10-125005818-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001363508.2(CTBP2):​c.-10C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000923 in 1,608,456 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00050 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00097 ( 1 hom. )

Consequence

CTBP2
NM_001363508.2 5_prime_UTR_premature_start_codon_gain

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.646
Variant links:
Genes affected
CTBP2 (HGNC:2495): (C-terminal binding protein 2) This gene produces alternative transcripts encoding two distinct proteins. One protein is a transcriptional repressor, while the other isoform is a major component of specialized synapses known as synaptic ribbons. Both proteins contain a NAD+ binding domain similar to NAD+-dependent 2-hydroxyacid dehydrogenases. A portion of the 3' untranslated region was used to map this gene to chromosome 21q21.3; however, it was noted that similar loci elsewhere in the genome are likely. Blast analysis shows that this gene is present on chromosome 10. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Feb 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 10-125005818-G-A is Benign according to our data. Variant chr10-125005818-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3051217.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAd4 at 76 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CTBP2NM_022802.3 linkuse as main transcriptc.1679-2326C>T intron_variant ENST00000309035.11 NP_073713.2 P56545-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CTBP2ENST00000309035.11 linkuse as main transcriptc.1679-2326C>T intron_variant 1 NM_022802.3 ENSP00000311825.6 P56545-2
CTBP2ENST00000337195.10 linkuse as main transcriptc.59-2326C>T intron_variant 1 ENSP00000338615.5 P56545-1

Frequencies

GnomAD3 genomes
AF:
0.000499
AC:
76
AN:
152212
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00103
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000911
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000540
AC:
129
AN:
239034
Hom.:
0
AF XY:
0.000564
AC XY:
74
AN XY:
131242
show subpopulations
Gnomad AFR exome
AF:
0.000211
Gnomad AMR exome
AF:
0.0000587
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00107
Gnomad FIN exome
AF:
0.000141
Gnomad NFE exome
AF:
0.000830
Gnomad OTH exome
AF:
0.000169
GnomAD4 exome
AF:
0.000968
AC:
1409
AN:
1456126
Hom.:
1
Cov.:
31
AF XY:
0.000946
AC XY:
685
AN XY:
723774
show subpopulations
Gnomad4 AFR exome
AF:
0.000150
Gnomad4 AMR exome
AF:
0.0000900
Gnomad4 ASJ exome
AF:
0.0000771
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00151
Gnomad4 FIN exome
AF:
0.0000192
Gnomad4 NFE exome
AF:
0.00109
Gnomad4 OTH exome
AF:
0.000881
GnomAD4 genome
AF:
0.000499
AC:
76
AN:
152330
Hom.:
0
Cov.:
32
AF XY:
0.000456
AC XY:
34
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000911
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000553
Hom.:
0
Bravo
AF:
0.000529
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CTBP2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 31, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.44
DANN
Benign
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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.

Other links and lift over

dbSNP: rs377616232; hg19: chr10-126694387; API