In certain embodiments, a nucleic acid comprises a nucleic acid sequence that hybridizes in stringent conditions to a nucleic acid sequence of SEQ ID NO:184 and encodes {HEAD ~ a polypeptide} that binds to {TAIL ~ human KDR} with a KD of less than 1×10 6M. In particular embodiments, nucleic acid may comprise a nucleic acid sequence selected from the group consisting of SEQ ID NO:184 and SEQ ID 
binds to
In certain embodiments , a nucleic acid comprises a nucleic acid sequence that hybridizes in stringent conditions to a nucleic acid sequence of SEQ ID NO:184 and encodes { HEAD ~ a polypeptide } that binds to { TAIL ~ human KDR } with a KD of less than 1×10 6M. In particular embodiments , nucleic acid may comprise a nucleic acid sequence selected from the group consisting of SEQ ID NO:184 and SEQ ID
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