rs773613916

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_000133.4(F9):​c.839-20dup variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.012 in 1,186,263 control chromosomes in the GnomAD database, including 74 homozygotes. There are 4,325 hemizygotes in GnomAD. Variant has been reported in ClinVar as Benign (★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.0078 ( 0 hom., 250 hem., cov: 23)
Exomes 𝑓: 0.012 ( 74 hom. 4075 hem. )

Consequence

F9
NM_000133.4 intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.270
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant X-139561500-T-TA is Benign according to our data. Variant chrX-139561500-T-TA is described in ClinVar as [Benign]. Clinvar id is 255227.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00785 (882/112371) while in subpopulation NFE AF= 0.0123 (654/53289). AF 95% confidence interval is 0.0115. There are 0 homozygotes in gnomad4. There are 250 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.
BS2
High Hemizygotes in GnomAd4 at 250 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
F9NM_000133.4 linkuse as main transcriptc.839-20dup intron_variant ENST00000218099.7 NP_000124.1
F9NM_001313913.2 linkuse as main transcriptc.725-20dup intron_variant NP_001300842.1
F9XM_005262397.5 linkuse as main transcriptc.710-20dup intron_variant XP_005262454.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
F9ENST00000218099.7 linkuse as main transcriptc.839-20dup intron_variant 1 NM_000133.4 ENSP00000218099 P1P00740-1
F9ENST00000394090.2 linkuse as main transcriptc.725-20dup intron_variant 1 ENSP00000377650 P00740-2
F9ENST00000643157.1 linkuse as main transcriptn.1506-20dup intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.00786
AC:
883
AN:
112313
Hom.:
0
Cov.:
23
AF XY:
0.00725
AC XY:
250
AN XY:
34473
show subpopulations
Gnomad AFR
AF:
0.00162
Gnomad AMI
AF:
0.0117
Gnomad AMR
AF:
0.00755
Gnomad ASJ
AF:
0.00754
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00260
Gnomad FIN
AF:
0.00736
Gnomad MID
AF:
0.0126
Gnomad NFE
AF:
0.0123
Gnomad OTH
AF:
0.0105
GnomAD3 exomes
AF:
0.00891
AC:
1545
AN:
173494
Hom.:
10
AF XY:
0.00918
AC XY:
547
AN XY:
59618
show subpopulations
Gnomad AFR exome
AF:
0.000543
Gnomad AMR exome
AF:
0.00832
Gnomad ASJ exome
AF:
0.00500
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00266
Gnomad FIN exome
AF:
0.00954
Gnomad NFE exome
AF:
0.0134
Gnomad OTH exome
AF:
0.0117
GnomAD4 exome
AF:
0.0124
AC:
13297
AN:
1073892
Hom.:
74
Cov.:
26
AF XY:
0.0119
AC XY:
4075
AN XY:
342576
show subpopulations
Gnomad4 AFR exome
AF:
0.00104
Gnomad4 AMR exome
AF:
0.00835
Gnomad4 ASJ exome
AF:
0.00612
Gnomad4 EAS exome
AF:
0.0000333
Gnomad4 SAS exome
AF:
0.00316
Gnomad4 FIN exome
AF:
0.00930
Gnomad4 NFE exome
AF:
0.0143
Gnomad4 OTH exome
AF:
0.0111
GnomAD4 genome
AF:
0.00785
AC:
882
AN:
112371
Hom.:
0
Cov.:
23
AF XY:
0.00724
AC XY:
250
AN XY:
34541
show subpopulations
Gnomad4 AFR
AF:
0.00161
Gnomad4 AMR
AF:
0.00754
Gnomad4 ASJ
AF:
0.00754
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00261
Gnomad4 FIN
AF:
0.00736
Gnomad4 NFE
AF:
0.0123
Gnomad4 OTH
AF:
0.0104
Alfa
AF:
0.00800
Hom.:
60
Bravo
AF:
0.00797

ClinVar

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

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BranchPoint Hunter
4.0

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: rs773613916; hg19: chrX-138643659; API