Variant 4-1212335-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_001012614.2(CTBP1):c.1195G>A(p.Gly399Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000724 in 1,520,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000058 ( 0 hom. )

Consequence

CTBP1
NM_001012614.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.32

Variant links:

Genes affected

CTBP1 (HGNC:2494): (C-terminal binding protein 1) This gene encodes a protein that binds to the C-terminus of adenovirus E1A proteins. This phosphoprotein is a transcriptional repressor and may play a role during cellular proliferation. This protein and the product of a second closely related gene, CTBP2, can dimerize. Both proteins can also interact with a polycomb group protein complex which participates in regulation of gene expression during development. Alternative splicing of transcripts from this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

CTBP1 links:

CTBP1-AS (HGNC:):

CTBP1-AS links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.27667242).

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTBP1	NM_001012614.2 linkuse as main transcript	c.1195G>A	p.Gly399Ser	missense_variant	10/10	ENST00000382952.8	NP_001012632.1	Q13363-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTBP1	ENST00000382952.8 linkuse as main transcript	c.1195G>A	p.Gly399Ser	missense_variant	10/10	1	NM_001012614.2	ENSP00000372411.3		Q13363-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000585

AC:

AN:

1367972

Hom.:

Cov.:

AF XY:

0.00000592

AC XY:

AN XY:

675862

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000266

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000374

Gnomad4 OTH exome

AF:

0.0000355

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 14, 2023

The c.1228G>A (p.G410S) alteration is located in exon 9 (coding exon 9) of the CTBP1 gene. This alteration results from a G to A substitution at nucleotide position 1228, causing the glycine (G) at amino acid position 410 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Hypotonia, ataxia, developmental delay, and tooth enamel defect syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

research

Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center

Mar 25, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.042

BayesDel_noAF

Benign

-0.30

CADD

Uncertain

DANN

Benign

0.68

DEOGEN2

Benign

0.35

.;T

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.21

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.76

T;T

M_CAP

Pathogenic

0.53

MetaRNN

Benign

0.28

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.60

.;N

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-0.020

N;N

REVEL

Benign

0.24

Sift

Benign

0.48

T;T

Sift4G

Benign

0.79

T;T

Polyphen

0.0010

.;B

Vest4

0.19

MutPred

0.10

.;Gain of glycosylation at G410 (P = 0.0016);

MVP

0.66

MPC

0.46

ClinPred

0.11

GERP RS

3.4

Varity_R

0.043

gMVP

0.32

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.19

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over