Genetic Variant PACS1:p.Pro45Pro (chr11-66070621-G-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_018026.4(PACS1):c.135G>A(p.Pro45Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000719 in 1,390,274 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P45P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

PACS1
NM_018026.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.07

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: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P, Orphanet, ClinGen

PACS1 links:

ENSG00000255038 (HGNC:):

ENSG00000255038 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.6).

BP7

Synonymous conserved (PhyloP=1.07 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018026.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PACS1	NM_018026.4	MANE Select	c.135G>A	p.Pro45Pro	synonymous	Exon 1 of 24	NP_060496.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PACS1	ENST00000320580.9	TSL:1 MANE Select	c.135G>A	p.Pro45Pro	synonymous	Exon 1 of 24	ENSP00000316454.4	Q6VY07-1
PACS1	ENST00000527224.1	TSL:2	n.259G>A		non_coding_transcript_exon	Exon 1 of 7
ENSG00000255038	ENST00000830157.1		n.29+409C>T		intron	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.19e-7

AC:

AN:

1390274

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690360

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:

28770

American (AMR)

AF:

0.00

AC:

AN:

38858

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24514

East Asian (EAS)

AF:

0.00

AC:

AN:

33254

South Asian (SAS)

AF:

0.00

AC:

AN:

79828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36922

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5140

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1085264

Other (OTH)

AF:

0.0000173

AC:

AN:

57724

⚠️ 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Benign

0.91

PhyloP100

1.1

PromoterAI

0.012

Neutral

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over