Variant 19-42387444-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_032488.4(CNFN):c.145G>T(p.Ala49Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000125 in 1,596,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CNFN
NM_032488.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.49

Variant links:

Genes affected

CNFN (HGNC:30183): (cornifelin) Predicted to be involved in keratinization. Located in cornified envelope. [provided by Alliance of Genome Resources, Apr 2022]

CNFN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3784477).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CNFN	NM_032488.4 linkuse as main transcript	c.145G>T	p.Ala49Ser	missense_variant	3/4	ENST00000222032.10	NP_115877.2
CNFN	XM_005259332.4 linkuse as main transcript	c.184G>T	p.Ala62Ser	missense_variant	4/5		XP_005259389.1
CNFN	XM_011527396.3 linkuse as main transcript	c.184G>T	p.Ala62Ser	missense_variant	4/5		XP_011525698.1
CNFN	XM_011527397.3 linkuse as main transcript	c.184G>T	p.Ala62Ser	missense_variant	4/5		XP_011525699.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CNFN	ENST00000222032.10 linkuse as main transcript	c.145G>T	p.Ala49Ser	missense_variant	3/4	1	NM_032488.4	ENSP00000222032	P1
CNFN	ENST00000597255.1 linkuse as main transcript	c.145G>T	p.Ala49Ser	missense_variant	4/5	1		ENSP00000469590	P1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.92e-7

AC:

AN:

1444460

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

717412

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:

9.05e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 21, 2022

The c.145G>T (p.A49S) alteration is located in exon 3 (coding exon 2) of the CNFN gene. This alteration results from a G to T substitution at nucleotide position 145, causing the alanine (A) at amino acid position 49 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.081

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Benign

0.029

T;T

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.29

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.59

.;T

M_CAP

Uncertain

0.098

MetaRNN

Benign

0.38

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.98

L;L

MutationTaster

Benign

0.91

PrimateAI

Uncertain

0.73

PROVEAN

Benign

0.040

N;.

REVEL

Benign

0.22

Sift

Benign

0.41

T;.

Sift4G

Benign

0.51

T;T

Polyphen

0.75

P;P

Vest4

0.58

MutPred

0.53

Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);

MVP

0.22

MPC

0.48

ClinPred

0.60

GERP RS

2.6

Varity_R

0.073

gMVP

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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