Schmid metaphyseal chondrodysplasia | |
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Other names | MCDS [1] |
This condition is inherited in an autosomal dominant manner. | |
Specialty | Orthopedic |
Metaphyseal chondrodysplasia Schmid type is a type of chondrodysplasia associated with a deficiency of collagen, type X, alpha 1. [2] [3] [4]
Unlike other "rickets syndromes", affected individuals have normal serum calcium, phosphorus, and urinary amino acid levels. Long bones are short and curved, with widened growth plates and metaphyses. [5]
It is named for the German researcher F. Schmid, who characterized it in 1949. [6]
A disintegrin and metalloproteinase with thrombospondin motifs 2 (ADAM-TS2) also known as procollagen I N-proteinase is an enzyme that in humans is encoded by the ADAMTS2 gene.
Tyrosine-protein kinase transmembrane receptor ROR2, also known as neurotrophic tyrosine kinase, receptor-related 2, is a protein that in humans is encoded by the ROR2 gene located on position 9 of the long arm of chromosome 9. This protein is responsible for aspects of bone and cartilage growth. It is involved in Robinow syndrome and autosomal dominant brachydactyly type B. ROR2 is a member of the receptor tyrosine kinase-like orphan receptor (ROR) family.
Multiple epiphyseal dysplasia (MED), also known as Fairbank's disease, is a rare genetic disorder that affects the growing ends of bones. Long bones normally elongate by expansion of cartilage in the growth plate near their ends. As it expands outward from the growth plate, the cartilage mineralizes and hardens to become bone (ossification). In MED, this process is defective.
Jansen's metaphyseal chondrodysplasia (JMC) is a disease that results from ligand-independent activation of the type 1 (PTH1R) of the parathyroid hormone receptor, due to one of three reported mutations.
Growth/differentiation factor 5 is a protein that in humans is encoded by the GDF5 gene.
Collagen alpha-2(V) chain is a protein that in humans is encoded by the COL5A2 gene.
The CLCN family of voltage-dependent chloride channel genes comprises nine members which demonstrate quite diverse functional characteristics while sharing significant sequence homology. The protein encoded by this gene regulates the electric excitability of the skeletal muscle membrane. Mutations in this gene cause two forms of inherited human muscle disorders: recessive generalized myotonia congenita (Becker) and dominant myotonia (Thomsen).
Collagen alpha-5(IV) chain is a protein that in humans is encoded by the COL4A5 gene.
Transforming growth factor, beta-induced, 68kDa, also known as TGFBI, is a protein which in humans is encoded by the TGFBI gene, locus 5q31.
Laminin subunit gamma-2 is a protein that in humans is encoded by the LAMC2 gene.
Collagen alpha-1(VI) chain is a protein that in humans is encoded by the COL6A1 gene.
Laminin subunit beta-3 is a protein that in humans is encoded by the LAMB3 gene.
Collagen alpha-1(X) chain is a protein that in humans is a member of the collagen family encoded by the COL10A1 gene.
Collagen alpha-1(XI) chain is a protein that in humans is encoded by the COL11A1 gene.
Collagen alpha-2(IX) chain is a protein that in humans is encoded by the COL9A2 gene.
Collagen alpha-3(IX) chain is a protein that in humans is encoded by the COL9A3 gene.
Matrilin-3 is a protein that in humans is encoded by the MATN3 gene. It is linked to the development of many types of cartilage, and part of the Matrilin family, which includes Matrilin-1, Matrilin-2, Matrilin-3, and Matrilin-4, a family of filamentous-forming adapter oligomeric extracellular proteins that are linked to the formation of cartilage and bone, as well as maintaining homeostasis after development. It is considered an extracellular matrix protein that functions as an adapter protein where the Matrilin-3 subunit can form both homo-tetramers and hetero-oligomers with subunits from Matrilin-1 which is the cartilage matrix protein. This restricted tissue has been strongly expressed in growing skeletal tissue as well as cartilage and bone.
Acetylcholinesterase collagenic tail peptide also known as AChE Q subunit, acetylcholinesterase-associated collagen, or ColQ is the collagen-tail subunit of acetylcholinesterase found in the neuromuscular junction. In humans it is encoded by the COLQ gene.
Gerodermia osteodysplastica (GO) is a rare autosomal recessive connective tissue disorder included in the spectrum of cutis laxa syndromes.
Arylsulfatase L is an enzyme that, in humans, is encoded by the ARSL gene.