1-33527223-G-T

Variant names:

• chr1-33527223-G-T
• rs149656829
• NM_001281956.2:c.10207C>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_001281956.2(CSMD2):​c.10207C>A​(p.Arg3403Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CSMD2 NM_001281956.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.33
• Publications: 8 publications found

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

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.3).
• BP7: Synonymous conserved (PhyloP=3.33 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001281956.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSMD2	NM_001281956.2	MANE Select	c.10207C>A	p.Arg3403Arg	synonymous	Exon 65 of 71	NP_001268885.1	Q7Z408-4
	CSMD2	NM_052896.5		c.9775C>A	p.Arg3259Arg	synonymous	Exon 64 of 70	NP_443128.2	Q7Z408-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSMD2	ENST00000373381.9	TSL:1 MANE Select	c.10207C>A	p.Arg3403Arg	synonymous	Exon 65 of 71	ENSP00000362479.4	Q7Z408-4
	CSMD2	ENST00000373388.7	TSL:1	c.9775C>A	p.Arg3259Arg	synonymous	Exon 64 of 70	ENSP00000362486.3	Q7Z408-1
	CSMD2	ENST00000619121.4	TSL:5	c.10087C>A	p.Arg3363Arg	synonymous	Exon 65 of 71	ENSP00000483463.1	A0A087X0K4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 2

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.30
CADD	Benign	3.0
DANN	Benign	0.78
PhyloP100		3.3
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs149656829; hg19: chr1-33992823;