rs4314418

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBS1BS2

The NM_000505.4(F12):​c.57+46G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0185 in 1,599,702 control chromosomes in the GnomAD database, including 372 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.013 ( 21 hom., cov: 32)
Exomes 𝑓: 0.019 ( 351 hom. )

Consequence

F12
NM_000505.4 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.338
Variant links:
Genes affected
F12 (HGNC:3530): (coagulation factor XII) This gene encodes coagulation factor XII which circulates in blood as a zymogen. This single chain zymogen is converted to a two-chain serine protease with an heavy chain (alpha-factor XIIa) and a light chain. The heavy chain contains two fibronectin-type domains, two epidermal growth factor (EGF)-like domains, a kringle domain and a proline-rich domain, whereas the light chain contains only a catalytic domain. On activation, further cleavages takes place in the heavy chain, resulting in the production of beta-factor XIIa light chain and the alpha-factor XIIa light chain becomes beta-factor XIIa heavy chain. Prekallikrein is cleaved by factor XII to form kallikrein, which then cleaves factor XII first to alpha-factor XIIa and then to beta-factor XIIa. The active factor XIIa participates in the initiation of blood coagulation, fibrinolysis, and the generation of bradykinin and angiotensin. It activates coagulation factors VII and XI. Defects in this gene do not cause any clinical symptoms and the sole effect is that whole-blood clotting time is prolonged. [provided by RefSeq, Jul 2008]
GRK6 (HGNC:4545): (G protein-coupled receptor kinase 6) This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family. The protein phosphorylates the activated forms of G protein-coupled receptors thus initiating their deactivation. Several transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0126 (1921/152128) while in subpopulation SAS AF= 0.0383 (184/4810). AF 95% confidence interval is 0.0337. There are 21 homozygotes in gnomad4. There are 931 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 21 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
F12NM_000505.4 linkc.57+46G>T intron_variant ENST00000253496.4 NP_000496.2 P00748Q8IZZ5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
F12ENST00000253496.4 linkc.57+46G>T intron_variant 1 NM_000505.4 ENSP00000253496.3 P00748

Frequencies

GnomAD3 genomes
AF:
0.0126
AC:
1922
AN:
152010
Hom.:
21
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00329
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.0113
Gnomad ASJ
AF:
0.0170
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.0384
Gnomad FIN
AF:
0.00349
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0190
Gnomad OTH
AF:
0.0158
GnomAD3 exomes
AF:
0.0159
AC:
3944
AN:
247468
Hom.:
60
AF XY:
0.0179
AC XY:
2393
AN XY:
133788
show subpopulations
Gnomad AFR exome
AF:
0.00329
Gnomad AMR exome
AF:
0.00572
Gnomad ASJ exome
AF:
0.0140
Gnomad EAS exome
AF:
0.000164
Gnomad SAS exome
AF:
0.0399
Gnomad FIN exome
AF:
0.00514
Gnomad NFE exome
AF:
0.0192
Gnomad OTH exome
AF:
0.0157
GnomAD4 exome
AF:
0.0191
AC:
27703
AN:
1447574
Hom.:
351
Cov.:
29
AF XY:
0.0197
AC XY:
14213
AN XY:
720676
show subpopulations
Gnomad4 AFR exome
AF:
0.00256
Gnomad4 AMR exome
AF:
0.00647
Gnomad4 ASJ exome
AF:
0.0134
Gnomad4 EAS exome
AF:
0.0000505
Gnomad4 SAS exome
AF:
0.0385
Gnomad4 FIN exome
AF:
0.00506
Gnomad4 NFE exome
AF:
0.0202
Gnomad4 OTH exome
AF:
0.0171
GnomAD4 genome
AF:
0.0126
AC:
1921
AN:
152128
Hom.:
21
Cov.:
32
AF XY:
0.0125
AC XY:
931
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.00328
Gnomad4 AMR
AF:
0.0113
Gnomad4 ASJ
AF:
0.0170
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.0383
Gnomad4 FIN
AF:
0.00349
Gnomad4 NFE
AF:
0.0190
Gnomad4 OTH
AF:
0.0156
Alfa
AF:
0.0163
Hom.:
3
Bravo
AF:
0.0124
Asia WGS
AF:
0.0150
AC:
53
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
2.8
DANN
Benign
0.72

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: rs4314418; hg19: chr5-176836426; API