Abstract：
:A thorough characterization of the early time sub-100 fs relaxation dynamics of biologically relevant chromophores is of crucial importance for a complete understanding of the mechanisms regulating the ultrafast dynamics of the relaxation processes in more complex multichromophoric light-harvesting systems. While chlorophyll a has already been the object of several investigations, little has been reported on chlorophyll b, despite its pivotal role in many functionalities of photosynthetic proteins. Here the relaxation dynamics of chlorophyll b in the ultrafast regime have been characterized using 2D electronic spectroscopy. The comparison of experimental measurements performed at room temperature and 77 K allows the mechanisms and the dynamics of the sub-100 fs relaxation dynamics to be characterized, including spectral diffusion and fast internal conversion assisted by a specific set of vibrational modes.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Fresch E,Collini Edoi
10.3390/ijms21082836subject
Has Abstractpub_date
2020-04-18 00:00:00issue
8issn
1422-0067pii
ijms21082836journal_volume
21pub_type
杂志文章abstract：:Current evidence indicates that postischemic brain injury is associated with the accumulation of folding proteins, such as amyloid and tau protein, in the intra- and extracellular spaces of neuronal cells. In this review, we summarize protein changes associated with Alzheimer's disease and their gene expression (amylo...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21134599
更新日期：2020-06-28 00:00:00
abstract：:The TEAD family of transcription factors is necessary for developmental processes. The family members contain a TEA domain for the binding with DNA elements and a transactivation domain for the interaction with transcription coactivators. TEAD proteins are required for the participation of coactivators to transmit the...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms17010138
更新日期：2016-01-21 00:00:00
abstract：:Oxidative stress is considered to be a key factor of the pathogenesis of Parkinson's disease, a multifactorial neurodegenerative disorder characterized by reduced dopaminergic neurons in the substantia nigra pars compacta and accumulated protein aggregates. Rotenone is a worldwide-used pesticide that induces the most ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21082761
更新日期：2020-04-16 00:00:00
abstract：:Esterification of starch was carried out to expand the usefulness of starch for a myriad of industrial applications. Lipase B from Candida antarctica, immobilized on macroporous acrylic resin (Novozym 435), was used for starch esterification in two reaction systems: micro-solvent system and solvent-free system. The es...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms13067226
更新日期：2012-01-01 00:00:00
abstract：:Under acidic conditions and at high ionic strength, the zinc cation is removed from its metal complex with 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) thus leading to the diacid free porphyrin, that subsequently self-organize into J-aggregates. The kinetics of the demetallation step and the successive supr...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21114001
更新日期：2020-06-03 00:00:00
abstract：:Bradyrhizobium japonicum is a nitrogen-fixing symbiont of soybean. In previous studies, transcriptomic profiling of B. japonicum USDA110, grown under various environmental conditions, revealed the highly induced gene aceA, encoding isocitrate lyase (ICL). The ICL catalyzes the conversion of isocitrate to succinate and...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms160716695
更新日期：2015-07-22 00:00:00
abstract：:Sarcopenia in patients with liver cirrhosis (LC) has been attracting much attention these days because of the close linkage to adverse outcomes. LC can be related to secondary sarcopenia due to protein metabolic disorders and energy metabolic disorders. LC is associated with profound alterations in gut microbiota and ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21155254
更新日期：2020-07-24 00:00:00
abstract：:Transcription factor binding sites (TFBSs) play an important role in gene expression regulation. Many computational methods for TFBS prediction need sufficient labeled data. However, many transcription factors (TFs) lack labeled data in cell types. We propose a novel method, referred to as DANN_TF, for TFBS prediction...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20143425
更新日期：2019-07-12 00:00:00
abstract：:The HGF/c-MET pathway is active in the development of digestive system cancers, indicating that inhibition of HGF/c-MET signaling may have therapeutic potential. Various HGF/c-MET signaling inhibitors, mainly c-MET inhibitors, have been tested in clinical trials. The observed efficacy and adverse events of some c-MET ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19113295
更新日期：2018-10-23 00:00:00
abstract：:Neonatal hypoxia-ischemia (HI) is a major cause of death and disability in neonates. HI leads to a dramatic rise in intracellular calcium levels, which was originally thought to be detrimental to the brain. However, it has been increasingly recognized that this calcium signaling may also play an important protective r...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20092063
更新日期：2019-04-26 00:00:00
abstract：:A series of gold(I) complexes of the general composition [Au(naza)(PPh₃)] (1-8) was prepared and thoroughly characterized (e.g., electrospray ionization (ESI) mass spectrometry and multinuclear nuclear magnetic resonance (NMR) spectroscopy). The N1-deprotonated anions of 7-azaindole or its derivatives (naza) are coord...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms17122084
更新日期：2016-12-11 00:00:00
abstract：:Doxorubicin (DOX) is an anthracycline drug with a wide spectrum of antineoplastic activities. However, it causes cardiac cytotoxicity, and this limits its clinical applications. MicroRNA-21 (miR-21) plays a vital role in regulating cell proliferation and apoptosis. While miR-21 is preferentially expressed in adult car...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms160714511
更新日期：2015-06-26 00:00:00
abstract：:Epigenetic modifications have emerged into one of the cancer hallmarks, replacing the concept of malignant pathologies as being solely genetic-based conditions. The epigenetic landscape is responsible for normal development but also for the heterogeneity among tissues in terms of gene expression patterns. Dysregulatio...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19030670
更新日期：2018-02-27 00:00:00
