Genetic Variant UAP1:p.Leu95Phe (chr1-162576779-C-T) – 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.283C>T(p.Leu95Phe) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,142 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Consequence

UAP1
NM_001324116.5 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.58

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:

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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=0.32198185).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UAP1	NM_001324116.5 link	c.283C>T	p.Leu95Phe	missense_variant, splice_region_variant	Exon 3 of 11	ENST00000367925.6	NP_001311045.1	Q16222-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UAP1	ENST00000367925.6 link	c.283C>T	p.Leu95Phe	missense_variant, splice_region_variant	Exon 3 of 11	5	NM_001324116.5	ENSP00000356902.1		Q16222-1
UAP1	ENST00000367926.9 link	c.283C>T	p.Leu95Phe	missense_variant, splice_region_variant	Exon 3 of 10	1		ENSP00000356903.4		Q16222-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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

Cov.:

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74316

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 13, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.283C>T (p.L95F) alteration is located in exon 3 (coding exon 2) of the UAP1 gene. This alteration results from a C to T substitution at nucleotide position 283, causing the leucine (L) at amino acid position 95 to be replaced by a phenylalanine (F). 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

0.097

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.36

T;.;T;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.88

D;D;.;D

M_CAP

Benign

0.0093

MetaRNN

Benign

0.32

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.0

M;M;M;M

PhyloP100

1.6

PrimateAI

Uncertain

0.63

PROVEAN

Benign

-2.0

N;N;N;N

REVEL

Benign

0.11

Sift

Benign

0.19

T;T;T;T

Sift4G

Benign

0.11

T;T;T;T

Polyphen

0.62

.;P;.;.

Vest4

0.42

MutPred

0.69

Loss of stability (P = 0.0856);Loss of stability (P = 0.0856);Loss of stability (P = 0.0856);Loss of stability (P = 0.0856);

MVP

0.068

MPC

0.57

ClinPred

0.86

GERP RS

5.1

Varity_R

0.37

gMVP

0.56

Mutation Taster

=25/75

disease causing

(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

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1-162576779-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over