National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)
1R01 Al124491
米国
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)
1DP1 HD087988
米国
引用
ジャーナル: Nature / 年: 2019 タイトル: Structural mechanism for NEK7-licensed activation of NLRP3 inflammasome. 著者: Humayun Sharif / Li Wang / Wei Li Wang / Venkat Giri Magupalli / Liudmila Andreeva / Qi Qiao / Arthur V Hauenstein / Zhaolong Wu / Gabriel Núñez / Youdong Mao / Hao Wu / 要旨: The NLRP3 inflammasome can be activated by stimuli that include nigericin, uric acid crystals, amyloid-β fibrils and extracellular ATP. The mitotic kinase NEK7 licenses the assembly and activation ...The NLRP3 inflammasome can be activated by stimuli that include nigericin, uric acid crystals, amyloid-β fibrils and extracellular ATP. The mitotic kinase NEK7 licenses the assembly and activation of the NLRP3 inflammasome in interphase. Here we report a cryo-electron microscopy structure of inactive human NLRP3 in complex with NEK7, at a resolution of 3.8 Å. The earring-shaped NLRP3 consists of curved leucine-rich-repeat and globular NACHT domains, and the C-terminal lobe of NEK7 nestles against both NLRP3 domains. Structural recognition between NLRP3 and NEK7 is confirmed by mutagenesis both in vitro and in cells. Modelling of an active NLRP3-NEK7 conformation based on the NLRC4 inflammasome predicts an additional contact between an NLRP3-bound NEK7 and a neighbouring NLRP3. Mutations to this interface abolish the ability of NEK7 or NLRP3 to rescue NLRP3 activation in NEK7-knockout or NLRP3-knockout cells. These data suggest that NEK7 bridges adjacent NLRP3 subunits with bipartite interactions to mediate the activation of the NLRP3 inflammasome.
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Data content type: EM metadata Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata Group: Data collection / Data processing ...Data collection / Data processing / Database references / Experimental summary / Other / Source and taxonomy / Structure summary Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata カテゴリ: em_admin / em_entity_assembly ...em_admin / em_entity_assembly / em_imaging / em_software / entity / entity_poly / entity_src_gen / struct_ref / struct_ref_seq / struct_ref_seq_dif Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata Item: _em_admin.last_update / _em_entity_assembly.entity_id_list ..._em_admin.last_update / _em_entity_assembly.entity_id_list / _em_imaging.microscope_model / _em_software.category / _em_software.fitting_id / _em_software.image_processing_id / _em_software.imaging_id / _em_software.name / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_ec / _entity.pdbx_mutation / _entity_poly.pdbx_seq_one_letter_code / _entity_poly.pdbx_seq_one_letter_code_can / _entity_poly.pdbx_strand_id / _entity_src_gen.entity_id / _entity_src_gen.gene_src_common_name / _entity_src_gen.pdbx_beg_seq_num / _entity_src_gen.pdbx_end_seq_num / _entity_src_gen.pdbx_gene_src_gene / _entity_src_gen.pdbx_host_org_ncbi_taxonomy_id / _entity_src_gen.pdbx_host_org_scientific_name / _entity_src_gen.pdbx_src_id / _struct_ref.db_code / _struct_ref.entity_id / _struct_ref.pdbx_align_begin / _struct_ref.pdbx_db_accession / _struct_ref.pdbx_seq_one_letter_code / _struct_ref_seq.db_align_beg / _struct_ref_seq.db_align_end / _struct_ref_seq.pdbx_auth_seq_align_beg / _struct_ref_seq.pdbx_auth_seq_align_end / _struct_ref_seq.pdbx_db_accession / _struct_ref_seq.pdbx_strand_id / _struct_ref_seq.seq_align_beg / _struct_ref_seq.seq_align_end / _struct_ref_seq_dif.align_id / _struct_ref_seq_dif.db_mon_id / _struct_ref_seq_dif.details / _struct_ref_seq_dif.mon_id / _struct_ref_seq_dif.pdbx_auth_seq_num / _struct_ref_seq_dif.pdbx_pdb_strand_id / _struct_ref_seq_dif.pdbx_seq_db_accession_code / _struct_ref_seq_dif.pdbx_seq_db_seq_num / _struct_ref_seq_dif.seq_num
B: Interferon-induced, double-stranded RNA-activated protein kinase,Serine/threonine-protein kinase Nek7 A: Isoform 2 of NACHT, LRR and PYD domains-containing protein 3 ヘテロ分子
The sequence is according to NP_001230062.1 isoform which lacks 2 residues from N-terminus. Total ...The sequence is according to NP_001230062.1 isoform which lacks 2 residues from N-terminus. Total residues are 1034aa as compared to 1036 in UNP Q96P20.
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実験情報
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実験
実験
手法: 電子顕微鏡法
EM実験
試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法
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試料調製
構成要素
ID
名称
タイプ
Entity ID
Parent-ID
由来
詳細
1
NL3-NEK7
COMPLEX
#1
0
RECOMBINANT
2
NLRP3
COMPLEX
#2
1
RECOMBINANT
The sequence is according to NP_001230062.1 isoform which lacks 2 residues from N-terminus. Total residues are 1034aa as compared to 1036 in UNP Q96P20. There are mutations in YRKKYRKY instead its IYCAKYRAY mutations were intended to introduce so that the class of MBP and NLRP3 is avoided