Abstract:
:The carnitine/acylcarnitine carrier from rat liver mitochondria was overexpressed in Escherichia coli. The expressed protein, recovered as inclusion bodies, was solubilized with sarkosyl and purified by Sephadex G-200 and celite chromatography. A yield of 15 mg of purified transport protein per liter of cell culture was obtained. Upon reconstitution into liposomes, the purified carrier catalyzed a [3H]carnitine/carnitine exchange inhibited by maleimides, mercurials, and sulfobetaines. Carnitine esters of various lengths were also transported. The Km for carnitine uptake was 0.47 +/- 0.11 mM, the Vmax of the exchange was 0.78 +/- 0.24 mmol/min per gram of protein, and the Ki for octanoylcarnitine was 13.5 +/- 4.3 microM. The transport properties of the recombinant carrier were virtually identical to those of the native transporter. These studies represent the first overexpression of the functionally active mitochondrial carnitine/acylcarnitine carrier, thus enabling structure/function analysis of this protein by site-directed mutagenesis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Indiveri C,Iacobazzi V,Giangregorio N,Palmieri Fdoi
10.1006/bbrc.1998.9197subject
Has Abstractpub_date
1998-08-28 00:00:00pages
589-94issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(98)99197-5journal_volume
249pub_type
杂志文章abstract::Therapeutic efficacy of a synthetic somatostatin analogue for the treatment of carcinoid tumors is still controversial. In vivo studies performed in our laboratory showed that a somatostatin analogue, SMS 201-995, significantly inhibited growth of human pancreatic carcinoid (BON) tumors xenotransplanted into athymic n...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91663-b
更新日期:1992-06-15 00:00:00
abstract::Electrofocusing of mouse small intestine mucosal cytosol yielded two prominent peaks of glutathione S-transferase activity, at pH 8.7 and pH 9.0. These intestinal transferases were indistinguishable from corresponding liver transferases in immunological reactivities and in several other properties. Dietary t-butyl-4-h...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90875-1
更新日期:1984-03-30 00:00:00
abstract::Human adipose-derived mesenchymal stem cells (hASCs) are attractive cell source for skin tissue engineering. The aim of this study was to investigate the effects of low-level light therapy (LLLT) on transplanted cluster hASC in a skin wound animal model. The hASCs were cultured in monolayer or clusters. The LLLT, hASC...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.04.059
更新日期:2015-07-03 00:00:00
abstract::PKCdelta was revealed to make a homologous protein complex that shows a high protein kinase activity upon H(2)O(2) stimulation by expressing the enzymes having different epitope tags in COS-7 cells. The association of the endogenous PKCdelta in the cells was observed by sucrose density gradients. Analysis using the mu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.12.161
更新日期:2006-03-03 00:00:00
abstract::MicroRNAs (miRNAs) are small RNA molecules, which act as post-transcriptional regulators of a gene expression, with important functions within the cell physiology. Whilst many authors have focused on the study of miRNA expression in physiological and pathological processes, various technical variables related to miRNA...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章,评审
doi:10.1016/j.bbrc.2009.09.061
更新日期:2009-12-04 00:00:00
abstract::Subpeptin JM4-A and subpeptin JM4-B are two novel antimicrobial peptides produced by Bacillus subtilis JM4. To identify putative genes involved in their production, degenerate PCR primers targeted to conserved motifs of nonribosomal peptide synthetases (NRPSs) were used. A resulting 1.2 kb PCR product had high sequenc...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.04.022
更新日期:2006-06-16 00:00:00
abstract::From a lambda UNI-ZAP XR cDNA library derived from poly(A)+RNA of human ovarian granulosa cells a cDNA clone pHG51 was isolated. Sequence analysis showed significant homology to the C-terminal region of rat ribosomal protein L8 cDNA. The 5'-end of the cDNA was completed by PCR with cloned total cDNA. Aligning of DNA s...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.2607
更新日期:1993-12-30 00:00:00
abstract::A method to prepare amyloid-like fibrils functionalized with magnetic nanoparticles has been developed. The amyloid-like fibrils are prepared in a two step procedure, where insulin and magnetic nanoparticles are mixed simply by grinding in the solid state, resulting in a water soluble hybrid material. When the hybrid ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.02.077
