Variant chr2-38666223-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138801.3(GALM):c.62A>G(p.Lys21Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

GALM
NM_138801.3 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 3.19

Variant links:

Genes affected

GALM (HGNC:24063): (galactose mutarotase) This gene encodes an enzyme that catalyzes the epimerization of hexose sugars such as glucose and galactose. The encoded protein is expressed in the cytoplasm and has a preference for galactose. The encoded protein may be required for normal galactose metabolism by maintaining the equilibrium of alpha and beta anomers of galactose.[provided by RefSeq, Mar 2009]

GALM links:

GALM (HGNC:):

GALM links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08308524).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GALM	NM_138801.3 linkuse as main transcript	c.62A>G	p.Lys21Arg	missense_variant	1/7	ENST00000272252.10	NP_620156.1	Q96C23A0A384MDW6
GALM	XM_011532540.3 linkuse as main transcript	c.62A>G	p.Lys21Arg	missense_variant	1/6		XP_011530842.1	Q96C23
GALM	XM_047443419.1 linkuse as main transcript	c.62A>G	p.Lys21Arg	missense_variant	1/6		XP_047299375.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
GALM	ENST00000272252.10 linkuse as main transcript	c.62A>G	p.Lys21Arg	missense_variant	1/7	1	NM_138801.3	ENSP00000272252.5	Q96C23
GALM	ENST00000410063.5 linkuse as main transcript	c.62A>G	p.Lys21Arg	missense_variant	1/4	3		ENSP00000386233.1	B8ZZ75
GALM	ENST00000427858.4 linkuse as main transcript	n.143A>G		non_coding_transcript_exon_variant	1/4	4
GALM	ENST00000444351.5 linkuse as main transcript	n.-20A>G		upstream_gene_variant		5		ENSP00000409083.1	H7C320

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

250944

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135670

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:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461754

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727186

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:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000468

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

GALM-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 26, 2024

The GALM c.62A>G variant is predicted to result in the amino acid substitution p.Lys21Arg. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.00088% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.098

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Benign

0.14

T;.

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.73

T;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.083

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.10

N;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.23

N;N

REVEL

Benign

0.052

Sift

Benign

0.70

T;T

Sift4G

Benign

0.48

T;T

Polyphen

0.024

B;.

Vest4

0.16

MutPred

0.47

Loss of ubiquitination at K21 (P = 0.0183);Loss of ubiquitination at K21 (P = 0.0183);

MVP

0.17

MPC

0.053

ClinPred

0.31

GERP RS

4.0

Varity_R

0.14

gMVP

0.62

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over