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GeneBe

1-33519675-C-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_001281956.2(CSMD2):c.10739G>C(p.Arg3580Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000508 in 1,613,948 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

CSMD2
NM_001281956.2 missense, splice_region

Scores

2
1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.94
Variant links:
Genes affected
CSMD2 (HGNC:19290): (CUB and Sushi multiple domains 2) The protein encoded by this gene is thought to be involved in the control of complement cascade of the immune system. Defects in this gene have been associated with schizophrenia. This gene may act as a tumor suppressor for colorectal cancer. [provided by RefSeq, Jan 2020]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, CSMD2
BP4
Computational evidence support a benign effect (MetaRNN=0.02838707).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CSMD2NM_001281956.2 linkuse as main transcriptc.10739G>C p.Arg3580Thr missense_variant, splice_region_variant 70/71 ENST00000373381.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CSMD2ENST00000373381.9 linkuse as main transcriptc.10739G>C p.Arg3580Thr missense_variant, splice_region_variant 70/711 NM_001281956.2 P2Q7Z408-4
CSMD2ENST00000373388.7 linkuse as main transcriptc.10307G>C p.Arg3436Thr missense_variant, splice_region_variant 69/701 Q7Z408-1
CSMD2ENST00000619121.4 linkuse as main transcriptc.10619G>C p.Arg3540Thr missense_variant, splice_region_variant 70/715 A2

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
151982
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000991
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000557
AC:
14
AN:
251256
Hom.:
0
AF XY:
0.0000515
AC XY:
7
AN XY:
135800
show subpopulations
Gnomad AFR exome
AF:
0.000861
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461848
Hom.:
0
Cov.:
33
AF XY:
0.0000275
AC XY:
20
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.000836
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000283
AC:
43
AN:
152100
Hom.:
0
Cov.:
31
AF XY:
0.000256
AC XY:
19
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.000988
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.000329
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000107
AC:
13

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 submitterclinical testingAmbry GeneticsAug 18, 2021The c.10307G>C (p.R3436T) alteration is located in exon 69 (coding exon 69) of the CSMD2 gene. This alteration results from a G to C substitution at nucleotide position 10307, causing the arginine (R) at amino acid position 3436 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
0.59
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.42
Cadd
Benign
21
Dann
Benign
0.80
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.045
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.77
T;T;T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.028
T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
1.3
N;.;.
REVEL
Benign
0.096
Sift
Benign
0.70
T;.;.
Sift4G
Benign
0.58
T;T;T
Polyphen
0.017
.;B;.
Vest4
0.45
MVP
0.35
ClinPred
0.065
T
GERP RS
4.9
Varity_R
0.26
gMVP
0.35

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.

Other links and lift over

dbSNP: rs151161296; hg19: chr1-33985275; API