chr19-46838627-C-A

Position:

• chr19-46838627-C-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_004069.6(AP2S1):​c.328-79G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.002 in 1,575,292 control chromosomes in the GnomAD database, including 60 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.010 (26 hom., cov: 31)
  • Exomes 𝑓: 0.0011 (34 hom.)
• Consequence: AP2S1 NM_004069.6 intron
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.310

Genes affected

AP2S1 (HGNC:565): (adaptor related protein complex 2 subunit sigma 1) One of two major clathrin-associated adaptor complexes, AP-2, is a heterotetramer which is associated with the plasma membrane. This complex is composed of two large chains, a medium chain, and a small chain. This gene encodes the small chain of this complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BP6: Variant 19-46838627-C-A is Benign according to our data. Variant chr19-46838627-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1198579.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0105 (1598/152270) while in subpopulation AFR AF= 0.0368 (1531/41560). AF 95% confidence interval is 0.0353. There are 26 homozygotes in gnomad4. There are 742 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1598 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AP2S1	NM_004069.6	c.328-79G>T		intron_variant		ENST00000263270.11	NP_004060.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AP2S1	ENST00000263270.11	c.328-79G>T		intron_variant		1	NM_004069.6	ENSP00000263270	P4

Frequencies

GnomAD3 genomes AF: 0.0104 AC: 1588 AN: 152152 Hom.: 26 Cov.: 31

Gnomad AFR AF: 0.0367

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00328

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00526

GnomAD4 exome AF: 0.00109 AC: 1556 AN: 1423022 Hom.: 34 Cov.: 26 AF XY: 0.000897 AC XY: 636 AN XY: 709044

Gnomad4 AFR exome AF: 0.0384

Gnomad4 AMR exome AF: 0.00211

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000704

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000390

Gnomad4 OTH exome AF: 0.00261

GnomAD4 genome AF: 0.0105 AC: 1598 AN: 152270 Hom.: 26 Cov.: 31 AF XY: 0.00997 AC XY: 742 AN XY: 74442

Gnomad4 AFR AF: 0.0368

Gnomad4 AMR AF: 0.00327

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000735

Gnomad4 OTH AF: 0.00521

Alfa AF: 0.00876 Hom.: 2

Bravo AF: 0.0115

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 03, 2020	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	1.5
DANN	Benign	0.82

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

LitVar

Other links and lift over

dbSNP: rs147698652; hg19: chr19-47341884;