rs3813227

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001378454.1(ALMS1):​c.1174C>A​(p.Arg392Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000423 in 1,607,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict 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. R392C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 0.0890

Publications

40 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 -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.021847516).
BP6
Variant 2-73424839-C-A is Benign according to our data. Variant chr2-73424839-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 529379.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000237 (36/151968) while in subpopulation AFR AF = 0.000846 (35/41378). AF 95% confidence interval is 0.000624. There are 0 homozygotes in GnomAd4. There are 16 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.1174C>Ap.Arg392Ser
missense
Exon 5 of 23NP_001365383.1Q8TCU4-1
ALMS1
NM_015120.4
c.1174C>Ap.Arg392Ser
missense
Exon 5 of 23NP_055935.4Q8TCU4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.1174C>Ap.Arg392Ser
missense
Exon 5 of 23ENSP00000482968.1Q8TCU4-1
ALMS1
ENST00000484298.5
TSL:1
c.1048C>Ap.Arg350Ser
missense
Exon 4 of 22ENSP00000478155.1A0A087WTU9
ALMS1
ENST00000684548.1
c.724C>Ap.Arg242Ser
missense
Exon 3 of 21ENSP00000507421.1A0A804HJA5

Frequencies

GnomAD3 genomes
AF:
0.000237
AC:
36
AN:
151968
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000846
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000529
AC:
13
AN:
245640
AF XY:
0.0000451
show subpopulations
Gnomad AFR exome
AF:
0.000648
Gnomad AMR exome
AF:
0.0000881
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000220
AC:
32
AN:
1455194
Hom.:
0
Cov.:
33
AF XY:
0.0000235
AC XY:
17
AN XY:
722816
show subpopulations
African (AFR)
AF:
0.000722
AC:
24
AN:
33264
American (AMR)
AF:
0.0000904
AC:
4
AN:
44272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25916
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39570
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85492
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53188
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5724
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1107696
Other (OTH)
AF:
0.0000666
AC:
4
AN:
60072
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000237
AC:
36
AN:
151968
Hom.:
0
Cov.:
32
AF XY:
0.000216
AC XY:
16
AN XY:
74210
show subpopulations
African (AFR)
AF:
0.000846
AC:
35
AN:
41378
American (AMR)
AF:
0.0000655
AC:
1
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10554
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67982
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.00000143
Hom.:
34555
ExAC
AF:
0.0000497
AC:
6

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
3.3
DANN
Benign
0.29
DEOGEN2
Benign
0.0055
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.031
N
LIST_S2
Benign
0.24
T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.022
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
-0.34
N
PhyloP100
0.089
PrimateAI
Benign
0.25
T
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.19
MVP
0.14
ClinPred
0.0093
T
GERP RS
0.18
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.087
gMVP
0.021
Mutation Taster
=99/1
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: rs3813227; hg19: chr2-73651967; API