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Showing 1-30 of 137 results for "T3824" within Papers
Ayşe Türkhan et al.
Applied biochemistry and biotechnology, 192(2), 432-442 (2020-05-13)
Tyrosinase (T3824, Sigma) enzymes were immobilized onto SnO2: Sb thin films (ATO-TF) which were synthesized in laboratory conditions by spray pyrolysis technique. Immobilization of tyrosinase onto SnO2: Sb thin film (ATO-TF) was confirmed by scanning electron microscopy (SEM) and Fourier
Jang Hoon Kim et al.
Biomolecules, 10(2) (2020-01-26)
: Tyrosinase plays a key role in the production of melanin. A variety of industrial fields have shown interest in the development of tyrosinase inhibitors from plants. In this study, compounds 1-5 derived from Leonurusjaponicas were evaluated to determine their
Mor Goldfeder et al.
Biochimica et biophysica acta, 1834(3), 629-633 (2013-01-12)
Tyrosinase is a type 3 copper enzyme with great potential for production of commercially valuable diphenols from monophenols. However, the use of tyrosinase is limited by its further oxidation of diphenols to quinones. We recently determined the structure of the
Chung-Oui Hong et al.
Bioscience, biotechnology, and biochemistry, 77(1), 58-64 (2013-01-08)
Considering the growing evidence of the presence of antioxidant compounds in plant extracts, the objectives of this study were to identify antioxidant compounds in Lindera obtusiloba Blume (Lauraceae) and to evaluate their antimelanogenic activities on B16F10 melanoma cells. Organic solvent
W S Oetting et al.
Human mutation, 12(6), 433-434 (2000-02-12)
Mutations in the human tyrosinase gene produce tyrosinase-related oculocutaneous albinism (OCA1, MIM #203100). Tyrosinase is a copper containing enzyme and is responsible for catalyzing the rate limiting step in melanin biosynthesis, the hydroxylation of tyrosine to dopaquinone. We report 13
Eun Sung Kim et al.
FEBS letters, 587(24), 3955-3960 (2013-11-06)
Autophagy is a cooperative process between autophagosomes and lysosomes that degrades cellular organelles. Although autophagy regulates the turnover of cellular components, its role in melanogenesis is not clearly established. Previously, we reported that ARP101 induces autophagy in various cancer cells.
Gülşah Karakaya et al.
Bioorganic chemistry, 88, 102950-102950 (2019-05-11)
Tyrosinase inhibitors have become increasingly important as whitening agents and for the treatment of pigmentary disorders. In this study, the synthesis of kojic acid derivatives having 2-substituted-3-hydroxy-6-hyroxymethyl/chloromethyl/methyl/morpholinomethylpiperidinyl- methyl/pyrrolidinylmethyl-4H-pyran-4-one structure (compounds 1-30) with inhibitory effects on tyrosinase enzyme were described. One-pot
L B Giebel et al.
The Journal of clinical investigation, 87(3), 1119-1122 (1991-03-01)
Type I oculocutaneous albinism (OCA) is an autosomal recessive disorder in which deficient synthesis of melanin pigment results from abnormal activity of melanocyte tyrosinase. A novel type I OCA phenotype in which hypopigmentation is related to local body temperature is
L H Breimer et al.
Clinica chimica acta; international journal of clinical chemistry, 227(1-2), 17-22 (1994-06-01)
Direct DNA sequence determination of PCR amplified exons of the tyrosinase gene of three British patients suffering from tyrosinase negative oculocutaneous albinism has revealed three new missense point mutations: (1) an adenine to guanine transition at codon 1 changes the
Carolina Valdes et al.
Ecotoxicology and environmental safety, 206, 111197-111197 (2020-09-04)
In the present study, Zea mays seedlings grown under nano Cu(OH)2 (nCu), bulk Cu(OH)2 (bCu), and ionic CuSO4 (iCu) compound exposure were harvested after six days. The nutritional profile was determined to be significantly disrupted in the roots by 1000 ppm
Novel and recurrent mutations in the tyrosinase gene and the P gene in the German albino population.
L A Passmore et al.
Human genetics, 105(3), 200-210 (2000-09-15)
Albinism is a heterogeneous group of genetic disorders resulting from deficiencies in pigmentation. Clinically, it is divided into ocular (OA) and oculocutaneous albinism (OCA). OCA involves lack of pigment in the skin, hair, and eyes and results from mutations in
W S Oetting et al.
Human mutation, 13(2), 99-115 (1999-03-27)
Albinism, caused by a deficiency of melanin pigment in the skin, hair, and eye (oculocutaneous albinism [OCA]), or primarily in the eye (ocular albinism [OA]), results from mutations in genes involved in the biosynthesis of melanin pigment. The lack of
Paola Malaspina et al.
PeerJ, 8, e9150-e9150 (2020-05-29)
Melanin is the main pigment of human skin, playing the primary role of protection from ultraviolet radiation. Alteration of the melanin production may lead to hyperpigmentation diseases, with both aesthetic and health consequences. Thus, suppressors of melanogenesis are considered useful
Khadijeh Khezri et al.
Artificial cells, nanomedicine, and biotechnology, 48(1), 841-853 (2020-05-28)
Kojic acid (KA) as tyrosinase inhibitor shows insufficient skin penetration and several adverse events due topical administration. KA solid lipid nanoparticles (KA-SLNs) were prepared using high speed homogenisation followed by ultra-probe sonication method for improve its effectiveness.KA-SLNs was optimised by
Ram Kumar Sahu et al.
