カテプシンW
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“Human cathepsin W, a cysteine protease predominantly expressed in NK cells, is mainly localized in the endoplasmic reticulum.”. J. Immunol. 167 (4): 2172-8. (2001). doi:10.4049/jimmunol.167.4.2172. PMID 11490002.
“Human cathepsins W and F form a new subgroup of cathepsins that is evolutionary separated from the cathepsin B- and L-like cysteine proteases.”. Adv. Exp. Med. Biol.. Advances in Experimental Medicine and Biology 477: 271-80. (2000). doi:10.1007/0-306-46826-3_29. ISBN 0-306-46383-0.