NM_003355.3:c.79G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_003355.3(UCP2):​c.79G>A​(p.Ala27Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000136 in 1,614,150 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A27V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 2 hom. )

Consequence

UCP2
NM_003355.3 missense

Scores

10
6
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.10

Publications

4 publications found
Variant links:
Genes affected
UCP2 (HGNC:12518): (uncoupling protein 2) Mitochondrial uncoupling proteins (UCP) are members of the larger family of mitochondrial anion carrier proteins (MACP). UCPs separate oxidative phosphorylation from ATP synthesis with energy dissipated as heat, also referred to as the mitochondrial proton leak. UCPs facilitate the transfer of anions from the inner to the outer mitochondrial membrane and the return transfer of protons from the outer to the inner mitochondrial membrane. They also reduce the mitochondrial membrane potential in mammalian cells. Tissue specificity occurs for the different UCPs and the exact methods of how UCPs transfer H+/OH- are not known. UCPs contain the three homologous protein domains of MACPs. This gene is expressed in many tissues, with the greatest expression in skeletal muscle. It is thought to play a role in nonshivering thermogenesis, obesity and diabetes. Chromosomal order is 5'-UCP3-UCP2-3'. [provided by RefSeq, Jul 2008]
UCP2 Gene-Disease associations (from GenCC):
  • hyperinsulinism due to UCP2 deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.799
BS2
High AC in GnomAd4 at 21 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003355.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UCP2
NM_003355.3
MANE Select
c.79G>Ap.Ala27Thr
missense
Exon 3 of 8NP_003346.2
UCP2
NM_001381943.1
c.79G>Ap.Ala27Thr
missense
Exon 4 of 9NP_001368872.1P55851
UCP2
NM_001381944.1
c.79G>Ap.Ala27Thr
missense
Exon 3 of 8NP_001368873.1P55851

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UCP2
ENST00000663595.2
MANE Select
c.79G>Ap.Ala27Thr
missense
Exon 3 of 8ENSP00000499695.1P55851
UCP2
ENST00000310473.11
TSL:1
c.79G>Ap.Ala27Thr
missense
Exon 4 of 9ENSP00000312029.3
UCP2
ENST00000880151.1
c.79G>Ap.Ala27Thr
missense
Exon 3 of 8ENSP00000550210.1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152144
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000622
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000254
AC:
64
AN:
251484
AF XY:
0.000309
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00119
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000601
Gnomad NFE exome
AF:
0.000105
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000136
AC:
199
AN:
1461890
Hom.:
2
Cov.:
32
AF XY:
0.000173
AC XY:
126
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00149
AC:
39
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.000707
AC:
61
AN:
86258
European-Finnish (FIN)
AF:
0.000374
AC:
20
AN:
53420
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000396
AC:
44
AN:
1112008
Other (OTH)
AF:
0.000381
AC:
23
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
15
29
44
58
73
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152260
Hom.:
1
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41530
American (AMR)
AF:
0.000196
AC:
3
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.000622
AC:
3
AN:
4822
European-Finnish (FIN)
AF:
0.000189
AC:
2
AN:
10604
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.528
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000197
Hom.:
0
Bravo
AF:
0.000147
ExAC
AF:
0.000247
AC:
30
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000296

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
BODY MASS INDEX QUANTITATIVE TRAIT LOCUS 4 (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
T
Eigen
Pathogenic
0.89
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
1.0
D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.80
D
MetaSVM
Uncertain
0.46
D
MutationAssessor
Uncertain
2.6
M
PhyloP100
6.1
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.4
D
REVEL
Pathogenic
0.70
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.62
MutPred
0.84
Loss of stability (P = 0.0548)
MVP
0.95
MPC
0.36
ClinPred
0.34
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.89
gMVP
0.87
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs201315561; hg19: chr11-73689345; COSMIC: COSV60104333; COSMIC: COSV60104333; API