chr6-72235647-G-C

Variant names:

• chr6-72235647-G-C
• rs77121218
• NM_014989.7:c.1776G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014989.7(RIMS1):​c.1776G>C​(p.Glu592Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,610,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E592E) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RIMS1 NM_014989.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.22
• Publications: 10 publications found

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]

RIMS1 Gene-Disease associations (from GenCC):

• cone-rod dystrophy 7

  Inheritance: AD Classification: STRONG, LIMITED, NO_KNOWN Submitted by: G2P, Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae)
• cone-rod dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• autism spectrum disorder

  Inheritance: AD Classification: LIMITED Submitted by: Illumina

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20024335).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RIMS1	NM_014989.7	c.1776G>C	p.Glu592Asp	missense_variant	Exon 8 of 34	ENST00000521978.6	NP_055804.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RIMS1	ENST00000521978.6	c.1776G>C	p.Glu592Asp	missense_variant	Exon 8 of 34	1	NM_014989.7	ENSP00000428417.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151990 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000657

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000813 AC: 2 AN: 245860 AF XY: 0.0000150

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000179

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1458832 Hom.: 0 Cov.: 29 AF XY: 0.00000276 AC XY: 2 AN XY: 725498

⚠️ 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: 33384

American (AMR) AF: 0.00 AC: 0 AN: 44446

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26036

East Asian (EAS) AF: 0.00 AC: 0 AN: 39576

South Asian (SAS) AF: 0.00 AC: 0 AN: 85662

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53304

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1110380

Other (OTH) AF: 0.00 AC: 0 AN: 60284

⚠️ 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 AF: 0.00000658 AC: 1 AN: 151990 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74226

African (AFR) AF: 0.00 AC: 0 AN: 41384

American (AMR) AF: 0.0000657 AC: 1 AN: 15230

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67972

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 12

ExAC AF: 0.0000166 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.030	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	18
DANN	Benign	0.46
DEOGEN2	Benign	0.13	.;.;.;.;T;.;.;.;.;.
Eigen	Benign	-0.12
Eigen_PC	Benign	-0.067
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.78	T;T;T;T;T;T;T;D;T;T
M_CAP	Benign	0.0090	T
MetaRNN	Benign	0.20	T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.72	N;N;N;N;N;N;N;.;.;.
PhyloP100		1.2
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	0.26	N;N;N;N;N;N;N;N;N;N
REVEL	Benign	0.19
Sift	Benign	1.0	T;T;T;T;T;T;T;T;T;T
Sift4G	Benign	1.0	T;T;T;T;T;T;T;T;T;T
Polyphen		0.78	.;.;.;.;P;.;.;.;.;.
Vest4		0.72
MutPred		0.27		Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);Gain of catalytic residue at K591 (P = 0.0802);.;.;.;
MVP		0.67
MPC		0.13
ClinPred		0.013	T
GERP RS		0.99
Varity_R		0.067
gMVP		0.49
Mutation Taster		=55/45	polymorphism

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

Other links and lift over

dbSNP: rs77121218; hg19: chr6-72945350;