chr6-5288973-G-C

Variant names:

• chr6-5288973-G-C
• rs2326584
• NM_006567.5:c.-22+27313G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006567.5(FARS2):​c.-22+27313G>C variant causes a intron 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: FARS2 NM_006567.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0590
• Publications: 4 publications found

Genes affected

FARS2 (HGNC:21062): (phenylalanyl-tRNA synthetase 2, mitochondrial) This gene encodes a protein that transfers phenylalanine to its cognate tRNA. This protein localizes to the mitochondrion and plays a role in mitochondrial protein translation. Mutations in this gene can cause combined oxidative phosphorylation deficiency 14 (Alpers encephalopathy). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

FARS2 Gene-Disease associations (from GenCC):

• metabolic disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• combined oxidative phosphorylation defect type 14

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• hereditary spastic paraplegia 77

  Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• Leigh syndrome

  Inheritance: AR Classification: MODERATE Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FARS2	NM_006567.5	c.-22+27313G>C		intron_variant	Intron 1 of 6	ENST00000274680.9	NP_006558.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FARS2	ENST00000274680.9	c.-22+27313G>C		intron_variant	Intron 1 of 6	1	NM_006567.5	ENSP00000274680.4
FARS2	ENST00000324331.10	c.-22+27615G>C		intron_variant	Intron 1 of 6	1		ENSP00000316335.5
FARS2	ENST00000602691.1	c.-22+16484G>C		intron_variant	Intron 2 of 2	3		ENSP00000473394.1
FARS2	ENST00000648580.1	n.-22+27313G>C		intron_variant	Intron 1 of 8			ENSP00000497889.1

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 5080

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	2.0
DANN	Benign	0.60
PhyloP100		0.059

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: rs2326584; hg19: chr6-5289206;