摘要:
In one embodiment, the semiconductor device includes a substrate having an impurity region, and the substrate and the impurity region have a different impurity characteristic. The semiconductor device further includes a stack of alternating first interlayer insulating layers and gate electrode layers on the substrate; at least one second interlayer insulating layer formed on the stack; a plurality of bit lines formed on the second interlayer insulating layer; and a first plurality of channel structures formed through the stack on the substrate. The first plurality of channel structures are electrically connected to respective ones of the plurality of bit lines. A second plurality of channel structures are formed through the stack on the impurity region, and the second plurality of channel structures are electrically insulated from the plurality of bit lines.
摘要:
A new casein is disclosed isolated from the milk of Korean cattle with a &bgr;-casein A1H genotype. Amino acid sequence analysis of the casein revealed a length of 209 amino acids, where, in comparison to the more conventional &bgr;-casein variant A2, at amino acid position 25, Arg is replaced by Cys, at position 88, Leu is replaced by Ile, at position 117, Gln is replaced by Glu, at position 175, Glu is replaced by Gln, and at position 195, Gln is replaced by Glu. The new casein variant disclosed can be mass produced by the selective breeding of individual bovines to produce large quantities of milk containing the new casein variant. In one example of such breeding, a female calf was born that subsequently produced the inventive casein at a yield of 4.5 kg per day. The new casein gene can be detected DNA hybridization analysis in bovines secreting the new casein. The new casein increases the absorption of casein from the small intestine about 5% in the upper region of the small intestine and about 20% in the lower region of the small intestine. Thus, this new casein can be formulated in to foodstuffs, such as infant formula, dairy products, and to treat diseases, such as osteoporosis and anemia. Further, the new casein can also be formulated into skin and hair products.
摘要:
The present invention relates to a purified casein phosphopeptide(CPP) having a novel amino acid sequence and a purified casein including same wherein the 25th Arg from N-terminal in a conventional CPP is replaced by Cys, rendering the CPPs to forming a dimer by disulfide bond. In the corresponding DNA sequence, cytosine is replaced by thymine to cause the amino acid replacement from Arginine(Arg) to Cysteine(Cys). The CPP or the casein containing same has an improved ability of solubilizing minerals and absorbing thereof in animals. The CPP or the beta-casein H containing same can be added to foodstuffs, beverages, medication, cosmetics, feed in an effective amount of enhancing a mineral absorption in animals. An oral composition comprising the beta-casein H or the inventive CPP and a pharmaceutically acceptable carrier can reduce or relieve a dentinal hypersensitivity.