Human kinase proteins and polynucleotides encoding the same

Details Human kinase proteins and polynucleotides encoding the same Human kinase proteins and polynucleotides encoding the same

2001-06-15

2003-01-28

Prouty, Rebecca E. (Department: 1652)

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

C435S320100, C435S006120, C435S194000, C536S023100, C536S023200

Reexamination Certificate

active

06511840

ABSTRACT:

INTRODUCTION
The present invention relates to the discovery, identification, and characterization of novel human polynucleotides encoding a protein that shares sequence similarity with animal kinases. The invention encompasses the described polynucleotides, host cell expression systems, the encoded proteins, fusion proteins, polypeptides and peptides, antibodies to the encoded proteins and peptides, and genetically engineered animals that either lack or over express the disclosed polynucleotides, antagonists and agonists of the proteins, and other compounds that modulate the expression or activity of the proteins encoded by the disclosed polynucleotides that can be used for diagnosis, drug screening, clinical trial monitoring, the treatment of physiological disorders or diseases, and cosmetic or nutriceutical applications.
BACKGROUND OF THE INVENTION
Kinases mediate phosphorylation of a wide variety of proteins and compounds in the cell. Along with phosphatases, kinases are involved in a range of regulatory pathways. Given the physiological importance of kinases, they have been subject to intense scrutiny and are proven drug targets.
SUMMARY OF THE INVENTION
The present invention relates to the discovery, identification, and characterization of nucleotides that encode novel human proteins, and the corresponding amino acid sequences of these proteins. The novel human proteins (NHPS) described for the first time herein share structural similarity with animal kinases, including, but not limited to myosin kinases and unconventional myosin classes of proteins (SEQ ID NOS:1-5) as well as serine-threonine kinases, calcium/calmodulin-dependent kinases 10 and MAP kinases (SEQ ID NOS:6-11). As such, the novel polynucleotides encode a new kinase protein having homologues and orthologs across a range of phyla and species.
The novel human polynucleotides described herein, encode open reading frames (ORFs) encoding proteins of 238, 1,236, 974, 922 and 255 amino acids in length (see respectively SEQ ID NOS: 2, 4, 7, 9, 11).
The invention also encompasses agonists and antagonists of the described NHPS, including small molecules, large molecules, mutant NHPs, or portions thereof, that compete with native NHP, peptides, and antibodies, as well as nucleotide sequences that can be used to inhibit the expression of the described NHPs (e.g., antisense and ribozyme molecules, and gene or regulatory sequence replacement constructs) or to enhance the expression of the described NHP polynucleotides (e.g., expression constructs that place the described polynucleotide under the control of a strong promoter system), and transgenic animals that express a NHP transgene, or “knock-outs” (which can be conditional) that do not express a functional NHP. Knock-out mice can be produced in several ways, one of which involves the use of mouse embryonic stem cells (“ES cells”) lines that contain gene trap mutations in a murine homolog of at least one of the described NHPs. When the unique NHP sequences described in SEQ ID NOS:1-11 are “knocked-out” they provide a method of identifying phenotypic expression of the particular gene as well as a method of assigning function to previously unknown genes. Additionally, the unique NHP sequences described in SEQ ID NOS:1-11 are useful for the identification of coding sequence, the identification of the actual biologically relevant exon splice junctions and the mapping of a unique gene to a particular chromosome.
Further, the present invention also relates to processes for identifying compounds that modulate, i.e., act as agonists or antagonists, of NHP expression and/or NHP activity that utilize purified preparations of the described NHPs and/or NHP product, or cells expressing the same. Such compounds can be used as therapeutic agents for the treatment of any of a wide variety of symptoms associated with biological disorders or imbalances.
DESCRIPTION OF THE SEQUENCE LISTING AND FIGURES
The Sequence Listing provides the sequence of the novel human ORFs encoding the described novel human kinase proteins. SEQ ID NO:5 describes a full length NHP ORF and flanking regions.


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