Genetic Variant NM_198123.2:c.10928T>C (chr8-112228792-A-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP3BP4BS2

The NM_198123.2(CSMD3):c.10928T>C(p.Ile3643Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000642 in 1,588,354 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 1 hom. )

Consequence

CSMD3
NM_198123.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.32

Variant links:

Genes affected

CSMD3 (HGNC:19291): (CUB and Sushi multiple domains 3) Predicted to be involved in regulation of dendrite development. Predicted to be located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CSMD3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP3

Multiple lines of computational evidence support a deleterious effect 7: AlphaMissense, BayesDel_noAF, Cadd, FATHMM_MKL, phyloP100way_vertebrate, PrimateAI, PROVEAN [when BayesDel_addAF, max_spliceai, M_CAP, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.36925814).

BS2

High AC in GnomAd4 at 49 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CSMD3	NM_198123.2 link	c.10928T>C	p.Ile3643Thr	missense_variant	Exon 70 of 71	ENST00000297405.10	NP_937756.1	Q7Z407-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CSMD3	ENST00000297405.10 link	c.10928T>C	p.Ile3643Thr	missense_variant	Exon 70 of 71	1	NM_198123.2	ENSP00000297405.5		Q7Z407-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00116

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000877

AC:

AN:

250988

Hom.:

AF XY:

0.0000369

AC XY:

AN XY:

135674

show subpopulations

Gnomad AFR exome

AF:

0.00117

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000466

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000369

AC:

AN:

1436022

Hom.:

Cov.:

AF XY:

0.0000237

AC XY:

AN XY:

716224

show subpopulations

Gnomad4 AFR exome

AF:

0.000763

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.00000551

Gnomad4 OTH exome

AF:

0.000168

GnomAD4 genome

AF:

0.000322

AC:

AN:

152332

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74512

show subpopulations

Gnomad4 AFR

AF:

0.00115

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000620

Hom.:

Bravo

AF:

0.000419

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000115

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.10928T>C (p.I3643T) alteration is located in exon 70 (coding exon 70) of the CSMD3 gene. This alteration results from a T to C substitution at nucleotide position 10928, causing the isoleucine (I) at amino acid position 3643 to be replaced by a threonine (T). 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

Pathogenic

0.97

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

.;T;T;.

Eigen

Uncertain

0.68

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

1.0

D;D;D;D

M_CAP

Benign

0.059

MetaRNN

Benign

0.37

T;T;T;T

MetaSVM

Benign

-0.51

MutationAssessor

Uncertain

2.5

.;M;.;.

PrimateAI

Pathogenic

0.93

PROVEAN

Pathogenic

-4.5

D;D;D;D

REVEL

Uncertain

0.53

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

0.067

B;D;.;D

Vest4

0.91

MVP

0.75

MPC

0.61

ClinPred

0.41

GERP RS

5.7

Varity_R

0.76

gMVP

0.74

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