rs497273

chr12-120766879-C-Gchr12-120766879-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_139015.5(SPPL3):c.974-507G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.753 in 152,104 control chromosomes in the GnomAD database, including 44,331 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.75 (44331 hom., cov: 32)
• Consequence: SPPL3 NM_139015.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0930

Genes affected

SPPL3 (HGNC:30424): (signal peptide peptidase like 3) Enables aspartic endopeptidase activity, intramembrane cleaving and protein homodimerization activity. Involved in several processes, including T cell receptor signaling pathway; positive regulation of calcineurin-NFAT signaling cascade; and positive regulation of protein dephosphorylation. Located in Golgi-associated vesicle membrane; plasma membrane; and rough endoplasmic reticulum. Is integral component of cytoplasmic side of endoplasmic reticulum membrane and integral component of lumenal side of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.908 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SPPL3	NM_139015.5	c.974-507G>C		intron_variant		ENST00000353487.7
SPPL3	XM_011537925.3	c.974-507G>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPPL3	ENST00000353487.7	c.974-507G>C		intron_variant		1	NM_139015.5	P1
SPPL3	ENST00000545209.1	n.508-507G>C		intron_variant, non_coding_transcript_variant		1
SPPL3	ENST00000392495.7	n.1550-507G>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.753 AC: 114476 AN: 151986 Hom.: 44272 Cov.: 32

Gnomad AFR AF: 0.915

Gnomad AMI AF: 0.805

Gnomad AMR AF: 0.803

Gnomad ASJ AF: 0.749

Gnomad EAS AF: 0.846

Gnomad SAS AF: 0.888

Gnomad FIN AF: 0.636

Gnomad MID AF: 0.810

Gnomad NFE AF: 0.645

Gnomad OTH AF: 0.735

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.753 AC: 114594 AN: 152104 Hom.: 44331 Cov.: 32 AF XY: 0.762 AC XY: 56611 AN XY: 74336

Gnomad4 AFR AF: 0.915

Gnomad4 AMR AF: 0.804

Gnomad4 ASJ AF: 0.749

Gnomad4 EAS AF: 0.846

Gnomad4 SAS AF: 0.888

Gnomad4 FIN AF: 0.636

Gnomad4 NFE AF: 0.645

Gnomad4 OTH AF: 0.737

Alfa AF: 0.553 Hom.: 1365

Bravo AF: 0.771

Asia WGS AF: 0.856 AC: 2974 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
Cadd	Benign	1.3
Dann	Benign	0.31

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: rs497273; hg19: chr12-121204682;