rs1780316

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000478.6(ALPL):​c.330T>C​(p.Ser110Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.941 in 1,613,716 control chromosomes in the GnomAD database, including 714,982 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.93 ( 65398 hom., cov: 34)
Exomes 𝑓: 0.94 ( 649584 hom. )

Consequence

ALPL
NM_000478.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: -0.867
Variant links:
Genes affected
ALPL (HGNC:438): (alkaline phosphatase, biomineralization associated) This gene encodes a member of the alkaline phosphatase family of proteins. There are at least four distinct but related alkaline phosphatases: intestinal, placental, placental-like, and liver/bone/kidney (tissue non-specific). The first three are located together on chromosome 2, while the tissue non-specific form is located on chromosome 1. The product of this gene is a membrane bound glycosylated enzyme that is not expressed in any particular tissue and is, therefore, referred to as the tissue-nonspecific form of the enzyme. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature enzyme. This enzyme may play a role in bone mineralization. Mutations in this gene have been linked to hypophosphatasia, a disorder that is characterized by hypercalcemia and skeletal defects. [provided by RefSeq, Oct 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 1-21563142-T-C is Benign according to our data. Variant chr1-21563142-T-C is described in ClinVar as [Benign]. Clinvar id is 197678.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.867 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.965 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALPLNM_000478.6 linkc.330T>C p.Ser110Ser synonymous_variant Exon 5 of 12 ENST00000374840.8 NP_000469.3 P05186-1A0A024RAB4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALPLENST00000374840.8 linkc.330T>C p.Ser110Ser synonymous_variant Exon 5 of 12 1 NM_000478.6 ENSP00000363973.3 P05186-1

Frequencies

GnomAD3 genomes
AF:
0.926
AC:
140906
AN:
152174
Hom.:
65340
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.867
Gnomad AMI
AF:
0.989
Gnomad AMR
AF:
0.953
Gnomad ASJ
AF:
0.977
Gnomad EAS
AF:
0.987
Gnomad SAS
AF:
0.956
Gnomad FIN
AF:
0.937
Gnomad MID
AF:
0.927
Gnomad NFE
AF:
0.944
Gnomad OTH
AF:
0.932
GnomAD3 exomes
AF:
0.947
AC:
237694
AN:
250932
Hom.:
112687
AF XY:
0.948
AC XY:
128711
AN XY:
135792
show subpopulations
Gnomad AFR exome
AF:
0.865
Gnomad AMR exome
AF:
0.968
Gnomad ASJ exome
AF:
0.978
Gnomad EAS exome
AF:
0.986
Gnomad SAS exome
AF:
0.953
Gnomad FIN exome
AF:
0.938
Gnomad NFE exome
AF:
0.943
Gnomad OTH exome
AF:
0.951
GnomAD4 exome
AF:
0.943
AC:
1377566
AN:
1461424
Hom.:
649584
Cov.:
88
AF XY:
0.943
AC XY:
685845
AN XY:
727046
show subpopulations
Gnomad4 AFR exome
AF:
0.860
Gnomad4 AMR exome
AF:
0.965
Gnomad4 ASJ exome
AF:
0.978
Gnomad4 EAS exome
AF:
0.990
Gnomad4 SAS exome
AF:
0.955
Gnomad4 FIN exome
AF:
0.937
Gnomad4 NFE exome
AF:
0.941
Gnomad4 OTH exome
AF:
0.942
GnomAD4 genome
AF:
0.926
AC:
141023
AN:
152292
Hom.:
65398
Cov.:
34
AF XY:
0.929
AC XY:
69138
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.867
Gnomad4 AMR
AF:
0.953
Gnomad4 ASJ
AF:
0.977
Gnomad4 EAS
AF:
0.988
Gnomad4 SAS
AF:
0.956
Gnomad4 FIN
AF:
0.937
Gnomad4 NFE
AF:
0.944
Gnomad4 OTH
AF:
0.933
Alfa
AF:
0.941
Hom.:
109441
Bravo
AF:
0.921
Asia WGS
AF:
0.970
AC:
3372
AN:
3478
EpiCase
AF:
0.946
EpiControl
AF:
0.941

ClinVar

Significance: Benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jun 05, 2018
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jun 11, 2020
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Ser110Ser variant in ALPL is classified as benign because it is the major allele at this position and is present in 94.5% (266754/282304) of total chromosomes in gnomAD (http://gnomad.broadinstitute.org). ACMG/AMP Criteria applied: BA1. -

Hypophosphatasia Benign:2
Mar 04, 2022
JKU Lab, Dept of Paediatrics, Johannes Kepler University
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

GnomAD frequency 94.49%. It is a Synonymous change. Further details on the ACMG criteria applied could be looked up in the ALPL gene variant database. https://alplmutationdatabase.jku.at/ -

Nov 16, 2019
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

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

- -

Infantile hypophosphatasia Benign:1
Jul 01, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Adult hypophosphatasia Benign:1
Jul 01, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Childhood hypophosphatasia Benign:1
Jul 01, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
1.2
DANN
Benign
0.32

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: rs1780316; hg19: chr1-21889635; COSMIC: COSV66379629; API