Genetic Variant UAP1:p.Ile255Val (chr1-162581388-A-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001324116.5(UAP1):c.763A>G(p.Ile255Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

UAP1
NM_001324116.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.39

Publications

0 publications found

Variant links:

Genes affected

UAP1 (HGNC:12457): (UDP-N-acetylglucosamine pyrophosphorylase 1) Enables identical protein binding activity. Predicted to be involved in UDP-N-acetylglucosamine biosynthetic process. Located in cytosol; nucleoplasm; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

UAP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3664686).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UAP1	NM_001324116.5 link	c.763A>G	p.Ile255Val	missense_variant	Exon 5 of 11	ENST00000367925.6	NP_001311045.1	Q16222-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
UAP1	ENST00000367925.6 link	c.763A>G	p.Ile255Val	missense_variant	Exon 5 of 11	5	NM_001324116.5	ENSP00000356902.1	Q16222-1
UAP1	ENST00000367926.9 link	c.763A>G	p.Ile255Val	missense_variant	Exon 5 of 10	1		ENSP00000356903.4	Q16222-2
UAP1	ENST00000474728.1 link	n.-43A>G		upstream_gene_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251396

AF XY:

0.0000147

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461808

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727206

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111960

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 29, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.763A>G (p.I255V) alteration is located in exon 5 (coding exon 4) of the UAP1 gene. This alteration results from a A to G substitution at nucleotide position 763, causing the isoleucine (I) at amino acid position 255 to be replaced by a valine (V). 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

0.17

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.46

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.;T;.

Eigen

Benign

0.14

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.95

D;D;.;D

M_CAP

Benign

0.0057

MetaRNN

Benign

0.37

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

L;L;L;L

PhyloP100

7.4

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.99

N;N;N;N

REVEL

Benign

0.13

Sift

Benign

0.035

D;D;D;T

Sift4G

Benign

0.14

T;T;T;T

Polyphen

0.10

.;B;.;.

Vest4

0.26

MutPred

0.73

Loss of methylation at K258 (P = 0.1041);Loss of methylation at K258 (P = 0.1041);Loss of methylation at K258 (P = 0.1041);Loss of methylation at K258 (P = 0.1041);

MVP

0.043

MPC

0.34

ClinPred

0.57

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.50

gMVP

0.30

Mutation Taster

=80/20

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over