>1qib_A mol:protein length:161 72 kDa type IV collagenase RKPKWDKNQITYRIIGYTPDLDPETVDDAFARAFQVWSDVTPLRFSRIHDGEADIMINF GRWEHGDGYPFDGKDGLLAHAFAPGTGVGGDSHFDDDELWSLGKGVGYSLFLVAAHEFG HAMGLEHSQDPGALMAPIYTYTKNFRLSQDDIKGIQELYGASP