In these enzymes, a nearby His side chain lowers the pKa of a catalytic Cys, enabling a nucleophilic attack on isopeptide linkages. A third residue (usually Asn or Asp) aligns and polarizes the ...

Note: Beside the main anime, Attack on Titan also includes OVAs, spin-offs, and movies. We have only included the canon and anime-only features that are important to the story in our article. Attack ...

This was not part of the show. At a circus in Wanrong County, China, spectators gasped in horror when an adolescent lion suddenly attacked a man through the bars of ...

A female swimmer has died in a shark attack in the waters off a popular tourist spot on Australia’s east coast, authorities said. Emergency crews were called to the Woorim Beach at Bribie Island ...

Gunman believed to be among the dead, say police Deadliest gun attack to take place in Sweden Attacker's motive unknown, investigation under way Sweden faces wave of shootings but school attacks ...

DNA polymerases carry out crucial functions in many DNA metabolic processes. Polymerases catalyse the addition, using a template, of complementary nucleotides to the 3′ end of DNA primer strands.

Misfolded proteins are the main common feature of neurodegenerative diseases, thereby, normal proteostasis is an important mechanism to regulate the neural survival and the central nervous system ...

A Russian strike on a residential building in central Ukraine killed at least 14 people, including two children, emergency services said, one of many attacks across the country this weekend.

He added that 11,000 head of cattle were taken. Olum Pole Pole Ataruk, the commissioner of Magwi county, the site of the attacks, and Elia John Ahaji, the information minister of Eastern Equatoria ...

The word "probability" over and over again on a page; most are light green but one in center is dark green ...

A 17-year-old girl has died in a shark attack at Bribie Island, north of Brisbane. Paramedics from the Queensland Ambulance Service were called to Woorim Beach shortly before 5pm. It is ...

This article will review the mechanisms of activation of alternative, classical, and lectin pathways, the formation of C3 and C5 convertases, the action of anaphylatoxins, and the ...