9-34647950-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000155.4(GALT):ā€‹c.496C>Gā€‹(p.Pro166Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

GALT
NM_000155.4 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.25
Variant links:
Genes affected
GALT (HGNC:4135): (galactose-1-phosphate uridylyltransferase) Galactose-1-phosphate uridyl transferase (GALT) catalyzes the second step of the Leloir pathway of galactose metabolism, namely the conversion of UDP-glucose + galactose-1-phosphate to glucose-1-phosphate + UDP-galactose. The absence of this enzyme results in classic galactosemia in humans and can be fatal in the newborn period if lactose is not removed from the diet. The pathophysiology of galactosemia has not been clearly defined. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GALTNM_000155.4 linkuse as main transcriptc.496C>G p.Pro166Ala missense_variant 5/11 ENST00000378842.8 NP_000146.2
GALTNM_001258332.2 linkuse as main transcriptc.169C>G p.Pro57Ala missense_variant 3/9 NP_001245261.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GALTENST00000378842.8 linkuse as main transcriptc.496C>G p.Pro166Ala missense_variant 5/111 NM_000155.4 ENSP00000368119 P1P07902-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461886
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

Deficiency of UDPglucose-hexose-1-phosphate uridylyltransferase Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylAug 24, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.40
CADD
Benign
20
DANN
Benign
0.97
DEOGEN2
Uncertain
0.71
.;D
Eigen
Benign
-0.16
Eigen_PC
Benign
0.072
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Benign
0.058
D
MetaRNN
Uncertain
0.64
D;D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Benign
1.3
.;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-2.2
N;N
REVEL
Uncertain
0.54
Sift
Benign
0.27
T;T
Sift4G
Benign
0.61
T;T
Polyphen
0.0
.;B
Vest4
0.71
MutPred
0.37
.;Gain of catalytic residue at P166 (P = 0.0262);
MVP
0.95
MPC
0.75
ClinPred
0.54
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs367543257; hg19: chr9-34647947; API