Metachondromatosis

Metachondromatosis
Classification and external resources
OMIM	156250
DiseasesDB	32116

Metachondromatosis is an autosomal dominant^[1]incompletely penetrant^[2] skeletal disorder affecting the growth of bones, leading to multiple enchondromas and osteochondromas.^[2] This tumor syndrome affects mainly tubular bones, though it can also involve the vertebrae, small joints, and flat bones.^[3]

Genetics

Metachondromatosis has an autosomal dominant pattern of inheritance.

Metachondromatosis is inherited in an autosomal dominant manner.^[2] This means that the defective gene responsible for a disorder is located on an autosome, and only one copy of the gene is sufficient to cause the disorder, when inherited from a parent who has the disorder.

It has been associated with PTPN11.^[2]

References

↑ Kennedy LA (1983). "metachondromatosis". Radiology 148 (1): 117–8. doi:10.1148/radiology.148.1.6602353. PMID 6602353.
1 2 3 4 Sobreira NL, Cirulli ET, Avramopoulos D, et al. (2010). "Whole-genome sequencing of a single proband together with linkage analysis identifies a Mendelian disease gene". PLoS Genet. 6 (6): e1000991. doi:10.1371/journal.pgen.1000991. PMC 2887469. PMID 20577567.
↑ Hunter AG, Kozlowski K, Hochberger O (1995). "Metachondromatosis.". Can Assoc Radiol J. 46 (3): 202–8. PMID 7538882.

Deficiencies of intracellular signaling peptides and proteins

GTP-binding protein regulators

GTPase-activating protein	Neurofibromatosis type I Watson syndrome Tuberous sclerosis

Guanine nucleotide exchange factor	Marinesco–Sjögren syndrome Aarskog–Scott syndrome Juvenile primary lateral sclerosis X-Linked mental retardation 1

G protein

Heterotrimeic	cAMP/GNAS1: Pseudopseudohypoparathyroidism Progressive osseous heteroplasia Pseudohypoparathyroidism Albright's hereditary osteodystrophy McCune–Albright syndrome CGL 2

Monomeric	RAS: HRAS Costello syndrome KRAS Noonan syndrome 3 KRAS Cardiofaciocutaneous syndrome RAB: RAB7 Charcot–Marie–Tooth disease RAB23 Carpenter syndrome RAB27 Griscelli syndrome type 2 RHO: RAC2 Neutrophil immunodeficiency syndrome ARF: SAR1B Chylomicron retention disease ARL13B Joubert syndrome 8 ARL6 Bardet–Biedl syndrome 3

MAP kinase

Cardiofaciocutaneous syndrome

Other kinase/phosphatase

Tyrosine kinase	BTK X-linked agammaglobulinemia ZAP70 ZAP70 deficiency

Serine/threonine kinase	RPS6KA3 Coffin-Lowry syndrome CHEK2 Li-Fraumeni syndrome 2 IKBKG Incontinentia pigmenti STK11 Peutz–Jeghers syndrome DMPK Myotonic dystrophy 1 ATR Seckel syndrome 1 GRK1 Oguchi disease 2 WNK4/WNK1 Pseudohypoaldosteronism 2

Tyrosine phosphatase	PTEN Bannayan–Riley–Ruvalcaba syndrome Lhermitte–Duclos disease Cowden syndrome Proteus-like syndrome MTM1 X-linked myotubular myopathy PTPN11 Noonan syndrome 1 LEOPARD syndrome Metachondromatosis

Signal transducing adaptor proteins

Other

NF2
- Neurofibromatosis type II
NOTCH3
- CADASIL
PRKAR1A
- Carney complex
PRKAG2
- Wolff–Parkinson–White syndrome
PRKCSH
- PRKCSH Polycystic liver disease
XIAP
- XIAP2

See also intracellular signaling peptides and proteins

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