rs7058826

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000132.4(F8):​c.1010-27G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.144 in 1,204,928 control chromosomes in the GnomAD database, including 9,109 homozygotes. There are 54,452 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.13 ( 798 hom., 4072 hem., cov: 22)
Exomes 𝑓: 0.14 ( 8311 hom. 50380 hem. )

Consequence

F8
NM_000132.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.372

Publications

9 publications found
Variant links:
Genes affected
F8 (HGNC:3546): (coagulation factor VIII) This gene encodes coagulation factor VIII, which participates in the intrinsic pathway of blood coagulation; factor VIII is a cofactor for factor IXa which, in the presence of Ca+2 and phospholipids, converts factor X to the activated form Xa. This gene produces two alternatively spliced transcripts. Transcript variant 1 encodes a large glycoprotein, isoform a, which circulates in plasma and associates with von Willebrand factor in a noncovalent complex. This protein undergoes multiple cleavage events. Transcript variant 2 encodes a putative small protein, isoform b, which consists primarily of the phospholipid binding domain of factor VIIIc. This binding domain is essential for coagulant activity. Defects in this gene results in hemophilia A, a common recessive X-linked coagulation disorder. [provided by RefSeq, Jul 2008]
F8 Gene-Disease associations (from GenCC):
  • hemophilia A
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
  • mild hemophilia A
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • moderately severe hemophilia A
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • severe hemophilia A
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • symptomatic form of hemophilia A in female carriers
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
This position, referring to a specific DNA site, is a probable branch point but rather VUS (scored 4 / 10). The score ranges from 0 to 10, with values ≤3 considered benign and >5 classified as pathogenic. Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant X-154966714-C-T is Benign according to our data. Variant chrX-154966714-C-T is described in ClinVar as [Benign]. Clinvar id is 439674.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.148 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
F8NM_000132.4 linkc.1010-27G>A intron_variant Intron 7 of 25 ENST00000360256.9 NP_000123.1 P00451-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
F8ENST00000360256.9 linkc.1010-27G>A intron_variant Intron 7 of 25 1 NM_000132.4 ENSP00000353393.4 P00451-1
F8ENST00000647125.1 linkn.*886-27G>A intron_variant Intron 8 of 13 ENSP00000496062.1 A0A2R8Y7J7
F8ENST00000483822.2 linkn.-198G>A upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.133
AC:
14755
AN:
111001
Hom.:
795
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.137
Gnomad AMI
AF:
0.129
Gnomad AMR
AF:
0.0971
Gnomad ASJ
AF:
0.0870
Gnomad EAS
AF:
0.0506
Gnomad SAS
AF:
0.0455
Gnomad FIN
AF:
0.133
Gnomad MID
AF:
0.0763
Gnomad NFE
AF:
0.151
Gnomad OTH
AF:
0.105
GnomAD2 exomes
AF:
0.123
AC:
22205
AN:
180431
AF XY:
0.114
show subpopulations
Gnomad AFR exome
AF:
0.143
Gnomad AMR exome
AF:
0.145
Gnomad ASJ exome
AF:
0.0723
Gnomad EAS exome
AF:
0.0479
Gnomad FIN exome
AF:
0.145
Gnomad NFE exome
AF:
0.143
Gnomad OTH exome
AF:
0.123
GnomAD4 exome
AF:
0.145
AC:
158283
AN:
1093869
Hom.:
8311
Cov.:
30
AF XY:
0.140
AC XY:
50380
AN XY:
360243
show subpopulations
African (AFR)
AF:
0.136
AC:
3590
AN:
26349
American (AMR)
AF:
0.139
AC:
4888
AN:
35143
Ashkenazi Jewish (ASJ)
AF:
0.0749
AC:
1450
AN:
19368
East Asian (EAS)
AF:
0.0745
AC:
2249
AN:
30193
South Asian (SAS)
AF:
0.0499
AC:
2698
AN:
54077
European-Finnish (FIN)
AF:
0.147
AC:
5684
AN:
38796
Middle Eastern (MID)
AF:
0.0751
AC:
310
AN:
4130
European-Non Finnish (NFE)
AF:
0.157
AC:
131532
AN:
839808
Other (OTH)
AF:
0.128
AC:
5882
AN:
46005
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
4472
8944
13417
17889
22361
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4854
9708
14562
19416
24270
<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:
0.133
AC:
14768
AN:
111059
Hom.:
798
Cov.:
22
AF XY:
0.122
AC XY:
4072
AN XY:
33295
show subpopulations
African (AFR)
AF:
0.137
AC:
4188
AN:
30573
American (AMR)
AF:
0.0974
AC:
1021
AN:
10485
Ashkenazi Jewish (ASJ)
AF:
0.0870
AC:
228
AN:
2622
East Asian (EAS)
AF:
0.0508
AC:
180
AN:
3545
South Asian (SAS)
AF:
0.0463
AC:
121
AN:
2611
European-Finnish (FIN)
AF:
0.133
AC:
788
AN:
5918
Middle Eastern (MID)
AF:
0.0787
AC:
17
AN:
216
European-Non Finnish (NFE)
AF:
0.151
AC:
7983
AN:
52903
Other (OTH)
AF:
0.103
AC:
155
AN:
1511
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
464
928
1393
1857
2321
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
160
320
480
640
800
<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:
0.143
Hom.:
4846
Bravo
AF:
0.133

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Jun 19, 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

- -

Hereditary factor VIII deficiency disease Benign:2
Aug 10, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 21, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
7.1
DANN
Benign
0.65
PhyloP100
0.37
BranchPoint Hunter
4.0
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: rs7058826; hg19: chrX-154194989; COSMIC: COSV64273834; COSMIC: COSV64273834; API