chr19-648900-C-A

Variant names:

• chr19-648900-C-A
• rs768972107
• NM_194460.3:c.652G>T

Variant summary

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

The NM_194460.3(RNF126):​c.652G>T​(p.Val218Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000784 in 1,275,720 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. V218I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.8e-7 (0 hom.)
• Consequence: RNF126 NM_194460.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.95
• Publications: 0 publications found

Genes affected

RNF126 (HGNC:21151): (ring finger protein 126) The protein encoded by this gene contains a RING finger domain, a motif present in a variety of functionally distinct proteins and known to be involved in protein-protein and protein-DNA interactions. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 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
RNF126	NM_194460.3	c.652G>T	p.Val218Phe	missense_variant	Exon 7 of 9	ENST00000292363.10	NP_919442.1
RNF126	NM_001366018.1	c.571G>T	p.Val191Phe	missense_variant	Exon 7 of 9		NP_001352947.1
RNF126	XM_047439069.1	c.729G>T	p.Pro243Pro	synonymous_variant	Exon 7 of 8		XP_047295025.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RNF126	ENST00000292363.10	c.652G>T	p.Val218Phe	missense_variant	Exon 7 of 9	1	NM_194460.3	ENSP00000292363.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.84e-7 AC: 1 AN: 1275720 Hom.: 0 Cov.: 29 AF XY: 0.00000161 AC XY: 1 AN XY: 620480

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 26986

American (AMR) AF: 0.00 AC: 0 AN: 21814

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 17824

East Asian (EAS) AF: 0.00 AC: 0 AN: 33502

South Asian (SAS) AF: 0.00 AC: 0 AN: 52586

European-Finnish (FIN) AF: 0.0000217 AC: 1 AN: 46122

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3986

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1021042

Other (OTH) AF: 0.00 AC: 0 AN: 51858

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.90
BayesDel_addAF	Benign	-0.0045	T
BayesDel_noAF	Benign	-0.24
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.26	T;.
Eigen	Uncertain	0.29
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Pathogenic	0.99	D;D
M_CAP	Uncertain	0.18	D
MetaRNN	Uncertain	0.51	D;D
MetaSVM	Benign	-0.60	T
MutationAssessor	Benign	1.8	L;.
PhyloP100		2.0
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-4.0	D;.
REVEL	Benign	0.26
Sift	Uncertain	0.0030	D;.
Sift4G	Uncertain	0.0040	D;.
Vest4		0.53
MutPred		0.42		Gain of catalytic residue at V218 (P = 0.0823);.;
MVP		0.47
MPC		0.84
ClinPred		0.87	D
GERP RS		3.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.31
Mutation Taster		=69/31	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs768972107; hg19: chr19-648900;