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Intellectual disability - microarray and sequencing v4.120 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.120 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.119 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.120 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.119 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.119 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.119 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587; 36255738
Intellectual disability - microarray and sequencing v4.119 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.114 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.113 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.114 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.114 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.114 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.114 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.113 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697; 36226587
Intellectual disability - microarray and sequencing v4.112 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.113 SUPT16H Achchuthan Shanmugasundram Publications for gene: SUPT16H were set to 31924697
Intellectual disability - microarray and sequencing v4.112 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.112 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.111 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.111 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.111 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v4.111 SUPT16H Achchuthan Shanmugasundram Phenotypes for gene: SUPT16H were changed from Global developmental delay; Intellectual disability; Abnormality of the corpus callosum to Neurodevelopmental disorder with dysmorphic facies and thin corpus callosum, OMIM:619480; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Intellectual disability - microarray and sequencing v3.1511 SUPT16H Arina Puzriakova Tag for-review was removed from gene: SUPT16H.
Intellectual disability - microarray and sequencing v3.1510 SUPT16H Sarah Leigh commented on gene: SUPT16H
Intellectual disability - microarray and sequencing v3.1509 SUPT16H Arina Puzriakova Source Expert Review Green was added to SUPT16H.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Intellectual disability - microarray and sequencing v3.278 SUPT16H Arina Puzriakova Publications for gene: SUPT16H were set to http://dx.doi.org/10.1136/jmedgenet-2019-106193
Intellectual disability - microarray and sequencing v3.277 SUPT16H Arina Puzriakova Classified gene: SUPT16H as Amber List (moderate evidence)
Intellectual disability - microarray and sequencing v3.277 SUPT16H Arina Puzriakova Added comment: Comment on list classification: There is sufficient evidence for this gene to be rated GREEN at the next major review - at least four unrelated individuals with GDD/ID (plus another additional patient with a deletion, albeit encompassing other potentially clinically relevant genes).
Intellectual disability - microarray and sequencing v3.277 SUPT16H Arina Puzriakova Gene: supt16h has been classified as Amber List (Moderate Evidence).
Intellectual disability - microarray and sequencing v3.276 SUPT16H Arina Puzriakova Tag for-review tag was added to gene: SUPT16H.
Intellectual disability - microarray and sequencing v3.0 SUPT16H Konstantinos Varvagiannis gene: SUPT16H was added
gene: SUPT16H was added to Intellectual disability. Sources: Literature
Mode of inheritance for gene: SUPT16H was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SUPT16H were set to http://dx.doi.org/10.1136/jmedgenet-2019-106193
Phenotypes for gene: SUPT16H were set to Global developmental delay; Intellectual disability; Abnormality of the corpus callosum
Penetrance for gene: SUPT16H were set to Complete
Review for gene: SUPT16H was set to AMBER
Added comment: Bina et al (2020 - http://dx.doi.org/10.1136/jmedgenet-2019-106193) report on 4 unrelated individuals with heterozygous SNVs affecting SUPT16H as well as 1 further with microdeletion spanning this gene.

The phenotype consisted of DD with subsequent ID in a subset of them (ages of the cohort: 2y-14y), autistic features in few, abnormalities of the corpus callosum (for 3 with available MRI images), variable gastrointestinal problems in some, and possibly minor dysmorphic features.

SUPT16H encodes a subunit of the FACT (facilitates chromatin transcription) complex, a chromatin-specific factor required for transcription elongation as well as for DNA replication and repair (OMIM citing Belotserkovskaya et al. 2003 - PMID: 12934006). The 2 subunits of the complex [Spt16 (encoded by SUPT16H) and SSRP1] are essential for histone regulation. As the authors note, Spt16 interacts with the histone dimer H2A-H2B during transcription to allow RNA polymerase access to previously coiled DNA [cited PMIDs : 9489704, 10421373 / A recent study by Liu et al 2019 (PMID: 31775157) appears highly relevant].

SUPT16H has a Z-score of 5.1 in gnomAD and a pLI of 1 (%HI of 22.56 in Decipher).

SNVs :
4 de novo missense SNVs were identified following exome sequencing (NM_007192.3:c.484A>G or I162V / L432P / N571S / R734W), all absent from gnomAD and mostly predicted to be deleterious (I162V predicted benign, tolerated, disease-causing by PolyPhen2, SIFT, MutationTaster respectively and had a CADD score of 13.61). Prior work-up for these individuals (incl. CMA in some / MS-MLPA for Angelman s. in 1 / metabolic investigations) had (probably) not revealed an apparent cause, with small CNVs inherited from healthy parents (a 4q13.3 dup / 20q13.2 del - coordinates not provided).

There were no studies performed for the identified variants.

CNVs :
A 5th individual reported by Bina et al was found to harbor a 2.05 Mb 14q11.2 deletion spanning SUPT16H. The specific deletion also spanned CHD8 while the same individual harbored also a 30.17 Mb duplication of 18p11.32q12.1.

CNVs spanning SUPT16H reported to date, also span the (very) proximal CHD8. [Genomic coordinates (GRCh38) for SUPT16H and CHD8 as provided by OMIM : 14:21,351,471-21,384,018 / 14:21,385,198-21,456,122]. Haploinsufficiency of CHD8 is associated with a distinctive syndrome with overgrowth and ID (Douzgou et al 2019 - PMID: 31001818). The phenotype of SUPT16H-CHD8 duplications is discussed in other studies/reviews. [Smol et al 2020 - PMID: 31823155 / Smyk et al 2016 - PMID: 26834018].

Animal models were not commented on by Bina et al (possibly not available for mouse : http://www.informatics.jax.org/marker/MGI:1890948 / https://www.mousephenotype.org/data/genes/MGI:1890948 ).
Sources: Literature