7-74223726-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_032464.3(LAT2):​c.391G>T​(p.Asp131Tyr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,613,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D131N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

LAT2
NM_032464.3 missense, splice_region

Scores

1
3
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.37

Publications

0 publications found
Variant links:
Genes affected
LAT2 (HGNC:12749): (linker for activation of T cells family member 2) This gene is one of the contiguous genes at 7q11.23 commonly deleted in Williams syndrome, a multisystem developmental disorder. This gene consists of at least 14 exons, and its alternative splicing generates 3 transcript variants, all encoding the same protein. [provided by RefSeq, Jul 2008]
RFC2 (HGNC:9970): (replication factor C subunit 2) This gene encodes a member of the activator 1 small subunits family. The elongation of primed DNA templates by DNA polymerase delta and epsilon requires the action of the accessory proteins, proliferating cell nuclear antigen (PCNA) and replication factor C (RFC). Replication factor C, also called activator 1, is a protein complex consisting of five distinct subunits. This gene encodes the 40 kD subunit, which has been shown to be responsible for binding ATP and may help promote cell survival. Disruption of this gene is associated with Williams syndrome. Alternatively spliced transcript variants encoding distinct isoforms have been described. A pseudogene of this gene has been defined on chromosome 2. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.35226613).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032464.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LAT2
NM_032464.3
MANE Select
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 11 of 14NP_115853.2Q9GZY6-1
LAT2
NM_014146.4
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 10 of 13NP_054865.2
LAT2
NM_032463.3
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 11 of 14NP_115852.1Q9GZY6-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LAT2
ENST00000460943.6
TSL:1 MANE Select
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 11 of 14ENSP00000420494.1Q9GZY6-1
LAT2
ENST00000275635.11
TSL:1
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 11 of 14ENSP00000275635.7Q9GZY6-1
LAT2
ENST00000344995.9
TSL:1
c.391G>Tp.Asp131Tyr
missense splice_region
Exon 10 of 13ENSP00000344881.5Q9GZY6-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152086
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000200
AC:
5
AN:
249444
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000506
AC:
74
AN:
1461768
Hom.:
0
Cov.:
31
AF XY:
0.0000550
AC XY:
40
AN XY:
727198
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000447
AC:
2
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000621
AC:
69
AN:
1111940
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.451
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152086
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74282
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41428
American (AMR)
AF:
0.00
AC:
0
AN:
15240
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000165
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
21
DANN
Benign
0.69
DEOGEN2
Uncertain
0.69
D
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.76
D
LIST_S2
Benign
0.50
T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.35
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L
PhyloP100
2.4
PrimateAI
Benign
0.40
T
PROVEAN
Pathogenic
-6.6
D
REVEL
Benign
0.093
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.38
MutPred
0.20
Gain of phosphorylation at D131 (P = 0.0222)
MVP
0.31
MPC
0.52
ClinPred
0.88
D
GERP RS
1.1
Varity_R
0.33
gMVP
0.17
Mutation Taster
=95/5
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs548830059; hg19: chr7-73638056; API