10-102854416-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001136200.2(BORCS7):​c.130C>T​(p.Arg44Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000195 in 1,539,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R44Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

BORCS7
NM_001136200.2 missense

Scores

3
8
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.82

Publications

0 publications found
Variant links:
Genes affected
BORCS7 (HGNC:23516): (BLOC-1 related complex subunit 7) Part of BORC complex. [provided by Alliance of Genome Resources, Apr 2022]
BORCS7-ASMT (HGNC:49183): (BORCS7-ASMT readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring C10orf32 (chromosome 10 open reading frame 32) and AS3MT (arsenic, +3 oxidation state, methyltransferase) genes. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is therefore unlikely to produce a protein product. [provided by RefSeq, Dec 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.776

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BORCS7NM_001136200.2 linkc.130C>T p.Arg44Trp missense_variant Exon 1 of 5 ENST00000339834.10 NP_001129672.1 Q96B45A0A0B4J1R7
BORCS7NM_144591.5 linkc.130C>T p.Arg44Trp missense_variant Exon 1 of 6 NP_653192.2 Q96B45A0A0B4J1R7
BORCS7-ASMTNR_037644.1 linkn.207C>T non_coding_transcript_exon_variant Exon 1 of 15

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BORCS7ENST00000339834.10 linkc.130C>T p.Arg44Trp missense_variant Exon 1 of 5 1 NM_001136200.2 ENSP00000342331.5 Q96B45
BORCS7-ASMTENST00000299353.6 linkn.130C>T non_coding_transcript_exon_variant Exon 1 of 15 5 ENSP00000299353.5 A0A0B4J1R7

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152080
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
AC:
0
AN:
159016
AF XY:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.21e-7
AC:
1
AN:
1387568
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
681060
show subpopulations
African (AFR)
AF:
0.0000316
AC:
1
AN:
31652
American (AMR)
AF:
0.00
AC:
0
AN:
35596
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25078
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35688
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79110
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49138
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5444
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1068480
Other (OTH)
AF:
0.00
AC:
0
AN:
57382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152080
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74284
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000483
AC:
2
AN:
41406
American (AMR)
AF:
0.00
AC:
0
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.002339), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.350
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Sep 26, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.130C>T (p.R44W) alteration is located in exon 1 (coding exon 1) of the BORCS7 gene. This alteration results from a C to T substitution at nucleotide position 130, causing the arginine (R) at amino acid position 44 to be replaced by a tryptophan (W). 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
Pathogenic
0.71
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.040
CADD
Pathogenic
31
DANN
Uncertain
1.0
Eigen
Benign
0.077
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
.;D
M_CAP
Benign
0.032
D
MetaRNN
Pathogenic
0.78
D;D
MetaSVM
Benign
-0.77
T
PhyloP100
6.8
PROVEAN
Pathogenic
-6.3
D;D
REVEL
Benign
0.29
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0030
D;D
Vest4
0.87
MVP
0.54
MPC
0.18
ClinPred
1.0
D
GERP RS
5.0
PromoterAI
-0.077
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
gMVP
0.49
Mutation Taster
=61/39
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs901588590; hg19: chr10-104614173; API