Fibrillar Collagens Analysis
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Análise molecular e funcional dos genes formadores e reguladores do colágeno tipo I em pacientes com osteogênese imperfeita = : Molecular and functional analysis of regulatory and structure-related genes of type I collagen in patients with osteogenesis imperfecta / Molecular and functional analysis of regulatory and structure-related genes of type I collagen in patients with osteogenesis imperfecta
A Osteogênese Imperfeita (OI) é um distúrbio genético caracterizado por baixa massa e fragilidade óssea, e outras manifestações do tecido conjuntivo, decorrente de defeitos qualitativos ou quantitativos do colágeno tipo I. Está associada a mutações nos genes COL1A1 e COL1A2 que codificam respectivamente as cadeias pro alfa 1-(I) e pro alfa -2(I) f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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2. Morphological and biochemical analysis of the synovia of rabbits immunized with type V collagen / "Análise morfológica e bioquímica da sinóvia de coelhos imunizados com colágeno do tipo V"
We described an original model of experimental synovitis in rabbits immunized with collagen V with scant cellular infiltration, intense matrix remodeling and vasculitis. Morphological and biochemical analysis were realized in New Zealand female rabbits (N=20) immunization with type V collagen, compared with control rabbits. It was observed increase of collag
Publicado em: 2005
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3. Genetic segregation analysis of familial mitral valve prolapse shows no linkage to fibrillar collagen genes.
Three pedigrees were identified in which mitral valve prolapse seemed to be inherited as a mendelian autosomal dominant trait. The segregation of the genes encoding the major fibrillar collagens present in valve tissue, collagens I and III, was analysed by use of restriction enzyme site variants as genetic markers. In one pedigree there was discordance betwe
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4. The pro alpha 2(V) collagen gene is evolutionarily related to the major fibrillar-forming collagens.
A number of overlapping cDNA clones, covering 5.2 kb of sequences which code for the human pro alpha 2(V) collagen chain, have been isolated. Analysis of the structural data have indicated a close evolutionary kinship between the pro alpha 2(V) chain and the major fibrillar collagen types. Isolation and analysis of an 8 kb genomic fragment has further suppor
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5. Linkage studies of four fibrillar collagen genes in three pedigrees with Larsen-like syndrome.
We report seven children from three families who had a set of common clinical features suggestive of Larsen-like syndrome, including unusual facies, bilateral dislocations of the knees and elbows, club foot, and short stature. All of the patients originated from the island of La Réunion in the Indian Ocean. The occurrence of several affected sibs in these f
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6. A distinct class of vertebrate collagen genes encodes chicken type IX collagen polypeptides.
Type IX collagen is a disulfide-bonded protein first isolated from hyaline cartilage. The structure of this collagen is unusual in that the molecules contain three triple-helical domains interspersed with noncollagenous regions. The molecules are heterotrimers composed of three genetically distinct polypeptide chains. In our laboratory, cDNAs specific for tw
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7. The human platelet alloantigens Br(a) and Brb are associated with a single amino acid polymorphism on glycoprotein Ia (integrin subunit alpha 2).
The human GPIa/IIa complex, also known as integrin alpha 2 beta 1, serves as a major receptor for collagen in platelets and other cell types. In addition to its role in platelet adhesion to extracellular matrix, GPIa/IIa is also known to bear the clinically important Br(a) and Brb alloantigenic determinants, which can result in antibody-mediated platelet des
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8. Type XII collagen: distinct extracellular matrix component discovered by cDNA cloning.
We have screened a cDNA library constructed from tendon fibroblast mRNA for the presence of collagenous coding sequences. Nucleotide sequence analysis of one isolated clone, pMG377, reveals that the clone encodes a polypeptide that is homologous to, yet distinctly different from, type IX short-chain collagen polypeptides. The structure of the conceptual tran
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9. Large introns in the 3' end of the gene for the pro alpha 1 (IV) chain of human basement membrane collagen.
Using a recently characterized cDNA clone (HT-21) coding for the pro alpha 1 (IV) chain of human type IV procollagen, we have isolated three clones from a bacterio-phage lambda Charon 4A library of human genomic DNA. The intron/exon structure of the pro alpha 1 (IV) genomic clones was analyzed by heteroduplex electron microscopy and nucleotide sequencing. Th
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10. Immunohistochemical detection and immunochemical analysis of type II collagen degradation in human normal, rheumatoid, and osteoarthritic articular cartilages and in explants of bovine articular cartilage cultured with interleukin 1.
Articular cartilage destruction and loss of function in arthritic diseases involves proteolytic degradation of the connective tissue matrix. We have investigated the degradation of cartilage collagen by developing immunochemical methods that permit the identification and analysis of type II collagen degradation in situ. Previously, a technique to specificall
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11. An exon skipping mutation of a type V collagen gene (COL5A1) in Ehlers-Danlos syndrome.
The Ehlers-Danlos syndrome (EDS) is a heterogeneous group of inherited connective tissue disorders characterised by skin hyperextensibility, joint hypermobility, easy bruising, and cutaneous fragility. Nine discrete clinical subtypes have been classified. We have investigated the molecular defect in a patient with clinical features of Ehlers-Danlos syndromes
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12. Gene structure for the alpha 1 chain of a human short-chain collagen (type XIII) with alternatively spliced transcripts and translation termination codon at the 5' end of the last exon.
Two overlapping human genomic clones that encode a short-chain collagen, designated alpha 1(XIII), were isolated by using recently described cDNA clones. Characterization of the cosmid clones that span approximately equal to 65,000 base pairs (bp) of the 3' end of the gene established several unusual features of this collagen gene. The last exon encodes sole