chr12-130399152-C-T

Position:

• chr12-130399152-C-T

Variant summary

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

The ENST00000261655.8(RIMBP2):​c.3142G>A​(p.Val1048Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: RIMBP2 ENST00000261655.8 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.38

Genes affected

RIMBP2 (HGNC:30339): (RIMS binding protein 2) Predicted to be involved in neuromuscular synaptic transmission. Predicted to be located in plasma membrane and synapse. Predicted to be active in presynaptic active zone cytoplasmic component. [provided by Alliance of Genome Resources, Apr 2022]

PIWIL1 (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=0.2610901).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RIMBP2	NM_001393629.1	c.3900+527G>A		intron_variant		ENST00000690449.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RIMBP2	ENST00000690449.1	c.3900+527G>A		intron_variant			NM_001393629.1	P5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1241414 Hom.: 0 Cov.: 26 AF XY: 0.00 AC XY: 0 AN XY: 610074

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: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 21, 2022

The c.3142G>A (p.V1048I) alteration is located in exon 19 (coding exon 17) of the RIMBP2 gene. This alteration results from a G to A substitution at nucleotide position 3142, causing the valine (V) at amino acid position 1048 to be replaced by an isoleucine (I). 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
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.018	T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.26	T
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.3	M
MutationTaster	Benign	0.96	D
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-0.48	N
REVEL	Benign	0.084
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.89	P
Vest4		0.37
MutPred		0.22		Gain of catalytic residue at H1049 (P = 0.1039);
MVP		0.41
MPC		0.83
ClinPred		0.97	D
GERP RS		5.6
Varity_R		0.19
gMVP		0.20

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: chr12-130883697;