2-135638943-G-A

Position:

• chr2-135638943-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001378107.1(R3HDM1):​c.1040G>A​(p.Ser347Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.000020 (0 hom., cov: 32)
• Consequence: R3HDM1 NM_001378107.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 10.0

Genes affected

R3HDM1 (HGNC:9757): (R3H domain containing 1) Enables RNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.329527).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
R3HDM1	NM_001378107.1	c.1040G>A	p.Ser347Asn	missense_variant	14/27	ENST00000683871.1	NP_001365036.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
R3HDM1	ENST00000683871.1	c.1040G>A	p.Ser347Asn	missense_variant	14/27		NM_001378107.1	ENSP00000506980	A1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152134 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152134 Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3 AN XY: 74330

Gnomad4 AFR AF: 0.0000483

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 09, 2022

The c.1040G>A (p.S347N) alteration is located in exon 14 (coding exon 12) of the R3HDM1 gene. This alteration results from a G to A substitution at nucleotide position 1040, causing the serine (S) at amino acid position 347 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.81
BayesDel_addAF	Benign	-0.018	T
BayesDel_noAF	Benign	-0.26
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.46	.;T;.;.;.
Eigen	Pathogenic	0.73
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.99	.;D;D;D;D
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.33	T;T;T;T;T
MetaSVM	Benign	-0.68	T
MutationAssessor	Uncertain	2.6	.;M;.;.;M
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-2.7	D;D;D;.;D
REVEL	Benign	0.23
Sift	Uncertain	0.012	D;D;D;.;D
Sift4G	Uncertain	0.052	T;D;D;T;D
Polyphen		0.99	.;D;.;.;.
Vest4		0.55
MutPred		0.26		.;Loss of phosphorylation at S347 (P = 0.0147);.;.;Loss of phosphorylation at S347 (P = 0.0147);
MVP		0.55
MPC		0.85
ClinPred		0.98	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.58
gMVP		0.58

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: rs2063522411; hg19: chr2-136396513;