rs201819880

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_001378454.1(ALMS1):​c.11353A>G​(p.Ile3785Val) variant causes a missense change. The variant allele was found at a frequency of 0.000594 in 1,613,408 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I3785T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00061 ( 1 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

1
4
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:4

Conservation

PhyloP100: 3.71

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 -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07804558).
BP6
Variant 2-73573230-A-G is Benign according to our data. Variant chr2-73573230-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 240977.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00044 (67/152146) while in subpopulation NFE AF = 0.000882 (60/68024). AF 95% confidence interval is 0.000703. There are 0 homozygotes in GnomAd4. There are 28 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

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.11353A>Gp.Ile3785Val
missense
Exon 16 of 23NP_001365383.1Q8TCU4-1
ALMS1
NM_015120.4
c.11353A>Gp.Ile3785Val
missense
Exon 16 of 23NP_055935.4Q8TCU4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.11353A>Gp.Ile3785Val
missense
Exon 16 of 23ENSP00000482968.1Q8TCU4-1
ALMS1
ENST00000484298.5
TSL:1
c.11227A>Gp.Ile3743Val
missense
Exon 15 of 22ENSP00000478155.1A0A087WTU9
ALMS1
ENST00000423048.5
TSL:1
n.*1772A>G
non_coding_transcript_exon
Exon 9 of 9ENSP00000399833.1H7C1D9

Frequencies

GnomAD3 genomes
AF:
0.000440
AC:
67
AN:
152146
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000454
AC:
113
AN:
248648
AF XY:
0.000445
show subpopulations
Gnomad AFR exome
AF:
0.000258
Gnomad AMR exome
AF:
0.000232
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000888
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.000610
AC:
891
AN:
1461262
Hom.:
1
Cov.:
32
AF XY:
0.000615
AC XY:
447
AN XY:
726836
show subpopulations
African (AFR)
AF:
0.000179
AC:
6
AN:
33446
American (AMR)
AF:
0.000224
AC:
10
AN:
44690
Ashkenazi Jewish (ASJ)
AF:
0.0000766
AC:
2
AN:
26110
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.000770
AC:
856
AN:
1111552
Other (OTH)
AF:
0.000282
AC:
17
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
61
121
182
242
303
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.000440
AC:
67
AN:
152146
Hom.:
0
Cov.:
32
AF XY:
0.000377
AC XY:
28
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41436
American (AMR)
AF:
0.0000655
AC:
1
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000882
AC:
60
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
4
8
12
16
20
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:
0.000472
Hom.:
0
Bravo
AF:
0.000491
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00108
AC:
9
ExAC
AF:
0.000422
AC:
51
EpiCase
AF:
0.000818
EpiControl
AF:
0.000534

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)
-
3
-
not provided (3)
-
1
1
not specified (2)
-
-
1
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.021
T
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.0011
T
MetaRNN
Benign
0.078
T
MetaSVM
Benign
-1.2
T
PhyloP100
3.7
PrimateAI
Benign
0.40
T
Sift4G
Pathogenic
0.0
D
Vest4
0.23
MVP
0.41
ClinPred
0.24
T
GERP RS
4.0
Varity_R
0.031
gMVP
0.094
Mutation Taster
=89/11
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: rs201819880; hg19: chr2-73800357; COSMIC: COSV52512533; API