What's the difference between cleave and surface?

Cleave


Definition:

  • (v. i. ) To adhere closely; to stick; to hold fast; to cling.
  • (v. i. ) To unite or be united closely in interest or affection; to adhere with strong attachment.
  • (v. i. ) To fit; to be adapted; to assimilate.
  • (v. t.) To part or divide by force; to split or rive; to cut.
  • (v. t.) To part or open naturally; to divide.
  • (v. i.) To part; to open; to crack; to separate; as parts of bodies; as, the ground cleaves by frost.

Example Sentences:

  • (1) Accordingly, when bFGF, complexed to heparin, is treated with pepsin A, an aspartic protease with a broad specificity, only the Leu9-Pro10 peptide bond is cleaved generating the 146-amino acid form.
  • (2) It was concluded that ochratoxin A was cleaved into the nontoxic ochratoxin alpha and phenylalanine by the contents from all but the abomasum.
  • (3) The 3C protease of poliovirus is distinguished from that of all other picornaviruses in that it only cleaves at Gln-Gly amino acid pairs within the viral polyprotein.
  • (4) To circumvent the restriction of having to analyze relatively short PCR fragments, restriction endonucleases were used to cleave a longer PCR product and the mixture of fragments was analyzed directly in SSCP gel electrophoresis.
  • (5) Under optimal reaction conditions, HhaI and RsaI cleaved the DMTS-std duplex to 76-77% completion and the DMTS-imp duplex to 96-99% completion.
  • (6) In the alpha 2M-thrombin, alpha 2M-plasmin, and alpha 2M-trypsin complexes, approximately 50%, 60%, and 75% of the subunits are cleaved, respectively.
  • (7) This finding suggested that cytosolic factors, removed from isolated nuclei, could influence the susceptibility of intact cells to the cytotoxic and DNA-cleaving actions of etoposide.
  • (8) Reversible chemical cross-linking with dithiobis(succinimidyl propionate) and analysis of cross-linked and cleaved complexes in sodium dodecyl sulfate-polyacrylamide gel electrophoresis confirmed that the C proteins exist as tetramers, most or all of which are composed of (C1)3C2.
  • (9) Brief digestion at neutral pH without reduction produced a molecule in which the Fab and Fc fragments were still linked by a pair of labile disulphide bridges, and the Fc fragment released by cleaving these bonds, called 1Fc fragment, contained a portion of the ;hinge' region including an interchain disulphide bridge.
  • (10) However, peptide bonds between 193 and 194, and 194 and 195 were cleaved in the presence of mAb 1C3 as easily as in the presence of mAb 31A4, suggesting that the region of residues 200 to 202 was obscured by, or within the antibody binding site, but that the region of residues 193 to 195 was not.
  • (11) We have shown that LPS induces a novel protease that functions optimally at pH 5 to cleave ACTH 1-39 into ACTH 1-22 to 1-26.
  • (12) Single-stranded linear DNAs were prepared by separating strands of duplex molecules or by cleaving single-stranded circles at a unique restriction site created by annealing a short defined oligonucleotide to the circle.
  • (13) In contrast, edited versions of CYb, COII, and COIII RNAs were not cleaved within the editing domains.
  • (14) This fusion protein exhibited an in vivo endonuclease activity which specifically cleaved the intron homing site within the intronless cob gene.
  • (15) These plasmin-cleaved peptides are derived from the COOH terminus of C2b, and they induce the contraction of estrous rat uterus.
  • (16) In contrast, phospholipase A2 treatment followed by papain digestion cleaved a fraction of these polypeptides.
  • (17) These data demonstrate that Fc epsilon RII can be internalized by ligand-induced endocytosis and subsequently cleaved in an intracellular compartment.
  • (18) The D-Phe peptides, which are cleaved especially rapidly by thrombin in water, have structures (in deuterated DMSO) in which the aromatic ring of the D-Phe residue is folded back over the Val or Pip residue.
  • (19) Substrate and product DNAs are cleaved with a restriction endonuclease and the resulting fragments are separated by electrophoresis in agarose gels.
  • (20) A comparison of two different restriction enzymes, which cleave the plasmid with blunt or cohesive-ended double-strand breaks, did not reveal differences in repair fidelity.

Surface


Definition:

  • (n.) The exterior part of anything that has length and breadth; one of the limits that bound a solid, esp. the upper face; superficies; the outside; as, the surface of the earth; the surface of a diamond; the surface of the body.
  • (n.) Hence, outward or external appearance.
  • (n.) A magnitude that has length and breadth without thickness; superficies; as, a plane surface; a spherical surface.
  • (n.) That part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion.
  • (v. t.) To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
  • (v. t.) To work over the surface or soil of, as ground, in hunting for gold.

Example Sentences:

  • (1) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
  • (2) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
  • (3) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
  • (4) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
  • (5) In the surface epithelial cells, the basolateral cell surface showed moderate enzymatic activity.
  • (6) Such an increase in antibody binding occurred simultaneously with an increase in the fluidity of surface lipid regions, as monitored by fluorescence depolarization of 1-(trimethylammoniophenyl)-6-phenyl-1,3,5-hexatriene.
  • (7) The role of Ca2+ in cell agglutination may be either to activate the cell-surface dextran receptor or to form specific intercellular Ca2+ bridges.
  • (8) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
  • (9) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
  • (10) A total of 555 caries lesions were registered on proximal surfaces, 49.1% being primary lesions in the enamel, 21.4% primary lesions into the dentin and 29.5% secondary lesions.
  • (11) Contact angles of Silafocon A and PMMA were relatively uninfluenced by front surface radii between 7.7 and 8.85 and 7.3 to 8.8 mm, respectively.
  • (12) These cells contained organelles characteristic of the maturation stage ameloblast and often extended to the enamel surface, suggesting a possible origin from the ameloblast layer.
  • (13) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
  • (14) Our Ph1-positive ALL revealed B-cell lineage leukemia, since their surface phenotype were Ia+ and CD10+ and they have rearranged immunoglobulin JH genes.
  • (15) The complete nucleotide sequence of the gene for a cell surface protein antigen (SpaA) of Streptococcus sobrinus MT3791 (serotype g) was determined.
  • (16) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
  • (17) Lysis of EAC4b,3b cellular intermediates formed to contain a low surface amount of C3b was more inhibited than was lysis of cells formed with a standard amount of C3b on the surface.
  • (18) After either 5 or 10 days of culture with both cytokines, intense immunofluorescent staining for Ia could be identified on the surface of greater than 80-90% of the viable islet cells.
  • (19) Within the capillary-perfused mucosa and muscularis (between 50 and 2000 microns from the urothelial surface), concentrations decreased by 50% for each 500-microns distance.
  • (20) Displacement of the surface of the cornea of bovine eyes after disruption of intact structures was investigated by means of holographic interferometry.