Manymulti-domain proteins have repetitive three-dimensional structures but nearly-random amino acid sequences. In the present paper, by using amodified recurrence plot proposed by us previously, we show that these amino acid sequences have hidden repetitions in fact. These results indicate that the repetitive domain structures are encoded by the repetitive sequences. This also gives a method to...

Motivation: In genome assembly, the primary issue is how to determine upstream and downstream sequence regions of sequence seeds for constructing long contigs or scaffolds. When extending one sequence seed, repetitive regions in the genome always cause multiple feasible extension candidates which increase the difficulty of genome assembly. The universally accepted solution is choosing one based...

Repetitive elements within genomic DNA are both functionally and evolutionarily informative. Discovering these sequences ab initio is computationally challenging, compounded by the fact that selection on these repeats is often relaxed; thus sequence identity between repetitive elements can vary significantly. Here we present a new application, the Monomer Identification and Isolation Program (M...

Heterochromatin is a significant component of the human genome and the genomes of most model organisms. Although heterochromatin is thought to be largely non-coding, it is clear that it plays an important role in chromosome structure and gene regulation. Despite a growing awareness of its functional significance, the repetitive sequences underlying some heterochromatin remain relatively unchara...

A multi-party quantum key distribution protocol based on repetitive code is designed in this paper for the first time. First we encode classical sequence accordance with code. Then unitary transformation of state corresponding to encoded carried out by using parameters from (t, n) threshold protocol. Furthermore, derive two thresholds whether or not reserving measured values received sequence, ...