6-71887033-G-T

Position:

• chr6-71887033-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014989.7(RIMS1):​c.10G>T​(p.Ala4Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,664 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RIMS1 NM_014989.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.08

Genes affected

RIMS1 (HGNC:17282): (regulating synaptic membrane exocytosis 1) The protein encoded by this gene is a RAS gene superfamily member that regulates synaptic vesicle exocytosis. This gene also plays a role in the regulation of voltage-gated calcium channels during neurotransmitter and insulin release. Mutations have suggested a role cognition and have been identified as the cause of cone-rod dystrophy type 7. Multiple transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Mar 2012]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05815777).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RIMS1	NM_014989.7	c.10G>T	p.Ala4Ser	missense_variant	1/34	ENST00000521978.6	NP_055804.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RIMS1	ENST00000521978.6	c.10G>T	p.Ala4Ser	missense_variant	1/34	1	NM_014989.7	ENSP00000428417.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460664 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726552

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 11, 2022

This variant is not present in population databases (gnomAD no frequency). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with RIMS1-related conditions. This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 4 of the RIMS1 protein (p.Ala4Ser). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.10	.;.;.;.;T;.;.
Eigen	Benign	-0.55
Eigen_PC	Benign	-0.31
FATHMM_MKL	Benign	0.48	N
LIST_S2	Benign	0.78	T;T;T;T;T;T;T
M_CAP	Uncertain	0.11	D
MetaRNN	Benign	0.058	T;T;T;T;T;T;T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	-1.4	N;N;N;N;N;N;N
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-0.12	N;N;N;N;N;N;N
REVEL	Benign	0.079
Sift	Benign	0.67	T;T;T;T;T;T;T
Sift4G	Benign	0.90	T;T;T;T;T;T;T
Polyphen		0.0	.;.;.;.;B;.;.
Vest4		0.067
MutPred		0.20		Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);Gain of phosphorylation at A4 (P = 0.0069);
MVP		0.30
MPC		1.3
ClinPred		0.39	T
GERP RS		3.7
Varity_R		0.081
gMVP		0.46

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: chr6-72596736;