1-116944951-C-G

Variant names:

• chr1-116944951-C-G
• rs1379077973
• NM_020440.4:c.691C>G

Variant summary

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

The NM_020440.4(PTGFRN):​c.691C>G​(p.Arg231Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,174 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R231C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PTGFRN NM_020440.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.78
• Publications: 0 publications found

Genes affected

PTGFRN (HGNC:9601): (prostaglandin F2 receptor inhibitor) Predicted to be involved in myoblast fusion involved in skeletal muscle regeneration. Predicted to act upstream of or within lipid droplet organization. Located in cell surface. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020440.4. 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
	PTGFRN	NM_020440.4	MANE Select	c.691C>G	p.Arg231Gly	missense	Exon 3 of 9	NP_065173.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PTGFRN	ENST00000393203.3	TSL:1 MANE Select	c.691C>G	p.Arg231Gly	missense	Exon 3 of 9	ENSP00000376899.2	Q9P2B2
	PTGFRN	ENST00000881332.1		c.691C>G	p.Arg231Gly	missense	Exon 3 of 8	ENSP00000551391.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461174 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 726950

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52730

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60388

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	Uncertain	0.065	T
BayesDel_noAF	Benign	-0.14
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.34	T
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.50
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.013	T
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Pathogenic	2.9	M
PhyloP100		1.8
PrimateAI	Benign	0.37	T
PROVEAN	Pathogenic	-6.0	D
REVEL	Benign	0.15
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.011	D
Polyphen		0.94	P
Vest4		0.36
MutPred		0.55		Loss of methylation at R231 (P = 0.0359)
MVP		0.35
MPC		1.4
ClinPred		0.99	D
GERP RS		5.2
Varity_R		0.79
gMVP		0.84
Mutation Taster		=75/25	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

Other links and lift over

dbSNP: rs1379077973; hg19: chr1-117487573;