Variant chr3-52096688-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015426.5(POC1A):c.1006C>G(p.Pro336Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000966 in 1,449,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

POC1A
NM_015426.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.48

Variant links:

Genes affected

POC1A (HGNC:24488): (POC1 centriolar protein A) POC1 proteins contain an N-terminal WD40 domain and a C-terminal coiled coil domain and are part of centrosomes. They play an important role in basal body and cilia formation. This gene encodes one of the two POC1 proteins found in humans. Mutations in this gene result in short stature, onychodysplasia, facial dysmorphism, and hypotrichosis (SOFT) syndrome. [provided by RefSeq, Sep 2012]

POC1A links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.057782203).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
POC1A	NM_015426.5 linkuse as main transcript	c.1006C>G	p.Pro336Ala	missense_variant	10/11	ENST00000296484.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
POC1A	ENST00000296484.7 linkuse as main transcript	c.1006C>G	p.Pro336Ala	missense_variant	10/11	1	NM_015426.5	P1	Q8NBT0-1
POC1A	ENST00000394970.6 linkuse as main transcript	c.982-20703C>G		intron_variant		1			Q8NBT0-2
POC1A	ENST00000474012.1 linkuse as main transcript	c.892C>G	p.Pro298Ala	missense_variant	10/11	2			Q8NBT0-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000127

AC:

AN:

237142

Hom.:

AF XY:

0.00000778

AC XY:

AN XY:

128606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000966

AC:

AN:

1449644

Hom.:

Cov.:

AF XY:

0.00000970

AC XY:

AN XY:

721294

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000130

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.03e-7

Gnomad4 OTH exome

AF:

0.0000334

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 09, 2023

This sequence change replaces proline, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 336 of the POC1A protein (p.Pro336Ala). This variant is present in population databases (rs769973716, gnomAD 0.01%). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The alanine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 1427833). This variant has not been reported in the literature in individuals affected with POC1A-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.66

CADD

Benign

0.0050

DANN

Benign

0.43

DEOGEN2

Benign

0.011

T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.022

LIST_S2

Benign

0.57

T;T

M_CAP

Benign

0.0080

MetaRNN

Benign

0.058

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.0

L;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.029

Sift

Benign

0.26

T;T

Sift4G

Benign

0.089

T;T

Polyphen

0.0010

B;.

Vest4

0.16

MutPred

0.33

Gain of glycosylation at S341 (P = 0.0024);.;

MVP

0.048

MPC

0.31

ClinPred

0.029

GERP RS

-6.3

Varity_R

0.013

gMVP

0.21

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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