rs144286923

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_007272.3(CTRC):​c.286G>A​(p.Glu96Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000545 in 1,614,154 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. E96Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

CTRC
NM_007272.3 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 6.26
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.778

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CTRCNM_007272.3 linkc.286G>A p.Glu96Lys missense_variant Exon 4 of 8 ENST00000375949.5 NP_009203.2 Q99895
CTRCXM_011540550.2 linkc.286G>A p.Glu96Lys missense_variant Exon 4 of 7 XP_011538852.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CTRCENST00000375949.5 linkc.286G>A p.Glu96Lys missense_variant Exon 4 of 8 1 NM_007272.3 ENSP00000365116.4 Q99895
CTRCENST00000375943.6 linkc.96G>A p.Thr32Thr synonymous_variant Exon 2 of 5 1 ENSP00000365110.2 Q68DR9
CTRCENST00000476813.5 linkn.108G>A non_coding_transcript_exon_variant Exon 2 of 3 3
CTRCENST00000483406.1 linkn.196G>A non_coding_transcript_exon_variant Exon 3 of 6 5

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251402
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135880
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
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:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000554
AC:
81
AN:
1461862
Hom.:
0
Cov.:
32
AF XY:
0.0000495
AC XY:
36
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
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:
0.0000638
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152292
Hom.:
0
Cov.:
32
AF XY:
0.0000671
AC XY:
5
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000675
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary pancreatitis Uncertain:2
Dec 10, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.286G>A (p.E96K) alteration is located in exon 4 (coding exon 4) of the CTRC gene. This alteration results from a G to A substitution at nucleotide position 286, causing the glutamic acid (E) at amino acid position 96 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Nov 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 96 of the CTRC protein (p.Glu96Lys). This variant is present in population databases (rs144286923, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with CTRC-related conditions. ClinVar contains an entry for this variant (Variation ID: 240764). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on CTRC protein function. 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. -

not provided Uncertain:2
Feb 20, 2018
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The CTRC c.286G>A; p.Glu96Lys variant (rs144286923), to our knowledge, is not reported in the medical literature or in gene-specific databases. This variant is reported in ClinVar (Variation ID: 240764) and is seen in the general population at a low overall frequency of 0.004% (10/277112 alleles) in the Genome Aggregation Database. The glutamic acid at codon 96 is moderately conserved and computational algorithms (SIFT: Tolerated; 0.13, PolyPhen2: Probably damaging; 0.944) predict conflicting effects of this variant on protein structure/function. Given the lack of clinical and functional data regarding this variant, its clinical significance cannot be determined with certainty. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.60
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Uncertain
0.090
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T
Eigen
Uncertain
0.21
Eigen_PC
Benign
0.11
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.86
D
M_CAP
Uncertain
0.22
D
MetaRNN
Pathogenic
0.78
D
MetaSVM
Uncertain
0.70
D
MutationAssessor
Benign
1.9
L
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-2.7
D
REVEL
Uncertain
0.53
Sift
Benign
0.072
T
Sift4G
Benign
0.17
T
Polyphen
1.0
D
Vest4
0.73
MVP
0.94
MPC
0.77
ClinPred
0.68
D
GERP RS
4.4
Varity_R
0.48
gMVP
0.64

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

LitVar

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

Other links and lift over

dbSNP: rs144286923; hg19: chr1-15768998; API