Double-muscling in mammals
First Claim
1. A method for determining the presence of muscular hyperplasia in a bovine animal, the method comprising:
- obtaining a sample of material containing DNA from a said animal; and
ascertaining whether DNA having a nucleotide sequence encoding a protein having biological activity of myostatin is present by amplifying the DNA in the presence of first and second primers based on first and second nucleotide sequences encoding spaced apart regions of the protein, wherein said regions flank a naturally occurring mutation and which when present in both alleles of a said animal results in said muscular hyperplasia,wherein the absence of DNA having said nucleotide sequence indicates the presence of muscular hyperplasia in the animal.
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Accused Products
Abstract
A gene (cDNA) encoding a bovine myostatin protein. The nucleic acid coding sequence is identified as SEQ ID NO:1 and the protein sequence is identified as SEQ ID NO:2. A mutant gene (SEQ ID NO:3) in which the coding sequence lacks an 11-base pair consecutive sequence (SEQ ID NO:11) of the sequence encoding bovine protein having myostatin activity has been sequenced. It has been shown that cattle of the Belgian Blue breed homozygous for the mutant gene lacking myostatin activity are double-muscled. A method for determining the presence of muscular hyperplasia in a mammal is described. The method includes obtaining a sample of material containing DNA from the mammal and ascertaining whether a sequence of the DNA encoding (a) a protein having biological activity of myostatin, is present, and whether a sequence of the DNA encoding (b) an allelic protein lacking the activity of (a), is present. The absence of (a) and the presence of (b) indicates the presence of muscular hyperplasia in the mammal.
51 Citations
45 Claims
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1. A method for determining the presence of muscular hyperplasia in a bovine animal, the method comprising:
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obtaining a sample of material containing DNA from a said animal; and ascertaining whether DNA having a nucleotide sequence encoding a protein having biological activity of myostatin is present by amplifying the DNA in the presence of first and second primers based on first and second nucleotide sequences encoding spaced apart regions of the protein, wherein said regions flank a naturally occurring mutation and which when present in both alleles of a said animal results in said muscular hyperplasia, wherein the absence of DNA having said nucleotide sequence indicates the presence of muscular hyperplasia in the animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 44)
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9. A method for determining the presence of muscular hyperplasia in a bovine animal, the method comprising:
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obtaining a sample of the animal containing mRNA; and ascertaining whether an mRNA encoding a protein having biological activity of myostatin is present in the sample by amplifying the mRNA in the presence of first and second primers substantially complementary to first and second nucleotide sequences encoding spaced apart regions of the protein, wherein said regions flank a naturally occurring mutation and which when present in both alleles of a said animal results in said muscular hyperplasia, wherein the absence of said mRNA indicates the presence of muscular hyperplasia in the animal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining the presence of muscular hyperplasia in a mammal, the method comprising:
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obtaining a sample of material containing DNA from the mammal; and ascertaining whether (a) a sequence of the DNA encoding a protein having biological activity of myostatin, is present, and whether (b) a naturally occurring sequence of the DNA encoding an allelic protein lacking the activity of a protein having biological activity of myostatin, is present; wherein the absence of (a) and the presence of (b) indicates the presence of muscular hyperplasia in the mammal. - View Dependent Claims (20, 21, 22)
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23. A method for determining the presence of muscular hyperplasia in a mammal, the method comprising:
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obtaining a sample of material containing mRNA from the mammal; and ascertaining whether (a) a sequence of the mRNA encoding a protein having biological activity of myostatin, is present, and whether (b) a naturally occurring sequence of the mRNA encoding a truncated protein lacking the biological activity of myostatin, is present; wherein the absence of (a) and the presence of (b) indicates the presence of muscular hyperplasia in the mammal. - View Dependent Claims (25, 26, 27, 28, 29)
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24. A method for determining the presence of muscular hyperplasia in a mammal, the method comprising:
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obtaining a tissue sample of containing mRNA of the mammal; and ascertaining whether an mRNA encoding a naturally occurring mutant type myostatin protein lacking biological activity of myostatin is present, wherein the presence of a said mRNA encoding a mutant type myostatin protein indicates the presence of muscular hyperplasia in the mammal.
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30. A method for determining the myostatin genotype of a mammal, comprising:
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obtaining a sample of material containing nucleic acid of the mammal, wherein the nucleic acid is uncontaminated by heterologous nucleic acid; ascertaining whether the sample contains a (i) nucleic acid molecule encoding a protein having biological activity of myostatin; and ascertaining whether the sample contains a (ii) allelic nucleic acid molecule encoding a naturally occurring protein lacking biological activity of myostatin. - View Dependent Claims (31)
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32. A method for identifying a nucleotide sequence of a naturally occurring mutant of a gene which normally encodes a myostatin protein, of a mammal displaying muscular hyperplasia, the method comprising:
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obtaining a sample of material containing DNA from the mammal; and probing the sample using a nucleic acid probe based on a nucleotide sequence of a known gene encoding myostatin in order to identify the nucleotide sequence of the mutant gene. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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45. A method for determining the myostatin genotype of a bovine mammal, comprising:
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obtaining a sample of material containing nucleic acid of the mammal; and amplifying the nucleic acid in the presence of a primer having the nucleotide sequence corresponding to a sequence of consecutive nucleotides of the myostatin gene (SEQ ID NO;
1) which flank the nucleotide sequence identified as SEQ ID NO;
11, in order to determine whether the nucleic acid includes a mutant myostatin coding sequence from which is absent the nucleotide sequence identified as SEQ ID NO;
11.
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Specification