NM_001378454.1:c.11266G>A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001378454.1(ALMS1):​c.11266G>A​(p.Gly3756Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00381 in 1,613,642 control chromosomes in the GnomAD database, including 177 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.019 ( 111 hom., cov: 32)
Exomes 𝑓: 0.0022 ( 66 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: 1.92
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0021373332).
BP6
Variant 2-73573143-G-A is Benign according to our data. Variant chr2-73573143-G-A is described in ClinVar as [Benign]. Clinvar id is 220878.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0629 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALMS1NM_001378454.1 linkc.11266G>A p.Gly3756Ser missense_variant Exon 16 of 23 ENST00000613296.6 NP_001365383.1
ALMS1NM_015120.4 linkc.11266G>A p.Gly3756Ser missense_variant Exon 16 of 23 NP_055935.4 Q8TCU4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALMS1ENST00000613296.6 linkc.11266G>A p.Gly3756Ser missense_variant Exon 16 of 23 1 NM_001378454.1 ENSP00000482968.1 Q8TCU4-1

Frequencies

GnomAD3 genomes
AF:
0.0194
AC:
2944
AN:
151910
Hom.:
111
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0651
Gnomad AMI
AF:
0.00658
Gnomad AMR
AF:
0.0106
Gnomad ASJ
AF:
0.00836
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000515
Gnomad OTH
AF:
0.00912
GnomAD3 exomes
AF:
0.00511
AC:
1267
AN:
247850
Hom.:
36
AF XY:
0.00384
AC XY:
516
AN XY:
134484
show subpopulations
Gnomad AFR exome
AF:
0.0643
Gnomad AMR exome
AF:
0.00364
Gnomad ASJ exome
AF:
0.00901
Gnomad EAS exome
AF:
0.000112
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000365
Gnomad OTH exome
AF:
0.00283
GnomAD4 exome
AF:
0.00219
AC:
3196
AN:
1461614
Hom.:
66
Cov.:
32
AF XY:
0.00195
AC XY:
1416
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.0628
Gnomad4 AMR exome
AF:
0.00432
Gnomad4 ASJ exome
AF:
0.00873
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000314
Gnomad4 OTH exome
AF:
0.00490
GnomAD4 genome
AF:
0.0194
AC:
2949
AN:
152028
Hom.:
111
Cov.:
32
AF XY:
0.0191
AC XY:
1423
AN XY:
74310
show subpopulations
Gnomad4 AFR
AF:
0.0650
Gnomad4 AMR
AF:
0.0106
Gnomad4 ASJ
AF:
0.00836
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000529
Gnomad4 OTH
AF:
0.00902
Alfa
AF:
0.00440
Hom.:
17
Bravo
AF:
0.0221
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.0659
AC:
259
ESP6500EA
AF:
0.000844
AC:
7
ExAC
AF:
0.00606
AC:
733
Asia WGS
AF:
0.00375
AC:
13
AN:
3478
EpiCase
AF:
0.000491
EpiControl
AF:
0.000593

ClinVar

Significance: Benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

May 14, 2019
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Dec 22, 2015
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Alstrom syndrome Benign:4
Nov 12, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

Potent mutations in ALMS1 are associated with a rare condition called Alstrom syndrome. It can cause excessive eating, insulin resistance. However, no evidence is found to ascertain the role of rs34927702 in Alstrom syndrome yet. -

Sep 16, 2020
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:3
-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 21, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Gly3755Ser in exon 16 of ALMS1: This variant is not expected to have clinical significance because it has been identified in 6.45% (623/9664) of African chrom osomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org ; dbSNP rs34927702). -

Oct 12, 2016
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Monogenic diabetes Benign:1
Feb 08, 2019
Personalized Diabetes Medicine Program, University of Maryland School of Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

ACMG criteria: BP4 (REVEL 0.064 + 7 predictors; not using PP3/3 predictors), BA1 (6.3% MAF in gnomAD Africans), BS2 (56 homozygotes in gnomAD), BP1 (most ALMS1 pathogenic variants are truncating)=benign -

Cardiovascular phenotype Benign:1
Dec 24, 2018
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.055
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
12
DANN
Benign
0.12
DEOGEN2
Benign
0.0060
T;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.00079
N
LIST_S2
Benign
0.44
T;T;T
MetaRNN
Benign
0.0021
T;T;T
MetaSVM
Benign
-0.96
T
PrimateAI
Benign
0.28
T
Sift4G
Benign
0.58
T;T;T
Vest4
0.028
MVP
0.072
ClinPred
0.0027
T
GERP RS
4.9
Varity_R
0.022
gMVP
0.11

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: rs34927702; hg19: chr2-73800270; COSMIC: COSV99066767; API