rs137852258

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_000133.4(F9):​c.1135C>A​(p.Arg379Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,098,182 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 9.1e-7 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

F9
NM_000133.4 synonymous

Scores

2

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 1.31

Publications

10 publications found
Variant links:
Genes affected
F9 (HGNC:3551): (coagulation factor IX) This gene encodes vitamin K-dependent coagulation factor IX that circulates in the blood as an inactive zymogen. This factor is converted to an active form by factor XIa, which excises the activation peptide and thus generates a heavy chain and a light chain held together by one or more disulfide bonds. The role of this activated factor IX in the blood coagulation cascade is to activate factor X to its active form through interactions with Ca+2 ions, membrane phospholipids, and factor VIII. Alterations of this gene, including point mutations, insertions and deletions, cause factor IX deficiency, which is a recessive X-linked disorder, also called hemophilia B or Christmas disease. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar proteolytic processing. [provided by RefSeq, Sep 2015]
F9 Gene-Disease associations (from GenCC):
  • hemophilia B
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
  • mild hemophilia B
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • moderately severe hemophilia B
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • severe hemophilia B
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • symptomatic form of hemophilia B in female carriers
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • thrombophilia, X-linked, due to factor 9 defect
    Inheritance: XL Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.26).
BP7
Synonymous conserved (PhyloP=1.31 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
F9NM_000133.4 linkc.1135C>A p.Arg379Arg synonymous_variant Exon 8 of 8 ENST00000218099.7 NP_000124.1 P00740-1
F9NM_001313913.2 linkc.1021C>A p.Arg341Arg synonymous_variant Exon 7 of 7 NP_001300842.1 P00740-2
F9XM_005262397.5 linkc.1006C>A p.Arg336Arg synonymous_variant Exon 7 of 7 XP_005262454.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
F9ENST00000218099.7 linkc.1135C>A p.Arg379Arg synonymous_variant Exon 8 of 8 1 NM_000133.4 ENSP00000218099.2 P00740-1
F9ENST00000394090.2 linkc.1021C>A p.Arg341Arg synonymous_variant Exon 7 of 7 1 ENSP00000377650.2 P00740-2
F9ENST00000643157.1 linkn.1723+79C>A intron_variant Intron 6 of 6

Frequencies

GnomAD3 genomes
AF:
0.00000895
AC:
1
AN:
111682
Hom.:
0
Cov.:
23
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
9.11e-7
AC:
1
AN:
1098182
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
363546
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26402
American (AMR)
AF:
0.00
AC:
0
AN:
35207
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19384
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30203
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54145
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40524
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4137
European-Non Finnish (NFE)
AF:
0.00000119
AC:
1
AN:
842089
Other (OTH)
AF:
0.00
AC:
0
AN:
46091
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000895
AC:
1
AN:
111682
Hom.:
0
Cov.:
23
AF XY:
0.0000295
AC XY:
1
AN XY:
33918
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30665
American (AMR)
AF:
0.00
AC:
0
AN:
10526
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2646
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3550
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2657
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6052
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
236
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53153
Other (OTH)
AF:
0.00
AC:
0
AN:
1514

Age Distribution

Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Hereditary factor IX deficiency disease Uncertain:1
Feb 16, 2025
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.26
CADD
Benign
5.7
DANN
Benign
0.58
PhyloP100
1.3

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: rs137852258; hg19: chrX-138643979; COSMIC: COSV99496357; API