rs1437564565

Variant names:

• chr9-109137528-T-C
• rs1437564565
• NM_014334.4:c.809A>G

Your query was ambiguous. Multiple possible variants found:

• chr9-109137528-T-C
• chr9-109137528-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014334.4(FRRS1L):​c.809A>G​(p.Gln270Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,324 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: FRRS1L NM_014334.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.67

Genes affected

FRRS1L (HGNC:1362): (ferric chelate reductase 1 like) This gene encodes a component of the outer-core of an alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor protein in the brain. The encoded protein is thought to interact with inner-core components of the receptor, and play a role in the modulation of glutamate signaling. Mutations in this gene are associated with early infantile epileptic encephalopathy 37. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FRRS1L	NM_014334.4	c.809A>G	p.Gln270Arg	missense_variant	Exon 5 of 5	ENST00000561981.5	NP_055149.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FRRS1L	ENST00000561981.5	c.809A>G	p.Gln270Arg	missense_variant	Exon 5 of 5	1	NM_014334.4	ENSP00000477141.2
FRRS1L	ENST00000644747.1	n.*427A>G		non_coding_transcript_exon_variant	Exon 4 of 4			ENSP00000493964.1
FRRS1L	ENST00000644747.1	n.*427A>G		3_prime_UTR_variant	Exon 4 of 4			ENSP00000493964.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251308 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135832

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461324 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726978

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.54
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.33
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.037	T
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.0055	T
MetaRNN	Uncertain	0.63	D
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	0.0	N
PrimateAI	Pathogenic	0.83	D
Sift4G	Uncertain	0.037	D
Polyphen		0.99	D
Vest4		0.70
MutPred		0.45		Gain of methylation at Q321 (P = 0.0438);
MVP		0.69
MPC		0.16
ClinPred		0.54	D
GERP RS		6.0
Varity_R		0.40
gMVP		0.83

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: rs1437564565; hg19: chr9-111899808;