20-3823937-G-T

Variant names:

• chr20-3823937-G-T
• rs768409747
• NM_018347.3:c.243G>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_018347.3(AP5S1):​c.243G>T​(p.Pro81Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,942 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. P81P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: AP5S1 NM_018347.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.145
• Publications: 0 publications found

Genes affected

AP5S1 (HGNC:15875): (adaptor related protein complex 5 subunit sigma 1) Involved in double-strand break repair via homologous recombination and endosomal transport. Located in several cellular components, including late endosome; lysosome; and nucleoplasm. Part of AP-type membrane coat adaptor complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=-0.75).
• BP7: Synonymous conserved (PhyloP=-0.145 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018347.3. 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
	AP5S1	NM_018347.3	MANE Select	c.243G>T	p.Pro81Pro	synonymous	Exon 3 of 3	NP_060817.1	Q9NUS5
	AP5S1	NM_001204446.2		c.243G>T	p.Pro81Pro	synonymous	Exon 3 of 3	NP_001191375.1	Q9NUS5
	AP5S1	NM_001204447.2		c.243G>T	p.Pro81Pro	synonymous	Exon 3 of 3	NP_001191376.1	Q9NUS5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AP5S1	ENST00000615891.2	TSL:1 MANE Select	c.243G>T	p.Pro81Pro	synonymous	Exon 3 of 3	ENSP00000481750.1	Q9NUS5
	AP5S1	ENST00000379573.6	TSL:1	c.*59G>T		3_prime_UTR	Exon 3 of 3	ENSP00000368892.2	Q5JX74
	AP5S1	ENST00000379567.6	TSL:2	c.243G>T	p.Pro81Pro	synonymous	Exon 3 of 3	ENSP00000368886.2	Q9NUS5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 243652 AF XY: 0.00

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: 6.88e-7 AC: 1 AN: 1453942 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 723596

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44712

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 45760

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5746

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111874

Other (OTH) AF: 0.00 AC: 0 AN: 60304

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	5.8
DANN	Benign	0.62
PhyloP100		-0.14

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

Other links and lift over

dbSNP: rs768409747; hg19: chr20-3804584; COSMIC: COSV99853290; COSMIC: COSV99853290;