X-154896102-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BS2_Supporting

The NM_000132.4(F8):​c.6404G>A​(p.Arg2135Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000993 in 1,208,355 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 22)
Exomes 𝑓: 0.0000091 ( 0 hom. 3 hem. )

Consequence

F8
NM_000132.4 missense

Scores

2
4
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.87
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BS2
High Hemizygotes in GnomAdExome4 at 3 XL geneVariant has number of hemizygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
F8NM_000132.4 linkuse as main transcriptc.6404G>A p.Arg2135Gln missense_variant 22/26 ENST00000360256.9 NP_000123.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
F8ENST00000360256.9 linkuse as main transcriptc.6404G>A p.Arg2135Gln missense_variant 22/261 NM_000132.4 ENSP00000353393 P1P00451-1

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
111360
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33556
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000377
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000164
AC:
3
AN:
183117
Hom.:
0
AF XY:
0.0000148
AC XY:
1
AN XY:
67591
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:
0.0000524
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000244
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000912
AC:
10
AN:
1096995
Hom.:
0
Cov.:
30
AF XY:
0.00000828
AC XY:
3
AN XY:
362387
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:
0.0000924
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000476
Gnomad4 OTH exome
AF:
0.0000217
GnomAD4 genome
AF:
0.0000180
AC:
2
AN:
111360
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33556
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000377
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.85
D
FATHMM_MKL
Benign
0.72
D
LIST_S2
Benign
0.80
T
M_CAP
Pathogenic
0.82
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Uncertain
0.54
D
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
0.71
N
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-2.0
N
REVEL
Uncertain
0.42
Sift
Benign
0.14
T
Sift4G
Benign
0.20
T
Polyphen
0.95
P
Vest4
0.083
MutPred
0.66
Gain of ubiquitination at K2130 (P = 0.0505);
MVP
0.93
MPC
1.2
ClinPred
0.63
D
GERP RS
3.9
Varity_R
0.40
gMVP
0.90

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.

Other links and lift over

dbSNP: rs137852366; hg19: chrX-154124377; COSMIC: COSV64273758; COSMIC: COSV64273758; API