2-25161572-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000939.4(POMC):​c.313G>A​(p.Glu105Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000109 in 1,555,240 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E105G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

POMC
NM_000939.4 missense

Scores

8
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.67
Variant links:
Genes affected
POMC (HGNC:9201): (proopiomelanocortin) This gene encodes a preproprotein that undergoes extensive, tissue-specific, post-translational processing via cleavage by subtilisin-like enzymes known as prohormone convertases. There are eight potential cleavage sites within the preproprotein and, depending on tissue type and the available convertases, processing may yield as many as ten biologically active peptides involved in diverse cellular functions. The encoded protein is synthesized mainly in corticotroph cells of the anterior pituitary where four cleavage sites are used; adrenocorticotrophin, essential for normal steroidogenesis and the maintenance of normal adrenal weight, and lipotropin beta are the major end products. In other tissues, including the hypothalamus, placenta, and epithelium, all cleavage sites may be used, giving rise to peptides with roles in pain and energy homeostasis, melanocyte stimulation, and immune modulation. These include several distinct melanotropins, lipotropins, and endorphins that are contained within the adrenocorticotrophin and beta-lipotropin peptides. The antimicrobial melanotropin alpha peptide exhibits antibacterial and antifungal activity. Mutations in this gene have been associated with early onset obesity, adrenal insufficiency, and red hair pigmentation. Alternatively spliced transcript variants encoding the same protein have been described. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.41387686).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POMCNM_000939.4 linkuse as main transcriptc.313G>A p.Glu105Lys missense_variant 3/3 ENST00000395826.7
POMCNM_001035256.3 linkuse as main transcriptc.313G>A p.Glu105Lys missense_variant 4/4
POMCNM_001319204.2 linkuse as main transcriptc.313G>A p.Glu105Lys missense_variant 4/4
POMCNM_001319205.2 linkuse as main transcriptc.313G>A p.Glu105Lys missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POMCENST00000395826.7 linkuse as main transcriptc.313G>A p.Glu105Lys missense_variant 3/32 NM_000939.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00000661
AC:
1
AN:
151354
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000245
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
AF:
0.0000114
AC:
16
AN:
1403886
Hom.:
0
Cov.:
32
AF XY:
0.0000130
AC XY:
9
AN XY:
693326
show subpopulations
Gnomad4 AFR exome
AF:
0.0000326
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:
0.00
Gnomad4 NFE exome
AF:
0.0000120
Gnomad4 OTH exome
AF:
0.0000345
GnomAD4 genome
AF:
0.00000661
AC:
1
AN:
151354
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
73936
show subpopulations
Gnomad4 AFR
AF:
0.0000245
Gnomad4 AMR
AF:
0.00
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:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.010
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;D;D;D;T
Eigen
Benign
0.060
Eigen_PC
Benign
-0.0096
FATHMM_MKL
Benign
0.54
D
LIST_S2
Benign
0.76
T;.;.;.;T
M_CAP
Uncertain
0.089
D
MetaRNN
Benign
0.41
T;T;T;T;T
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Uncertain
2.0
M;M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-2.4
N;N;N;N;N
REVEL
Uncertain
0.39
Sift
Benign
0.030
D;D;D;D;D
Sift4G
Uncertain
0.038
D;D;D;D;.
Polyphen
0.96
D;D;D;D;.
Vest4
0.27
MutPred
0.36
Gain of ubiquitination at E105 (P = 0.001);Gain of ubiquitination at E105 (P = 0.001);Gain of ubiquitination at E105 (P = 0.001);Gain of ubiquitination at E105 (P = 0.001);Gain of ubiquitination at E105 (P = 0.001);
MVP
0.89
MPC
0.54
ClinPred
0.93
D
GERP RS
2.9
Varity_R
0.15
gMVP
0.38

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: rs121918111; hg19: chr2-25384441; API