Abstract:
:Leishmania internalize hemoglobin (Hb) via a specific receptor (HbR) for their survival. To identify the Hb-binding domain of HbR, we cloned and expressed several truncated proteins of HbR and determined their ability to bind Hb. Our findings reveal that 90% of Hb-binding activity is retained in HbR41-80 in comparison with HbR1-471 . We synthesized a 40 amino acid peptide (SSEKMKQLTMYMIHEMVEGLEGRPSTVRMLPSFVYTSDPA) corresponding to HbR41-80 and found that it specifically binds Hb. Subsequently, we found that the HbR41-80 peptide completely blocks Hb uptake in both promastigote and amastigote forms of Leishmania and, thereby, inhibits the growth of the parasite. These results demonstrate that HbR41-80 is the Hb-binding domain of HbR, which might be used as a potential therapeutic agent to inhibit the growth of Leishmania.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Rastogi R,Verma JK,Singh V,Krishnamurthy G,Sood C,Kapoor A,Kumar K,Ansari I,Mukhopadhyay Adoi
10.1002/1873-3468.14027subject
Has Abstractpub_date
2020-12-14 00:00:00eissn
0014-5793issn
1873-3468pub_type
杂志文章相关文献
FEBS LETTERS文献大全abstract::Vesicular monoamine transporters (VMAT) catalyze transport of serotonin, dopamine, epinephrine and norepinephrine into subcellular storage organelles in a variety of cells. Accumulation of the neurotransmitter depends on the proton electrochemical gradient across the organelle membrane and involves VMAT-mediated excha...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(94)01252-0
更新日期:1994-12-12 00:00:00
abstract::In higher plants, two types of nitrate transporters, NRT1 and NRT2, have been identified. In Arabidopsis, there are 53 NRT1 genes and 7 NRT2 genes. NRT2 are high-affinity nitrate transporters, while most members of the NRT1 family are low-affinity nitrate transporters. The exception is CHL1 (AtNRT1.1), which is a dual...
journal_title:FEBS letters
pub_type: 杂志文章,评审
doi:10.1016/j.febslet.2007.04.047
更新日期:2007-05-25 00:00:00
abstract::Changes in the ADP-ribosylation of total proteins and purified histones of rat liver nuclei after phenobarbital treatment (80 mg/kg, 24 h) have been studied. The [32P]NAD incorporation into total trichloroacetic acid precipitated proteins, in histone Hl and in core histones was evaluated, the specific radioactivities ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(86)80472-0
更新日期:1986-04-21 00:00:00
abstract::Muscle phosphofructokinase interacts with microtubule-associated protein-free microtubules resulting in a reduction of the overall activity of the enzyme [Lehotzky et al. (1993) J. Biol. Chem. 268, 10888-10894] and periodical cross-linking of the tubules [Lehotzky et al. (1994) Biochem. Biophys. Res. Commun. 204, 585-...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(95)01510-8
更新日期:1996-01-29 00:00:00
abstract::SARS 8b is one of the putative accessory proteins of the severe acute respiratory syndrome-associated coronavirus (SARS-CoV) with unknown functions. In this study, the cellular localization and activity of this estimated 9.6 kDa protein were examined. Confocal microscopy results indicated that SARS 8b is localized in ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2006.05.051
更新日期:2006-06-26 00:00:00
abstract::10Sa RNA is a bacterial small stable RNA, in which the 5'- and 3'-end sequences are folded into a tRNA-like structure. The RNA accepts alanine in vitro, and interacts with 70S ribosomes in the cells. In this study, we examined the ribosome-binding properties of Escherichia coli 10Sa RNA in vivo, and found that the ami...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(96)01330-0
更新日期:1996-12-16 00:00:00
abstract::Proline residues are rarely found in the three most C-terminal positions of bacterial signal peptides, and have never been found in position +1 immediately following the cleavage site. It was recently shown that a Pro+1 mutation in the E. coli maltose binding protein precursor not only prevents cleavage of the signal ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(92)80124-y
更新日期:1992-03-16 00:00:00
abstract::A large number of protein-protein interactions involved turn or loop regions. The excised linear peptides from these regions reveal complex conformational averaging. To circumvent this motional averaging and to stabilize the beta-turn conformation, extensive effort has been devoted to the design of constrained peptido...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(95)00007-v
更新日期:1995-02-13 00:00:00
