CCDC22 deficiency in humans blunts activation of proinflammatory NF-κB signaling

In “CCDC22 regulates the cellular localization of COMMD proteins” (page not provided), the paper reports a modest decrease in CCDC22 protein in cells from people with the T17A mutation and impaired binding of that protein to COMMD1. It describes the affected family as having XLID and other developmental abnormalities, not Ritscher-Schinzel syndrome, and does not establish reduced levels of CCC subunits generally or test the CCC complex under that name. (LLM, conf=0.84)

In “COMMD proteins associate with CCDC22, a broadly expressed gene,” the paper reports that all 10 COMMD proteins interact with CCDC22. The Discussion proposes distinct CCDC22–COMMD complexes rather than one containing all 10 at once. Our copy does not establish CCDC93 as a component or describe the three-part CCC complex claimed here (searched: CCDC93, CCC complex). (LLM, conf=0.88)

The section ‘CCDC22 regulates the cellular localization of COMMD proteins’ reports that the CCDC22 T17A mutation impairs binding to COMMD1. That supports a mutation affecting a COMMD-associated protein, but our copy does not connect it to LDLR trafficking or hypercholesterolemia; searches for those terms found no such passage. (LLM, conf=0.82)

The Introduction links COMMD1 and other COMMD family members to Cullin-RING ligases, and describes a COMMD1-dependent ligase step in NF-κB regulation. The paper does not specifically link COMMD7 to NF-κB regulation through those ligases; a search for COMMD7 found only statements about the COMMD family as a whole. Page numbers are unavailable in our copy. (LLM, conf=0.85)

The section on CCDC22 and COMMD proteins (page unavailable) reports a CCDC22 mutation in a family with XLID and shows that the mutation impairs COMMD1 binding. Our copy does not identify these patients as having Ritscher-Schinzel syndrome or support the cited syndrome description, so it supports only the XLID part of the claim. (LLM, conf=0.87)

The section on CCDC22 and COMMD proteins (page unavailable) describes a CCDC22 mutation in a family with X-linked intellectual disability and other developmental abnormalities. It does not identify the condition as 3C/Ritscher-Schinzel syndrome. The searched passages also do not address VPS35L or WASHC5, so the source supports only the narrower point that CCDC22 mutations are associated with a developmental disorder. (LLM, conf=0.78)

The section on CCDC22 and COMMD localization reports that CCDC22 interacts with all 10 COMMD proteins and regulates their cellular distribution. Neither that passage nor the additional passages retrieved for retromer, retriever, and trafficking addresses whether the CCC complex is required for retromer- or retriever-dependent protein trafficking. (LLM, conf=0.75)

The section ‘COMMD proteins associate with CCDC22, a broadly expressed gene’ establishes that CCDC22 and COMMD proteins interact, and ‘CCDC22 regulates the cellular localization of COMMD proteins’ reports changes in their cellular distribution. Neither section addresses endosomal recycling of cargos; searches for ‘endosomal,’ ‘recycling,’ and cargo trafficking found no passage establishing the attributed role. Page numbers were not available in our copy. (LLM, conf=0.75)