chr19-45489377-C-A

Position:

• chr19-45489377-C-A

Variant summary

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

The NM_005619.5(RTN2):​c.1210G>T​(p.Val404Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,428,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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: 30)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RTN2 NM_005619.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.166

Genes affected

RTN2 (HGNC:10468): (reticulon 2) This gene belongs to the family of reticulon encoding genes. Reticulons are associated with the endoplasmic reticulum, and are involved in neuroendocrine secretion or in membrane trafficking in neuroendocrine cells. Reticulon proteins also play an important role in the replication of positive-strand RNA (ssRNA) viruses. Mutations at this locus have been associated with autosomal dominant spastic paraplegia-12. [provided by RefSeq, Aug 2020]

PPM1N (HGNC:26845): (protein phosphatase, Mg2+/Mn2+ dependent 1N (putative)) Predicted to enable metal ion binding activity and protein serine/threonine phosphatase activity. Predicted to be involved in negative regulation of I-kappaB kinase/NF-kappaB signaling and positive regulation of canonical Wnt signaling pathway. Predicted to be active in cytosol and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

RTN2 (HGNC:):

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=0.10480267).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RTN2	NM_005619.5	c.1210G>T	p.Val404Leu	missense_variant	6/11	ENST00000245923.9	NP_005610.1
RTN2	NM_206900.3	c.991G>T	p.Val331Leu	missense_variant	5/10		NP_996783.1
RTN2	NM_206901.3	c.190G>T	p.Val64Leu	missense_variant	2/7		NP_996784.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RTN2	ENST00000245923.9	c.1210G>T	p.Val404Leu	missense_variant	6/11	1	NM_005619.5	ENSP00000245923.3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000140 AC: 2 AN: 1428978 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 707580

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000527

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.: 30

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	15
DANN	Uncertain	0.98
DEOGEN2	Benign	0.27	T;.;T;.
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.50
FATHMM_MKL	Benign	0.40	N
LIST_S2	Benign	0.73	T;T;T;T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.10	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.56	N;.;.;.
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-1.6	N;N;.;N
REVEL	Benign	0.049
Sift	Benign	0.10	T;T;.;T
Sift4G	Benign	0.32	T;T;T;T
Polyphen		0.13	B;.;.;B
Vest4		0.30
MutPred		0.52		Loss of MoRF binding (P = 0.1136);.;.;.;
MVP		0.13
MPC		0.32
ClinPred		0.23	T
GERP RS		2.0
Varity_R		0.11
gMVP		0.38

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs200512597; hg19: chr19-45992635;