chr16-67636779-C-A

Position:

• chr16-67636779-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_006565.4(CTCF):​c.1927C>A​(p.Pro643Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P643S) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CTCF NM_006565.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.11

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CTCF. . Gene score misZ 4.4399 (greater than the threshold 3.09). Trascript score misZ 4.8366 (greater than threshold 3.09). GenCC has associacion of gene with intellectual disability, autosomal dominant 40, syndromic intellectual disability, intellectual disability-feeding difficulties-developmental delay-microcephaly syndrome.
• BP4: Computational evidence support a benign effect (MetaRNN=0.3277741).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTCF	NM_006565.4	c.1927C>A	p.Pro643Thr	missense_variant	11/12	ENST00000264010.10	NP_006556.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTCF	ENST00000264010.10	c.1927C>A	p.Pro643Thr	missense_variant	11/12	1	NM_006565.4	ENSP00000264010	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1453652 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 722824

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.069
BayesDel_addAF	Benign	-0.084	T
BayesDel_noAF	Benign	-0.36
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.30	T;T;.;.;T;T;.;T
Eigen	Uncertain	0.67
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.86	.;.;D;.;.;.;D;D
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.33	T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.8	L;L;.;.;L;L;.;L
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.18	N;.;N;.;.;.;.;.
REVEL	Benign	0.23
Sift	Benign	0.052	T;.;T;.;.;.;.;.
Sift4G	Benign	0.20	T;.;T;.;.;.;.;.
Polyphen		1.0	D;D;.;.;D;D;.;D
Vest4		0.48
MutPred		0.33		Gain of phosphorylation at P643 (P = 0.0015);Gain of phosphorylation at P643 (P = 0.0015);.;Gain of phosphorylation at P643 (P = 0.0015);Gain of phosphorylation at P643 (P = 0.0015);Gain of phosphorylation at P643 (P = 0.0015);Gain of phosphorylation at P643 (P = 0.0015);Gain of phosphorylation at P643 (P = 0.0015);
MVP		0.41
MPC		1.7
ClinPred		0.75	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.075
gMVP		0.45

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-67670682;