hnRNP A2/B1 proteins are among the most abundant pre-mRNA-binding proteins of vertebrates and structurally similar to hnRNP A1. We have produced two specific monoclonal antibodies against A2 and B1 and studied their molecular characteristics and in vivo expression in rat tissues. Immunoprecipitation demonstrated that the hnRNP A2/B1 complexes contain many snRNP (small nuclear ribonucleoprotein)...

Cyclin A2 is a key player in the regulation of the cell cycle. Its degradation in mid-mitosis depends primarily on the ubiquitin-proteasome system (UPS), while autophagy also contributes. However, a fraction of cyclin A2 persists beyond metaphase. In this work, we focus on cyclin A2-rich foci detected in mitosis by high resolution imaging and analyse their movements. We demonstrate that cyclin ...

(2)1 For every real number a such that 1 ≤ a holds a ≤ a2. (3) For every real number a such that −1 ≥ a holds −a ≤ a2. (4) For every real number a such that −1 > a holds −a < a2. (5) For all real numbers a, b such that b2 ≤ a2 and a ≥ 0 holds −a ≤ b and b ≤ a. (6) For all real numbers a, b such that b2 < a2 and a ≥ 0 holds −a < b and b < a. (7) For all real numbers a, b such that −a ≤ b and b ≤...

HLA-A2 is the most frequent HLA-A allele in all ethnic populations, and an important restriction element for peptide presentation to T cells in infectious disease and cancer. However, the HLA-A2 supertype consisting of up to 75 subtypes, mutation studies and analyses using cytotoxic T lymphocytes suggest the functional relevance of subtype-specific differences in HLA-A2 molecules for peptide bi...

Cyclin A2 is a key player in the regulation of the cell cycle. Its degradation in mid-mitosis relies on the ubiquitin-proteasome system (UPS). Using high-resolution microscopic imaging, we find that cyclin A2 persists beyond metaphase. Indeed, we identify a novel cyclin-A2-containing compartment that forms dynamic foci. Förster (or fluorescence) resonance energy transfer (FRET) and fluorescence...

We generalize and prove a hypothesis by V. Arnold on the parity of Frobenius number. For the case of symmetric semigroups with three generators of Frobenius numbers we found an exact formula, which in a sense is the sum of two Sylvester’s formulaes. We prove that the fraction of the symmetric semigroups is vanishing in the weak limit. 1. Definitions Take n mutually prime numbers a1, a2, ..., an...