abstract::The polyomavirus enhancer binding protein 2alpha (PEBP2alpha) is a DNA binding transcriptional regulatory protein that binds conserved sites in the polyomavirus enhancer, mammalian type C retroviral enhancers and T-cell receptor gene enhancers. Binding of PEBP2alpha and homologous proteins to the consensus DNA sequenc...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(00)01296-5
更新日期:2000-03-24 00:00:00
abstract::The mechanisms involved in bidirectional transport along microtubules remain largely unknown. We explored the collective action of kinesin-2 and dynein motors during transport of melanosomes in Xenopus laevis melanophores. These motors are attached to organelles through accessory proteins establishing a complex molecu...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2015.07.038
更新日期:2015-09-14 00:00:00
abstract::The transmembrane protein gp130 is the common signalling receptor subunit for the interleukin-6 (IL-6)-type cytokines. It has recently been shown that the cytoplasmic domain of gp130 contains a dileucine internalization motif and that endocytosis of gp130 occurs signal-independent. Here, we have studied whether gp130 ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(98)01559-2
更新日期:1998-12-18 00:00:00
abstract::PKD-mediated phosphorylation of class IIa HDACs frees the MEF2 transcription factor to activate genes that govern muscle differentiation and growth. Studies of the regulation and function of this signaling axis have involved MC1568 and Gö-6976, which are small molecule inhibitors of class IIa HDAC and PKD catalytic ac...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2015.03.017
更新日期:2015-04-28 00:00:00
abstract::The interaction of Fas (Apo-1) and TNF receptor-1 with their respective ligands can lead to cell death. The so-called death domain, a sequence motif present in the cytoplasmic portion of the two receptors, has been identified as a critical structural element involved in signal transduction that leads to apoptosis. Her...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(95)00931-x
更新日期:1995-09-11 00:00:00
abstract::We have investigated the activity of STAT family members throughout a mammary developmental cycle. Transcripts for Stat 5 were upregulated during pregnancy whilst STAT1 and STAT3 mRNAs were expressed at constant levels. DNA binding complexes containing both STAT5a and 5b showed differing affinities for two naturally o...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(96)01069-1
更新日期:1996-10-28 00:00:00
abstract::Human monocyte-macrophages were incubated for 24 h in Ham's F-10 medium with human low-density lipoprotein (LDL) in the presence or absence of beta-carotene, canthaxanthin or zeaxanthin, at final concentrations of 2.5, 12.5 and 25 mg/l. LDL oxidation, measured by agarose gel electrophoresis, the thiobarbituric acid as...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(96)01488-3
更新日期:1997-01-20 00:00:00
abstract::The cloning and analysis of a cDNA clone encoding the soybean metalloproteinase obtained by polymerase chain reaction (PCR) and the rapid amplification of cDNA ends (RACE) reaction are described. The cDNA was constructed from poly(A)+ RNA isolated from 15-17 day old leaves. The deduced amino acid sequence of the cDNA ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(97)00141-5
更新日期:1997-03-10 00:00:00
abstract::All the known members of the mouse Notch receptor family were examined for their biochemical function by interaction with a DNA binding protein RBP-Jkappa. mNotch2, mNotch3 and int3 (= mNotch4) were shown to interact with RBP-Jkappa by the GST-fusion pull down assay and dominant negative competition with Epstein Barr ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(96)01046-0
更新日期:1996-10-21 00:00:00
abstract::Polyglutamine tract-binding protein 1 (PQBP1) is an intrinsically disordered protein abundantly expressed in the brain. Mutations in the PQBP1 gene are causative for X-linked mental retardation disorders. Here, we investigated the structure of the C-terminal segment within the context of full-length PQBP1. We produced...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2014.10.028
更新日期:2014-12-20 00:00:00
abstract::Incubation of phosphatidylethanolamine containing liposomes with malondialdehyde and other aldehydes with different chain lengths results in the fluorescence of chromolipids. Relative to malondialdehyde, the fluorescence was greatly enhanced with increasing chain length upon incubation of 2-alkenals with phospholipids...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(87)80559-8
更新日期:1987-12-21 00:00:00