abstract：:Animal venoms are small natural mixtures highly enriched in bioactive components. They are known to target at least two important pharmacological classes of cell surface receptors: ion channels and G protein coupled receptors. Since sperm cells express a wide variety of ion channels and membrane receptors, required fo...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21207786
更新日期：2020-10-21 00:00:00
abstract：:The aim of this work was to compare protective and anti-apoptotic effects of α-tocopherol at nanomolar and micromolar concentrations against 0.2 mM H(2)O(2)-induced toxicity in the PC12 neuronal cell line and to reveal protein kinases that contribute to α-tocopherol protective action. The protection by 100 nM α-tocoph...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms130911543
更新日期：2012-01-01 00:00:00
abstract：:Nut-based milks and yogurts are gaining popularity, but may not offer the same benefits as dairy yogurts to consumers. Cashew nuts often cause severe allergic reactions, and cashew nut allergens are stable to several types of processing. To compare its characteristics to dairy yogurt and characterize the effects of fe...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21218267
更新日期：2020-11-04 00:00:00
abstract：:The unbalanced assignment problem (UAP) is to optimally resolve the problem of assigning n jobs to m individuals (m < n), such that minimum cost or maximum profit obtained. It is a vitally important Non-deterministic Polynomial (NP) complete problem in operation management and applied mathematics, having numerous real...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms161025338
更新日期：2015-10-23 00:00:00
abstract：:Stem cell-based therapy is a promising approach to treat cartilage lesions and clinical benefits have been reported in a number of studies. However, the efficacy of cell injection procedures may be impaired by cell manipulation and damage as well as by cell dissemination to non-target tissues. To overcome such issues,...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms19113322
更新日期：2018-10-25 00:00:00
abstract：:Beclin 1 is a major regulator of autophagy, and it is a core component of the class III PI3K complexes. Beclin 1 is a highly conserved protein and its function is regulated in a number of ways, including post-translational modifications. Several studies indicate that receptor and non-receptor tyrosine kinases regulate...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms21239210
更新日期：2020-12-03 00:00:00
abstract：:The discovery of cell-free fetal DNA molecules in plasma of pregnant women has created a paradigm shift in noninvasive prenatal testing (NIPT). Circulating cell-free DNA in maternal plasma has been increasingly recognized as an important proxy to detect fetal abnormalities in a noninvasive manner. A variety of approac...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms18020453
更新日期：2017-02-20 00:00:00
abstract：:Early diagnosis of cirrhosis and hepatocellular carcinoma (HCC) due to chronic Hepatitis C (CHC) remain clinical priorities. In this pilot study, we assessed serum microRNA (miRNA) expression to distinguish cirrhosis and HCC, alone and in combination with the aminotransferase-to-platelet ratio (APRI), Fibrosis 4 (FIB-...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms20040864
更新日期：2019-02-17 00:00:00
abstract：:n/a. ...
journal_title：International journal of molecular sciences
pub_type： 已发布勘误
doi：10.3390/ijms18010178
更新日期：2017-01-17 00:00:00
abstract：:Increasing photosynthetic ability as a whole is essential for acquiring higher crop yields. Nonleaf green organs (NLGOs) make important contributions to photosynthate formation, especially under stress conditions. However, there is little information on the pod wall in legume forage related to seed development and yie...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21124457
更新日期：2020-06-23 00:00:00
abstract：:The combination of an antifungal agent and drug carrier with adjunctive antimicrobial properties represents novel strategy of complex therapy in pharmaceutical technology. The goal of this study was to investigate the unmodified and ion cross-linked chitosan's influence on anti-Candida activity of clotrimazole used as...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms151017765
更新日期：2014-09-30 00:00:00
abstract：:Alfalfa is an autotetraploid, allogamous and heterozygous forage legume, whose varieties are synthetic populations. Due to the complex nature of the species, information about genetic diversity of germplasm used in any alfalfa breeding program is most beneficial. The genetic diversity of five alfalfa varieties, involv...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms12085449
更新日期：2011-01-01 00:00:00
abstract：:Goat's milk is a rich source of bioactive compounds (peptides, conjugated linoleic acid, short chain fatty acids, monounsaturated and polyunsaturated fatty acids, polyphenols such as phytoestrogens and minerals among others) that exert important health benefits. However, goat's milk composition depends on the type of ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21155530
更新日期：2020-08-01 00:00:00
abstract：:The progression of cancer is associated with increases in amino acid uptake by cancer cells. Upon their entry into cells through specific transporters, exogenous amino acids are used to synthesize proteins, nucleic acids and lipids and to generate ATP. The essential amino acid leucine is also important for maintaining...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms19082373
更新日期：2018-08-12 00:00:00
abstract：:We have previously shown that neural precursor cell-expressed developmentally downregulated gene 4-2 (Nedd4-2) isoforms with a C2 domain are closely related to ubiquitination of epithelial sodium channel (ENaC), resulting in salt-sensitive hypertension by Nedd4-2 C2 targeting in mice. The sodium voltage-gated channel ...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms18061268
更新日期：2017-06-14 00:00:00
abstract：:Maintenance of genome integrity is a key process in all organisms. DNA polymerases (Pols) are central players in this process as they are in charge of the faithful reproduction of the genetic information, as well as of DNA repair. Interestingly, all eukaryotes possess a large repertoire of polymerases. Three protein c...
journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
doi：10.3390/ijms20194814
更新日期：2019-09-27 00:00:00
abstract：:Esophageal squamous cell carcinoma (ESCC), a major histologic type of esophageal cancer, is one of the frequent causes of cancer-related death worldwide. Picropodophyllotoxin (PPT) is the main component of Podophyllum hexandrum root with antitumor activity via apoptosis-mediated mechanisms in several cancer cells. How...
journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms21134640
更新日期：2020-06-30 00:00:00