Pakistan journal of biological sciences : PJBS, 17(1), 146-150 (2014-05-03)
Herbal cream imparts a chief role in regulating melanin production of skin. The phytoconstituents present in herbal cream impact biological functions of skin and contribute nutrients required for the healthy skin. In the present study, it was envisaged to prepare
R A King et al.
Molecular biology & medicine, 8(1), 19-29 (1991-02-01)
Type I oculocutaneous albinism (OCA) is produced by mutations of the tyrosinase gene. We report four new missense mutations in the tyrosinase gene in patients with type IA OCA. Three of these mutations occur within exon I and the fourth
Joel Ricky Steele et al.
Proteomes, 9(2) (2021-06-03)
Proteinopathies are protein misfolding diseases that have an underlying factor that affects the conformation of proteoforms. A factor hypothesised to play a role in these diseases is the incorporation of non-protein amino acids into proteins, with a key example being
Shilpi Goenka et al.
Biomedicines, 8(10) (2020-10-18)
CMT-308 is a nonantimicrobial chemically-modified tetracycline (CMT), which we have previously shown exhibits antifungal activity and pleiotropic anti-inflammatory activities, including inhibition of the enzymatic activity of matrix metalloproteinases (MMPs). Based on its chemical structure, we hypothesized that CMT-308 could inhibit
Chee W How et al.
Biochimica et biophysica acta, 1838(5), 1215-1224 (2014-02-13)
Catechin flavonoids are the main components of green tea extracts which present broad potential physiological activities. Several of their biological activities seem to affect membrane-dependent cellular processes and it is known that some catechins interact with phospholipid membranes. In this
Kyung Hun Son et al.
Journal of cosmetic science, 64(2), 145-158 (2013-04-13)
To search for new depigmenting cosmetic ingredients from Korean herbal extracts of traditional Korean medicines (TKMs), we screened about 17 TKM extracts collected in the Republic of Korea. Samples were prepared from the natural plants, including medicinal plants such as
Detection of mutations in the tyrosinase gene in a patient with type IA oculocutaneous albinism.
R A Spritz et al.
The New England journal of medicine, 322(24), 1724-1728 (1990-06-14)
Suat Sari et al.
Bioorganic chemistry, 92, 103259-103259 (2019-09-14)
In the present study, we aimed to identify the tyrosinase enzyme inhibitory potential of Vinca major L. extract and its secondary metabolites. The extract possessed remarkable tyrosinase enzyme inhibitory effect with IC50 value of 20.39 ± 0.44 µg/mL compared to the positive control
W S Oetting et al.
Human genetics, 90(3), 258-262 (1992-11-01)
Type I oculocutaneous albinism (OCA) is caused by the reduction in or absence of activity of tyrosinase in melanocytes in skin, hair, and the eyes, the result of mutations of the tyrosinase gene. To date, a total of 22 unique
Renee P Stokowski et al.
American journal of human genetics, 81(6), 1119-1132 (2007-11-14)
We have conducted a multistage genomewide association study, using 1,620,742 single-nucleotide polymorphisms to systematically investigate the genetic factors influencing intrinsic skin pigmentation in a population of South Asian descent. Polymorphisms in three genes--SLC24A5, TYR, and SLC45A2--yielded highly significant replicated associations
Tyrosinase activity of peroxidase of red beet root vacuoles and plastids.
E V Pradedova et al.
Doklady. Biochemistry and biophysics, 448, 9-12 (2013-03-13)
Ching-Yi Lien et al.
TheScientificWorldJournal, 2014, 409783-409783 (2014-08-20)
We investigated the kinetics of 4N-acetyl-pentapeptides, Ac-P1, Ac-P2, Ac-P3, and Ac-P4, regarding inhibition of mushroom tyrosinase activity. The peptides sequences of Ac-P1, Ac-P2, Ac-P3, and Ac-P4 were Ac-RSRFK, Ac-KSRFR, Ac-KSSFR, and Ac-RSRFS, respectively. The 4N-acetyl-pentapeptides were able to reduce the
Separation, purification, and properties of two tyrosinases from hamster melanoma.
S H POMERANTZ
The Journal of biological chemistry, 238, 2351-2357 (1963-07-01)
Neda Rafat et al.
Biosensors, 11(11) (2021-11-26)
A novel, integrated experimental and modeling framework was applied to an inhibition-based bi-enzyme (IBE) electrochemical biosensor to detect acetylcholinesterase (AChE) inhibitors that may trigger neurological diseases. The biosensor was fabricated by co-immobilizing AChE and tyrosinase (Tyr) on the gold working
Hyun-E Lee et al.
Die Pharmazie, 68(3), 212-216 (2013-04-06)
Melanin plays major a role in pigmentation of hair, eyes, and skin in mammals. In this study, the inhibitory effects of MMS 1001 on alpha-MSH-stimulated melanogenesis were investigated in B16F10 melanoma cells. MMS 1001 did not show cytotoxic effects up
B S Kwon et al.
Proceedings of the National Academy of Sciences of the United States of America, 84(21), 7473-7477 (1987-11-01)
Screening of a lambda gt11 human melanocyte cDNA library with antibodies against hamster tyrosinase (monophenol, L-dopa:oxygen oxidoreductase, EC 1.14.18.1) resulted in the isolation of 16 clones. The cDNA inserts from 13 of the 16 clones cross-hybridized with each other, indicating
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