>6u12_B mol:protein length:142 VHH R303 C33A/C102A mutant
QVKLEESGGGSVQAGGSLRLSCAASGHTYSTYAMGWFRQVPGKEREGVARINVGGSSTWYADSVRDRFTISQDNAKNTVYLQMNSLKLEDTAIYYCTLHRFANTWSLGTLNVWGQGTQVTVSSGSEQKLISEEDLNHHHHHH