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Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Classified gene: TRAPPC10 as Amber List (moderate evidence)
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are only two unrelated cases with intellectual disability and global developmental delay. Although there are functional studies available, no cognitive defects were reported in the mouse model.

The 'watchlist' tag has been added to review this gene rating regularly in light of any new evidence.
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Gene: trappc10 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.30 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Tag watchlist tag was added to gene: TRAPPC10.
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.29 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.28 TRAPPC10 Achchuthan Shanmugasundram Phenotypes for gene: TRAPPC10 were changed from Intellectual disability, MONDO:0001071 to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.26 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.26 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.27 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.26 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.26 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849; 35298461
Intellectual disability v5.26 TRAPPC10 Achchuthan Shanmugasundram Publications for gene: TRAPPC10 were set to 30167849
Intellectual disability v5.25 TRAPPC10 Achchuthan Shanmugasundram reviewed gene: TRAPPC10: Rating: AMBER; Mode of pathogenicity: None; Publications: 30167849, 35298461; Phenotypes: Neurodevelopmental disorder with microcephaly, short stature, and speech delay, OMIM:620027; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Intellectual disability v3.1523 TRAPPC10 Konstantinos Varvagiannis reviewed gene: TRAPPC10: Rating: AMBER; Mode of pathogenicity: None; Publications: 35298461, 30167849; Phenotypes: Abnormal muscle tone, Global developmental delay, Intellectual disability, Microcephaly, Short stature, Gait disturbance; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Intellectual disability v3.1266 TRAPPC10 Ivone Leong Phenotypes for gene: TRAPPC10 were changed from microcephaly (disease), MONDO:0001149 to Intellectual disability, MONDO:0001071
Intellectual disability v3.1265 TRAPPC10 Ivone Leong Entity copied from Severe microcephaly v2.223
Intellectual disability v3.1265 TRAPPC10 Ivone Leong gene: TRAPPC10 was added
gene: TRAPPC10 was added to Intellectual disability. Sources: Expert Review Red,Other
Mode of inheritance for gene: TRAPPC10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC10 were set to 30167849
Phenotypes for gene: TRAPPC10 were set to microcephaly (disease), MONDO:0001149
Penetrance for gene: TRAPPC10 were set to Complete
Intellectual disability v3.280 TRAPPC2L Arina Puzriakova gene: TRAPPC2L was added
gene: TRAPPC2L was added to Intellectual disability. Sources: Literature
Mode of inheritance for gene: TRAPPC2L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC2L were set to 30120216; 32843486
Phenotypes for gene: TRAPPC2L were set to Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis, 618331
Review for gene: TRAPPC2L was set to AMBER
Added comment: Gene is associated with Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis in OMIM, but not in G2P.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.
Sources: Literature