rs6067

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP7BP4BA1

This summary comes from the ClinGen Evidence Repository: The synonymous variant NM_000173.7(GP1BA):c.1074A>G (p.Arg358=) is not predicted by SpliceAI to impact splicing (score 0.00; BP4). In addition, it occurs at a nucleotide that is not highly conserved as shown by phyloP score of 0.134386 (BP7). The Grpmax Filtering allele frequency in gnomAD v4.1 is 0.2116 (based on 9653/44866 alleles, including 1018 homozygotes) in the East Asian population, which is higher than the ClinGen PD VCEP threshold (>0.001; BA1). In summary, this variant meets the criteria to be classified as Benign for autosomal recessive Bernard-Soulier syndrome based on the ACMG/AMP criteria applied, as specified by the ClinGen PD VCEP: BA1, BP4, BP7 (ClinGen Platelet Disorders VCEP specifications version 1). LINK:https://erepo.genome.network/evrepo/ui/classification/CA8314893/MONDO:0009276/079

Frequency

Genomes: 𝑓 0.049 ( 318 hom., cov: 31)
Exomes 𝑓: 0.045 ( 2660 hom. )

Consequence

GP1BA
NM_000173.7 synonymous

Scores

2

Clinical Significance

Benign reviewed by expert panel B:4

Conservation

PhyloP100: 0.334

Publications

10 publications found
Variant links:
Genes affected
GP1BA (HGNC:4439): (glycoprotein Ib platelet subunit alpha) Glycoprotein Ib (GP Ib) is a platelet surface membrane glycoprotein composed of a heterodimer, an alpha chain and a beta chain, that is linked by disulfide bonds. The Gp Ib functions as a receptor for von Willebrand factor (VWF). The complete receptor complex includes noncovalent association of the alpha and beta subunits with platelet glycoprotein IX and platelet glycoprotein V. The binding of the GP Ib-IX-V complex to VWF facilitates initial platelet adhesion to vascular subendothelium after vascular injury, and also initiates signaling events within the platelet that lead to enhanced platelet activation, thrombosis, and hemostasis. This gene encodes the alpha subunit. Mutations in this gene result in Bernard-Soulier syndromes and platelet-type von Willebrand disease. The coding region of this gene is known to contain a polymophic variable number tandem repeat (VNTR) domain that is associated with susceptibility to nonarteritic anterior ischemic optic neuropathy. [provided by RefSeq, Oct 2013]
CHRNE (HGNC:1966): (cholinergic receptor nicotinic epsilon subunit) Acetylcholine receptors at mature mammalian neuromuscular junctions are pentameric protein complexes composed of four subunits in the ratio of two alpha subunits to one beta, one epsilon, and one delta subunit. The acetylcholine receptor changes subunit composition shortly after birth when the epsilon subunit replaces the gamma subunit seen in embryonic receptors. Mutations in the epsilon subunit are associated with congenital myasthenic syndrome. [provided by RefSeq, Sep 2009]
CHRNE Gene-Disease associations (from GenCC):
  • congenital myasthenic syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: Illumina
  • congenital myasthenic syndrome 4A
    Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • congenital myasthenic syndrome 4B
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • congenital myasthenic syndrome 4C
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • postsynaptic congenital myasthenic syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
For more information check the summary or visit ClinGen Evidence Repository.
BP7
For more information check the summary or visit ClinGen Evidence Repository.
BA1
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GP1BANM_000173.7 linkc.1074A>G p.Arg358Arg synonymous_variant Exon 2 of 2 ENST00000329125.6 NP_000164.5 P07359L7UYB8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GP1BAENST00000329125.6 linkc.1074A>G p.Arg358Arg synonymous_variant Exon 2 of 2 1 NM_000173.7 ENSP00000329380.5 P07359
CHRNEENST00000649830.1 linkc.-888+664T>C intron_variant Intron 1 of 10 ENSP00000496907.1 A0A3B3IRM1

