Genetic Variant CNN2:p.Asp155Asn (chr19-1036202-G-A) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 1P and 8B. PP2BP4_StrongBS2

The NM_004368.4(CNN2):c.463G>A(p.Asp155Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000713 in 1,557,538 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000063 ( 2 hom. )

Consequence

CNN2
NM_004368.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.74

Publications

1 publications found

Variant links:

Genes affected

CNN2 (HGNC:2156): (calponin 2) The protein encoded by this gene, which can bind actin, calmodulin, troponin C, and tropomyosin, may function in the structural organization of actin filaments. The encoded protein could play a role in smooth muscle contraction and cell adhesion. Several pseudogenes of this gene have been identified, and are present on chromosomes 1, 2, 3, 6, 9, 11, 13, 15, 16, 21 and 22. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2015]

CNN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 2 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: -0.15171 (below the threshold of 3.09). Trascript score misZ: 0.22112 (below the threshold of 3.09).

BP4

Computational evidence support a benign effect (MetaRNN=0.06736404).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004368.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CNN2	NM_004368.4	MANE Select	c.463G>A	p.Asp155Asn	missense	Exon 5 of 7	NP_004359.1	Q99439-1
CNN2	NM_001303501.2		c.526G>A	p.Asp176Asn	missense	Exon 5 of 7	NP_001290430.1	B4DUT8
CNN2	NM_001303499.2		c.430G>A	p.Asp144Asn	missense	Exon 5 of 7	NP_001290428.1	B4DDF4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CNN2	ENST00000263097.9	TSL:1 MANE Select	c.463G>A	p.Asp155Asn	missense	Exon 5 of 7	ENSP00000263097.2	Q99439-1
CNN2	ENST00000607102.1	TSL:1	c.34-214G>A		intron	N/A	ENSP00000475175.1	U3KPS3
CNN2	ENST00000562958.6	TSL:2	c.526G>A	p.Asp176Asn	missense	Exon 5 of 7	ENSP00000456436.1	B4DUT8

Frequencies

GnomAD3 genomes

AF:

0.000146

AC:

AN:

150526

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000293

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000132

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000195

Gnomad SAS

AF:

0.00127

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000488

GnomAD2 exomes

AF:

0.000147

AC:

AN:

244632

AF XY:

0.000189

show subpopulations

Gnomad AFR exome

AF:

0.000372

Gnomad AMR exome

AF:

0.0000298

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000550

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000181

Gnomad OTH exome

AF:

0.000337

GnomAD4 exome

AF:

0.0000633

AC:

AN:

1406898

Hom.:

Cov.:

AF XY:

0.0000906

AC XY:

AN XY:

695222

show subpopulations

African (AFR)

AF:

0.000287

AC:

AN:

31358

American (AMR)

AF:

0.0000882

AC:

AN:

34016

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22746

East Asian (EAS)

AF:

0.0000769

AC:

AN:

39008

South Asian (SAS)

AF:

0.000742

AC:

AN:

76802

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51462

Middle Eastern (MID)

AF:

0.000399

AC:

AN:

5014

European-Non Finnish (NFE)

AF:

0.00000735

AC:

AN:

1088482

Other (OTH)

AF:

0.000121

AC:

AN:

58010

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000146

AC:

AN:

150640

Hom.:

Cov.:

AF XY:

0.000109

AC XY:

AN XY:

73546

show subpopulations

African (AFR)

AF:

0.000292

AC:

AN:

41028

American (AMR)

AF:

0.000132

AC:

AN:

15120

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3442

East Asian (EAS)

AF:

0.000195

AC:

AN:

5118

South Asian (SAS)

AF:

0.00127

AC:

AN:

4734

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10440

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67494

Other (OTH)

AF:

0.000483

AC:

AN:

2070

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000219

Hom.:

Bravo

AF:

0.000166

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000173

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.072

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.55

Eigen

Benign

0.19

Eigen_PC

Benign

0.10

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.71

M_CAP

Benign

0.064

MetaRNN

Benign

0.067

MetaSVM

Benign

-0.71

MutationAssessor

Benign

1.6

PhyloP100

9.7

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-2.2

REVEL

Benign

0.20

Sift

Benign

0.14

Sift4G

Benign

0.13

Polyphen

0.99

Vest4

0.88

MVP

0.72

MPC

0.098

ClinPred

0.12

GERP RS

3.7

Varity_R

0.19

gMVP

0.34

Mutation Taster

=77/23

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over