2-154242843-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_052917.4(GALNT13):ā€‹c.624T>Gā€‹(p.Asp208Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

GALNT13
NM_052917.4 missense

Scores

8
10
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.214
Variant links:
Genes affected
GALNT13 (HGNC:23242): (polypeptide N-acetylgalactosaminyltransferase 13) The GALNT13 protein is a member of the UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase (GalNAcT; EC 2.4.1.41) family, which initiate O-linked glycosylation of mucins (see MUC3A, MIM 158371) by the initial transfer of N-acetylgalactosamine (GalNAc) with an alpha-linkage to a serine or threonine residue.[supplied by OMIM, Apr 2004]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a binding_site (size 0) in uniprot entity GLT13_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.988

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GALNT13NM_052917.4 linkuse as main transcriptc.624T>G p.Asp208Glu missense_variant 6/13 ENST00000392825.8 NP_443149.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GALNT13ENST00000392825.8 linkuse as main transcriptc.624T>G p.Asp208Glu missense_variant 6/132 NM_052917.4 ENSP00000376570 P1Q8IUC8-1
GALNT13ENST00000409237.5 linkuse as main transcriptc.624T>G p.Asp208Glu missense_variant 4/121 ENSP00000387239 Q8IUC8-3
GALNT13ENST00000431076.5 linkuse as main transcriptc.*444T>G 3_prime_UTR_variant, NMD_transcript_variant 4/91 ENSP00000389447

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251386
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461852
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 14, 2022The c.624T>G (p.D208E) alteration is located in exon 6 (coding exon 4) of the GALNT13 gene. This alteration results from a T to G substitution at nucleotide position 624, causing the aspartic acid (D) at amino acid position 208 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.35
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.62
D;.
Eigen
Uncertain
0.68
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Pathogenic
1.0
D;D
M_CAP
Pathogenic
0.66
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Uncertain
0.74
D
MutationAssessor
Pathogenic
4.3
H;H
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-3.6
D;D
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
1.0
D;.
Vest4
0.97
MutPred
0.92
Loss of sheet (P = 0.302);Loss of sheet (P = 0.302);
MVP
0.83
MPC
1.1
ClinPred
1.0
D
GERP RS
1.9
Varity_R
0.66
gMVP
0.82

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: rs773263895; hg19: chr2-155099356; API