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GeneBe

19-7899499-C-A

Variant summary

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

The NM_025061.6(LRRC8E):c.977C>A(p.Thr326Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000052 in 1,613,976 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000052 ( 1 hom. )

Consequence

LRRC8E
NM_025061.6 missense

Scores

10
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.74
Variant links:
Genes affected
LRRC8E (HGNC:26272): (leucine rich repeat containing 8 VRAC subunit E) This gene encodes a member of a small, conserved family of proteins with similar structure, including a string of extracellular leucine-rich repeats. A related protein was shown to be involved in B-cell development. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jun 2012]

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/exons MANE UniProt
LRRC8ENM_025061.6 linkuse as main transcriptc.977C>A p.Thr326Asn missense_variant 3/3 ENST00000306708.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LRRC8EENST00000306708.11 linkuse as main transcriptc.977C>A p.Thr326Asn missense_variant 3/31 NM_025061.6 P1
ENST00000539278.1 linkuse as main transcriptn.4044G>T non_coding_transcript_exon_variant 1/1
LRRC8EENST00000618098.4 linkuse as main transcriptc.977C>A p.Thr326Asn missense_variant 4/43 P1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152234
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000756
AC:
19
AN:
251352
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000893
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000520
AC:
76
AN:
1461742
Hom.:
1
Cov.:
38
AF XY:
0.0000729
AC XY:
53
AN XY:
727168
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000727
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000371
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152234
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000864
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000576
AC:
7
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

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 GeneticsApr 05, 2023The c.977C>A (p.T326N) alteration is located in exon 3 (coding exon 2) of the LRRC8E gene. This alteration results from a C to A substitution at nucleotide position 977, causing the threonine (T) at amino acid position 326 to be replaced by an asparagine (N). 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
Uncertain
0.46
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.40
Cadd
Benign
22
Dann
Uncertain
0.99
DEOGEN2
Benign
0.028
T;T
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.89
D
M_CAP
Benign
0.044
D
MetaRNN
Uncertain
0.60
D;D
MetaSVM
Benign
-0.60
T
MutationAssessor
Uncertain
2.0
M;M
MutationTaster
Benign
0.80
D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-2.0
N;.
REVEL
Benign
0.15
Sift
Uncertain
0.028
D;.
Sift4G
Uncertain
0.026
D;D
Polyphen
1.0
D;D
Vest4
0.68
MVP
0.93
MPC
0.36
ClinPred
0.14
T
GERP RS
4.0
Varity_R
0.22
gMVP
0.77

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: rs370392318; hg19: chr19-7964384; COSMIC: COSV60718953; COSMIC: COSV60718953; API