Genetic Variant PACS1:p.Pro34del (chr11-66070578-AGCC-A) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP3

The NM_018026.4(PACS1):c.101_103delCGC(p.Pro34del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000448 in 1,340,380 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P34P) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000045 ( 0 hom. )

Consequence

PACS1
NM_018026.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.25

Publications

0 publications found

Variant links:

Genes affected

PACS1 (HGNC:30032): (phosphofurin acidic cluster sorting protein 1) This gene encodes a protein with a putative role in the localization of trans-Golgi network (TGN) membrane proteins. Mouse and rat homologs have been identified and studies of the homologous rat protein indicate a role in directing TGN localization of furin by binding to the protease's phosphorylated cytosolic domain. In addition, the human protein plays a role in HIV-1 Nef-mediated downregulation of cell surface MHC-I molecules to the TGN, thereby enabling HIV-1 to escape immune surveillance. [provided by RefSeq, Jul 2008]

PACS1 Gene-Disease associations (from GenCC):

Schuurs-Hoeijmakers syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet

PACS1 links:

ENSG00000255038 (HGNC:):

ENSG00000255038 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP3

Nonframeshift variant in repetitive region in NM_018026.4

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PACS1	NM_018026.4 link	c.101_103delCGC	p.Pro34del	disruptive_inframe_deletion	Exon 1 of 24	ENST00000320580.9	NP_060496.2	Q6VY07-1A0A024R5H6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PACS1	ENST00000320580.9 link	c.101_103delCGC	p.Pro34del	disruptive_inframe_deletion	Exon 1 of 24	1	NM_018026.4	ENSP00000316454.4		Q6VY07-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000428

AC:

AN:

93462

AF XY:

0.0000376

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000518

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000219

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000289

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000448

AC:

AN:

1340380

Hom.:

AF XY:

0.00000605

AC XY:

AN XY:

661460

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:

27182

American (AMR)

AF:

0.0000324

AC:

AN:

30876

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23494

East Asian (EAS)

AF:

0.0000337

AC:

AN:

29676

South Asian (SAS)

AF:

0.0000133

AC:

AN:

75032

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33950

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4112

European-Non Finnish (NFE)

AF:

0.00000189

AC:

AN:

1060242

Other (OTH)

AF:

0.0000179

AC:

AN:

55816

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.3

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over