>4k2l_A mol:protein length:143 ThermonucleaseATSTKKLHKEPATLIKAIDGDTVKLMYKGQPMTFRLLLVDTPEFNEKYGPEASAFTKKMVENAKKIEVEFDKGQRTDKYGRGLAYQYADGKMVNEALVRQGLAKVAYVYKGNNTHEQLLRKAEAQAKKEKLNIWSEDNADSGQ