TY - JOUR
T1 - UBL3 modification influences protein sorting to small extracellular vesicles
AU - Ageta, Hiroshi
AU - Ageta-Ishihara, Natsumi
AU - Hitachi, Keisuke
AU - Karayel, Ozge
AU - Onouchi, Takanori
AU - Yamaguchi, Hisateru
AU - Kahyo, Tomoaki
AU - Hatanaka, Ken
AU - Ikegami, Koji
AU - Yoshioka, Yusuke
AU - Nakamura, Kenji
AU - Kosaka, Nobuyoshi
AU - Nakatani, Masashi
AU - Uezumi, Akiyoshi
AU - Ide, Tomihiko
AU - Tsutsumi, Yutaka
AU - Sugimura, Haruhiko
AU - Kinoshita, Makoto
AU - Ochiya, Takahiro
AU - Mann, Matthias
AU - Setou, Mitsutoshi
AU - Tsuchida, Kunihiro
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Exosomes, a type of small extracellular vesicles (sEVs), derived from multivesicular bodies (MVBs), mediate cell-to-cell communication by transporting proteins, mRNAs, and miRNAs. However, the molecular mechanism by which proteins are sorted to sEVs is not fully understood. Here, we report that ubiquitin-like 3 (UBL3)/membrane-anchored Ub-fold protein (MUB) acts as a posttranslational modification (PTM) factor that regulates protein sorting to sEVs. We find that UBL3 modification is indispensable for sorting of UBL3 to MVBs and sEVs. We also observe a 60% reduction of total protein levels in sEVs purified from Ubl3-knockout mice compared with those from wild-type mice. By performing proteomics analysis, we find 1241 UBL3-interacting proteins, including Ras. We also show that UBL3 directly modifies Ras and oncogenic RasG12V mutant, and that UBL3 expression enhances sorting of RasG12V to sEVs via UBL3 modification. Collectively, these results indicate that PTM by UBL3 influences the sorting of proteins to sEVs.
AB - Exosomes, a type of small extracellular vesicles (sEVs), derived from multivesicular bodies (MVBs), mediate cell-to-cell communication by transporting proteins, mRNAs, and miRNAs. However, the molecular mechanism by which proteins are sorted to sEVs is not fully understood. Here, we report that ubiquitin-like 3 (UBL3)/membrane-anchored Ub-fold protein (MUB) acts as a posttranslational modification (PTM) factor that regulates protein sorting to sEVs. We find that UBL3 modification is indispensable for sorting of UBL3 to MVBs and sEVs. We also observe a 60% reduction of total protein levels in sEVs purified from Ubl3-knockout mice compared with those from wild-type mice. By performing proteomics analysis, we find 1241 UBL3-interacting proteins, including Ras. We also show that UBL3 directly modifies Ras and oncogenic RasG12V mutant, and that UBL3 expression enhances sorting of RasG12V to sEVs via UBL3 modification. Collectively, these results indicate that PTM by UBL3 influences the sorting of proteins to sEVs.
U2 - 10.1038/s41467-018-06197-y
DO - 10.1038/s41467-018-06197-y
M3 - Journal article
C2 - 30258067
SN - 2041-1723
VL - 9
SP - 3936
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -