Abstract:
:In mammals, the Golgi apparatus is the central hub for intracellular trafficking, sorting and post-translational modifications of proteins and lipids. Golgi reassembly and stacking proteins (GRASPs) are somehow involved in Golgi stacking, which is relevant for its proper function, and also in unconventional protein secretion. However, the structural details on how GRASPs accomplish those tasks are still elusive. Here, we have explored the biochemical and biophysical properties of human full-length GRASP55 in solution. Sequence-based analyses and circular dichroism spectroscopy suggest that GRASP55 presents multiple intrinsically disordered sites, although keeping considerable contents of regular secondary structure. Size exclusion chromatography and multiple-angle light scattering show that GRASP55 are monomers in solution. Urea denaturation of GRASP55 suggests the transition to the unfolded state is a cooperative process. Differential scanning calorimetry analysis displays two endothermic transitions for GRASP55, indicating the existence of an intermediate state prior to unfolding. Thioflavin T fluorescence suggests GRASP55 intermediate can be aggregates/fibrils. Transmission electron microscopy and fluorescence lifetime imaging microscopy prove GRASP55 forms large amorphous aggregates but not amyloid-like fibrils in the intermediate state. These results could be helpful in discussing the proper function of human GRASP55 in the Golgi organization as well as unconventional secretion of proteins.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Reddy ST,Mendes LFS,Fontana NA,Costa-Filho AJdoi
10.1016/j.ijbiomac.2019.05.089subject
Has Abstractpub_date
2019-08-15 00:00:00pages
481-489eissn
0141-8130issn
1879-0003pii
S0141-8130(19)32378-5journal_volume
135pub_type
杂志文章abstract::Hydrogen-Deuterium exchange kinetics of β-lactoglobulin and β-lactoglobulin (-)-epicatechin solutions has been investigated through the analysis of the amide I absorption band at 1650cm-1 in the FTIR spectrum. H-D substitution in NH amides and residues of the protein results in a slight red-shift and in intensity chan...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.06.028
更新日期:2017-11-01 00:00:00
abstract::The green composite cassava starch films were prepared using stearic acid modified microcrystalline cellulose (M-MCC)/nanocellulose (M-NCC) as strength agent, which shows good mechanical and hydrophobic properties and is a candidate for food package in this work. Microcrystalline cellulose (MCC) was prepared with 98% ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.10.024
更新日期:2020-01-01 00:00:00
abstract::In this present study, a gene (ent-B) encoding the bacteriocin enterocin-B was cloned, overexpressed and purified from Enterococcus faecium por1. The molecular weight of the bacteriocin enterocin-B was observed around 7.2 kDa and exhibited antimicrobial activity against several human pathogenic bacteria. The antimicro...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.05.002
更新日期:2018-09-01 00:00:00
abstract::The gut microbe Akkermansia (A.) muciniphila becomes increasingly important as its prevalence is inversely correlated with different human metabolic disorders and diseases. This organism is a highly potent degrader of intestinal mucins and the hydrolyzed glycan compounds can then serve as carbon sources for the organi...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.01.246
更新日期:2020-04-15 00:00:00
abstract::Collagen is considered to be one of the most useful biomaterials with different medical applications. However, collagen properties differ from one source to another. The aim of this study was to extract, purify, characterize and perform preliminary biological evaluation of type I collagen from scales of Egyptian Nile ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.05.019
更新日期:2015-08-01 00:00:00
abstract::The present study describes a novel ecofriendly series of chitin/curcumin/1,4-butane diol (BDO) blend derived polyurethanes (PUs), using hydroxy terminated polybutadiene (HTPB) and hexamethylene diisocyanate (HDI) along with different mole ratio of chitin, curcumin and BDO. The structural and morphological elucidation...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.07.149
更新日期:2017-12-01 00:00:00
abstract::Heat shock proteins of 90kDa (Hsp90) are molecular chaperones essential for protein homeostasis. Besides chaperone activity, Hsp90 exhibits other cellular functions at membranes, yet how it interacts with membranes remains elusive. We report here that Hsp90B1 interacts with phospholipid membranes. We first cloned the ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.08.121
更新日期:2018-01-01 00:00:00
abstract::To screen effective anti-duck hepatitis A virus (DHAV) drugs, we applied STMP-STPP method to prepare phosphorylated Codonopsis pilosula polysaccharide (pCPPS), the phosphorylation-modified product of Codonopsis pilosula polysaccharide (CPPS). The IR spectrum and field emission scanning electron microscope (FE-SEM) wer...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.10.002
更新日期:2017-01-01 00:00:00
