2-74527313-C-T

Variant summary

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

The NM_181575.5(AUP1):​c.1012G>A​(p.Val338Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000191 in 1,614,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

AUP1
NM_181575.5 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.10
Variant links:
Genes affected
AUP1 (HGNC:891): (AUP1 lipid droplet regulating VLDL assembly factor) The protein encoded this gene is involved in several pathways including quality control of misfolded proteins in the endoplasmic reticulum and lipid droplet accumulation. Lipid droplets are organelles in the cytoplasm that store neutral lipids such as cholesterol esters and trigylycerides to prevent the overabundance of free cholesterol and fatty acids in cells, but also to act as storage for other metabolic processes, such as membrane biogenesis. Reduced expression of this gene results in reduced lipid droplet clustering, a function that is dependent on ubiquitination of the protein. This protein contains multiple domains including a hydrophobic N-terminal domain, an acetyltranferase domain, a ubiquitin-binding CUE domain, and a UBE2B2-binding domain (G2BR). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]

Genome browser will be placed here

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=0.15369159).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AUP1NM_181575.5 linkuse as main transcriptc.1012G>A p.Val338Ile missense_variant 10/12 ENST00000377526.4
AUP1NR_126510.2 linkuse as main transcriptn.1089G>A non_coding_transcript_exon_variant 10/12
AUP1NR_126511.2 linkuse as main transcriptn.1285G>A non_coding_transcript_exon_variant 9/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AUP1ENST00000377526.4 linkuse as main transcriptc.1012G>A p.Val338Ile missense_variant 10/121 NM_181575.5 P1Q9Y679-2

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152132
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000641
AC:
16
AN:
249482
Hom.:
0
AF XY:
0.0000813
AC XY:
11
AN XY:
135362
show subpopulations
Gnomad AFR exome
AF:
0.000129
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:
0.0000928
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000200
AC:
293
AN:
1461868
Hom.:
0
Cov.:
32
AF XY:
0.000190
AC XY:
138
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.000112
Gnomad4 NFE exome
AF:
0.000250
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000986
AC:
15
AN:
152132
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000213
Hom.:
0
Bravo
AF:
0.000125
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000362
AC:
3
ExAC
AF:
0.0000745
AC:
9
EpiCase
AF:
0.000218
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 23, 2023The c.1012G>A (p.V338I) alteration is located in exon 10 (coding exon 10) of the AUP1 gene. This alteration results from a G to A substitution at nucleotide position 1012, causing the valine (V) at amino acid position 338 to be replaced by an isoleucine (I). 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
0.10
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.42
CADD
Uncertain
24
DANN
Uncertain
0.99
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.96
T
MutationTaster
Benign
0.91
D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.46
N
REVEL
Benign
0.030
Sift
Benign
0.035
D
Sift4G
Uncertain
0.059
T
Vest4
0.30
MVP
0.45
MPC
0.87
ClinPred
0.079
T
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.060
gMVP
0.18

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.

Other links and lift over

dbSNP: rs200160127; hg19: chr2-74754440; API