chr15-50719944-T-C

Variant names:

• chr15-50719944-T-C
• rs2062631235
• NM_032802.4:c.1484A>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_032802.4(SPPL2A):​c.1484A>G​(p.Tyr495Cys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPPL2A NM_032802.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.18
• Publications: 0 publications found

Genes affected

SPPL2A (HGNC:30227): (signal peptide peptidase like 2A) This gene encodes a member of the GXGD family of aspartic proteases, which are transmembrane proteins with two conserved catalytic motifs localized within the membrane-spanning regions, as well as a member of the signal peptide peptidase-like protease (SPPL) family. This protein is expressed in all major adult human tissues and localizes to late endosomal compartments and lysosomal membranes. A pseudogene of this gene also lies on chromosome 15. [provided by RefSeq, Feb 2012]

SPPL2A Gene-Disease associations (from GenCC):

• immunodeficiency 86

  Inheritance: AR Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.755

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032802.4. 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
	SPPL2A	NM_032802.4	MANE Select	c.1484A>G	p.Tyr495Cys	missense	Exon 14 of 15	NP_116191.2
	SPPL2A	NM_001438111.1		c.1538A>G	p.Tyr513Cys	missense	Exon 15 of 16	NP_001425040.1
	SPPL2A	NM_001438112.1		c.1327+2180A>G		intron	N/A	NP_001425041.1	A0A8V8TLZ2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPPL2A	ENST00000261854.10	TSL:1 MANE Select	c.1484A>G	p.Tyr495Cys	missense	Exon 14 of 15	ENSP00000261854.5	Q8TCT8
	SPPL2A	ENST00000951698.1		c.1541A>G	p.Tyr514Cys	missense	Exon 15 of 16	ENSP00000621757.1
	SPPL2A	ENST00000951700.1		c.1445A>G	p.Tyr482Cys	missense	Exon 15 of 16	ENSP00000621759.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.065	T
BayesDel_noAF	Benign	-0.14
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.065	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.031	D
MetaRNN	Pathogenic	0.76	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.7	M
PhyloP100		5.2
PrimateAI	Uncertain	0.59	T
PROVEAN	Pathogenic	-6.2	D
REVEL	Benign	0.28
Sift	Uncertain	0.012	D
Sift4G	Uncertain	0.047	D
Polyphen		1.0	D
Vest4		0.91
MutPred		0.43		Loss of phosphorylation at Y495 (P = 0.0269)
MVP		0.31
MPC		0.65
ClinPred		0.99	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.57
gMVP		0.43
Mutation Taster		=57/43	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs2062631235; hg19: chr15-51012141;