16-67610962-C-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_006565.4(CTCF):c.130C>A(p.Gln44Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000251 in 1,592,416 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 1 hom. )

Consequence

CTCF
NM_006565.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.21

Variant links:

Genes affected

CTCF (HGNC:13723): (CCCTC-binding factor) This gene is a member of the BORIS + CTCF gene family and encodes a transcriptional regulator protein with 11 highly conserved zinc finger (ZF) domains. This nuclear protein is able to use different combinations of the ZF domains to bind different DNA target sequences and proteins. Depending upon the context of the site, the protein can bind a histone acetyltransferase (HAT)-containing complex and function as a transcriptional activator or bind a histone deacetylase (HDAC)-containing complex and function as a transcriptional repressor. If the protein is bound to a transcriptional insulator element, it can block communication between enhancers and upstream promoters, thereby regulating imprinted expression. Mutations in this gene have been associated with invasive breast cancers, prostate cancers, and Wilms' tumors. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

CTCF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in the CTCF gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 29 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. Gene score misZ: 4.4399 (above the threshold of 3.09). Trascript score misZ: 4.8366 (above the threshold of 3.09). GenCC associations: The gene is linked to intellectual disability, autosomal dominant 40, syndromic intellectual disability, intellectual disability-feeding difficulties-developmental delay-microcephaly syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.18615535).

BS2

High AC in GnomAdExome4 at 38 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTCF	NM_006565.4 link	c.130C>A	p.Gln44Lys	missense_variant	Exon 3 of 12	ENST00000264010.10	NP_006556.1	P49711-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CTCF	ENST00000264010.10 link	c.130C>A	p.Gln44Lys	missense_variant	Exon 3 of 12	1	NM_006565.4	ENSP00000264010.4		P49711-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

245900

Hom.:

AF XY:

0.0000226

AC XY:

AN XY:

132712

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000360

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000264

AC:

AN:

1440318

Hom.:

Cov.:

AF XY:

0.0000309

AC XY:

AN XY:

712032

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000338

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000776

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

May 04, 2018

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Q44K variant (also known as c.130C>A), located in coding exon 1 of the CTCF gene, results from a C to A substitution at nucleotide position 130. The glutamine at codon 44 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.36

T;T;.;.;.;T;T;.;T

Eigen

Benign

0.036

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

.;.;D;.;D;.;.;D;D

M_CAP

Benign

0.0066

MetaRNN

Benign

0.19

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

L;L;.;.;.;L;L;.;L

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.75

N;.;.;.;.;.;.;.;.

REVEL

Benign

0.13

Sift

Pathogenic

0.0

D;.;.;.;.;.;.;.;.

Sift4G

Benign

0.23

T;.;.;.;.;.;.;.;.

Polyphen

0.028

B;B;.;.;.;B;B;.;B

Vest4

0.40

MutPred

0.31

Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);Gain of ubiquitination at Q44 (P = 0.0031);

MVP

0.61

MPC

0.55

ClinPred

0.37

GERP RS

5.2

Varity_R

0.51

gMVP

0.29

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.

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