更新日期:2012-03-23 00:00:00
abstract::Infrared spectra of E. coli strain JM103 and transformants which overproduced recombinant proinsulin have been measured as a function of pressure up to 38 kbar. It is the first time that high-pressure infrared spectra of live bacteria have been successfully measured. In ambient conditions, spectra of the host strain J...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(87)90715-7
更新日期:1987-07-15 00:00:00
abstract::Incubation of isolated mitochondria in the presence of malonyl-CoA prevented proteolysis of the outer carnitine palmitoyltransferase by Nagarse and trypsin. Malonyl-CoA had no direct action on trypsin when present in a chromogenic assay system for proteolysis or when preincubated with the proteases in the absence of m...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(91)90150-6
更新日期:1991-07-31 00:00:00
abstract::The cis-acting element of the granulocyte-macrophage colony-stimulating factor (GM-CSF) promoter, CLE0, is required for stimulation dependent expression of the GM-CSF gene by phorbol ester (PMA) and calcium ionophore (A23187) in T cells. We recently obtained evidence that NF-CLE0 gamma, one of the CLE0-binding factors...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.2311
更新日期:1993-10-29 00:00:00
abstract::Primary effusion lymphoma (PEL) is an aggressive neoplasm caused by Kaposi's sarcoma-associated herpesvirus (KSHV). This study provides evidence that proteasomal activity is required for both survival of PEL cells stably harboring the KSHV genome and viral replication of KSHV. We evaluated the cytotoxic effects of pro...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.10.107
更新日期:2011-12-02 00:00:00
abstract::1-4 interaction scaling factors are used in AMBER forcefields to reduce the exaggeration of short-range repulsion caused by the 6-12 Lennard-Jones potential and a nonpolarizable charge model and to obtain better agreements of small-molecule conformational energies with experimental data. However, the effects of these ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.12.084
更新日期:2015-02-06 00:00:00
abstract::The yeast Saccharomyces cerevisiae mRNA capping enzyme is composed of two subunits of alpha (52 kDa, mRNA guanylyltransferase) and beta (80 kDa, RNA 5'-triphosphatase). We have isolated the alpha subunit gene (CEG1) by immunological screening. In this report, with the aid of partial amino acid sequences of purified ye...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7439
更新日期:1997-10-09 00:00:00
abstract::A hammerhead ribozyme directed against murine TNFalpha (mTNFalpha) mRNA has been constructed. In vitro studies showed that this ribozyme was released from the parent molecule by flanking cis-acting hammerhead and hairpin ribozymes. This same anti-mTNFalpha ribozyme specifically cleaved both synthetically derived subst...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.0927
更新日期:1999-07-05 00:00:00
abstract::The oxygen reaction of Nitrosomonas europaea cytochrome c oxidase containing either 2Cu or 1Cu per two heme a molecules was investigated by the flow-flash technique at 20 degrees C. The reaction profiles of the bacterial enzyme were essentially the same as those of bovine heart cytochrome c oxidase, although the rate ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91868-q
更新日期:1992-02-14 00:00:00
abstract::In eukaryotes, the poly(A)-binding protein (PABP) is one of the important factors for initiation of messenger RNA translation. PABP activity is regulated by the PABP-interacting proteins (Paips), which include Paip1, Paip2A, and Paip2B. Human Paip1 has three different isoforms. Here, we report the crystal structure of...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.04.088
更新日期:2011-05-20 00:00:00
abstract::Normal human fibroblasts stop dividing after a limited number of cell divisions termed cellular senescence. Telomere shortening has been shown to be the main factor that causes cellular senescence, however, the molecular mechanism of how telomere shortening causes cellular senescence is unclear. Here we analyze the re...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.11.146
更新日期:2004-01-16 00:00:00
abstract::Expression of ALP in F9 teratocarcinoma cells is induced by all-trans retinoic acid (ATRA) (Gianni' et al., Biochem. J. 274: 673-678, 1991). The specific ligand for retinoic acid related receptors (RXRs), 9-cis retinoic acid (9-cis RA), and three synthetic analogs binding to the alpha, beta and gamma forms of the reti...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.2242
