chr2-46617285-GGT-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_014171.6(CRIPT):​c.7_8del​(p.Cys3ArgfsTer4) variant causes a frameshift change. The variant allele was found at a frequency of 0.000000713 in 1,402,964 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

CRIPT
NM_014171.6 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 5.03
Variant links:
Genes affected
CRIPT (HGNC:14312): (CXXC repeat containing interactor of PDZ3 domain) This gene encodes a protein that binds to the PDZ3 peptide recognition domain. The encoded protein may modulates protein interactions with the cytoskeleton. A mutation in this gene resulted in short stature with microcephaly and distinctive facies. [provided by RefSeq, Jun 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.987 CDS is truncated, and there are 1 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-46617285-GGT-G is Pathogenic according to our data. Variant chr2-46617285-GGT-G is described in ClinVar as [Pathogenic]. Clinvar id is 1343340.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CRIPTNM_014171.6 linkuse as main transcriptc.7_8del p.Cys3ArgfsTer4 frameshift_variant 1/5 ENST00000238892.4 NP_054890.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CRIPTENST00000238892.4 linkuse as main transcriptc.7_8del p.Cys3ArgfsTer4 frameshift_variant 1/51 NM_014171.6 ENSP00000238892 P1
CRIPTENST00000486447.1 linkuse as main transcriptn.608+266_608+267del intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000630
AC:
1
AN:
158696
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
83626
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000165
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.13e-7
AC:
1
AN:
1402964
Hom.:
0
AF XY:
0.00000144
AC XY:
1
AN XY:
692114
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.26e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Rothmund-Thomson syndrome, type 3 Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 29, 2024- -
Pathogenic, criteria provided, single submitterclinical testingHacettepe Pediatric Genetics Laboratory, Hacettepe UniversityMar 09, 2022Sequencing analysis of the CRIPT gene identified a novel homozygous frameshift variant (c.7_8delTG; p.Cys3Argfs*4) in a patient whose clinical features were compatible with Short Stature with Microcephaly and Distinctive Facies. This variant has not been reported in 1000 Genomes Project database and there is only one heterozygous individual in gnomAD data (allele frequency= 0.0000063). This change was classified as “pathogenic” according to the ACMG guidelines. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1558716043; hg19: chr2-46844424; API