Genetic Variant CRADD:p.Arg166Pro (chr12-93850168-G-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_003805.5(CRADD):c.497G>C(p.Arg166Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,436 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R166H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CRADD
NM_003805.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.70

Publications

0 publications found

Variant links:

Genes affected

CRADD (HGNC:2340): (CASP2 and RIPK1 domain containing adaptor with death domain) This gene encodes a protein containing a death domain (DD) motif. This protein recruits caspase 2/ICH1 to the cell death signal transduction complex, which includes tumor necrosis factor receptor 1 (TNFR1A) and RIPK1/RIP kinase, and acts in promoting apoptosis. A mutation in this gene was associated with cognitive disability. A related pseudogene is found on chromosome 3. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

CRADD Gene-Disease associations (from GenCC):

syndromic intellectual disability
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
intellectual disability, autosomal recessive 34
Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CRADD links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_003805.5

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CRADD	NM_003805.5 link	c.497G>C	p.Arg166Pro	missense_variant	Exon 3 of 3	ENST00000332896.8	NP_003796.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CRADD	ENST00000332896.8 link	c.497G>C	p.Arg166Pro	missense_variant	Exon 3 of 3	1	NM_003805.5	ENSP00000327647.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461436

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726992

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44684

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111722

Other (OTH)

AF:

0.00

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.050

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

D;D

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Benign

0.76

LIST_S2

Benign

0.81

.;T

M_CAP

Benign

0.068

MetaRNN

Uncertain

0.69

D;D

MetaSVM

Benign

-0.36

MutationAssessor

Benign

1.8

L;L

PhyloP100

1.7

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.8

N;N

REVEL

Uncertain

0.58

Sift

Benign

0.073

T;T

Sift4G

Benign

0.11

T;T

Polyphen

0.90

P;P

Vest4

0.59

MutPred

0.55

Loss of MoRF binding (P = 4e-04);Loss of MoRF binding (P = 4e-04);

MVP

0.97

MPC

0.50

ClinPred

0.89

GERP RS

4.7

Varity_R

0.96

gMVP

0.73

Mutation Taster

=58/42

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over