chr7-82758589-T-C

Position:

chr7-82758589-T-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_033026.6(PCLO):c.15415A>G(p.Thr5139Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,611,350 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PCLO
NM_033026.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.75

Variant links:

Genes affected

PCLO (HGNC:13406): (piccolo presynaptic cytomatrix protein) The protein encoded by this gene is part of the presynaptic cytoskeletal matrix, which is involved in establishing active synaptic zones and in synaptic vesicle trafficking. Variations in this gene have been associated with bipolar disorder and major depressive disorder. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

PCLO links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06629351).

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000116 (17/1459362) while in subpopulation AMR AF= 0.000336 (15/44672). AF 95% confidence interval is 0.000207. There are 0 homozygotes in gnomad4_exome. There are 9 alleles in male gnomad4_exome subpopulation. Median coverage is 29. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PCLO	NM_033026.6 linkuse as main transcript	c.15415A>G	p.Thr5139Ala	missense_variant	25/25	ENST00000333891.14	NP_149015.2
PCLO	XM_047420210.1 linkuse as main transcript	c.15598A>G	p.Thr5200Ala	missense_variant	26/26		XP_047276166.1
PCLO	XM_047420211.1 linkuse as main transcript	c.15124A>G	p.Thr5042Ala	missense_variant	26/26		XP_047276167.1
PCLO	XM_017012006.3 linkuse as main transcript	c.8503A>G	p.Thr2835Ala	missense_variant	24/24		XP_016867495.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PCLO	ENST00000333891.14 linkuse as main transcript	c.15415A>G	p.Thr5139Ala	missense_variant	25/25	2	NM_033026.6	ENSP00000334319.8		Q9Y6V0-5

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151872

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000524

AC:

AN:

248150

Hom.:

AF XY:

0.0000594

AC XY:

AN XY:

134684

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000320

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:

0.00000889

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1459362

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

725942

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000336

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151988

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000117

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.0000331

AC:

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

Aug 16, 2022

This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 5139 of the PCLO protein (p.Thr5139Ala). This variant is present in population databases (rs539111932, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with PCLO-related conditions. ClinVar contains an entry for this variant (Variation ID: 1476443). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Benign

0.93

Eigen

Benign

-0.12

Eigen_PC

Benign

0.083

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.69

M_CAP

Benign

0.0042

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.40

PROVEAN

Benign

-1.5

REVEL

Benign

0.077

Sift

Benign

0.24

Sift4G

Benign

0.37

Vest4

0.41

MutPred

0.12

Gain of MoRF binding (P = 0.0986);

MVP

0.22

MPC

0.036

ClinPred

0.081

GERP RS

5.5

Varity_R

0.095

gMVP

0.17

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