chr12-54633191-T-C

Variant summary

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

The NM_033277.2(LACRT):ā€‹c.101A>Gā€‹(p.Glu34Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,461,728 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: not found (cov: 31)
Exomes š‘“: 0.000032 ( 0 hom. )

Consequence

LACRT
NM_033277.2 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.08
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]

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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=0.11728647).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LACRTNM_033277.2 linkuse as main transcriptc.101A>G p.Glu34Gly missense_variant 2/5 ENST00000257867.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LACRTENST00000257867.5 linkuse as main transcriptc.101A>G p.Glu34Gly missense_variant 2/51 NM_033277.2 P2
LACRTENST00000547511.5 linkuse as main transcriptc.101A>G p.Glu34Gly missense_variant 2/53 A2
LACRTENST00000546721.5 linkuse as main transcriptc.11A>G p.Glu4Gly missense_variant 1/45
LACRTENST00000549816.1 linkuse as main transcriptn.147A>G non_coding_transcript_exon_variant 2/32

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250964
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135622
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000322
AC:
47
AN:
1461728
Hom.:
0
Cov.:
31
AF XY:
0.0000385
AC XY:
28
AN XY:
727184
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000414
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
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 23, 2023The c.101A>G (p.E34G) alteration is located in exon 2 (coding exon 2) of the LACRT gene. This alteration results from a A to G substitution at nucleotide position 101, causing the glutamic acid (E) at amino acid position 34 to be replaced by a glycine (G). 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
0.12
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
13
DANN
Benign
0.97
DEOGEN2
Benign
0.081
T;.;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.024
N
LIST_S2
Benign
0.46
T;T;T
M_CAP
Benign
0.0014
T
MetaRNN
Benign
0.12
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.24
T
PROVEAN
Pathogenic
-7.0
D;D;D
REVEL
Benign
0.20
Sift
Pathogenic
0.0
D;.;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
0.0040
.;.;B
Vest4
0.098, 0.070
MVP
0.040
MPC
0.027
ClinPred
0.11
T
GERP RS
-4.3
Varity_R
0.18
gMVP
0.078

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs370080329; hg19: chr12-55026975; API