130)

Efficient production of shinorine, a natural sunscreen material, from glucose and xylose by deleting HXK2 encoding hexokinase in Saccharomyces cerevisiae [PDF]

FEMS Yeast Research, 2021
ABSTRACT Mycosporine-like amino acids (MAAs), microbial secondary metabolites with ultraviolet (UV) absorption properties, are promising natural sunscreen materials. Due to the low efficiency of extracting MAAs from natural producers, production in heterologous hosts has recently received attention.
Chaeyeon Jin, Sojeong Kim, Seokjun Moon, Hyunbin Jin, Ji-Sook Hahn   +4 more
openaire   +2 more sources

Biological Effect of Mycosporine-Gly-Ser (Shinorine) Against Bis-Retinoid <i>N</i>-Retinyl-<i>N</i>-Retinylidene Ethanolamine- and Blue-Light-Induced Retinal Pigment Epithelium Cell Damage. [PDF]

Nutrients
Shinorine is a mycosporine-like amino acid isolated from laver (Porphyra dentata), and interest in its functionality has increased recently due to increased production using yeast. There have been few reports on the pharmacological activity of shinorine, and we sought to find the pharmacological significance of shinorine.
Song SY, Cho JY, Park DH, Song SH, Lee SH, Park JW, Lim HK, Cho SS.   +7 more
europepmc   +3 more sources

The Interplay of Mycosporine-like Amino Acids between Phytoplankton Groups and Northern Krill (Thysanoessa sp.) in a High-Latitude Fjord (Kongsfjorden, Svalbard)

Marine Drugs, 2022
We investigated pigment and mycosporine-like amino acid (MAA) concentrations of phytoplankton and Northern krill (Thysanoessa sp.) in sub-Arctic Kongsfjorden. Chlorophyll a (Chl-a) concentrations in the surface and middle-layer water were 0.44 μg L−1 (±0.
Bo Kyung Kim, Mi-Ok Park, Jun-Oh Min, Sung-Ho Kang, Kyung-Hoon Shin, Eun Jin Yang, Sun-Yong Ha   +6 more
doaj   +1 more source

Optimization of Extraction Process, Isolation and Characterization of Mycosporine-Like Amino Acids from Four Species of Marine Red Macroalgaes

Shipin gongye ke-ji, 2022
Marine macroalgae is one of the good sources of mycosporine-like amino acids (MAAs), especially red macroalgae. As a new type of active substances with commercial development prospect, extraction, isolation and characterization of MAAs are far from ...
Xiu HAN, Liangliang QIAN, Tongjie CHENG, Yan SHEN, Xiaoqun DENG, Wenxuan ZHU, Yingying SUN   +6 more
doaj   +1 more source

Extraction, Isolation and Characterization of Mycosporine-like Amino Acids from Four Species of Red Macroalgae

Marine Drugs, 2021
Marine macroalgae is known to be a good source of mycosporine-like amino acids (MAAs), especially red macroalgae. As a new type of active substance with commercial development prospects, the current progress in the extraction, isolation and ...
Yingying Sun, Xiu Han, Zhijuan Hu, Tongjie Cheng, Qian Tang, Hui Wang, Xiaoqun Deng, Xu Han   +7 more
doaj   +1 more source

An ATP-Grasp Ligase Involved in the Last Biosynthetic Step of the Iminomycosporine Shinorine in Nostoc punctiforme ATCC 29133 [PDF]

Journal of Bacteriology, 2011
ABSTRACT We investigated the genetic basis for mycosporine sunscreen biosynthesis by the cyanobacterium Nostoc punctiforme ATCC 29133. Heterologous expression in Escherichia coli of three contiguous N.
Qunjie, Gao, Ferran, Garcia-Pichel
openaire   +2 more sources

A Method for the Isolation and Characterization of Mycosporine-Like Amino Acids from Cyanobacteria

Methods and Protocols, 2018
This report provides a broadly applicable and cost-effective method for the purification of mycosporine-like amino acids (MAAs) from cyanobacteria. As MAAs are known to have multiple bioactivities for health and beauty, a universal isolation method of ...
Siripat Ngoennet, Yasuhiro Nishikawa, Takashi Hibino, Rungaroon Waditee-Sirisattha, Hakuto Kageyama   +4 more
doaj   +1 more source

Environmental adaptations by the intertidal Antarctic cyanobacterium Halotia branconii CENA392 as revealed using long‐read genome sequencing

Limnology and Oceanography Letters, Volume 8, Issue 5, Page 770-780, October 2023., 2023
Abstract Antarctica poses numerous challenges to life such as cold shock, low nutrient concentrations, and periodic desiccation over a wide range of extreme temperatures. Cyanobacteria survive this harsh environment having evolved adaptive metabolic plasticity to become the dominant primary producers.
Rafael B. Dextro, Endrews Delbaje, Paloma N. N. Freitas, Vanessa Geraldes, Ernani Pinto, Paul F. Long, Marli F. Fiore   +6 more
wiley   +1 more source

Resolving Confusion Surrounding d‐Ala‐d‐Ala Ligase Catalysis in Cyanobacterial Mycosporine‐Like Amino Acid (MAA) Biosynthesis

ChemBioChem, Volume 24, Issue 10, May 16, 2023., 2023
What's in a name? Cyanobacteria can introduce structural diversity into MAAs by using a mysD ligase with relaxed specify to modify mycosporine‐glycine. The naming of mysD, based solely upon sequence similarity to the d‐Ala‐d‐Ala ligase of bacterial peptidoglycan biosynthesis, has been confusing. Combining phylogeny and α‐fold tertiary protein structure
Rafael B. Dextro, Marli F. Fiore, Paul F. Long   +2 more
wiley   +1 more source

Anti-Inflammation Activities of Mycosporine-Like Amino Acids (MAAs) in Response to UV Radiation Suggest Potential Anti-Skin Aging Activity

Marine Drugs, 2014
Certain photosynthetic marine organisms have evolved mechanisms to counteract UV-radiation by synthesizing UV-absorbing compounds, such as mycosporine-like amino acids (MAAs).
Sung-Suk Suh, Jinik Hwang, Mirye Park, Hyo Hyun Seo, Hyoung-Shik Kim, Jeong Hun Lee, Sang Hyun Moh, Taek-Kyun Lee   +7 more
doaj   +1 more source