Gene Role Disease OMIM Descriptions Sources
ORC4 causing MGORS2 613800 The disease is caused by mutations affecting the gene represented in this entry. A syndrome characterized by bilateral microtia, aplasia/hypoplasia of the patellae, and severe intrauterine and postnatal growth retardation with short stature and poor weight gain. Additional clinical findings include anomalies of cranial sutures, microcephaly, apparently low-set and simple ears, microstomia, full lips, highly arched or cleft palate, micrognathia, genitourinary tract anomalies, and various skeletal anomalies. While almost all cases have primordial dwarfism with substantial prenatal and postnatal growth retardation, not all cases have microcephaly, and microtia and absent/hypoplastic patella are absent in some. Despite the presence of microcephaly, intellect is usually normal. [read more] 21358632
21358631
ORC6 causing MGORS3 613803 The disease is caused by mutations affecting the gene represented in this entry. A syndrome characterized by bilateral microtia, aplasia/hypoplasia of the patellae, and severe intrauterine and postnatal growth retardation with short stature and poor weight gain. Additional clinical findings include anomalies of cranial sutures, microcephaly, apparently low-set and simple ears, microstomia, full lips, highly arched or cleft palate, micrognathia, genitourinary tract anomalies, and various skeletal anomalies. While almost all cases have primordial dwarfism with substantial prenatal and postnatal growth retardation, not all cases have microcephaly, and microtia and absent/hypoplastic patella are absent in some. Despite the presence of microcephaly, intellect is usually normal. [read more] 21358632
RBPJ causing AOS3 614814 The disease is caused by mutations affecting the gene represented in this entry. An autosomal dominant form of Adams-Oliver syndrome, a disorder characterized by the congenital absence of skin (aplasia cutis congenita) in combination with transverse limb defects. Aplasia cutis congenita can be located anywhere on the body, but in the vast majority of the cases, it is present on the posterior parietal region where it is often associated with an underlying defect of the parietal bones. Limb abnormalities are typically limb truncation defects affecting the distal phalanges or entire digits (true ectrodactyly). Only rarely, metatarsals/metacarpals or more proximal limb structures are also affected. Apart from transverse limb defects, syndactyly, most commonly of second and third toes, can also be observed. The clinical features are highly variable and can also include cardiovascular malformations, brain abnormalities and vascular defects such as cutis marmorata and dilated scalp veins. AOS3 patients manifest characteristic vertex scalp defects and terminal limb defects, but without congenital heart defects, other associated defects, or immune defects. [read more] 22883147
RECQL4 causing RAPADILINOS 266280 The disease is caused by mutations affecting the gene represented in this entry. Disease characterized by radial and patellar aplasia or hypoplasia. [read more] 12952869
RIPK4 causing PPS-L 263650 The disease is caused by mutations affecting the gene represented in this entry. An autosomal recessive disorder characterized by multiple popliteal pterygia leading to severe arthrogryposis, ankyloblepharon filiforme adnatum, filiform bands between the jaws, synostosis of the carpal/tarsal and phalangeal bones in the hands and feet, digital hypoplasia/aplasia, complete soft-tissue syndactyly, lack of nails, lack of scalp hair, eyebrows and eyelashes, blepharophimosis, cleft lip and/or palate, and hypoplastic external genitalia. Early lethality is common, although survival into childhood and beyond has been reported. [read more] 22197488
22197489
ROR2 causing RRS 268310 The disease is caused by mutations affecting the gene represented in this entry. A recessive form of Robinow syndrome, a disease characterized by short-limb dwarfism, costovertebral segmentation defects and abnormalities of the head, face and external genitalia. The clinical signs are generally far more severe in recessive cases, particularly skeletal abnormalities. All patients with the recessive form suffer from vertebral segmentation abnormalities, resulting in scoliosis and chest deformities. Rib fusions are considered to be characteristic of the autosomal recessive form. Patients can also present brachydactyly, with extensive aplasia/hypoplasia of the phalanges and metacarpals/metatarsals, and brachy-syn-polydactyly of the hands and oligodactyly of the feet. [read more] 10932186
10932187
RPGRIP1L causing JBTS7 611560 The disease is caused by mutations affecting the gene represented in this entry. A disorder presenting with cerebellar ataxia, oculomotor apraxia, hypotonia, neonatal breathing abnormalities and psychomotor delay. Neuroradiologically, it is characterized by cerebellar vermian hypoplasia/aplasia, thickened and reoriented superior cerebellar peduncles, and an abnormally large interpeduncular fossa, giving the appearance of a molar tooth on transaxial slices (molar tooth sign). Additional variable features include retinal dystrophy and renal disease. [read more] 17558407
17558409
22693042
RUNX2 causing CLCD 119600 The disease is caused by mutations affecting the gene represented in this entry. Autosomal dominant skeletal disorder with high penetrance and variable expressivity. It is due to defective endochondral and intramembranous bone formation. Typical features include hypoplasia/aplasia of clavicles, patent fontanelles, wormian bones (additional cranial plates caused by abnormal ossification of the calvaria), supernumerary teeth, short stature, and other skeletal changes. In some cases defects in RUNX2 are exclusively associated with dental anomalies. [read more] 9182765
9207800
10521292
10545612
10689183
10980549
12196916
12081718
12424590
11857736
16270353
20082269
20648631
19744171
SF3B4 causing AFD1 154400 The disease is caused by mutations affecting the gene represented in this entry. A form of acrofacial dysostosis, a group of disorders which are characterized by malformation of the craniofacial skeleton and the limbs. The major facial features of AFD1 include downslanted palpebral fissures, midface retrusion, and micrognathia, the latter of which often requires the placement of a tracheostomy in early childhood. Limb defects typically involve the anterior (radial) elements of the upper limbs and manifest as small or absent thumbs, triphalangeal thumbs, radial hyoplasia or aplasia, and radioulnar synostosis. Phocomelia of the upper limbs and, occasionally, lower-limb defects have also been reported. [read more] 22541558
STRA6 causing MCOPS9 601186 The disease is caused by mutations affecting the gene represented in this entry. A rare clinical entity including as main characteristics anophthalmia or severe microphthalmia, and pulmonary hypoplasia or aplasia. Microphthalmia is a disorder of eye formation, ranging from small size of a single eye to complete bilateral absence of ocular tissues (anophthalmia). In many cases, microphthalmia/anophthalmia occurs in association with syndromes that include non-ocular abnormalities. [read more] 17273977
17503335
21901792