What's the difference between envelope and packet?

Envelope


Definition:

  • (n.) Alt. of Envelop

Example Sentences:

  • (1) The oral nerve endings of the palate, the buccal mucosa and the periodontal ligament of the cat canine were characterized by the presence of a cellular envelope which is the final form of the Henle sheath.
  • (2) Sequence variation in the gp116 component of cytomegalovirus envelope glycoprotein B was examined in 11 clinical strains and compared with variation in gp55.
  • (3) Thus, although ferric-enterochelin cannot penetrate the cell surface from outside, the complex that is formed within the envelope is transported normally into the cell.
  • (4) In addition, transitional macrophages with both positive granules and positive RER, nuclear envelope, negative Golgi apparatus (as in exudate- resident macrophages in vivo), and mature macrophages with peroxidatic activity only in the RER and nuclear envelope (as in resident macrophages in vivo) were found.
  • (5) Studies using serum from mice that had been immunized with synthetic peptides from the HIV envelope region suggested that this response is directed, at least in part, at several determinants of the transmembrane portion of the HIV envelope glycoprotein.
  • (6) The influence of exogenous gangliosides on the structure of the viral envelope was studied using fluorescent and photoactivatable phospholipids incorporated into the viral membrane.
  • (7) Cells infected with enveloped viruses are good systems for studying both aspects of protein glycosylation, since they contain a limited number of different glycoproteins, often with well-defined functions.
  • (8) The enzyme was removed from the cell envelope by treatment of the whole cells with sodium dodecyl sulfate, Triton X-100, sodium deoxycholate, and proteinase K.
  • (9) After virus release the major portion of precursors is assembled within an approximately 25 nm thick layer directly attached to the envelope.
  • (10) This single substitution was sufficient to abolish all detectable cleavage of the gp160 envelope precursor polypeptide as well as virus infectivity.
  • (11) The envelope glycoprotein of human immunodeficiency virus consists of two subunits, designated gp120 and gp41, derived from the cleavage of a precursor polypeptide gp160.
  • (12) Lipopolysaccharide content correlated significantly with drug uptake and sensitivity, and it appeared to determine the degree of penetration of the cell envelope by these chlorinated phenols.
  • (13) Matrix protein (36,500 daltons), one of the major polypeptides of the Escherichia coli cell envelope, is arranged in a periodic monolayer which covers the outer surface of the peptidoglycan.
  • (14) Translation of mRNA encoding vesicular stomatitis virus envelope glycoprotein G by as membrane-free ribosomal extract obtained from HeLa cells yielded a nonglycosylated protein (G1 (Mr 63,000).
  • (15) For both the single- and multiple-band signals, performance was best when the signal band(s) had a different envelope from the common envelope of the cue bands, and performance was worst when either the cue bands all had different envelopes, or the signal and cue bands all shared the same envelope.
  • (16) The data collected by several approaches reveal that assembly and maturation of vaccinia involves a tightly coupled sequence of interrelated events including the assembly of the envelope, post-translational cleavage of several virion polypeptides, and induction of the core enzymes.
  • (17) The relationship of vaccinia haemagglutinin (HA) to extracellular enveloped virus (EEV) was examined.
  • (18) April 17, 2013 The third floor isn't doing so well either: Rebecca Berg (@rebeccagberg) Capitol police email Senate offices: Police "are responding to a suspicious envelope on the third floor of the Hart Senate Office Building."
  • (19) Several fractions were extracted from the cell envelope (CE) of Neisseria meningitidis group B and characterized with regard to their morphology, antigenicity, protein composition, and toxicity.
  • (20) This preactivated merocyanine 540 was then mixed (in the dark) with tumour cells, normal cells and envelope viruses to assess its antiproliferative activity.

Packet


Definition:

  • (n.) A small pack or package; a little bundle or parcel; as, a packet of letters.
  • (n.) Originally, a vessel employed by government to convey dispatches or mails; hence, a vessel employed in conveying dispatches, mails, passengers, and goods, and having fixed days of sailing; a mail boat.
  • (v. t.) To make up into a packet or bundle.
  • (v. t.) To send in a packet or dispatch vessel.
  • (v. i.) To ply with a packet or dispatch boat.

Example Sentences:

  • (1) Massive pay packets are being used to lure foreign coaches and players from footballing nations such as Brazil in order to beautify the still dismal Chinese game.
  • (2) Patients may have difficulty in the transition from one packet of pills to the next, and missed pills that extend the hormone-free interval may contribute to the failure rate.
  • (3) Results indicate that xeroradiographic cassettes are significantly more difficult to use for complete-mouth radiographs than comparable conventional film packets.
  • (4) They opened it with a flourish to reveal a packet of Trill bird seed.
  • (5) The pay packet on offer presumably had something to do with it as well.
  • (6) Since 2010, he has worked for the Defense Advanced Research Projects Agency (Darpa), the wing of the US defense department devoted to funding and developing new technologies, from a self-steering bullet called Exacto to the packet-switching system, Arpanet, that became the internet.
  • (7) A boss on some astronomic pay packet may be held back by shame from paying his cleaners too little relative to that, but emotion will not get in the way of ruthlessness if the process all takes place behind the veil of some corporate contract.
  • (8) The consequences of manipulations such as varying the spacing of secondary synaptic folds or that between the release of multiple quantal packets of acetylcholine, are also presented.
  • (9) At the same time, for many on low pay the last several years have seen the cost of living soar as their wage packet has shrunk.
  • (10) On Monday, Touraine presided over a meeting of health officials from 10 countries, including Britain, in favour of plain-packet legislation.
  • (11) My regret at not eating these tasty snacks is soon allayed by Sara’s magical wilderness cooking skills: she somehow conjures up a three-course dinner from a few packets and a single burner.
  • (12) The paper adds that the earplugs, marketed as the 'Vuvu-Stop', have a label on the back of the packet which reads: 'Highly effective noise reduction.
  • (13) Samples made with 2 g of antibiotic per surgical packet of bone cement containing the antibiotics gentamicin, keflin, and a combination of the two were tested.
  • (14) The packets were removed on the 100th day of gestation, and the females were allowed to give birth in their outdoor corral.
  • (15) It was only after a combination of heavy taxation (price), heavy legislation (banning smoking in public places), and heavy propaganda (warnings on packets; an effective, sustained anti-smoking advertising campaign; and most crucially, education in schools) was brought to bear on a resistant tobacco industry that smoking became a pariah activity for a new generation of potential consumers, and real, lasting change took place.
  • (16) One mode is "autonomous shedding" whereby rods shed disc packets directly into the subretinal space.
  • (17) A packet of quinoa insists: “Mix with chicken stir-fry.
  • (18) Immunofluorescence and cryothin-section immunoelectron microscopy localized Pf HRP II to several cell compartments including the parasite cytoplasm, as concentrated "packets" in the host erythrocyte cytoplasm and at the IRBC membrane.
  • (19) It has to be medium-sliced, and in the waxed packet, not the plastic bag.
  • (20) A part-time mum working in Centrelink or Medicare faces the loss of rights that allow her to juggle work with her family life; her job security is under threat and all for a cut in her pay packet.