Four levels in protein structural organization are commonly identified. Primary structure is a sequence of amino acids. Secondary structure is represented by regular local conformations of polypeptide chain, such as α-helix or β-strand. The combinations of two secondary structure elements are also sometimes referred to as secondary (or supersecondary) structure. The example is a β-hairpin forme...

objective: to investigate the association of c631t single nucleotide polymorphisms in spo11 gene with male infertilityfollowed by an in silico approach. spo11 is a gene involved in meiosis and spermatogenesis process, which in humans, this gene is located on chromosome 20 (20q13.2-13.3) with 13 exons. materials and methods: in a case-control study, 200 blood samples were collected from the ivf ...

Genetic variations found in the coding and non-coding regions of a gene are known to influence the structure as well as the function of proteins. Serine palmitoyltransferase long chain subunit 1 a member of α-oxoamine synthase family is encoded by SPTLC1 gene which is a subunit of enzyme serine palmitoyltransferase (SPT). Mutations in SPTLC1 have been associated with hereditary sensory and auto...