Ask about this productRelated genes to: RB1CC1 Blocking Peptide
- Gene:
- RB1CC1 NIH gene
- Name:
- RB1 inducible coiled-coil 1
- Previous symbol:
- -
- Synonyms:
- KIAA0203, Cc1, DRAGOU14, FIP200, ATG17, PPP1R131
- Chromosome:
- 8q11.23
- Locus Type:
- gene with protein product
- Date approved:
- 2001-06-01
- Date modifiied:
- 2016-11-01
Related products to: RB1CC1 Blocking Peptide
Related articles to: RB1CC1 Blocking Peptide
- SQSTM1/p62 (sequestosome 1) is an important receptor protein involved in many cellular signaling processes, including macroautophagy/autophagy. It is a molecular hub for cellular homeostasis and cellular responses. Within autophagy, SQSTM1 targets ubiquitinated cargo for degradation, maintaining cellular proteostasis. Structurally, SQSTM1 consists of several domains that facilitate its binding to ubiquitinated cargo, the formation of SQSTM1 aggregate inclusions, interactions with MAP1LC3/LC3, and the mediation of clearance via the autophagy pathway. Beyond its structure, post-translational modifications of SQSTM1 dynamically regulate its function within a cell. Post-translational modifications - such as phosphorylation, ubiquitination, acetylation, S-acylation, and S-nitrosylation - are crucial for regulating SQSTM1 function, localization, and interaction with autophagic components, thereby influencing SQSTM1's role in the autophagy pathway. Understanding the role of these protein modifications in modulating autophagy may provide better insight into developing therapeutic strategies for diseases with dysregulated autophagy, such as neurodegenerative diseases. This review will discuss the role of these post-translational modifications in controlling SQSTM1's localization and function in autophagy.: ABHD = α/β-hydrolase domain; AD = Alzheimer Disease; ALS = amyotrophic lateral sclerosis; ATG = autophagy related ; CSNK2/CK2 = casein kinase 2; HD = Huntington Disease; HDAC/KDAC = histone deacetylase/lysine deacetylase; HTT = huntingtin; KAT = lysine acetyltransferase; KEAP1 = kelch like ECH associated protein 1; KIR = KEAP1-interacting region; LIR = LC3-interacting region; LYPLA/APT = lysophospholipase/acyl-protein thioesterase; MAP1LC3/LC3 = microtubule associated protein 1 light chain 3; MEF = mouse embryonic fibroblast; mHTT = mutant huntingtin; MTORC1 = MTOR complex 1; NBR1 = NBR1 autophagy cargo receptor; NEDD4 = NEDD4 E3 ubiquitin protein ligase ; NO = nitric oxide; NFE2L2/Nrf2 = nuclear factor erythroid 2-factor 2; PAT = palmitoyl acyltransferase; PB1 = Phox-BEM1 domain; PE = phosphatidylethanolamine; PLEKHM1 = pleckstrin homology and RUN domain containing M1; PLK2 = polo like kinase 2; PRKA/PKA = protein kinase cAMP-activated; PPT1 = palmitoyl-protein thioesterase 1; RB1CC1 = RB1 inducible coiled-coil 1; SNCA/α-synuclein = synuclein alpha; SNO = S-nitrosothiol; SOD1 = superoxide dismutase 1; SQSTM1 = sequestosome 1; TARDBP/TDP-43 = TAR DNA binding protein ; TBK1 = TANK binding kinase 1; TAX1BP1 = Tax1 binding protein 1; TRIM = tripartite motif containing ; UBA = ubiquitin-associated domain; UBE = ubiquitin-conjugating enzyme; ULK1 = unc-51 like autophagy activating kinase 1; UPS =ubiquitin-proteasome system; USP8 = ubiquitin specific peptidase 8; ZDHHC = zDHHC palmitoyltransferase. - Source: PubMed
Publication date: 2026/08/06
Abrar FMartin D D O - Mitochondrial quality control is essential for cellular homeostasis, particularly in neurons, where mitochondrial dysfunction is implicated in the pathogenesis of neurodegenerative diseases. Mitophagy, the selective degradation of damaged or superfluous mitochondria, plays a central role in maintaining mitochondrial integrity and metabolic balance. This review provides a comprehensive overview of the best-characterized PINK1-PRKN/parkin-dependent mitophagy pathway and the expanding repertoire of PRKN-independent mechanisms, including additional ubiquitin-dependent, receptor-mediated, and lipid-mediated pathways. We explore how these pathways intersect and compensate for one another, highlighting the complexity and adaptability of mitochondrial quality control networks. Furthermore, we discuss how dysregulated mitophagy contributes to the onset and progression of neurodegenerative diseases. By