Abstract

Mitochondrial inheritance is a the process whereby mitochondria, self-replicating organelles essential for growth, move from mother to daughter cells during cell division. We determined the Arp2/3 complex, an evolutionarily conserved complex implicated in actin dependent movement is a component of the mitochondrial motility machinery. The Arc15 subunit of the Arp2/3/ complex was recovered from salt extracted mitochondrial peripheral membrane proteins by F-actin chromatography. Arc15 is not essential for viability or actin cytoskeletal organization. However, deletion of Arc15 causes loss of growth on non-fermentable carbon sources, loss of all directed mitochondrial movement, and defects in mitochondrial morphology and motility. In addition, Arp co-localizes with mitochondria. Our studies support a novel mechanism for actin-based organelle motility: Arp2/3 complex control of mitochondrial movement and inheritance.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR011823-04
Application #
6206592
Study Section
Project Start
1999-09-01
Project End
2000-08-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
4
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
University of Washington
Department
Type
DUNS #
135646524
City
Seattle
State
WA
Country
United States
Zip Code
98195

  Publications

Xavier, Marina Amaral; Tirloni, Lucas; Pinto, Antônio F M et al. (2018) A proteomic insight into vitellogenesis during tick ovary maturation. Sci Rep 8:4698
Hollmann, Taylor; Kim, Tae Kwon; Tirloni, Lucas et al. (2018) Identification and characterization of proteins in the Amblyomma americanum tick cement cone. Int J Parasitol 48:211-224
Stieg, David C; Willis, Stephen D; Ganesan, Vidyaramanan et al. (2018) A complex molecular switch directs stress-induced cyclin C nuclear release through SCFGrr1-mediated degradation of Med13. Mol Biol Cell 29:363-375
Seixas, Adriana; Alzugaray, María Fernanda; Tirloni, Lucas et al. (2018) Expression profile of Rhipicephalus microplus vitellogenin receptor during oogenesis. Ticks Tick Borne Dis 9:72-81
Wang, Zheng; Wu, Catherine; Aslanian, Aaron et al. (2018) Defective RNA polymerase III is negatively regulated by the SUMO-Ubiquitin-Cdc48 pathway. Elife 7:
Luhtala, Natalie; Aslanian, Aaron; Yates 3rd, John R et al. (2017) Secreted Glioblastoma Nanovesicles Contain Intracellular Signaling Proteins and Active Ras Incorporated in a Farnesylation-dependent Manner. J Biol Chem 292:611-628
Thakar, Sonal; Wang, Liqing; Yu, Ting et al. (2017) Evidence for opposing roles of Celsr3 and Vangl2 in glutamatergic synapse formation. Proc Natl Acad Sci U S A 114:E610-E618
Jin, Meiyan; Fuller, Gregory G; Han, Ting et al. (2017) Glycolytic Enzymes Coalesce in G Bodies under Hypoxic Stress. Cell Rep 20:895-908
Ogami, Koichi; Richard, Patricia; Chen, Yaqiong et al. (2017) An Mtr4/ZFC3H1 complex facilitates turnover of unstable nuclear RNAs to prevent their cytoplasmic transport and global translational repression. Genes Dev 31:1257-1271
Ju Lee, Hyun; Bartsch, Deniz; Xiao, Cally et al. (2017) A post-transcriptional program coordinated by CSDE1 prevents intrinsic neural differentiation of human embryonic stem cells. Nat Commun 8:1456

Showing the most recent 10 out of 583 publications