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Skeletal dysplasia v1.221 COG1 Eleanor Williams Classified gene: COG1 as Green List (high evidence)
Skeletal dysplasia v1.221 COG1 Eleanor Williams Added comment: Comment on list classification: 3 unrelated cases with plausible disease causing variants in the gene reported and a relevant phenotype.
Skeletal dysplasia v1.221 COG1 Eleanor Williams Gene: cog1 has been classified as Green List (High Evidence).
Skeletal dysplasia v1.220 COG1 Eleanor Williams changed review comment from: Associated with Congenital disorder of glycosylation, type IIg #611209 (AR) in OMIM.; to: Associated with Congenital disorder of glycosylation, type IIg #611209 (AR) in OMIM. Clinical features include short stature, several skeletal features such as scoliosis and vertebral abnormalities.

PMID: 16537452 - Foulquier et al 2006 - describe a patient with a mild form of congenital disorder of glycosylation type II with a homozygous insertion of a single nucleotide (2659-2660insC), which is predicted to lead to a premature translation stop and truncation of the C terminus of the Cog1 protein by 80 amino acids. Both parents were shown to be heterozygous for this mutation. Her skeletal features included small hands and feet, rhizomelic short stature.

PMID: 19008299 - Zeevaert et al 2009 - two patients (one with consanguineous Greek-Turkish parents, the other with unrelated Bulgarian parents) with a cerebrocostomandibular-like syndrome and an intronic mutation, c.1070+5G>A, that disrupts a splice donor site and leads to skipping of exon 6, a frameshift and a premature stopcodon in exon 7. Patient 1's characteristics included multiple congenital abnormalities including Pierre-Robin sequence (cleft palate, micrognathia and glossoptosis), costovertebral anomalies including osteopenia, ribfusions and posterior rib gaps, butterfly vertebrae, misalignment of the vertebrae and a clubfoot on the right. Patient 2 presented with rhizomelic shortening of upper limbs, ulnar deviation of fingers, thoracic scoliosis, hypospadias-I and left-side cryptorchidism among other features.

3 unrelated cases.
Skeletal dysplasia v1.220 COG1 Eleanor Williams commented on gene: COG1: Associated with Congenital disorder of glycosylation, type IIg #611209 (AR) in OMIM.
Skeletal dysplasia v1.153 COG1 Eleanor Williams Added phenotypes Congenital disorder of glycosylation, type IIg 611209 for gene: COG1
Publications for gene COG1 were changed from to 16537452; 19008299
Skeletal dysplasia v1.147 COG1 Tracy Lester reviewed gene: COG1: Rating: GREEN; Mode of pathogenicity: ; Publications: 16537452, 19008299; Phenotypes: Congenital disorder of glycosylation, type IIg 611209; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Skeletal dysplasia v1.146 COG1 Eleanor Williams reviewed gene: COG1: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Skeletal dysplasia v1.145 COG1 Eleanor Williams Source NHS GMS was added to COG1.