examining the interplay between mitophagy pathways and their regulation under physiological and pathological conditions, this review underscores the therapeutic potential of targeting mitophagy in neurodegeneration. Future studies should aim to decode the spatiotemporal dynamics of these pathways to uncover novel opportunities for clinical intervention. AD: Alzheimer disease; ALS: amyotrophic lateral sclerosis; AMBRA1: autophagy and beclin 1 regulator 1; AMFR/GP78: autocrine motility factor receptor; AMPK: AMP-activated protein kinase; ARIH1: ariadne RBR E3 ubiquitin protein ligase 1; ATG: autophagy related; Aβ: amyloid beta; BCL2L13: BCL2 like 13; BNIP3: BCL2 interacting protein 3; BNIP3L/NIX: BCL2 interacting protein 3 like; CALCOCO2/NDP52: calcium binding and coiled-coil domain 2; CAMc: core autophagy machinery components; CSNK2/CK2: casein kinase 2; DUB: deubiquitinase; DNM1L/DRP1: dynamin 1 like; FKBP8: FKBP prolyl isomerase 8; FUNDC1: FUN14 domain containing 1; GABARAP: GABA type A receptor-associated protein; GLP-1: glucagon-like peptide 1; HD: Huntington disease; HUWE1: HECT, UBA and WWE domain containing E3 ubiquitin protein ligase 1; IMM: inner mitochondrial membrane; iPSC: induced pluripotent stem cell; LIR: LC3-interacting region; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MARCHF5: membrane associated ring-CH-type finger 5; MCL1: MCL1 apoptosis regulator, BCL2 family member; MDV: mitochondria-derived vesicle; MFN1: mitofusin 1; MFN2: mitofusin 2; MQC: mitochondrial quality control; mtDNA: mitochondrial DNA; MUL1: mitochondrial E3 ubiquitin protein ligase 1; NBR1: NBR1 autophagy cargo receptor; OMM: outer mitochondrial membrane; OMMAD: outer mitochondrial membrane-associated degradation; OPA1: OPA1 mitochondrial dynamin like GTPase; OPTN: optineurin; OXPHOS: oxidative phosphorylation; PARL: presenilin associated rhomboid like; PD: Parkinson disease; PE: phosphatidylethanolamine; PG: phagophore; PGAM5: PGAM family member 5, mitochondrial serine/threonine protein phosphatase; PINK1: PTEN induced kinase 1; PPARGC1A/PGC-1α: PPARG coactivator 1 alpha; PRKN/parkin: parkin RBR E3 ubiquitin protein ligase; PtdIns3K: phosphatidylinositol 3-kinase; RB1CC1/FIP200: RB1 inducible coiled-coil 1; RHOT1/Miro1: ras homolog family member T1; ROS: reactive oxygen species; SIAH1: siah E3 ubiquitin protein ligase 1; SMURF1: SMAD specific E3 ubiquitin protein ligase 1; SOD1: superoxide dismutase 1; SQSTM1/p62: sequestosome 1; TAX1BP1: Tax1 binding protein 1; TBK1: TANK binding kinase 1; TCA: tricarboxylic acid cycle; TFAM: transcription factor A, mitochondrial; TIMM: translocase of inner mitochondrial membrane; TOMM: translocase of outer mitochondrial membrane; Ub: ubiquitin; ULK1: unc-51 like autophagy activating kinase 1; UPRmt: mitochondrial unfolded protein response; UPS: ubiquitin-proteasome system; USP30: ubiquitin specific peptidase 30; VCP: valosin containing protein; VDAC: voltage dependent anion channel; WIPI: WD repeat domain, phosphoinositide interacting. - Source: PubMed
Publication date: 2026/08/13
Rasmussen Laura KristineGomes Moreira DianaOkarmus JustynaSimonsen AnneMeyer Morten - The pathogenesis of non-alcoholic fatty liver disease (NAFLD) remains incompletely understood, particularly the regulatory mechanisms linking autophagy dysregulation to disease progression. While impaired hepatic autophagy is known to contribute to NAFLD, the upstream factors that suppress autophagic flux under metabolic stress are not well defined. In this study, we demonstrate that galectin-1 (Gal-1) acts as a key mediator of hepatic steatosis and metabolic dysfunction by directly inhibiting autophagy. Surprisingly, overexpression of Gal-1 in mice is sufficient to trigger a series of pathological features similar to those of NAFLD, including hepatic steatosis, dyslipidemia, and insulin resistance, even in the absence of dietary challenges. Proteomic profiling revealed that Gal-1 induces a pronounced blockade of autophagic flux, evidenced by p62 accumulation and impaired LC3-II conversion. Mechanistically, Gal-1 binds the core autophagy scaffold protein FIP200, disrupting ULK complex assembly and further suppressing FIP200 expression at both transcriptional and post-translational levels. Structural mapping and binding studies identified a specific bipartite interaction interface involving Gal-1 residues TYR120/PHE134 and the claw domain of FIP200, with a binding affinity (Kd = 113.1 μM) critical for its autophagy-inhibitory function. Crucially, point mutations disrupting this interaction abolished Gal-1-mediated autophagy suppression and insulin resistance in cellular models. Our results uncover the Gal-1-FIP200 axis as a previously unrecognized regulatory node in NAFLD pathogenesis, offering a promising target for therapeutic intervention in metabolic liver disease. - Source: PubMed
