2-73557318-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000613296.6(ALMS1):​c.10177G>T​(p.Ala3393Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,158 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A3393G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Consequence

ALMS1
ENST00000613296.6 missense

Scores

1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: -0.0790
Variant links:
Genes affected
ALMS1 (HGNC:428): (ALMS1 centrosome and basal body associated protein) This gene encodes a protein containing a large tandem-repeat domain as well as additional low complexity regions. The encoded protein functions in microtubule organization, particularly in the formation and maintanance of cilia. Mutations in this gene cause Alstrom syndrome. There is a pseudogene for this gene located adjacent in the same region of chromosome 2. Alternative splice variants have been described but their full length nature has not been determined. [provided by RefSeq, Apr 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.034843564).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALMS1NM_001378454.1 linkuse as main transcriptc.10177G>T p.Ala3393Ser missense_variant 14/23 ENST00000613296.6 NP_001365383.1
ALMS1NM_015120.4 linkuse as main transcriptc.10180G>T p.Ala3394Ser missense_variant 14/23 NP_055935.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALMS1ENST00000613296.6 linkuse as main transcriptc.10177G>T p.Ala3393Ser missense_variant 14/231 NM_001378454.1 ENSP00000482968 P3Q8TCU4-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152158
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152158
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74324
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Alstrom syndrome Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 20, 2021- -
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Feb 26, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
6.3
DANN
Uncertain
0.97
DEOGEN2
Benign
0.010
T;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.59
T;T;T
M_CAP
Benign
0.0013
T
MetaRNN
Benign
0.035
T;T;T
MetaSVM
Benign
-0.92
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.24
T
Sift4G
Benign
0.58
T;T;T
Vest4
0.060
MVP
0.048
ClinPred
0.078
T
GERP RS
1.9
Varity_R
0.019
gMVP
0.087

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: rs145678202; hg19: chr2-73784445; API