rs7187889

Variant summary

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

The NM_000512.5(GALNS):​c.599C>T​(p.Thr200Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00787 in 1,613,198 control chromosomes in the GnomAD database, including 842 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.041 ( 447 hom., cov: 33)
Exomes 𝑓: 0.0044 ( 395 hom. )

Consequence

GALNS
NM_000512.5 missense

Scores

2
9
7

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 9.48
Variant links:
Genes affected
GALNS (HGNC:4122): (galactosamine (N-acetyl)-6-sulfatase) This gene encodes N-acetylgalactosamine-6-sulfatase which is a lysosomal exohydrolase required for the degradation of the glycosaminoglycans, keratan sulfate, and chondroitin 6-sulfate. Sequence alterations including point, missense and nonsense mutations, as well as those that affect splicing, result in a deficiency of this enzyme. Deficiencies of this enzyme lead to Morquio A syndrome, a lysosomal storage disorder. [provided by RefSeq, Jul 2008]

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=0.0019369423).
BP6
Variant 16-88836235-G-A is Benign according to our data. Variant chr16-88836235-G-A is described in ClinVar as [Benign]. Clinvar id is 198087.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-88836235-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.141 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GALNSNM_000512.5 linkc.599C>T p.Thr200Met missense_variant Exon 6 of 14 ENST00000268695.10 NP_000503.1 P34059Q96I49

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GALNSENST00000268695.10 linkc.599C>T p.Thr200Met missense_variant Exon 6 of 14 1 NM_000512.5 ENSP00000268695.5 P34059

Frequencies

GnomAD3 genomes
AF:
0.0413
AC:
6288
AN:
152196
Hom.:
445
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.144
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0158
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000558
Gnomad OTH
AF:
0.0272
GnomAD3 exomes
AF:
0.0109
AC:
2720
AN:
250494
Hom.:
157
AF XY:
0.00799
AC XY:
1082
AN XY:
135494
show subpopulations
Gnomad AFR exome
AF:
0.147
Gnomad AMR exome
AF:
0.00738
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000164
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000450
Gnomad OTH exome
AF:
0.00604
GnomAD4 exome
AF:
0.00437
AC:
6388
AN:
1460884
Hom.:
395
Cov.:
32
AF XY:
0.00382
AC XY:
2773
AN XY:
726774
show subpopulations
Gnomad4 AFR exome
AF:
0.152
Gnomad4 AMR exome
AF:
0.00846
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000278
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000293
Gnomad4 OTH exome
AF:
0.00909
GnomAD4 genome
AF:
0.0414
AC:
6307
AN:
152314
Hom.:
447
Cov.:
33
AF XY:
0.0396
AC XY:
2946
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.144
Gnomad4 AMR
AF:
0.0158
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000544
Gnomad4 OTH
AF:
0.0269
Alfa
AF:
0.0113
Hom.:
117
Bravo
AF:
0.0478
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.146
AC:
643
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0134
AC:
1628
Asia WGS
AF:
0.00520
AC:
18
AN:
3478
EpiCase
AF:
0.000491
EpiControl
AF:
0.000593

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jul 25, 2014
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

- -

Oct 24, 2017
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. -

Mucopolysaccharidosis, MPS-IV-A Benign:3
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 07, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

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

- -

May 17, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.82
D;.
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D
MetaRNN
Benign
0.0019
T;T
MetaSVM
Benign
-0.64
T
MutationAssessor
Benign
1.3
L;.
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-2.8
D;D
REVEL
Uncertain
0.46
Sift
Uncertain
0.027
D;D
Sift4G
Benign
0.089
T;.
Polyphen
0.93
P;.
Vest4
0.26
MPC
0.23
ClinPred
0.053
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.47
gMVP
0.75

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: rs7187889; hg19: chr16-88902643; API