Search results for "LECTIN"

SELE (selectin E, endothelial adhesion molecule 1)

2008

This gene can be found on Chromosome 1 at location 167,958,406-167,969,803. The gene is composed of 14 exons, spanning approximately 12 kb of genomic DNA in the telomere-to-centromere orientation on chromosome region 1q22-1q25. The promoter region is not included.

Morphology of Sponge Spicules: Silicatein a Structural Protein for Bio-Silica Formation

2010

Most forms of multicellular life have developed a calcium-based skeleton, while only a few specialized organisms complement their body plan with silica, such as sponges (phylum Porifera). However, the way in which sponges synthesize their silica is exceptional. They use an enzyme, silicatein, for the polymerization/polycondensation of silica, and thereby form their highly resistant and stabile massive siliceous skeletal elements (spicules). During this biomineralization process (i.e., biosilicification), hydrated amorphous silica is deposited within highly specialized sponge cells, ultimately resulting in structures that range in size from micrometers to meters. This peculiar phenomenon has…

Purification and characterization of an f-type lectin from small-spotted catshark (Scyliorhinus canicula)serum

2010

Activity of mannose-binding lectin in centenarians

2012

Summary We analyzed MBL2 gene variants in two cohorts of centenarians, octo-nonagenarians and nonagenarians, and in the general population, one from Sardinia Island (Italy), recruited in the frame of the AKea study, and another from Campania (southern Italy), to search for haplotypes related to longevity. We also assessed in vitro the effect of mannose-binding lectin (MBL) on various human cells at different stage of senescence. The frequency of high and null activity haplotypes was significantly lower, and the frequency of intermediate activity haplotype significantly higher in centenarians and in subjects between 80 and 99 years from both the cohorts as compared each to the general popula…

One precursor, three apolipoproteins: The relationship between two crustacean lipoproteins, the large discoidal lipoprotein and the high density lipo…

2014

The novel discoidal lipoprotein (dLp) recently detected in the crayfish, differs from other crustacean lipoproteins in its large size, apoprotein composition and high lipid binding capacity, We identified the dLp sequence by transcriptome analyses of the hepatopancreas and mass spectrometry. Further de novo assembly of the NGS data followed by BLAST searches using the sequence of the high density lipoprotein/1-glucan binding protein (HDL-BGBP) of Astacus leptodactylus as query revealed a putative precursor molecule with an open reading frame of 14.7 kb and a deduced primary structure of 4889 amino acids. The presence of an N-terminal lipid bind- ing domain and a DUF 1943 domain suggests the…

Isolation and characterization of a fish F-type lectin from gilt head bream (Sparus aurata) serum.

2007

A novel fucose-binding lectin, designated SauFBP32, was purified by affinity chromatography on fucose-agarose, from the serum of the gilt head bream Sparus aurata. Electrophoretic mobility of the subunit revealed apparent molecular weights of 35 and 30 kDa under reducing and non-reducing conditions, respectively. Size exclusion analysis suggests that the native lectin is a monomer under the selected experimental conditions. Agglutinating activity towards rabbit erythrocytes was not significantly modified by addition of calcium or EDTA; activity was optimal at 37 degrees C, retained partial activity by treatment at 70 degrees C, and was fully inactivated at 90 degrees C. On western blot anal…

A serum fucolectin isolated and characterized from sea bass Dicentrarchus labrax

2001

A lectin specific for fucose and galactose was isolated by affinity chromatography on Sepharose CL-6B from the serum of Dicentrarchus labrax. The hemagglutinating activity against rabbit erythrocytes was calcium-independent, and reached its maximum at 37 degrees C. Two protein components were found in the hemagglutinating fractions eluted from the Sepharose column. Only the 34 kDa component (DLL2) eluted from the polyacrylamide gels (SDS-PAGE) showed agglutinating activity against rabbit erythrocytes. SDS-PAGE, in non-reducing conditions, revealed a single 66 kDa protein that reacted with antibodies to the 34 kDa component. Therefore, a dimeric structure stabilized by disulfide bonds can be…

Documento di consenso ANMCO/ELAS/SIBioC: Raccomandazioni sull'impiego dei biomarcatori cardiaci nello scompenso cardiaco

2016

Biomarkers have dramatically impacted the way heart failure (HF) patients are evaluated and managed. A biomarker is a characteristic that is objectively measured and evaluated as an indicator of normal biological or pathogenic processes, or pharmacological responses to a therapeutic intervention. Natriuretic peptides (B-type natriuretic peptide [BNP] and N-terminal proBNP) are the gold standard biomarkers in determining the diagnosis and prognosis of HF, and a natriuretic peptide-guided HF management looks promising. In the last few years, an array of additional biomarkers has emerged, each reflecting different pathophysiological processes in the development and progression of HF: myocardia…

Note per l’archivio fotografico di Antonino Leto

2018

Il contributo prende in esame per la prima volta una selezione di fotografie inedite che documentano opere pittoriche del pittore siciliano Antonino Leto per lo più sconosciute. Indagando l'interscambio tra pittura e fotografia in Italia alla fine del XIX secolo, l'articolo punta l'attenzione sul rapporto di Leto con il nuovo medium e consente di ampliare il corpus di dipinti del pittore anche alla luce degli scambi con i collezionisti risalendo a un fittissimo intreccio di scambi con galleristi e fotografi tra i protagonisti della cultura dell'epoca. Il saggio è stato pubblicato in occasione della mostra antologica dedicata ad Antonino Leto dalla Galleria d'Arte Moderna di Palermo dal 13 o…

MADI: A Universal Art Movement

2017

The essay focuses on MADI, an artistic phenomenon of international breadth founded by Carmelo Arden Quin in Buenos Aires in 1946 that is based on the principles of no-expression, no representation, no simbolysm. The contribution focuses on the founding moments of the movement with particular reference to the figure of Joaquin Torres Garcia and Tomas Maldonado analysing the main exhibitions in Latin America and Europe. Furthermore, the text examines the artworks on display because, despite their similarities and affinities, the works of each artist in this exhibition are autonomous and carry their individual high-profile research that finds its highest completion through MADI. The exhibition…