Frequencies

GnomAD3 genomes
AF:
0.0487
AC:
7400
AN:
152040
Hom.:
318
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0265
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.121
Gnomad ASJ
AF:
0.0484
Gnomad EAS
AF:
0.215
Gnomad SAS
AF:
0.0952
Gnomad FIN
AF:
0.0240
Gnomad MID
AF:
0.0506
Gnomad NFE
AF:
0.0344
Gnomad OTH
AF:
0.0517
GnomAD2 exomes
AF:
0.0692
AC:
17253
AN:
249270
AF XY:
0.0669
show subpopulations
Gnomad AFR exome
AF:
0.0278
Gnomad AMR exome
AF:
0.138
Gnomad ASJ exome
AF:
0.0575
Gnomad EAS exome
AF:
0.214
Gnomad FIN exome
AF:
0.0255
Gnomad NFE exome
AF:
0.0345
Gnomad OTH exome
AF:
0.0638
GnomAD4 exome
AF:
0.0452
AC:
66052
AN:
1461678
Hom.:
2660
Cov.:
38
AF XY:
0.0465
AC XY:
33793
AN XY:
727122
show subpopulations
African (AFR)
AF:
0.0269
AC:
901
AN:
33480
American (AMR)
AF:
0.135
AC:
6056
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0565
AC:
1477
AN:
26136
East Asian (EAS)
AF:
0.215
AC:
8546
AN:
39700
South Asian (SAS)
AF:
0.0925
AC:
7981
AN:
86252
European-Finnish (FIN)
AF:
0.0267
AC:
1425
AN:
53402
Middle Eastern (MID)
AF:
0.0741
AC:
427
AN:
5766
European-Non Finnish (NFE)
AF:
0.0323
AC:
35862
AN:
1111846
Other (OTH)
AF:
0.0559
AC:
3377
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
4661
9323
13984
18646
23307
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
1530
3060
4590
6120
7650
<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:
0.0486
AC:
7401
AN:
152158
Hom.:
318
Cov.:
31
AF XY:
0.0516
AC XY:
3836
AN XY:
74382
show subpopulations
African (AFR)
AF:
0.0265
AC:
1100
AN:
41478
American (AMR)
AF:
0.122
AC:
1858
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.0484
AC:
168
AN:
3472
East Asian (EAS)
AF:
0.214
AC:
1107
AN:
5166
South Asian (SAS)
AF:
0.0942
AC:
454
AN:
4818
European-Finnish (FIN)
AF:
0.0240
AC:
255
AN:
10614
Middle Eastern (MID)
AF:
0.0510
AC:
15
AN:
294
European-Non Finnish (NFE)
AF:
0.0344
AC:
2338
AN:
68002
Other (OTH)
AF:
0.0502
AC:
106
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
351
703
1054
1406
1757
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
94
188
282
376
470
<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:
0.0443
Hom.:
153
Bravo
AF:
0.0552
Asia WGS
AF:
0.128
AC:
444
AN:
3478
EpiCase
AF:
0.0374
EpiControl
AF:
0.0373

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Benign:2
May 05, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Bernard Soulier syndrome Benign:1
Feb 11, 2025
ClinGen Platelet Disorders Variant Curation Expert Panel, ClinGen
Significance:Benign
Review Status:reviewed by expert panel
Collection Method:curation

The synonymous variant NM_000173.7(GP1BA):c.1074A>G (p.Arg358=) is not predicted by SpliceAI to impact splicing (score 0.00; BP4). In addition, it occurs at a nucleotide that is not highly conserved as shown by phyloP score of 0.134386 (BP7). The Grpmax Filtering allele frequency in gnomAD v4.1 is 0.2116 (based on 9653/44866 alleles, including 1018 homozygotes) in the East Asian population, which is higher than the ClinGen PD VCEP threshold (>0.001; BA1). In summary, this variant meets the criteria to be classified as Benign for autosomal recessive Bernard-Soulier syndrome based on the ACMG/AMP criteria applied, as specified by the ClinGen PD VCEP: BA1, BP4, BP7 (ClinGen Platelet Disorders VCEP specifications version 1). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
1.9
DANN
Benign
0.77
PhyloP100
0.33
Mutation Taster
=100/0
polymorphism (auto)

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: rs6067; hg19: chr17-4836973; COSMIC: COSV56699556; COSMIC: COSV56699556; API