NM_198565.3:c.322C>G

Variant names:

• chr3-196659965-C-G
• NM_198565.3:c.322C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_198565.3(NRROS):​c.322C>G​(p.Arg108Gly) 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 1,461,520 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict 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: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: NRROS NM_198565.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.319

Genes affected

NRROS (HGNC:24613): (negative regulator of reactive oxygen species) Enables transforming growth factor beta binding activity. Predicted to be involved in several processes, including microglia development; sequestering of TGFbeta in extracellular matrix; and transforming growth factor beta1 activation. Located in cell surface. [provided by Alliance of Genome Resources, Apr 2022]

PIGX (HGNC:26046): (phosphatidylinositol glycan anchor biosynthesis class X) This gene encodes a type I transmembrane protein in the endoplasmic reticulum (ER). The protein is an essential component of glycosylphosphatidylinositol-mannosyltransferase I, which transfers the first of the four mannoses in the GPI-anchor precursors during GPI-anchor biosynthesis. Studies in rat indicate that the protein is translated from a non-AUG translation initiation site. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13894024).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRROS	NM_198565.3	c.322C>G	p.Arg108Gly	missense_variant	Exon 3 of 3	ENST00000328557.5	NP_940967.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRROS	ENST00000328557.5	c.322C>G	p.Arg108Gly	missense_variant	Exon 3 of 3	1	NM_198565.3	ENSP00000328625.4
PIGX	ENST00000426755.5	c.-12+5318C>G		intron_variant	Intron 2 of 5	3		ENSP00000409073.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461520 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727066

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	12
DANN	Uncertain	0.98
DEOGEN2	Benign	0.21	T
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.46
FATHMM_MKL	Benign	0.18	N
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.0094	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.93	T
PrimateAI	Benign	0.20	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.12
Sift	Benign	0.038	D
Sift4G	Benign	0.10	T
Polyphen		0.25	B
Vest4		0.29
MutPred		0.50		Loss of helix (P = 0.1299);
MVP		0.13
MPC		0.65
ClinPred		0.46	T
GERP RS		4.3
Varity_R		0.15
gMVP		0.42

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-196386836;