3-32165892-C-G

Variant names:

• chr3-32165892-C-G
• NM_015141.4:c.1038C>G
• GPD1L p.Ser346Arg

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_015141.4(GPD1L):​c.1038C>G​(p.Ser346Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict 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. S346S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: GPD1L NM_015141.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.60
• Publications: 0 publications found

Genes affected

GPD1L (HGNC:28956): (glycerol-3-phosphate dehydrogenase 1 like) The protein encoded by this gene catalyzes the conversion of sn-glycerol 3-phosphate to glycerone phosphate. The encoded protein is found in the cytoplasm, associated with the plasma membrane, where it binds the sodium channel, voltage-gated, type V, alpha subunit (SCN5A). Defects in this gene are a cause of Brugada syndrome type 2 (BRS2) as well as sudden infant death syndrome (SIDS). [provided by RefSeq, Jul 2010]

GPD1L Gene-Disease associations (from GenCC):

• Brugada syndrome 2

  Inheritance: Unknown, AD Classification: LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• Brugada syndrome 1

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2389774).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015141.4. 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
	GPD1L	NM_015141.4	MANE Select	c.1038C>G	p.Ser346Arg	missense	Exon 8 of 8	NP_055956.1	Q8N335

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GPD1L	ENST00000282541.10	TSL:1 MANE Select	c.1038C>G	p.Ser346Arg	missense	Exon 8 of 8	ENSP00000282541.6	Q8N335
	GPD1L	ENST00000902849.1		c.1035C>G	p.Ser345Arg	missense	Exon 8 of 8	ENSP00000572908.1
	GPD1L	ENST00000902848.1		c.804C>G	p.Ser268Arg	missense	Exon 7 of 7	ENSP00000572907.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 26

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.15	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.49
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.65	T
M_CAP	Benign	0.039	D
MetaRNN	Benign	0.24	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		1.6
PrimateAI	Benign	0.48	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.044
Sift	Uncertain	0.018	D
Sift4G	Benign	0.18	T
Varity_R		0.23
gMVP		0.40
Mutation Taster		=55/45	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr3-32207384;