chr12-54631759-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000257867.5(LACRT):ā€‹c.334G>Cā€‹(p.Gly112Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,613,486 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.000018 ( 0 hom. )

Consequence

LACRT
ENST00000257867.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.50
Variant links:
Genes affected
LACRT (HGNC:16430): (lacritin) The protein encoded by this gene is highly expressed in the lacrimal glands and localized primarily to secretory granules and secretory fluid. It augments lacrimal acinar cell secretion, promotes ductal cell proliferation, and stimulates signaling through tyrosine phosphorylation and release of calcium. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08545995).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LACRTNM_033277.2 linkuse as main transcriptc.334G>C p.Gly112Arg missense_variant 4/5 ENST00000257867.5 NP_150593.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LACRTENST00000257867.5 linkuse as main transcriptc.334G>C p.Gly112Arg missense_variant 4/51 NM_033277.2 ENSP00000257867 P2
LACRTENST00000547511.5 linkuse as main transcriptc.301G>C p.Gly101Arg missense_variant 4/53 ENSP00000447536 A2
LACRTENST00000546721.5 linkuse as main transcriptc.211G>C p.Gly71Arg missense_variant 3/45 ENSP00000448193

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152234
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251354
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
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:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461252
Hom.:
0
Cov.:
30
AF XY:
0.0000193
AC XY:
14
AN XY:
726982
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.0000225
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152234
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74380
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000189
EpiCase
AF:
0.00
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 GeneticsFeb 28, 2024The c.334G>C (p.G112R) alteration is located in exon 4 (coding exon 4) of the LACRT gene. This alteration results from a G to C substitution at nucleotide position 334, causing the glycine (G) at amino acid position 112 to be replaced by an arginine (R). 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
0.24
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
0.0050
DANN
Benign
0.22
DEOGEN2
Benign
0.039
T;.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.0044
N
LIST_S2
Benign
0.44
T;T;T
M_CAP
Benign
0.0012
T
MetaRNN
Benign
0.085
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
.;.;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.22
T
PROVEAN
Uncertain
-3.2
D;D;D
REVEL
Benign
0.017
Sift
Benign
0.28
T;.;.
Sift4G
Benign
0.073
T;T;T
Polyphen
0.10
.;.;B
Vest4
0.16, 0.17
MVP
0.048
MPC
0.056
ClinPred
0.044
T
GERP RS
-1.8
Varity_R
0.25
gMVP
0.038

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs991540500; hg19: chr12-55025543; API