chr1-15466001-A-T

Variant summary

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

The NM_033440.3(CELA2A):​c.496A>T​(p.Asn166Tyr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Consequence

CELA2A
NM_033440.3 missense, splice_region

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.00
Variant links:
Genes affected
CELA2A (HGNC:24609): (chymotrypsin like elastase 2A) Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Humans have six elastase genes which encode the structurally similar proteins elastase 1, 2, 2A, 2B, 3A, and 3B. Like most of the human elastases, elastase 2A is secreted from the pancreas as a zymogen. In other species, elastase 2A has been shown to preferentially cleave proteins after leucine, methionine, and phenylalanine residues. [provided by RefSeq, May 2009]
CELA2B (HGNC:29995): (chymotrypsin like elastase 2B) Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Humans have six elastase genes which encode the structurally similar proteins elastase 1, 2, 2A, 2B, 3A, and 3B. Like most of the human elastases, elastase 2B is secreted from the pancreas as a zymogen. In other species, elastase 2B has been shown to preferentially cleave proteins after leucine, methionine, and phenylalanine residues. [provided by RefSeq, Jul 2008]

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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/exons MANE UniProt
CELA2ANM_033440.3 linkuse as main transcriptc.496A>T p.Asn166Tyr missense_variant, splice_region_variant 6/8 ENST00000359621.5
LOC105376767XR_002958256.2 linkuse as main transcriptn.367-1129T>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CELA2AENST00000359621.5 linkuse as main transcriptc.496A>T p.Asn166Tyr missense_variant, splice_region_variant 6/81 NM_033440.3 P1
CELA2BENST00000494280.1 linkuse as main transcriptn.93A>T non_coding_transcript_exon_variant 1/65

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 17, 2022The c.496A>T (p.N166Y) alteration is located in exon 6 (coding exon 6) of the CELA2A gene. This alteration results from a A to T substitution at nucleotide position 496, causing the asparagine (N) at amino acid position 166 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.070
CADD
Benign
16
DANN
Uncertain
0.97
DEOGEN2
Uncertain
0.59
D
Eigen
Benign
0.043
Eigen_PC
Benign
-0.076
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.71
T
M_CAP
Benign
0.061
D
MetaRNN
Uncertain
0.60
D
MetaSVM
Uncertain
0.41
D
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-5.8
D
REVEL
Pathogenic
0.65
Sift
Benign
0.067
T
Sift4G
Benign
0.35
T
Polyphen
0.99
D
Vest4
0.50
MutPred
0.56
Gain of solvent accessibility (P = 0.0971);
MVP
0.81
MPC
1.0
ClinPred
0.98
D
GERP RS
2.5
Varity_R
0.12
gMVP
0.68

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.

Other links and lift over

hg19: chr1-15792496; API