rs149096794

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001378454.1(ALMS1):​c.6082T>C​(p.Ser2028Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000276 in 1,614,070 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 10/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S2028S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0015 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 2 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

1
2
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7O:1

Conservation

PhyloP100: 1.29

Publications

2 publications found
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]
ALMS1 Gene-Disease associations (from GenCC):
  • Alstrom syndrome
    Inheritance: AR, Unknown Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.006646991).
BP6
Variant 2-73452609-T-C is Benign according to our data. Variant chr2-73452609-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 391989.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00152 (231/152294) while in subpopulation AFR AF = 0.00515 (214/41554). AF 95% confidence interval is 0.00458. There are 2 homozygotes in GnomAd4. There are 118 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378454.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
NM_001378454.1
MANE Select
c.6082T>Cp.Ser2028Pro
missense
Exon 8 of 23NP_001365383.1Q8TCU4-1
ALMS1
NM_015120.4
c.6082T>Cp.Ser2028Pro
missense
Exon 8 of 23NP_055935.4Q8TCU4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.6082T>Cp.Ser2028Pro
missense
Exon 8 of 23ENSP00000482968.1Q8TCU4-1
ALMS1
ENST00000484298.5
TSL:1
c.5956T>Cp.Ser1986Pro
missense
Exon 7 of 22ENSP00000478155.1A0A087WTU9
ALMS1
ENST00000423048.5
TSL:1
n.913T>C
non_coding_transcript_exon
Exon 1 of 9ENSP00000399833.1H7C1D9

Frequencies

GnomAD3 genomes
AF:
0.00150
AC:
229
AN:
152176
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00509
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000786
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000393
AC:
98
AN:
249198
AF XY:
0.000251
show subpopulations
Gnomad AFR exome
AF:
0.00549
Gnomad AMR exome
AF:
0.000348
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000146
AC:
214
AN:
1461776
Hom.:
2
Cov.:
38
AF XY:
0.000110
AC XY:
80
AN XY:
727174
show subpopulations
African (AFR)
AF:
0.00526
AC:
176
AN:
33474
American (AMR)
AF:
0.000291
AC:
13
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53360
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111974
Other (OTH)
AF:
0.000331
AC:
20
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
14
28
42
56
70
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00152
AC:
231
AN:
152294
Hom.:
2
Cov.:
32
AF XY:
0.00158
AC XY:
118
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.00515
AC:
214
AN:
41554
American (AMR)
AF:
0.000785
AC:
12
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68036
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
9
18
28
37
46
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000551
Hom.:
1
Bravo
AF:
0.00174
ESP6500AA
AF:
0.00323
AC:
12
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000480
AC:
58
Asia WGS
AF:
0.000867
AC:
3
AN:
3476
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
2
Alstrom syndrome (4)
-
-
2
not provided (2)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Monogenic diabetes (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.13
T
Eigen
Uncertain
0.22
Eigen_PC
Benign
0.12
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.58
T
MetaRNN
Benign
0.0066
T
MetaSVM
Benign
-1.1
T
PhyloP100
1.3
PrimateAI
Benign
0.37
T
Sift4G
Pathogenic
0.0
D
Vest4
0.25
MVP
0.67
ClinPred
0.070
T
GERP RS
3.4
PromoterAI
0.013
Neutral
Varity_R
0.069
gMVP
0.21
Mutation Taster
=88/12
polymorphism

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

Other links and lift over

dbSNP: rs149096794; hg19: chr2-73679736; API