Variant chr2-63885863-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006759.4(UGP2):c.850A>G(p.Asn284Asp) variant causes a missense change. The variant allele was found at a frequency of 0.000062 in 1,596,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

UGP2
NM_006759.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.39

Variant links:

Genes affected

UGP2 (HGNC:12527): (UDP-glucose pyrophosphorylase 2) The enzyme encoded by this gene is an important intermediary in mammalian carbohydrate interconversions. It transfers a glucose moiety from glucose-1-phosphate to MgUTP and forms UDP-glucose and MgPPi. In liver and muscle tissue, UDP-glucose is a direct precursor of glycogen; in lactating mammary gland it is converted to UDP-galactose which is then converted to lactose. The eukaryotic enzyme has no significant sequence similarity to the prokaryotic enzyme. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

UGP2 links:

UGP2 (HGNC:):

UGP2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.024383992).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UGP2	NM_006759.4 linkuse as main transcript	c.850A>G	p.Asn284Asp	missense_variant	6/10	ENST00000337130.10	NP_006750.3	Q16851-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UGP2	ENST00000337130.10 linkuse as main transcript	c.850A>G	p.Asn284Asp	missense_variant	6/10	1	NM_006759.4	ENSP00000338703.5		Q16851-1

Frequencies

GnomAD3 genomes

AF:

0.000315

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00109

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000955

GnomAD3 exomes

AF:

0.0000940

AC:

AN:

234166

Hom.:

AF XY:

0.0000630

AC XY:

AN XY:

126948

show subpopulations

Gnomad AFR exome

AF:

0.00122

Gnomad AMR exome

AF:

0.0000974

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000353

AC:

AN:

1444186

Hom.:

Cov.:

AF XY:

0.0000306

AC XY:

AN XY:

717984

show subpopulations

Gnomad4 AFR exome

AF:

0.00141

Gnomad4 AMR exome

AF:

0.0000487

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:

0.00

Gnomad4 OTH exome

AF:

0.0000504

GnomAD4 genome

AF:

0.000315

AC:

AN:

152368

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74518

show subpopulations

Gnomad4 AFR

AF:

0.00108

Gnomad4 AMR

AF:

0.0000653

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:

0.000945

Alfa

AF:

0.0000691

Hom.:

Bravo

AF:

0.000397

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 06, 2021

The c.850A>G (p.N284D) alteration is located in exon 6 (coding exon 6) of the UGP2 gene. This alteration results from a A to G substitution at nucleotide position 850, causing the asparagine (N) at amino acid position 284 to be replaced by an aspartic acid (D). 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

Benign

0.048

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.72

CADD

Benign

DANN

Benign

0.81

DEOGEN2

Benign

0.093

.;.;T;.;.

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.16

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.93

.;D;D;D;D

M_CAP

Benign

0.0026

MetaRNN

Benign

0.024

T;T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

-2.1

.;.;N;.;.

PrimateAI

Uncertain

0.77

PROVEAN

Benign

3.8

N;N;N;N;.

REVEL

Benign

0.084

Sift

Benign

1.0

T;T;T;T;.

Sift4G

Benign

1.0

T;T;T;T;T

Polyphen

0.0

.;.;B;B;.

Vest4

0.21

MVP

0.13

MPC

0.58

ClinPred

0.049

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.19

gMVP

0.84

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