abstract::Prostate cancer (PC) is one of the most common human malignancies, which has been steadily rising among males in many countries. The leucine-rich repeats and immunoglobulin-like domains (LRIG) genes were applied in the prognosis of different types of cancers, including PC. In that case, this study is supposed to inves...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.11.028
更新日期:2019-03-01 00:00:00
abstract::Multidrug-resistant (MDR) bacterial infection still poses a serious threat to public health, therefore, effective and safe antimicrobial agents are urgently needed. In this study, recombinant bacteriocin BMP32 (BMP32r) prepared by the Escherichia coli expression system had a broad-spectrum antibacterial activity even ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.07.192
更新日期:2020-12-01 00:00:00
abstract::Colorectal cancer has an overexpression of galectin-3 that is related to cancer progression. A decreased risk of colon cancer can be related to consumption of dietary fibers, but the entire mechanism by which this protection occurs remains unclear. Pectin is a type of dietary fiber that possesses β-galactosides and ca...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.12.191
更新日期:2019-04-01 00:00:00
abstract::To improve the deproteinization (DP) efficacy of shrimp shell powders (SSP) for preparing chitin, Serratia marcescens B742 mutants were prepared using 2% diethyl sulfate (DES), UV-irradiation, and/or microwave heating treatments. Both single-stage and multi-stage mutations were investigated for optimizing S. marcescen...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2014.05.058
更新日期:2014-08-01 00:00:00
abstract::The present manuscript describes a novel bioassay consisting of apyrase and heat shock protein 90 (Hsp90) without additional co-chaperone supplementation; intended for high-throughput screening of anti-cancer drugs and prognosis of stress. In this regard, Hsp90 and adenosine 5'-triphosphate (ATP) mediated firefly luci...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.03.110
更新日期:2019-06-15 00:00:00
abstract::We have earlier in silico designed the 3-dimensional structure of a protein enriched with branched chain amino acids (BCAA, 56.4%), having only α-helical coiled-coil structure. Here, homology modeling was used to improve the in silico designed protein model. The secondary and tertiary structures of improved protein mo...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.10.133
更新日期:2020-03-01 00:00:00
abstract::Glycerol is an effective carbon source for the production of scl- and mcl-polyhydroxyalkanoates (PHAs) by Pseudomonas spp. P. mediterranea 9.1 (CFBP 5447) synthesizes an amorphous mcl-PHA when grown on crude glycerol, whereas on both reagent grade (RG) and partially refined (PR) glycerol, it produces two very similar ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2014.01.014
更新日期:2014-04-01 00:00:00
abstract::A series of hydroxy- and methoxy-substituted paeonol thiosemicarbazone analogues were synthesized as potential tyrosinase inhibitors and their inhibitory effects on mushroom tyrosinase and inhibitory mechanism were evaluated. Paeonol thiosemicarbazone analogues have been found exhibiting more remarkable inhibition tha...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章,评审
doi:10.1016/j.ijbiomac.2013.09.056
更新日期:2013-11-01 00:00:00
abstract::The removal of arsenic from reservoirs is a matter of great concern in many parts of the world. Since adsorption is one of the most effective methods for treating arsenic-containing media, iron oxide nanorods were prepared using cellulose nanocrystals (CNs) as a template to remove this harmful metal from aqueous solut...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.11.182
更新日期:2020-08-01 00:00:00
abstract::A water-soluble polysaccharide was isolated from Crassostrea gigas (CGPS-1) by hot-water extraction, isoelectric precipitation, hydrolysis and ultrafiltration without using ethanol. Based on the calibration with Dextran, CGPS-1 had a molecular weight of approximately 6.5×10(6) Da. CGPS-1 was analyzed using high-perfor...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.03.056
更新日期:2015-01-01 00:00:00
abstract::Starch and derivatives thereof have proven their usefulness in paper coating processes. Among these derivatives, cationic starch has been widely used in the paper industry as a flocculation, dispersion and ink fixing agent. In another context, nanoscale cellulosic materials have been shown to improve the strength, ret...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章,评审
doi:10.1016/j.ijbiomac.2020.06.131
更新日期:2020-11-01 00:00:00
abstract::Time-dependent intermolecular sulphydryl-disulphide interchange involving beta-lactoglobulin adsorbed at the oil-water interface in n-tetradecane-in-water emulsions (10 wt% oil, 0.5 wt% protein, pH 7.0) has been investigated using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). While only monome...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/0141-8130(91)90006-g
更新日期:1991-02-01 00:00:00
abstract::In the present study, a new method for the synthesis of the open cell flexible polyurethane foams (PUFs) was developed by using starch powder and the modification of closed cell foam formulation. Starch is the second largest polymeric carbohydrate as a macromolecule on this planet with a large number of glucose units....
