Human SCAD family molecules

Abstract

The invention provides human SCAD family molecules (HSFM) and polynucleotides which identify and encode HSFM. The invention also provides expression vectors, host cells, antibodies, agonists, and antagonists. The invention also provides methods for diagnosing, treating, or preventing disorders associated with expression of HSFM.

1 . A substantially purified polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1. SEQ ID NO:2, a fragment of SEQ ID NO:1, and a fragment of SEQ ID NO:2.  
     
     
         2 . A substantially purified variant having at least 90% amino acid identity to the amino acid sequence of  claim 1 .  
     
     
         3 . An isolated and purified polynucleotide encoding the polypeptide of  claim 1 .  
     
     
         4 . An isolated and purified polynucleotide variant having at least 90% polynucleotide sequence identity to the polynucleotide of  claim 3 .  
     
     
         5 . An isolated and purified polynucleotide which hybridizes under stringent conditions to the polynucleotide of  claim 3 .  
     
     
         6 . An isolated and purified polynucleotide having a sequence which is complementary to the polynucleotide sequence of  claim 3 .  
     
     
         7 . An isolated and purified polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:3, SEQ ID NO:4, a fragment of SEQ ID NO:3, and a fragment of SEQ ID NO:4.  
     
     
         8 . An isolated and purified polynucleotide variant having at least 90% polynucleotide sequence identity to the polynucleotide of  claim 7 .  
     
     
         9 . An isolated and purified polynucleotide having a sequence which is complementary to the polynucleotide of  claim 7 .  
     
     
         10 . An expression vector comprising at least a fragment of the polynucleotide of  claim 3 .  
     
     
         11 . A host cell comprising the expression vector of  claim 10 .  
     
     
         12 . A method for producing a polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:1, SEQ ID NO:2, a fragment of SEQ ID NO:1, and a fragment of SEQ ID NO:2, the method comprising the steps of: 
 a) culturing the host cell of  claim 11  under conditions suitable for the expression of the polypeptide; and    b) recovering the polypeptide from the host cell culture.    
     
     
         13 . A pharmaceutical composition comprising the polypeptide of  claim 1  in conjunction with a suitable pharmaceutical carrier.  
     
     
         14 . A purified antibody which specifically binds to the polypeptide of  claim 1 .  
     
     
         15 . A purified agonist of the polypeptide of  claim 1 .  
     
     
         16 . A purified antagonist of the polypeptide of  claim 1 .  
     
     
         17 . A method for treating or preventing a cell proliferative disorder, the method comprising administering to a subject in need of such treatment an effective amount of the pharmaceutical composition of  claim 13 .  
     
     
         18 . A method for treating or preventing an inflammatory disorder, the method comprising administering to a subject in need of such treatment an effective amount of the pharmaceutical composition of  claim 13 .  
     
     
         19 . A method for treating or preventing a fatty acid and steroid metabolic disorder, the method comprising administering to a subject in need of such treatment an effective amount of the pharmaceutical composition of  claim 13 .  
     
     
         20 . A method for detecting a polynucleotide encoding the polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:1, SEQ ID NO:2, a fragment of SEQ ID NO:1, and a fragment of SEQ ID NO:2 in a biological sample, the method comprising the steps of: 
 (a) hybridizing the polynucleotide of  claim 6  to at least one of the nucleic acids in the biological sample, thereby forming a hybridization complex; and    (b) detecting the hybridization complex, wherein the presence of the hybridization complex correlates with the presence of the polynucleotide encoding the polypeptide in the biological sample.    
     
     
         21 . The method of  claim 20  further comprising amplifying the polynucleotide prior to the hybridizing step.