"This is the peer reviewed version of the following article: [Wan Lin Yeo, Elena Heng, Lee Ling Tan, Yi Wee Lim, Yee Hwee Lim, Shawn Hoon, Huimin Zhao, Mingzi M Zhang, Fong Tian Wong. Characterization of Cas proteins for CRISPR-Cas editing in streptomycetes. Biotechnol Bioeng. 2019 Sep;116(9):2330-2338 ], which has been published in final form at [10.1002/bit.27021]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."