594968 Disclosed is a nucleic acid encoding an antibody heavy chain that binds c-Kit comprising an amino acid sequence at least 95% identical to the amino acid sequence set forth in SEQ ID NO: 4 (MDWTWRVFCLLAVAPGAHSQVQLVQSGAEVKKPGASVKVSCKASGYTFTSYNMHWVRQAPGQGLEWMGVIYSGNGDTSYNQKFKGRVTITADKSTSTAYMELSSLRSEDTAVYYCARERDTRFGNWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYQSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK). Further disclosed is a nucleic acid comprising a nucleic acid sequence at least 95% identical to the nucleic acid set forth in SEQ ID NO: 3, wherein said nucleic acid encodes an antibody heavy chain that binds c-Kit.