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@ARTICLE{Mokranjac:81236,
author = {Mokranjac, Dejana and Bourenkov, Gleb and Hell, Kai and
Neupert, Walter and Groll, Michael},
title = {{S}tructure and function of {T}im14 and {T}im16, the {J}
and {J}-like components of the mitochondrial protein import
motor},
journal = {The EMBO journal},
volume = {25},
number = {19},
issn = {0261-4189},
address = {Hoboken, NJ [u.a.]},
publisher = {Wiley},
reportid = {PHPPUBDB-3315},
pages = {4675-4685},
year = {2006},
abstract = {The import motor of the mitochondrial translocase of the
inner membrane (TIM23) mediates the ATP-dependent
translocation of preproteins into the mitochondrial matrix
by cycles of binding to and release from mtHsp70. An
essential step of this process is the stimulation of the
ATPase activity of mtHsp70 performed by the J cochaperone
Tim14. Tim14 forms a complex with the J-like protein Tim16.
The crystal structure of this complex shows that the
conserved domains of the two proteins have virtually
identical folds but completely different surfaces enabling
them to perform different functions. The Tim14-Tim16 dimer
reveals a previously undescribed arrangement of J and J-like
domains. Mutations that destroy the complex between Tim14
and Tim16 are lethal demonstrating that complex formation is
an essential requirement for the viability of cells. We
further demonstrate tight regulation of the cochaperone
activity of Tim14 by Tim16. The first crystal structure of a
J domain in complex with a regulatory protein provides new
insights into the function of the mitochondrial TIM23
translocase and the Hsp70 chaperone system in general.},
keywords = {Amino Acid Sequence / Crystallography, X-Ray / Dimerization
/ Evolution, Molecular / Membrane Transport Proteins:
chemistry / Membrane Transport Proteins: metabolism /
Mitochondrial Membrane Transport Proteins / Mitochondrial
Proteins: chemistry / Mitochondrial Proteins: metabolism /
Models, Molecular / Molecular Motor Proteins: chemistry /
Molecular Motor Proteins: metabolism / Molecular Sequence
Data / Protein Structure, Secondary / Protein Structure,
Tertiary / Protein Subunits: chemistry / Protein Subunits:
metabolism / Protein Transport / Saccharomyces cerevisiae:
chemistry / Saccharomyces cerevisiae: metabolism /
Saccharomyces cerevisiae Proteins: chemistry / Saccharomyces
cerevisiae Proteins: metabolism / Sequence Alignment /
Structure-Activity Relationship / Membrane Transport
Proteins (NLM Chemicals) / Mitochondrial Membrane Transport
Proteins (NLM Chemicals) / Mitochondrial Proteins (NLM
Chemicals) / Molecular Motor Proteins (NLM Chemicals) /
Pam16 protein, S cerevisiae (NLM Chemicals) / Protein
Subunits (NLM Chemicals) / Saccharomyces cerevisiae Proteins
(NLM Chemicals) / Tim14 protein, S cerevisiae (NLM
Chemicals)},
cin = {MPG(-2012)},
ddc = {570},
cid = {$I:(DE-H253)MPG_-2012_-20120307$},
pnm = {DORIS Beamline BW6 (POF1-550)},
pid = {G:(DE-H253)POF1-BW6-20130405},
experiment = {EXP:(DE-H253)D-BW6-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:16977310},
pmc = {pmc:PMC1590002},
UT = {WOS:000241078000025},
doi = {10.1038/sj.emboj.7601334},
url = {https://bib-pubdb1.desy.de/record/81236},
}