更新日期:1993-10-15 00:00:00
abstract::Familial exudative vitreoretinopathy (FEVR) is a congenital hereditary, bilateral eye disorder which affects both retina and the vitreous body. As a first step toward the identification of the gene responsible for the X-linked disorder, we report here the results of DNA analyses from the patients and their parents of ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1666
更新日期:1993-06-15 00:00:00
abstract::Fluid flowing through the bone porosity might be a primary stimulus for functional adaptation of bone. Osteoblasts, and osteocytes in particular, respond to fluid flow in vitro with enhanced nitric oxide (NO) and prostaglandin E(2) (PGE(2)) release; both of these signaling molecules mediate mechanically-induced bone f...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.02.175
更新日期:2005-04-29 00:00:00
abstract::Acute promyelocytic leukemia (APL) is characterized by a specific chromosome translocation t(15;17), which results in the fusion of the promyelocytic leukemia gene (PML) and retinoic acid receptor alpha gene (RARalpha). APL can be effectively treated with the cell differentiation inducer all-trans retinoic acid (ATRA)...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02043-0
更新日期:2002-09-06 00:00:00
abstract::Protein kinase C (PKC) is a family of serine/threonine kinases whose activity is controlled, in part, by phosphorylation on three conserved residues that are located on the catalytic domain of the enzyme, known as the activation-loop, the turn-motif, and the C-terminal hydrophobic-motif sites. Using a panel of phospho...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.06.136
更新日期:2005-08-26 00:00:00
abstract::The acute effects of 1,25-Dihydroxy-vitamin D3 [1,25(OH)2D3] on the concentration of cytoplasmic ionized calcium [Ca2+] of cultured rat mesangial cells were studied at the single cell level by microspectrofluorometry of fura-2-loaded cells. Addition of 1,25(OH)2D3 produced an immediate increase of [Ca2]+. This rise in...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(05)81140-4
更新日期:1991-10-31 00:00:00
abstract::Earlier, we showed that antibodies specific for human serum albumin are able to bind to erythrocyte-associated albumin and inhibit complement mediated hemolysis. In the present study we determine if inhibition is occurring at the membrane attack phase of complement activation or at an earlier step. We show that althou...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.1425
更新日期:1994-04-15 00:00:00
abstract::A bacterial strain collected from Western Australia carries all the specific features of Halobacteria, an extremely halophilic archaebacteria. This strain, Halobacterium sp. aus-1, contains a retinal protein which does differ from bacteriorhodopsin but still pumps out protons in the light. This novel proton pump is na...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)80509-6
更新日期:1988-03-30 00:00:00
abstract::A method for the extraction and purification of PrP(C), in its native monomeric form, from outdated human platelet concentrates is described. Both calcium ionophore platelet activation and lysis in Triton X-100 were evaluated as methods for the extraction of soluble platelet PrP(C) in its monomeric form. Following pla...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.07.045
更新日期:2005-09-16 00:00:00
abstract::Accompanying the decrease in serum cholesterol and increase in concentration of ubiquinone in liver and its microsomes, the activity, but not the protein, of HMG-CoA reductase decreased in ubiquinone-supplemented rats. A soluble 58-kDa preparation of HMG-CoA reductase was partially inhibited on addition of ubiquinone ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(05)80021-x
更新日期:1992-05-15 00:00:00
abstract::Diabetic cardiomyopathy represents severe heart complications, and is the leading cause of morbidity and mortality among patients with diabetes. Although a few microRNAs (miRNAs) have been implicated in diabetes-related complications, a functional association between miRNAs and cardiac dysfunction in diabetic cardiomy...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.06.051
更新日期:2016-09-02 00:00:00
abstract::The recognition and removal of interstrand cross-links is perhaps the least understood of all repair pathways in eukaryotic cells. We have shown previously that uncoupling of cross-links occurs in mammalian cell extracts and have identified a number of factors that mediate this process. However, we have not observed c...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.08.042
更新日期:2005-10-14 00:00:00