Publication date: 2026/06/12
Zheng LujuanXia JingGe PengyuSheng JiaxingWang MinWei JunzhuQi YanchenMa YuemingZhao XinbinSong ChengchengFan YuyingZhou Yifa - Non-small cell lung cancer (NSCLC) accounts for 85% of all lung cancer cases. Despite significant advances in surgery, radiotherapy, chemotherapy, and targeted and immunotherapy, the overall five-year survival of NSCLC patients is still dismally low. The objective of this investigation was to evaluate the potential of LY86-AS1 as a prognostic biomarker in NSCLC and to elucidate its associated molecular regulatory network. - Source: PubMed
Publication date: 2026/06/08
Liu YangPan JianDai YuejieMan ShanwuLi JunHong Yin - Mutations in mitochondrial protein CHCHD2 and its paralog CHCHD10 were identified in patients with Parkinson disease (PD), amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD) or Alzheimer disease (AD). CHCHD2 and CHCHD10 mutations caused neurodegeneration in model animals as seen in patients, but their pathophysiological roles remain elusive. Here we reported a direct role of CHCHD2 and CHCHD10 in autophagy. We identified a protein complex composing of CHCHD2-CHCHD10-C1QBP/p32-Atg8-family proteins (ATG8s), in which each molecule interacted with another. CHCHD2, CHCHD10 and C1QBP/p32 associated with ATG8s, preferentially, GABARAPs. Disease-associated CHCHD2 and CHCHD10 mutations exhibited varied interaction with ATG8s. By binding to GABARAPs, CHCHD2 and CHCHD10 underwent autophagic degradation, and recruited the ULK1 complex. Autophagy initiation defects occurred upon transient knockdown of , and also in human iPSC-derived or dopaminergic neurons. Importantly, CHCHD2 and CHCHD10 promoted autophagy. CHCHD2 reduced protein aggregates in cells and toxic SNCA/α-synuclein species in mouse striatum. Our study thus revealed mitochondrial proteins CHCHD2 and CHCHD10 as both autophagy substrates and autophagy activators and laid groundwork for therapy targeting patients with neurodegeneration.: AA: amino acid; AD: Alzheimer disease; ALS: amyotrophic lateral sclerosis; ATG5: autophagy related 5; ATG7: autophagy related 7; ATG8: mammalian Atg8-family protein; ATG13: autophagy related 13; bafA1: bafilomycin A; C1QBPp32/gC1qRHABP1: complement component 1, q subcomponent binding protein; CHCHD2/MNRR1/MIX17B: coiled-coil-helix-coiled-coil-helix domain containing 2; CHCHD10/MIX17A: coiled-coil-helix-coiled-coil-helix domain containing 10; CHX: cycloheximide; CMA: chaperone-mediated autophagy; CRISPR: clustered regularly interspaced short palindromic repeats; CQ, chloroquine; DA: dopaminergic; DMSO: dimethyl sulfoxide; EBSS: Earle's balanced salt solution; RB1CC1/FIP200: RB1 inducible coiled-coil 1; FTD: frontotemporal dementia; GABARAP: gamma-aminobutyric acid receptorbassociated protein; GABARAPL1: GABA type A receptor associated protein like 1; GABARAPL2: GABA type A receptor associated protein like 2; hESC: human embryonic stem cells; iPSC: induced pluripotent stem cell; KO: knockout; LAMP1: lysosomal-associated membrane protein 1; LAMP2A: lysosomal-associated membrane protein 2A; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; LIR: LC3-interacting region; PD: Parkinson disease; SQSTM1/p62: sequestosome 1; TARDBP/TDP-43: TAR DNA binding protein; TH: tyrosine hydroxylase; TMR, tetramethylrhodamine; WT: wild type; UB: ubiquitin; ULK1: unc-51 like kinase 1. - Source: PubMed
Publication date: 2026/07/01
Zhou WeiZhang Maggie MenglanTang WillcynSingh Brijesh KumarZhang ZhiweiZhou LeiGoh Jaron Kim WeeTan Faith Rui EnHuang JingxiuSun QiaoyangXiao BinPriyanka GuptaSun Alfred XuyangZeng LiShen Han-MingTan Eng King