Optogenetic probes for measuring membrane potential
First Claim
Patent Images
1. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises at least one substitution mutation selected from the group consisting of P60S, T80S, D95H, D95Q, D106H, and F161V, wherein the position of the at least one substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
50 Citations
21 Claims
-
1. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises at least one substitution mutation selected from the group consisting of P60S, T80S, D95H, D95Q, D106H, and F161V, wherein the position of the at least one substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- 1, wherein the amino acid sequence of the variant comprises at least one substitution mutation selected from the group consisting of P60S, T80S, D95H, D95Q, D106H, and F161V, wherein the position of the at least one substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
-
11. A polynucleotide comprising a nucleic acid sequence encoding a variant polypeptide having at least 80% identity to SEQ ID NO:
- 1, wherein the variant polypeptide comprises at least one substitution mutation selected from the group consisting of P60S, T80S, D95H, D95Q, D106H, and F161V, wherein the position of the at least one substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the variant polypeptide comprises at least one substitution mutation selected from the group consisting of P60S, T80S, D95H, D95Q, D106H, and F161V, wherein the position of the at least one substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
-
12. A polynucleotide comprising a nucleic acid sequence of SEQ ID NO:
- 5 or SEQ ID NO;
6.
- 5 or SEQ ID NO;
-
13. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a first substitution mutation at position 95, and at least one second substitution mutation selected from the group consisting of P60S, T80S, D106H, and F161V, wherein the positions of the substitution mutations in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a first substitution mutation at position 95, and at least one second substitution mutation selected from the group consisting of P60S, T80S, D106H, and F161V, wherein the positions of the substitution mutations in the amino acid sequence corresponds to SEQ ID NO;
-
14. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a substitution mutation at position 95, a D106H mutation, and at least one substitution mutation selected from the group consisting of P60S, T80S, and F161V, wherein the positions of the substitution mutations in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a substitution mutation at position 95, a D106H mutation, and at least one substitution mutation selected from the group consisting of P60S, T80S, and F161V, wherein the positions of the substitution mutations in the amino acid sequence corresponds to SEQ ID NO;
-
15. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a substitution mutation at position 95 of D to Q, C, or N, and
at least one substitution mutation selected from the group consisting of P60S, T80S, and F161V; wherein the positions of the substitution mutations in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a substitution mutation at position 95 of D to Q, C, or N, and
-
16. A polynucleotide encoding a polypeptide comprising an amino acid sequence of SEQ ID NO:
- 2 or SEQ ID NO;
3.
- 2 or SEQ ID NO;
-
17. A fusion protein comprising an amino acid sequence of SEQ ID NO:
- 2 or SEQ ID NO;
3 and an amino acid sequence of a second fluorescent protein.
- 2 or SEQ ID NO;
-
18. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a D to H or D to Q substitution mutation at position 95, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a D to H or D to Q substitution mutation at position 95, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
-
19. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a P to S substitution mutation at position 60, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a P to S substitution mutation at position 60, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
-
20. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a T to S substitution mutation at position 80, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a T to S substitution mutation at position 80, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
-
21. A polypeptide comprising a variant having at least 80% identity to SEQ ID NO:
- 1, wherein the amino acid sequence of the variant comprises a D to H substitution mutation at position 106, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
1.
- 1, wherein the amino acid sequence of the variant comprises a D to H substitution mutation at position 106, wherein the position of the substitution mutation in the amino acid sequence corresponds to SEQ ID NO;
Specification