Variant 1-15438469-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_007272.3(CTRC):c.5T>G(p.Leu2Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. L2L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CTRC
NM_007272.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.21

Variant links:

Genes affected

CTRC (HGNC:2523): (chymotrypsin C) This gene encodes a member of the peptidase S1 family. The encoded protein is a serum calcium-decreasing factor that has chymotrypsin-like protease activity. Alternatively spliced transcript variants have been observed, but their full-length nature has not been determined. [provided by RefSeq, Jul 2008]

CTRC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTRC	NM_007272.3 link	c.5T>G	p.Leu2Trp	missense_variant	Exon 1 of 8	ENST00000375949.5	NP_009203.2	Q99895
CTRC	XM_011540550.2 link	c.5T>G	p.Leu2Trp	missense_variant	Exon 1 of 7		XP_011538852.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CTRC	ENST00000375949.5 link	c.5T>G	p.Leu2Trp	missense_variant	Exon 1 of 8	1	NM_007272.3	ENSP00000365116.4	Q99895
CTRC	ENST00000375943.6 link	c.5T>G	p.Leu2Trp	missense_variant	Exon 1 of 5	1		ENSP00000365110.2	Q68DR9
CTRC	ENST00000476813.5 link	n.17T>G		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727232

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hereditary pancreatitis

Uncertain:2

Jun 30, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.L2W variant (also known as c.5T>G), located in coding exon 1 of the CTRC gene, results from a T to G substitution at nucleotide position 5. The leucine at codon 2 is replaced by tryptophan, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

Aug 15, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with CTRC-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces leucine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 2 of the CTRC protein (p.Leu2Trp). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.040

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.079

T;T

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.44

T;.

M_CAP

Pathogenic

0.29

MetaRNN

Uncertain

0.71

D;D

MetaSVM

Uncertain

0.058

MutationAssessor

Uncertain

2.3

M;.

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-3.3

D;D

REVEL

Uncertain

0.54

Sift

Uncertain

0.0030

D;.

Sift4G

Uncertain

0.0030

D;.

Polyphen

1.0

D;.

Vest4

0.52

MutPred

0.49

Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);

MVP

0.95

MPC

0.93

ClinPred

0.93

GERP RS

5.3

Varity_R

0.27

gMVP

0.70

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over