abstract::Conserved residues of the proteolytic domain of Escherichia coli protease Lon, putative members of the classic catalytic triad (H665, H667, D676, and D743) were identified by comparison of amino acid sequences of Lon proteases. Mutant enzymes containing substitutions D676N, D743N, H665Y, and H667Y were obtained by sit...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(98)00012-x
更新日期:1998-01-30 00:00:00
abstract::Cytosolic Ca2+ concentration and membrane potential were monitored in individual cultured endothelial cells mechanically stimulated with a micropipette attached to the stage of a microscope. Both dimpling and poking of endothelial cells resulted in Ca2+i transients (from 63 +/- 12 to 397 +/- 52 nM, characterized by a ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(88)80340-5
更新日期:1988-11-21 00:00:00
abstract::Rubrivivax gelatinosus is a facultative phototrophic non-sulfur bacterium belonging to the beta subclass of the purple bacteria. A terbutryn-resistant mutant of R. gelatinosus has been isolated and characterized. Increased resistance levels to terbutryn (300-fold), atrazine (6-fold) and o-phenanthroline (3-fold) were ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(95)01055-j
更新日期:1995-10-23 00:00:00
abstract::It is shown that the proteins encoded by the tumor suppressor fat gene, the neurogenic slit gene and crumbs gene of Drosophila contain domains homologous with modules identified previously in laminin A. These proteins of Drosophila have a number of features in common: they have large extracellular regions containing l...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(92)80051-h
更新日期:1992-02-24 00:00:00
abstract::We have studied the nuclear magnetic resonance solution secondary structure of the N-terminal region in human erythroid alpha-spectrin using a recombinant model peptide of alpha-spectrin consisting of residues 1-156. Pulsed field gradient diffusion coefficient measurements show that the model peptide exists as a monom...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(00)02186-4
更新日期:2000-11-17 00:00:00
abstract::Contribution of phosphatidic acid (PA) generated by activated phospholipase (PL) D to PLA2 activation was studied in rat peritoneal mast cells. Exogenous didecanoyl PA induced arachidonate liberation in the permeabilized cells which was inhibited by p-bromophenacyl bromide. Upon exposure of the cells to ethanol in a h...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(93)81440-b
更新日期:1993-05-24 00:00:00
abstract::Vitamin D3, cholecalciferol, induces cell-cell communication via gap junctions in murine fibroblasts (C3H/10T 1/2 cells) at concentrations between 0.01 and 1.0 microM, as assayed by the dye transfer method using Lucifer yellow CH. The extent of induction is similar to that obtained with the positive controls, canthaxa...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(94)00858-2
更新日期:1994-09-19 00:00:00
abstract::Based on the amino acid alignment, Caenorhabditis elegans F32D1.1 was identified to be a homologue of the mammalian fidgetin. We produced and purified the F32D1.1 protein by using a baculovirus-expression system. F32D1.1 has an ATPase activity, which is sensitive to N-ethylmaleimide. Km and Vmax for the ATPase activit...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2004.11.009
更新日期:2004-12-03 00:00:00
abstract::Endothelin-1 (ET-1) dose-dependently increased HIF1α expression in pulmonary artery smooth muscle cells (PASMCs). Inhibition of protein synthesis did not affect ET-1-induced HIF1α expression. The maximum effect of ET-1 was similar to that caused by proteasome inhibitor MG132. Further study indicates that ET-1 also dos...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2012.08.036
更新日期:2012-11-02 00:00:00
abstract::Sigma factor binding proteins are involved in modifying the promoter preferences of the RNA polymerase in bacteria. We found the nuclear encoded protein (SibI) that is transported into chloroplasts and interacts specifically with the region 4 of Sig1 in Arabidopsis. SibI and its homologue, T3K9.5 are novel proteins, w...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(02)02388-8
更新日期:2002-03-13 00:00:00
abstract::Glycogen storage diseases type 1 (GSD 1) are a group of autosomal recessive disorders characterized by impairment of terminal steps of glycogenolysis and gluconeogenesis. Mutations of the glucose-6-phosphatase gene are responsible for the most frequent form of GSD 1, the subtype 1a, while mutations of the glucose-6-ph...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(99)01248-x
更新日期:1999-10-08 00:00:00