Most non-communicable diseases are associated with dysfunction of proteins or protein complexes. The relationship between sequence and structure has been analyzed for a long time, the analysis sequences organization in domains motifs remains an actual research area. Here, we propose mathematical method revealing hierarchical sequences. is based on pentapeptide as unit Employing frequency occurr...

a profile hidden markov model (phmm) is widely used in assigning protein sequences to protein families. in this model, the hidden states only depend on the previous hidden state and observations are independent given hidden states. in other words, in the phmm, only the information of the left side of a hidden state is considered. however, it makes sense that considering the information of the b...

beet yellows virus belong to the genus closterovirus in the closteroviridae family which is one the most important viruses of sugar beet worldwide. in order to identify and characterize some molecular aspects of the byv, 48 symptomatic leaf samples of sugar beet were collected from sugar beet field in khorasan razavi province of iran. leaves showing general yellowing, vein clearing and thicknes...

Medicinal use of the opium poppy (Papaver somniferum L) has ancient history, but the isolation of morphine was not described until the early nineteenth century. Morphine is the most important alkaloid of opium poppy in the last 50 years. In the morphine pathway has been reported to generate morphine in this species, CODM has a crucial role as the gene coding the enzyme respons...