At first, an immature form of the virus particle is produced inside the ER, whose M-protein is not yet cleaved to its mature form and is therefore denoted as prM ( precursor M ) and forms a complex with protein E. The immature particles are processed in the Golgi apparatus by the host protein furin, which cleaves prM to M. This releases E from the complex which can now take its place in the mature, infectious virion.

At first, the most light sensitive ( containing more retinal ) protein rhodopsin is influenced.

At the 5 ' end of the genome is a virus-encoded protein, and like mammalian mRNA, there is a 3 ' poly-A tail.

At times, even with sufficient calcium in the soil, it can be in an insoluble form and is then unusable by the plant or it could be attributed to a " transport protein ".

At the same time protein digestion is occurring, mechanical mixing occurs by peristalsis, which are waves of muscular contractions that move along the stomach wall.

At this stage the thymocyte must produce a TCRβ beta chain that can be translated into protein and travel to the cell surface with a Pre-T alpha chain.

At this point, the body also uses small amounts of protein to supplement this fuel.

At the time when the first complete antibody sequence was determined ( 1969 ) it was the largest complete protein sequence that had ever been determined.

At the molecular level this is associated with overexpression of heat shock and erythrocyte binding surface proteins with the reduced expression of a cell-cycle regulator and a DNA biosynthesis protein.

At the core is a single helical strand of genomic RNA tightly bound to N ( nucleocapsid ) protein and associated with the L ( large ) and P ( phosphoprotein ) proteins which provide RNA polymerase activity during replication.

At the same synapse ( but not the unstimulated synapse ), local protein synthesis creates a short-lived ( less than three hours ) synaptic tag.

At this stage raw lysate contains the recombinant protein among many other proteins originating from the bacterial host.

At least four nonclassical ( unconventional ) protein secretion pathways have been described.

At the end of a protein purification, the protein often has to be concentrated.

At this point, attempts to correct the disorder by giving food or protein are futile.

At least in primates, it is a specialized muscle protein found only in the temporalis and masseter muscles of the jaw.

* At the ventral end of the embryo, blastoderm nuclei exposed to high concentrations of dorsal protein induce the transcription of twist and snail while repressing zerknüllt & decapentaplegic.

* At the dorsal end of the embryo, blastoderm nuclei exposed to little or no dorsal protein express only zerknüllt & decapentaplegic.

At times, a change to one amino acid in the protein is not detrimental to the organism as a whole.

At first he thought Bane was a pushover ( he was puzzled whether to punch him, or feed him a protein shake ), but after seeing him enhanced with Venom, he began to think twice.

At the cellular level, mutations can cause alterations in protein function and regulation.

At the neutral pH outside of the cell the E2 envelope protein covers the E1 protein.

At the national and international level, then, what is the highest kind of morality for the private citizen represents an instance of political immorality.

At the central level the scrutin uninominal voting system was selected over some form of the scrutin de liste system, even though the latter had been recommended by Duverger and favored by all political parties.

At the policy level, common goals of agriculture include:

At this level we do not need to mention how the machine manages its tape or head.

At this level we do not give details of states or transition function.

At the molecular level, an antigen can sometimes be characterized by its ability to be " bound " at the antigen-binding site of an antibody.

At a schematic level, that basic worm-shape continues to be reflected in the body and nervous system architecture of all modern bilaterians, including vertebrates.

At high levels of play, the backhand serve has become popular to the extent that forehand serves have become fairly rare at a high level of play.

At the start of 2007, the BWF introduced a new tournament structure for the highest level tournaments aside from those in level one: the BWF Super Series.

At the time of his retirement from the England team in 1970, he was the nation's most capped player, having turned out 106 times at the highest level.

At the broadest level Micah can be divided into three roughly equal parts:

At this level students could start to move on their own.

At the lowest level, executable code consists of machine language instructions specific to an individual processor.

At the level of the individual, pressing psychological needs may influence the process, and certain of our universal mental tools may impose epistemic ' blind spots '.

At the group or sociological level, historic factors may make the process of assigning satisfactory meanings more or less problematic.

At the Master's level and higher, students tend to specialize in a particular field.

At a deeper level, there are still basic conceptual issues that remain unresolved.

At the most basic level, this involves establishing what form of currency the country may have, whether a fiat currency, gold-backed currency ( disallowed for countries with membership of the International Monetary Fund ), currency board or a currency union.

At the federal level, it forms a common ' CDU / CSU ' faction in the Bundestag with the CDU, which is frequently referred to as the Union Faction ( die Unionsfraktion ).

At, the Channel Tunnel possesses the longest undersea portion of any tunnel in the world, although the Seikan Tunnel in Japan is both longer overall at and deeper at below sea level.

At the simplest level, the process of composting simply requires making a heap of wetted organic matter ( leaves, " green " food waste ) and waiting for the materials to break down into humus after a period of weeks or months.

At the end of glacials with sea level rapidly rising, corals become major sinks for Carbon dioxide as the reefs grow up to the new sea level.

At the circuit level, there are various techniques that can be used to measure current: