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C1qA globular domain (C1qAgD) was expressed, purified and crystallized.
This study reveled that C1QA having a central role in the bipolar disease and schizophrenia manifestation.
no significant association found to either rs15940 (C1QA) or rs172378 (C1QC (show C1QC Proteins)) when analysed in just Parkinson disease cases , just controls or combined
Our findings showed that Brugia malayi Calreticulin (show CALR Proteins) (BmCRT) is responsible for the prevention of classical complement pathway activation via its interaction with the first component C1q of the human host
interaction with calreticulin (show CALR Proteins) controls the phagocyte inflammatory status
A newly characterized leech calreticulin (show CALR Proteins) (HmCalR) has been shown to interact with C1q and participate to the HmC1q-dependent microglia accumulation.
Both CERT (show COL4A3BP Proteins) isoforms, when immobilized, were found to bind the globular head region of C1q and to initiate the classical complement pathway. C1q binds endogenous CERTL (show COL4A3BP Proteins) on the surface of apoptotic cells.
Most likely, C1q bridges calreticulin (show CALR Proteins) on the parasite surface with its receptor orthologue on human placental cells, thus facilitating the first encounter between the parasite and the fetal derived placental tissue.
Data indicate that Cna binds to C1q.
Analysis of its interaction properties by surface plasmon resonance shows that rC1q retains the ability of serum C1q to associate with the C1s (show C1S Proteins)-C1r-C1r (show C1R Proteins)-C1s (show C1S Proteins) tetramer, to recognize physiological C1q ligands such as IgG and pentraxin 3 (show PTX3 Proteins)
Single nucleotide polymorphisms in and around the C1q genes, C1qA, C1qB (show C1QB Proteins) and C1qC (show C1QC Proteins), correlated with C1q serum levels and may be a risk for the development of rheumatoid arthritis.
Deleting C1qa gene significantly reduces synaptic pruning by Grn (show GRN Proteins)(-/-) microglia and mitigates neurodegeneration, behavioral phenotypes, and premature mortality in Grn (show GRN Proteins)(-/-) mice; results uncover a previously unrecognized role of progranulin (show GRN Proteins) in suppressing aberrant microglia activation during aging.
developmental mechanisms of C1qa may be re-engaged during injury response
C1q is involved in the pristane-mediated enhanced inflammatory response to TLR7 (show TLR7 Proteins) stimulation.
Data (including data from studies in mutant mice) suggest exercise prevents age-related neurovascular decline, up-regulation of C1qa, and down-regulation of astrocytic Apoe (show APOE Proteins); this preventive effect of exercise does not occur in Apoe (show APOE Proteins)-deficient mice.
critical role in activation of beta-catenin (show CTNNB1 Proteins) signalling in hypertensive arterial remodelling
Data (including data on knockout mice) suggest, in absence of Trem2 (triggering receptor expressed on myeloid cells 2 (show TREM2 Proteins)), pulmonary macrophages selectively produce elevated levels of C1q resulting in enhanced phagocytosis during pneumococcal pneumonia.
C1q induction and global complement pathway activation do not contribute to ALS toxicity in mutant SOD1 (show SOD1 Proteins) mice.
C1q-induced LRP1B and GPR6 proteins expressed early in Alzheimer disease mouse models, are essential for the C1q-mediated protection against amyloid-beta neurotoxicity
Findings suggest the unexpected role of complement C1q in Wnt (show WNT2 Proteins) signal transduction and modulation of mammalian aging.
This gene encodes a major constituent of the human complement subcomponent C1q. C1q associates with C1r and C1s in order to yield the first component of the serum complement system. Deficiency of C1q has been associated with lupus erythematosus and glomerulonephritis. C1q is composed of 18 polypeptide chains: six A-chains, six B-chains, and six C-chains. Each chain contains a collagen-like region located near the N terminus and a C-terminal globular region. The A-, B-, and C-chains are arranged in the order A-C-B on chromosome 1. This gene encodes the A-chain polypeptide of human complement subcomponent C1q.
complement component 1, q subcomponent, alpha polypeptide
, complement C1q subcomponent subunit A
, complement component 1, q subcomponent, A chain
, complement component C1q, A chain
, complement C1qA