rs377282102

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_001378454.1(ALMS1):​c.2665A>G​(p.Ile889Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000102 in 1,613,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 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. I889F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000099 ( 0 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: -4.94

Publications

0 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: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.012864858).
BP6
Variant 2-73449192-A-G is Benign according to our data. Variant chr2-73449192-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 459861.

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.2665A>Gp.Ile889Val
missense
Exon 8 of 23NP_001365383.1Q8TCU4-1
ALMS1
NM_015120.4
c.2665A>Gp.Ile889Val
missense
Exon 8 of 23NP_055935.4Q8TCU4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.2665A>Gp.Ile889Val
missense
Exon 8 of 23ENSP00000482968.1Q8TCU4-1
ALMS1
ENST00000484298.5
TSL:1
c.2539A>Gp.Ile847Val
missense
Exon 7 of 22ENSP00000478155.1A0A087WTU9
ALMS1
ENST00000684548.1
c.2284A>Gp.Ile762Val
missense
Exon 6 of 21ENSP00000507421.1A0A804HJA5

Frequencies

GnomAD3 genomes
AF:
0.000132
AC:
20
AN:
151962
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000388
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000177
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000193
AC:
48
AN:
249032
AF XY:
0.000170
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.000464
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000167
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000142
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000985
AC:
144
AN:
1461826
Hom.:
0
Cov.:
40
AF XY:
0.0000976
AC XY:
71
AN XY:
727224
show subpopulations
African (AFR)
AF:
0.000209
AC:
7
AN:
33468
American (AMR)
AF:
0.000470
AC:
21
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.000101
AC:
4
AN:
39698
South Asian (SAS)
AF:
0.000278
AC:
24
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53418
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000639
AC:
71
AN:
1111980
Other (OTH)
AF:
0.000248
AC:
15
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
10
19
29
38
48
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:
0.000132
AC:
20
AN:
152080
Hom.:
0
Cov.:
33
AF XY:
0.0000941
AC XY:
7
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41480
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000389
AC:
2
AN:
5142
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000177
AC:
12
AN:
67974
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.548
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000145
Hom.:
0
Bravo
AF:
0.000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000122
AC:
1
ExAC
AF:
0.000257
AC:
31
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000119

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.0020
DANN
Benign
0.16
DEOGEN2
Benign
0.0062
T
Eigen
Benign
-2.2
Eigen_PC
Benign
-2.3
FATHMM_MKL
Benign
0.00043
N
LIST_S2
Benign
0.054
T
M_CAP
Benign
0.0027
T
MetaRNN
Benign
0.013
T
MetaSVM
Benign
-1.0
T
PhyloP100
-4.9
PrimateAI
Benign
0.24
T
Sift4G
Benign
1.0
T
Vest4
0.025
MVP
0.11
ClinPred
0.011
T
GERP RS
-7.3
PromoterAI
0.015
Neutral
Varity_R
0.011
gMVP
0.027
Mutation Taster
=100/0
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: rs377282102; hg19: chr2-73676319; COSMIC: COSV52525395; COSMIC: COSV52525395; API