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Cited by 336

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The Structure of the Necrosome RIPK1-RIPK3 Core, a Human Hetero-Amyloid Signaling Complex

Open access
Mompeán, Miguel, Li, Wenbo, Li, Jixi, Laage, Ségolène, Siemer, Ansgar B., Bozkurt, Gunes, Wu, Hao, McDermott, Ann E.·2018·Cell

Abstract

SUMMARY The RIPK1-RIPK3 necrosome is an amyloid signaling complex that initiates TNF-induced necroptosis, serving in human immune defense, cancer and neurodegenerative diseases. RIPK1 and RIPK3 associate through their RIP homotypic interaction motifs with consensus sequences IQIG (RIPK1) and VQVG (RIPK3). Using solid-state nuclear magnetic resonance we determined the high-resolution structure of the RIPK1-RIPK3 core. RIPK1 and RIPK3 alternately stack (RIPK1, RIPK3, RIPK1, RIPK3, etc.) to form heterotypic β-sheets. Two such β-sheets bind together to along a compact hydrophobic interface featuring an unusual ladder of alternating Ser (from RIPK1) and Cys (from RIPK3). The crystal structure of a four-residue RIPK3 consensus sequence is consistent with the architecture determined by SSNMR. The RIPK1-RIPK3 core is the first detailed structure of a hetero-amyloid, and provides a potential explanation for the specificity of hetero- over homo-amyloid formation and a structural basis for understanding the mechanisms of signal transduction.

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Metadata

Authors
Mompeán, M., Li, W., Li, J., Laage, S., Siemer, A. B., Bozkurt, G., Wu, H., & McDermott, A. E.
Venue
Cell
Publisher
Elsevier BV
Published
2018-05
Volume
173
Issue
5
Pages
1244-1253.e10
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2802914881
Cited by
336
References
51
FWCI
10.20
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The Structure of the Necrosome RIPK1-RIPK3 Core, a Human Hetero-Amyloid Signaling Complex. https://app.cochat.ai/papers/10.1016/j.cell.2018.03.032
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Mompeán, M., Li, W., Li, J., Laage, S., Siemer, A. B., Bozkurt, G., Wu, H., & McDermott, A. E. (2018). The Structure of the Necrosome RIPK1-RIPK3 Core, a Human Hetero-Amyloid Signaling Complex. Cell. https://doi.org/10.1016/j.cell.2018.03.032

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