Genetic Variant CSPG4:p.Gly2267Ser (chr15-75675720-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001897.5(CSPG4):c.6799G>A(p.Gly2267Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000566 in 1,589,584 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G2267R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000049 ( 0 hom. )

Consequence

CSPG4
NM_001897.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.79

Publications

1 publications found

Variant links:

Genes affected

CSPG4 (HGNC:2466): (chondroitin sulfate proteoglycan 4) A human melanoma-associated chondroitin sulfate proteoglycan plays a role in stabilizing cell-substratum interactions during early events of melanoma cell spreading on endothelial basement membranes. CSPG4 represents an integral membrane chondroitin sulfate proteoglycan expressed by human malignant melanoma cells. [provided by RefSeq, Jul 2008]

CSPG4 Gene-Disease associations (from GenCC):

schizophrenia
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

CSPG4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14234811).

BS2

High AC in GnomAdExome4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001897.5. 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
	CSPG4	NM_001897.5	MANE Select	c.6799G>A	p.Gly2267Ser	missense	Exon 10 of 10	NP_001888.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CSPG4	ENST00000308508.5	TSL:1 MANE Select	c.6799G>A	p.Gly2267Ser	missense	Exon 10 of 10	ENSP00000312506.5	Q6UVK1
CSPG4	ENST00000941445.1		c.4078G>A	p.Gly1360Ser	missense	Exon 10 of 10	ENSP00000611504.1
CSPG4	ENST00000900311.1		c.3262G>A	p.Gly1088Ser	missense	Exon 9 of 9	ENSP00000570370.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000846

AC:

AN:

236536

AF XY:

0.00000785

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000301

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000939

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000487

AC:

AN:

1437264

Hom.:

Cov.:

AF XY:

0.00000562

AC XY:

AN XY:

711932

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33000

American (AMR)

AF:

0.0000463

AC:

AN:

43206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24664

East Asian (EAS)

AF:

0.0000254

AC:

AN:

39338

South Asian (SAS)

AF:

0.00

AC:

AN:

83366

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52000

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5628

European-Non Finnish (NFE)

AF:

0.00000365

AC:

AN:

1096790

Other (OTH)

AF:

0.00

AC:

AN:

59272

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.432

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41576

American (AMR)

AF:

0.0000653

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.00

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

Eigen

Benign

-0.054

Eigen_PC

Benign

-0.042

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.72

M_CAP

Benign

0.021

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

5.8

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.4

REVEL

Benign

0.088

Sift

Benign

0.073

Sift4G

Pathogenic

0.0

Polyphen

0.92

Vest4

0.23

MutPred

0.40

Gain of phosphorylation at G2267 (P = 0.0431)

MVP

0.36

MPC

0.71

ClinPred

0.86

GERP RS

4.1

Varity_R

0.093

gMVP

0.70

Mutation Taster

=59/41

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

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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