Genetic Variant BORCS6:p.Met135Val (chr17-8189738-T-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017622.3(BORCS6):c.403A>G(p.Met135Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000691 in 1,447,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 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: 6.9e-7 ( 0 hom. )

Consequence

BORCS6
NM_017622.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.346

Variant links:

Genes affected

BORCS6 (HGNC:25939): (BLOC-1 related complex subunit 6) Enables identical protein binding activity. Involved in lysosome localization. Part of BORC complex. [provided by Alliance of Genome Resources, Apr 2022]

BORCS6 links:

ENSG00000279152 (HGNC:):

ENSG00000279152 links:

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ACMG classification

Classification made for transcript

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=0.05059436).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BORCS6	NM_017622.3 link	c.403A>G	p.Met135Val	missense_variant	Exon 1 of 1	ENST00000389017.6	NP_060092.2	Q96GS4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BORCS6	ENST00000389017.6 link	c.403A>G	p.Met135Val	missense_variant	Exon 1 of 1	6	NM_017622.3	ENSP00000373669.4		Q96GS4
ENSG00000279152	ENST00000622992.1 link	n.*50T>C		downstream_gene_variant		6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000439

AC:

AN:

227748

Hom.:

AF XY:

0.00000791

AC XY:

AN XY:

126454

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000961

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.91e-7

AC:

AN:

1447260

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

720598

show subpopulations

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000306

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 02, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.403A>G (p.M135V) alteration is located in exon 1 (coding exon 1) of the BORCS6 gene. This alteration results from a A to G substitution at nucleotide position 403, causing the methionine (M) at amino acid position 135 to be replaced by a valine (V). 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

0.12

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

6.4

DANN

Benign

0.63

DEOGEN2

Benign

0.017

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.066

LIST_S2

Benign

0.39

M_CAP

Benign

0.0092

MetaRNN

Benign

0.051

MetaSVM

Benign

-1.1

PROVEAN

Benign

-0.51

REVEL

Benign

0.079

Sift

Benign

0.10

Sift4G

Benign

0.15

Polyphen

0.0010

Vest4

0.11

MutPred

0.19

Loss of helix (P = 0.0444);

MVP

0.014

ClinPred

0.066

GERP RS

-4.2

Varity_R

0.10

gMVP

0.18

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over