Genetic Variant CPAMD8:p.Arg1848Gln (chr19-16893223-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_015692.5(CPAMD8):c.5543G>A(p.Arg1848Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000056 in 1,588,942 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1848W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

CPAMD8
NM_015692.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.175

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 -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.019369006).

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.5543G>A	p.Arg1848Gln	missense	Exon 42 of 42	NP_056507.3	Q8IZJ3-1
	CPAMD8	NR_147452.2		n.1453G>A		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.5543G>A	p.Arg1848Gln	missense	Exon 42 of 42	ENSP00000402505.3	Q8IZJ3-1
CPAMD8	ENST00000942844.1		c.5507G>A	p.Arg1836Gln	missense	Exon 42 of 42	ENSP00000612903.1
CPAMD8	ENST00000651564.2		c.*1193G>A		3_prime_UTR	Exon 42 of 42	ENSP00000498697.2	Q8IZJ3-2

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000741

AC:

AN:

202446

AF XY:

0.0000726

show subpopulations

Gnomad AFR exome

AF:

0.0000868

Gnomad AMR exome

AF:

0.000421

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000117

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000550

AC:

AN:

1436604

Hom.:

Cov.:

AF XY:

0.0000491

AC XY:

AN XY:

712942

show subpopulations

African (AFR)

AF:

0.000183

AC:

AN:

32806

American (AMR)

AF:

0.000285

AC:

AN:

42104

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25620

East Asian (EAS)

AF:

0.0000260

AC:

AN:

38506

South Asian (SAS)

AF:

0.0000120

AC:

AN:

83192

European-Finnish (FIN)

AF:

0.0000196

AC:

AN:

51110

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.0000519

AC:

AN:

1098236

Other (OTH)

AF:

0.0000169

AC:

AN:

59306

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

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:

0.0000656

AC:

AN:

152338

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74488

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41578

American (AMR)

AF:

0.0000653

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

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:

0.000121

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000123

AC:

ExAC

AF:

0.0000584

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

0.088

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.62

CADD

Benign

9.4

(source)

DANN

Benign

0.53

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.024

LIST_S2

Benign

0.48

M_CAP

Benign

0.0024

MetaRNN

Benign

0.019

MetaSVM

Benign

-1.0

PhyloP100

0.17

PrimateAI

Benign

0.29

Sift4G

Benign

0.39

Vest4

0.13

MVP

0.061

MPC

0.067

ClinPred

0.016

GERP RS

-0.53

Mutation Taster

=100/0

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