X-15455904-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001018109.3(PIR):c.424C>T(p.Pro142Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000182 in 1,096,929 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 24)

Exomes 𝑓: 0.0000018 ( 0 hom. 1 hem. )

Consequence

PIR
NM_001018109.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.19

Publications

0 publications found

Variant links:

Genes affected

PIR (HGNC:30048): (pirin) This gene encodes a member of the cupin superfamily. The encoded protein is an Fe(II)-containing nuclear protein expressed in all tissues of the body and concentrated within dot-like subnuclear structures. Interactions with nuclear factor I/CCAAT box transcription factor as well as B cell lymphoma 3-encoded oncoprotein suggest the encoded protein may act as a transcriptional cofactor and be involved in the regulation of DNA transcription and replication. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]

PIR Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics

PIR links:

PIR-FIGF (HGNC:):

PIR-FIGF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32024336).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PIR	NM_001018109.3 link	c.424C>T	p.Pro142Ser	missense_variant	Exon 5 of 10	ENST00000380420.10	NP_001018119.1	O00625A0A024RBX6
PIR	NM_003662.4 link	c.424C>T	p.Pro142Ser	missense_variant	Exon 5 of 10		NP_003653.1	O00625A0A024RBX6
PIR-FIGF	NR_037859.2 link	n.476C>T		non_coding_transcript_exon_variant	Exon 4 of 15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PIR	ENST00000380420.10 link	c.424C>T	p.Pro142Ser	missense_variant	Exon 5 of 10	1	NM_001018109.3	ENSP00000369785.5	O00625
PIR	ENST00000380421.3 link	c.424C>T	p.Pro142Ser	missense_variant	Exon 5 of 10	1		ENSP00000369786.3	O00625
PIR	ENST00000476381.5 link	n.374C>T		non_coding_transcript_exon_variant	Exon 4 of 5	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000545

AC:

AN:

183470

AF XY:

0.0000147

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000182

AC:

AN:

1096929

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

362305

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

26374

American (AMR)

AF:

0.00

AC:

AN:

35206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19381

East Asian (EAS)

AF:

0.00

AC:

AN:

30200

South Asian (SAS)

AF:

0.0000370

AC:

AN:

54114

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40533

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4133

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

840938

Other (OTH)

AF:

0.00

AC:

AN:

46050

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 20, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.424C>T (p.P142S) alteration is located in exon 5 (coding exon 4) of the PIR gene. This alteration results from a C to T substitution at nucleotide position 424, causing the proline (P) at amino acid position 142 to be replaced by a serine (S). 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

0.17

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.056

T;T

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.96

.;D

M_CAP

Pathogenic

0.47

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;L

PhyloP100

5.2

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.22

N;N

REVEL

Benign

0.13

Sift

Benign

0.058

T;T

Sift4G

Benign

0.13

T;T

Polyphen

0.48

P;P

Vest4

0.41

MutPred

0.32

Loss of catalytic residue at P142 (P = 0.0062);Loss of catalytic residue at P142 (P = 0.0062);

MVP

0.73

MPC

0.038

ClinPred

0.19

GERP RS

6.1

Varity_R

0.25

gMVP

0.79

Mutation Taster

=97/3

polymorphism

(source)

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

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X-15455904-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over