NM_014171.6:c.83-4dupA

Variant names:

• chr2-46619622-T-TA
• NM_014171.6:c.83-4dupA

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_014171.6(CRIPT):​c.83-4dupA variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,452,694 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CRIPT NM_014171.6 splice_region, intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.353
• Publications: 0 publications found

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]

CRIPT Gene-Disease associations (from GenCC):

• Rothmund-Thomson syndrome, type 3

  Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 2-46619622-T-TA is Benign according to our data. Variant chr2-46619622-T-TA is described in ClinVar as [Likely_benign]. Clinvar id is 2791298.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CRIPT	NM_014171.6	c.83-4dupA		splice_region_variant, intron_variant	Intron 2 of 4	ENST00000238892.4	NP_054890.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CRIPT	ENST00000238892.4	c.83-5_83-4insA		splice_region_variant, intron_variant	Intron 2 of 4	1	NM_014171.6	ENSP00000238892.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1452694 Hom.: 0 Cov.: 28 AF XY: 0.00000277 AC XY: 2 AN XY: 723146

African (AFR) AF: 0.00 AC: 0 AN: 33170

American (AMR) AF: 0.00 AC: 0 AN: 44250

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

East Asian (EAS) AF: 0.00 AC: 0 AN: 39448

South Asian (SAS) AF: 0.00 AC: 0 AN: 85512

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53366

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5632

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1105256

Other (OTH) AF: 0.0000333 AC: 2 AN: 60034

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Nov 25, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.35

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

Other links and lift over

hg19: chr2-46846761;