Genetic Variant POM121:p.Ser378Cys (chr7-72929969-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001387691.1(POM121):c.1133C>G(p.Ser378Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,612,168 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S378F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

POM121
NM_001387691.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.98

Variant links:

Genes affected

POM121 (HGNC:19702): (POM121 transmembrane nucleoporin) This gene encodes a transmembrane protein that localizes to the inner nuclear membrane and forms a core component of the nuclear pore complex, which mediates transport to and from the nucleus. The encoded protein may anchor this complex to the nuclear envelope. There are multiple related genes and pseudogenes for this gene on chromosomes 5, 7, 15, and 22. Alternatively spliced transcript variants encoding different isoforms have been observed. [provided by RefSeq, Jul 2013]

POM121 links:

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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=0.19758713).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POM121	NM_001387691.1 link	c.1133C>G	p.Ser378Cys	missense_variant	Exon 5 of 13	ENST00000434423.5	NP_001374620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
POM121	ENST00000434423.5 link	c.1133C>G	p.Ser378Cys	missense_variant	Exon 5 of 13	5	NM_001387691.1	ENSP00000405562.2	Q96HA1-1
POM121	ENST00000395270.5 link	c.338C>G	p.Ser113Cys	missense_variant	Exon 8 of 16	1		ENSP00000378687.1	Q96HA1-3
POM121	ENST00000627934.3 link	c.338C>G	p.Ser113Cys	missense_variant	Exon 7 of 15	5		ENSP00000486504.1	Q96HA1-2

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

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

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

245576

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133370

show subpopulations

Gnomad AFR exome

AF:

0.000192

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:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1459958

Hom.:

Cov.:

AF XY:

0.00000689

AC XY:

AN XY:

726136

show subpopulations

Gnomad4 AFR exome

AF:

0.000210

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000192

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000604

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 11, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.338C>G (p.S113C) alteration is located in exon 7 (coding exon 4) of the POM121 gene. This alteration results from a C to G substitution at nucleotide position 338, causing the serine (S) at amino acid position 113 to be replaced by a cysteine (C). 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

0.12

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.52

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

.;.;.;.;T

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.84

.;T;T;.;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.20

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.7

.;.;.;.;M

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-3.4

D;.;D;D;D

REVEL

Benign

0.084

Sift

Uncertain

0.014

D;.;D;D;D

Sift4G

Uncertain

0.0030

D;D;D;D;D

Polyphen

1.0

.;.;.;.;D

Vest4

0.49

MutPred

0.23

.;.;.;.;Loss of phosphorylation at S378 (P = 0.0266);

MVP

0.085

ClinPred

0.88

GERP RS

4.1

Varity_R

0.32

gMVP

0.30

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over