Sheep wool (glycine + tyrosine)-rich keratin genes. A family of low sequence homology
نویسندگان
چکیده
منابع مشابه
Wool Keratin-Associated Protein Genes in Sheep—A Review
The importance of sheep's wool in making textiles has inspired extensive research into its structure and the underlying genetics since the 1960s. Wool keratin-associated proteins (KAPs) are a key structural component of the wool fibre. The characterisation of the genes encoding these proteins has progressed rapidly with advances in the nucleotide and protein sequencing. This review describes ou...
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Manuscript describes producing keratin hydrolysate from sheep wool through two-stage technology whose principle consists in first having wool processed in an alkaline environment during the first stage, and then effecting hydrolysis in the second stage through the action of proteolytic enzyme. Experiments were planned in accordance with factor schemes of 23 types in which factors under study we...
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We have isolated two genomic clones containing three B2 high-sulphur keratin genes from a sheep genomic library constructed in Charon 4A. These genes do not contain intervening sequences. Two genes, encoding the B2A and B2D proteins are closely linked in the genome, being separated by 1.9 kb, and are transcribed in the same direction. Although there is extensive sequence conservation in the 5' ...
متن کاملThe sheep KAP8-2 gene, a new KAP8 family member that is absent in humans
The keratin-associated proteins (KAPs) are fundamental components of hair and wool fibres, and are believed to in part be responsible for some of the properties of these fibres. KAPs can be divided into three groups: the high sulphur (HS) KAPs, the ultra-high sulphur (UHS) KAPs and the high glycine-tyrosine (HGT) KAPs. KAP8 is a HGT-KAP family and was believed to be coded for by a single gene i...
متن کاملThe sequence of SCMK-B2B, a high-sulfur protein from wool keratin.
The complete amino acid sequence of the protein subfraction B of S-carboxymethylated kerateine B2 (SCMK-BZB), a reduced and S-carboxymethylated high-sulfur protein from wool has been determined. The protein contains 156 amino acid residues; the NHa-terminal alanine residue is acetylated and the COOH-terminal residue is S-carboxymethylcysteine. The protein contains no lysine, histidine, nor meth...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1987
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1987.tb13486.x