Spider silk protein
First Claim
Patent Images
1. A purified recombinant spider silk protein, having a molecular weight of at least 16,000 daltons, comprising a polypeptide selected from the group consisting of:
- a polypeptide having the amino acid sequence of SEQ. ID. NO.;
2;
a polypeptide having the amino acid sequence of SEQ. ID. NO.;
4;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
5;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
6;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
7;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
12 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
13;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
8 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
12 in turn linked by a peptide bond to the amino acid sequence of SEQ. ID. NO.;
9;
a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
8 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
12 in turn linked by a peptide bond to the amino acid sequence of SEQ. ID. NO.;
10.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to isolated cDNA which codes for spider silk protein or a fragment or variant thereof, a replicable vector containing cDNA which codes for spider silk protein and which is capable of expressing spider silk protein, a transformed cell or microorganism containing cDNA which codes for spider silk protein or a fragment thereof which is capable of expressing spider silk protein and products, such as fibers, which may be manufactured utilizing the recombinant protein of the present invention.
-
Citations
24 Claims
-
1. A purified recombinant spider silk protein, having a molecular weight of at least 16,000 daltons, comprising a polypeptide selected from the group consisting of:
-
a polypeptide having the amino acid sequence of SEQ. ID. NO.;
2;a polypeptide having the amino acid sequence of SEQ. ID. NO.;
4;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
5;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
6;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
7;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
12 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
13;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
8 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
12 in turn linked by a peptide bond to the amino acid sequence of SEQ. ID. NO.;
9;a polypeptide comprising tandem repeats of the amino acid sequence of SEQ. ID. NO.;
8 linked by a peptide bond to the amino terminus of the amino acid sequence of SEQ. ID. NO.;
12 in turn linked by a peptide bond to the amino acid sequence of SEQ. ID. NO.;
10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A purified silk protein which comprises a polypeptide having an amino acid sequence comprising repeating units of the hexamer GGXGZG, SEQ. ID. NO.:
- 69, wherein X and Z are any amino acid, but are most often glutamine or alanine.
- View Dependent Claims (11, 12, 13, 14, 15)
-
16. A purified silk protein which comprises a polypeptide having an amino acid sequence comprising repeating units of the hexamer GGXGZG, SEQ. ID. NO.:
- 69, and of polyalanine, wherein X and Z can be any amino acid, but wherein about 46% of X residues are alanine and about 49% of X residues are glutamine and wherein about 49% of Z residues are alanine and about 46% of Z residues are glutamine and wherein the number of alanine residues in said polyalanine ranges from 4 to 7.
-
17. A purified silk protein which comprises a polypeptide having an amino acid sequence comprising repeating units having the amino acid sequence GPGQQGPGYYGPGQQGPSGPGS, SEQ. ID. NO.:
- 8.
- 18. A purified protein which comprises repeating units which contain a sequence represented by the formula
- space="preserve" listing-type="equation"> (A).sub.m (X).sub.n !.sub.p
wherein m is 4 to 10, n is 10 to 20, p is an integer of 1 to 100 and each X, which may be the same or different, is selected from the group consisting of G, A, Q, Y and L, wherein at least 50% of the X'"'"'s are G, wherein said protein has a molecular weight of at least 16,000 daltons. - View Dependent Claims (23, 24)
- 19. A purified silk protein which comprises repeats of a polypeptide that is described by the general formula
- space="preserve" listing-type="equation">(vα
β
)
wherein; v is a polypeptide of consensus sequence (A or G or S)GRGGL(A or G)GQ, SEQ. ID. NO.;
63;α
is a polypeptide of consensus sequence GAGA(A or S or V) (A)m, where m is 4 to 6, SEQ. ID. NO.;
64;β
is a polypeptide of consensus sequence GGAGQ(G or R or E)GY(G or R)GL(G or V) (G or S or N)QG, SEQ. ID. NO.;
65. - space="preserve" listing-type="equation">(vα
- 20. A purified silk protein which comprises repeats of a polypeptide that is described by the general formula
- space="preserve" listing-type="equation">(β
α
v)
wherein; β
is a polypeptide of consensus sequence GP(G or R)QQGPG(G or R)Y(G or A) PGQQG(P or L)SG(P or A) GS, SEQ. ID. NO.;
66;α
is a polypeptide of consensus sequence A(A or S)AA(A or S)AA(A or S)A, SEQ. ID. NO.;
67; andv is a polypeptide of consensus sequence GPGQQG(P or L)GGY, SEQ. ID. NO.;
68. - space="preserve" listing-type="equation">(β
-
21. A purified protein comprising repeating units selected from the group consisting of ##STR13## and mixtures thereof.
-
22. A purified protein comprising a polypeptide having an amino acid sequence comprising repeating units of the hexamer GGXGZG, wherein X and Z are any amino acid, SEQ. ID. NO.:
- 69, but are most often glutamine or alanine and further comprising repeating units having the amino acid sequence (A)m GGAGQGGYGGLGGQG, wherein m is 6 or 7, SEQ. ID. NO.;
5.
- 69, but are most often glutamine or alanine and further comprising repeating units having the amino acid sequence (A)m GGAGQGGYGGLGGQG, wherein m is 6 or 7, SEQ. ID. NO.;
Specification