NM_001272071.2:c.1-3C>A

Variant names:

• chrX-15852527-G-T
• rs1060499672
• NM_001272071.2:c.1-3C>A

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3 PP5_Moderate

The NM_001272071.2(AP1S2):​c.1-3C>A variant causes a splice region, intron change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 24)
• Consequence: AP1S2 NM_001272071.2 splice_region, intron
• Scores: Splicing: ADA: 0.9995
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 4.51
• Publications: 0 publications found

Genes affected

AP1S2 (HGNC:560): (adaptor related protein complex 1 subunit sigma 2) Adaptor protein complex 1 is found at the cytoplasmic face of coated vesicles located at the Golgi complex, where it mediates both the recruitment of clathrin to the membrane and the recognition of sorting signals within the cytosolic tails of transmembrane receptors. This complex is a heterotetramer composed of two large, one medium, and one small adaptin subunit. The protein encoded by this gene serves as the small subunit of this complex and is a member of the adaptin protein family. Transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2013]

AP1S2 Gene-Disease associations (from GenCC):

• syndromic X-linked intellectual disability 5

  Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• X-linked syndromic complex neurodevelopmental disorder

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• fried syndrome

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• autism spectrum disorder

  Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant X-15852527-G-T is Pathogenic according to our data. Variant chrX-15852527-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 397541.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001272071.2. 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
	AP1S2	NM_001272071.2	MANE Select	c.1-3C>A		splice_region intron	N/A	NP_001259000.1	A0A5F9ZHW1
	AP1S2	NM_001369007.1		c.1-3C>A		splice_region intron	N/A	NP_001355936.1	A6NH01
	AP1S2	NM_001440864.1		c.1-3C>A		splice_region intron	N/A	NP_001427793.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AP1S2	ENST00000672987.1	MANE Select	c.1-3C>A		splice_region intron	N/A	ENSP00000500695.1	A0A5F9ZHW1
	AP1S2	ENST00000329235.6	TSL:1	c.1-3C>A		splice_region intron	N/A	ENSP00000328789.2	P56377-1
	AP1S2	ENST00000545766.7	TSL:1	c.-109-26C>A		intron	N/A	ENSP00000444957.3	F6SFB5

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 24

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Pettigrew syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.27
CADD	Benign	22
DANN	Benign	0.97
PhyloP100		4.5
Mutation Taster		=1/99	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.97
SpliceAI score (max)		0.90		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.90		Position offset: -3

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1060499672; hg19: chrX-15870650;