A novel mutation substituting tryptophan with arginine in the carboxyl-terminal, non-collagenous domain of collagen X in a case of Schmid metaphyseal chondrodysplasia. 1995

R K Pokharel, and H Alimsardjono, and K Uno, and S Fujii, and R Shiba, and M Matsuo
Division of Genetics, International Center for Medical Research, Kobe, Japan.

A novel nucleotide change in the collagen X gene was identified in a Japanese family with Schmid metaphyseal chondrodysplasia (SMCD). The T to C change at nucleotide 1951 resulted in replacement of tryptophan by arginine at residue 651 (W651R). This missense mutation is considered to be responsible for SMCD because 1, the same mutation was not be identified in the collagen X gene from normal individuals; 2, the mutation segregated with the SMCD phenotype in the index family; 3, the substituted amino acid is highly conserved in type X collagens, and 4, the mutation causes a marked change in the hydrophobicity profile of the surrounding region in the NC1 domain. This novel mutation (W651) seems to have the same impact on bone development as W651X mutation.

UI MeSH Term Description Entries
D008297 Male Males
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D005097 Exostoses, Multiple Hereditary Hereditary disorder transmitted by an autosomal dominant gene and characterized by multiple exostoses (multiple osteochondromas) near the ends of long bones. The genetic abnormality results in a defect in the osteoclastic activity at the metaphyseal ends of the bone during the remodeling process in childhood or early adolescence. The metaphyses develop benign, bony outgrowths often capped by cartilage. A small number undergo neoplastic transformation. Chondrodysplasia, Hereditary Deforming,Diaphyseal Aclasis,Exostoses, Familial,Exostoses, Hereditary Multiple,Exostoses, Multiple,Exostoses, Multiple Cartilaginous,Hereditary Multiple Exostoses,Osteochondromas, Multiple,Bessel-Hagen Disease,Exostoses, Multiple, Type I,Exostosis, Familial,Exostosis, Hereditary Multiple,Exostosis, Multiple,Exostosis, Multiple Cartilaginous,Familial Exostoses,Hereditary Multiple Exostosis,Multiple Cartilaginous Exostoses,Multiple Hereditary Exostoses,Multiple Osteochondromas,Multiple Osteochondromatosis,Aclases, Diaphyseal,Aclasis, Diaphyseal,Cartilaginous Exostoses, Multiple,Cartilaginous Exostosis, Multiple,Chondrodysplasias, Hereditary Deforming,Deforming Chondrodysplasia, Hereditary,Deforming Chondrodysplasias, Hereditary,Diaphyseal Aclases,Familial Exostosis,Hereditary Deforming Chondrodysplasia,Hereditary Deforming Chondrodysplasias,Hereditary Exostoses, Multiple,Multiple Cartilaginous Exostosis,Multiple Exostoses,Multiple Exostoses, Hereditary,Multiple Exostosis,Multiple Exostosis, Hereditary,Multiple Osteochondroma,Osteochondroma, Multiple
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001120 Arginine An essential amino acid that is physiologically active in the L-form. Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate

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