rs374524431

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001348484.3(RIMS2):​c.77T>C​(p.Met26Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000627 in 1,610,716 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 0.00041 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

RIMS2
NM_001348484.3 missense

Scores

1
6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.11

Publications

0 publications found
Variant links:
Genes affected
RIMS2 (HGNC:17283): (regulating synaptic membrane exocytosis 2) The protein encoded by this gene is a presynaptic protein that interacts with RAB3, a protein important for normal neurotransmitter release. The encoded protein can also bind several other synaptic proteins, including UNC-13 homolog B, ELKS/Rab6-interacting/CAST family member 1, and synaptotagmin 1. This protein is involved in synaptic membrane exocytosis. Polymorphisms in this gene have been associated with degenerative lumbar scoliosis. [provided by RefSeq, Feb 2017]
RIMS2 Gene-Disease associations (from GenCC):
  • cone-rod synaptic disorder syndrome, congenital nonprogressive
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • cone-rod synaptic disorder, congenital nonprogressive
    Inheritance: AR Classification: STRONG Submitted by: Franklin by Genoox

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0389055).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000414 (63/152196) while in subpopulation AFR AF = 0.00144 (60/41542). AF 95% confidence interval is 0.00115. There are 0 homozygotes in GnomAd4. There are 28 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RIMS2NM_001348484.3 linkc.77T>C p.Met26Thr missense_variant Exon 1 of 30 ENST00000696799.1 NP_001335413.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RIMS2ENST00000696799.1 linkc.77T>C p.Met26Thr missense_variant Exon 1 of 30 NM_001348484.3 ENSP00000512879.1 A0A8Q3SIU4
ENSG00000285982ENST00000649416.1 linkc.-232+833A>G intron_variant Intron 1 of 8 ENSP00000496817.1 A0A3B3IRK5

Frequencies

GnomAD3 genomes
AF:
0.000414
AC:
63
AN:
152078
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000478
GnomAD2 exomes
AF:
0.0000651
AC:
16
AN:
245658
AF XY:
0.0000374
show subpopulations
Gnomad AFR exome
AF:
0.000918
Gnomad AMR exome
AF:
0.0000590
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000261
AC:
38
AN:
1458520
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
12
AN XY:
725538
show subpopulations
African (AFR)
AF:
0.000989
AC:
33
AN:
33368
American (AMR)
AF:
0.0000674
AC:
3
AN:
44530
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26072
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39604
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85996
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5100
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111006
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60220
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000414
AC:
63
AN:
152196
Hom.:
0
Cov.:
32
AF XY:
0.000376
AC XY:
28
AN XY:
74406
show subpopulations
African (AFR)
AF:
0.00144
AC:
60
AN:
41542
American (AMR)
AF:
0.000131
AC:
2
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5138
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67982
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000116
Hom.:
0
Bravo
AF:
0.000389
ESP6500AA
AF:
0.000790
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000745
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jan 06, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.77T>C (p.M26T) alteration is located in exon 1 (coding exon 1) of the RIMS2 gene. This alteration results from a T to C substitution at nucleotide position 77, causing the methionine (M) at amino acid position 26 to be replaced by a threonine (T). 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
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.39
CADD
Uncertain
24
DANN
Uncertain
0.98
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Benign
0.62
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.065
D
MetaRNN
Benign
0.039
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L;.
PhyloP100
7.1
PrimateAI
Pathogenic
0.92
D
PROVEAN
Benign
-1.6
N;.
REVEL
Benign
0.10
Sift
Uncertain
0.013
D;.
Sift4G
Uncertain
0.0060
D;D
Vest4
0.44
MVP
0.068
ClinPred
0.092
T
GERP RS
3.9
PromoterAI
-0.038
Neutral
gMVP
0.20
Mutation Taster
=54/46
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

Publications

Other links and lift over

dbSNP: rs374524431; hg19: chr8-104513191; API