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.01.137
更新日期:2018-05-01 00:00:00
abstract::There are different clotting factors present in blood, carries the clotting cascade and excessive bleeding may cause a deficiency in the clotting Diagnosis of this deficiency in clotting drastically reduces the potential fatality. For enabling a sensor to detect the clotting factors, suitable probes such as antibody a...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章,评审
doi:10.1016/j.ijbiomac.2018.05.084
更新日期:2018-09-01 00:00:00
abstract::The physicochemical properties of 4-α-glucanotransferase (4αGTase)-modified rice flours were examined by measuring the molecular weight distribution, moisture sorption isotherm, and melting enthalpy of ice crystals. The results obtained by measuring the moisture sorption isotherm and melting enthalpy of ice crystals r...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.04.032
更新日期:2013-09-01 00:00:00
abstract::Based on the copper (I) catalyzed Huisgen azide-alkyne cycloaddition (click chemistry), the novel synthesis of a variety of 1,2,3-triazole-linked starch derivatives was developed, including 6-hydroxymethyltriazole-6-deoxy starch (HMTST), 6-hydroxyethyltriazole-6-deoxy starch (HETST), 6-hydroxypropyltriazole-6-deoxy st...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.10.007
更新日期:2016-01-01 00:00:00
abstract::An intracellular esterase (BCE) from Bacillus cereus WZZ006 was purified to homogeneity with an 89.5-fold purification, specific activity of 1.79 U/mg, and 26.7% recovery. The estimated molecular weight of BCE was 96 kDa which was analyzed by SDS-PAGE and MALDI-TOF-MS. Activity staining denotes that BCE has an unexplo...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.08.140
更新日期:2019-11-01 00:00:00
abstract::Oxidative stress plays a critical role in the progression of myocardial injury. Increasing evidence suggests that hiruidin can treat patients with cardio-injury. However, the mechanism of hirudin against myocardial infraction remains unknown. In the present study, we evaluated the potential role and mechanism of hirud...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.06.097
更新日期:2020-11-01 00:00:00
abstract::In this report, a water-soluble polysaccharide was obtained from the dried stems of Dendrobium officinale Kimura et Migo by hot-water (70-75°C) extraction and 85% ethanol precipitation, and successively purification by DEAE-cellulose anion-exchange chromatography and gel-permeation chromatography. The D. officinale po...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.04.067
更新日期:2016-08-01 00:00:00
abstract::A novel composite hydrogel was prepared as a dual drug delivery carrier. Poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) microparticles were prepared to encapsulate simultaneously ketoprofen and mupirocin, as hydrophobic drug models. These microparticles were embedded in a physically crosslinked hydrogel of κ-carragee...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.12.193
更新日期:2020-03-01 00:00:00
abstract::Microbial and plant polysaccharides in nature are frequently exposed to oxidative burst. They may act as antioxidants buffering the radical attack. This paper presents antioxidant properties of prepared yeast mannans, commercial β-glucans as well as the chemically prepared carboxymethylated β-glucan (CM-glucan). The h...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.07.016
更新日期:2013-10-01 00:00:00
abstract::Uncontrolled bleeding has always been a sudden accident, which is the main cause of casualties in war trauma, emergency events and surgical operations. Rapid hemostatic materials can effectively reduce casualties and save lives. In this paper, marine collagen peptide grafted carboxymethyl chitosan (CMCS-MCP) was synth...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.09.006
更新日期:2020-12-01 00:00:00