Kinase anchor protein muteins, peptides thereof and related documents
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07K-007/08
C07K-007/00
C07K-014/00
출원번호
US-0428254
(2003-05-01)
등록번호
US-7432342
(2008-10-07)
발명자
/ 주소
Braun,Andreas
Cantor,Charles R.
Kammerer,Stefan M.
Taylor,Susan
Burns Hamuro,Lora
Cook,Charles
Olson,Gary
Self,Christopher
출원인 / 주소
Sequenom, Inc.
The Regents of the University of Califonia
대리인 / 주소
Grant Anderson LLP
인용정보
피인용 횟수 :
27인용 특허 :
218
초록
A-kinase anchor protein (AKAPs) muteins, peptides thereof, and nucleic acids encoding the peptides are provided herein. Also provided are transgenic animals, cells comprising transgenes and various methods employing such peptides.
대표청구항▼
What is claimed: 1. A polypeptide that is a mutein of SEQ ID NO: 2, wherein the mutein exhibits modified binding to a regulatory subunit of PKA compared to SEQ ID NO: 2 and wherein said mutein: is a peptide selected from the group consisting of a) a peptide having the sequence SEQ ID NO: 2, b) a pe
What is claimed: 1. A polypeptide that is a mutein of SEQ ID NO: 2, wherein the mutein exhibits modified binding to a regulatory subunit of PKA compared to SEQ ID NO: 2 and wherein said mutein: is a peptide selected from the group consisting of a) a peptide having the sequence SEQ ID NO: 2, b) a peptide having the sequence SEQ ID NO: 2 further comprising a C-terminal cysteine, c) a peptide having the sequence SEQ ID NO: 2 wherein residues 1-8 are deleted, and d) a peptide having the sequence SEQ ID NO: 2 wherein residues 1-8 are deleted further comprising a C-terminal cysteine; except that said peptide has an amino acid residue substitution at the residue equivalent to residue 21 of SEQ ID NO: 2 of Trp and/or Ile for Val, or an amino acid residue substitution at the residue equivalent to residue 12 of SEQ ID NO: 2 of Phe for Leu; and zero, one, or two amino acid residue substitutions selected from the group consisting of Phe, Ile, Leu, Val, His, Met, Arg, Thr, Trp, or Tyr at the residue equivalent to residue 9 of SEQ ID NO: 2 for Gln; and Phe, Ile, Leu, Thr, Val, Trp, or Tyr at the residue equivalent to residue 25 of SEQ ID NO: 2 for Met. 2. A polypeptide of claim 1, wherein the mutein exhibits modified binding to a regulatory subunit of PKA compared to a peptide having the sequence SEQ ID NO: 2. 3. The polypeptide of claim 1 that exhibits enhanced binding to PKA-RIα subunits. 4. The polypeptide of claim 3 that exhibits normal or reduced binding to PKA-RIIα subunits. 5. The polypeptide of claim 1 that exhibits reduced binding to PKA-RIIα subunits. 6. The polypeptide of claim 5 that exhibits normal or increased binding to PKA-RIα subunits. 7. The peptide of claim 1, wherein the peptide exhibits a preferred or exclusive binding to PKA-RIα subunits relative to PKA-RIIα subunits. 8. A peptide that has enhanced ability to bind to PKA-RIα subunit, and a reduced ability to bind to PKA-RIIα subunit, compared to the peptide of SEQ ID NOs:1 or 2, wherein the peptide is selected from the group consisting of: FEELAWKIAKMIWSDVMQQC; (SEQ ID NO:104; PV-37) FEELAWKIAKMIWSDVFQQC; (SEQ ID NO:103; PV-38) QEEFAWKIAKMIVSDVFQQC; (SEQ ID NO:105; PV-47) QEEFAWKIAKMIISDVFQQC; (SEQ ID NO:106; PV-48). 9. The mutein of claim 1, wherein said mutein comprises an amino acid substitution at residue 21 of Ile or Trp for Val. 10. The mutein of claim 1, wherein said mutein comprises an amino acid substitution at residue 21 of Trp for Val. 11. The mutein of claim 9, wherein said mutein comprises an amino acid substitution at residue 9 of Phe for Gln. 12. The mutein of claim 1, wherein said mutein is a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted or a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted further comprising a C-terminal cysteine. 13. The mutein of claim 9, wherein said mutein is a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted or a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted further comprising a C-terminal cysteine. 14. The mutein of claim 10, wherein said mutein is a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted or a peptide having the sequence SEQ ID NO: 2 wherein amino acids 1-8 are deleted further comprising a C-terminal cysteine. 15. A peptide that has an enhanced ability to bind to PKA-RIα subunit, and a reduced ability to bind to PKA-RIIα subunit, compared to the peptide of SEQ ID NOs:1 or 2, wherein the peptide is selected from the group consisting of: VQGNTDEAQEEFAWKIAKMIVSD[I/V]MQQ; (SEQ ID NO:51) VQGNTDEAQEELAWKIAKMIISD[I/V]MQQ; and (SEQ ID NO:52) VQGNTDEAQEELAWKIAKMILSD[I/V]MQQ. (SEQ ID NO:53) 16. A peptide that binds to the PKA-RIα subunit but has substantially no ability to bind to the PKA-RIIα subunit, compared to the peptide of SEQ ID NOs:1 or 2, wherein the peptide is VQGNTDEAQEELAWKIAKMIWSD[I/V]MQQ (SEQ ID NO:54) 17. The mutein of claim 1, wherein said mutein is FEELAWKIAKMIISDVFQQC. (SEQ ID NO:107; PV-49)
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