dbSNP rs367926026: CPAMD8:p.Arg1815Trp (chr19-16893323-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_015692.5(CPAMD8):c.5443C>T(p.Arg1815Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000631 in 1,537,302 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

CPAMD8
NM_015692.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.02

Publications

0 publications found

Variant links:

Genes affected

CPAMD8 (HGNC:23228): (C3 and PZP like alpha-2-macroglobulin domain containing 8) This gene encodes a member of the protease inhibitor I39 (alpha-2-macroglobulin) family of proteins. These proteins are important in innate and acquired immunity. The encoded protein is membrane-associated and proteolytically processed to generate two chains. Mutations in this gene cause a form of anterior segment dysgenesis, a developmental disorder of the eye. [provided by RefSeq, May 2017]

CPAMD8 Gene-Disease associations (from GenCC):

anterior segment dysgenesis 8
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)

CPAMD8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009071529).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000328 (50/152358) while in subpopulation AFR AF = 0.00118 (49/41586). AF 95% confidence interval is 0.000915. There are 1 homozygotes in GnomAd4. There are 22 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015692.5. 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
	CPAMD8	NM_015692.5	MANE Select	c.5443C>T	p.Arg1815Trp	missense	Exon 42 of 42	NP_056507.3	Q8IZJ3-1
	CPAMD8	NR_147452.2		n.1353C>T		non_coding_transcript_exon	Exon 3 of 3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CPAMD8	ENST00000443236.7	TSL:1 MANE Select	c.5443C>T	p.Arg1815Trp	missense	Exon 42 of 42	ENSP00000402505.3	Q8IZJ3-1
CPAMD8	ENST00000942844.1		c.5407C>T	p.Arg1803Trp	missense	Exon 42 of 42	ENSP00000612903.1
CPAMD8	ENST00000651564.2		c.*1093C>T		3_prime_UTR	Exon 42 of 42	ENSP00000498697.2	Q8IZJ3-2

Frequencies

GnomAD3 genomes

AF:

0.000289

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00104

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

GnomAD2 exomes

AF:

0.0000856

AC:

AN:

151786

AF XY:

0.0000615

show subpopulations

Gnomad AFR exome

AF:

0.00110

Gnomad AMR exome

AF:

0.0000810

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000331

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000339

AC:

AN:

1384944

Hom.:

Cov.:

AF XY:

0.0000264

AC XY:

AN XY:

681124

show subpopulations

African (AFR)

AF:

0.000984

AC:

AN:

31504

American (AMR)

AF:

0.000139

AC:

AN:

35868

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25056

East Asian (EAS)

AF:

0.00

AC:

AN:

35866

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79398

European-Finnish (FIN)

AF:

0.00

AC:

AN:

43402

Middle Eastern (MID)

AF:

0.000209

AC:

AN:

4780

European-Non Finnish (NFE)

AF:

0.00000280

AC:

AN:

1071752

Other (OTH)

AF:

0.000105

AC:

AN:

57318

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

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:

0.000328

AC:

AN:

152358

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.00118

AC:

AN:

41586

American (AMR)

AF:

0.0000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

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:

0.000212

Hom.:

Bravo

AF:

0.000340

ESP6500AA

AF:

0.000530

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000452

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.64

CADD

Benign

1.8

(source)

DANN

Benign

0.76

Eigen

Benign

-2.2

Eigen_PC

Benign

-2.3

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.43

M_CAP

Benign

0.0020

MetaRNN

Benign

0.0091

MetaSVM

Benign

-1.1

PhyloP100

-2.0

PrimateAI

Benign

0.35

Sift4G

Pathogenic

0.0

Vest4

0.15

MVP

0.11

MPC

0.071

ClinPred

0.0048

GERP RS

-3.6

Mutation Taster

=99/1

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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