rs193921034

chr1-33571681-C-Achr1-33571681-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_001281956.2(CSMD2):c.7808G>T(p.Arg2603Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CSMD2 NM_001281956.2 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 6.16

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, CSMD2
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.745

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CSMD2	NM_001281956.2	c.7808G>T	p.Arg2603Leu	missense_variant	51/71	ENST00000373381.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CSMD2	ENST00000373381.9	c.7808G>T	p.Arg2603Leu	missense_variant	51/71	1	NM_001281956.2	P2
CSMD2	ENST00000373388.7	c.7814G>T	p.Arg2605Leu	missense_variant	52/70	1
CSMD2	ENST00000619121.4	c.7688G>T	p.Arg2563Leu	missense_variant	51/71	5		A2
CSMD2	ENST00000465819.1	c.131G>T	p.Arg44Leu	missense_variant	2/5	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1419668 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 702006

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

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Malignant tumor of prostate Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

Science for Life laboratory, Karolinska Institutet

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.47
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
Cadd	Uncertain	25
Dann	Uncertain	0.99
Eigen	Benign	0.058
Eigen_PC	Uncertain	0.22
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.82	T;T;T
M_CAP	Benign	0.037	D
MetaRNN	Pathogenic	0.75	D;D;D
MetaSVM	Benign	-0.86	T
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.65	T
PROVEAN	Uncertain	-3.3	D;.;.
REVEL	Uncertain	0.38
Sift	Benign	0.20	T;.;.
Sift4G	Benign	0.21	T;T;T
Polyphen		0.013	.;B;.
Vest4		0.88
MutPred		0.68		.;Loss of disorder (P = 0.1146);.;
MVP		0.47
ClinPred		0.98	D
GERP RS		5.0
Varity_R		0.40
gMVP		0.63

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

Other links and lift over

dbSNP: rs193921034; hg19: chr1-34037281; COSMIC: COSV53912174;