9-134909808-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002003.5(FCN1):​c.971G>A​(p.Arg324Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000384 in 1,613,344 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

FCN1
NM_002003.5 missense

Scores

5
8
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.20
Variant links:
Genes affected
FCN1 (HGNC:3623): (ficolin 1) The ficolin family of proteins are characterized by the presence of a leader peptide, a short N-terminal segment, followed by a collagen-like region, and a C-terminal fibrinogen-like domain. The collagen-like and the fibrinogen-like domains are also found separately in other proteins such as complement protein C1q, C-type lectins known as collectins, and tenascins. However, all these proteins recognize different targets, and are functionally distinct. Ficolin 1 encoded by FCN1 is predominantly expressed in the peripheral blood leukocytes, and has been postulated to function as a plasma protein with elastin-binding activity. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.959

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FCN1NM_002003.5 linkuse as main transcriptc.971G>A p.Arg324Gln missense_variant 9/9 ENST00000371806.4 NP_001994.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FCN1ENST00000371806.4 linkuse as main transcriptc.971G>A p.Arg324Gln missense_variant 9/91 NM_002003.5 ENSP00000360871 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152032
Hom.:
0
Cov.:
31
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250746
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135610
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000417
AC:
61
AN:
1461312
Hom.:
0
Cov.:
36
AF XY:
0.0000495
AC XY:
36
AN XY:
727004
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000513
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152032
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74264
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 25, 2023The c.971G>A (p.R324Q) alteration is located in exon 9 (coding exon 9) of the FCN1 gene. This alteration results from a G to A substitution at nucleotide position 971, causing the arginine (R) at amino acid position 324 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
-0.010
CADD
Benign
23
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.21
T
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.82
T
M_CAP
Pathogenic
0.65
D
MetaRNN
Pathogenic
0.96
D
MetaSVM
Uncertain
0.60
D
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-3.0
D
REVEL
Pathogenic
0.73
Sift
Benign
0.031
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.78
MVP
0.94
MPC
0.52
ClinPred
0.95
D
GERP RS
3.1
Varity_R
0.38
gMVP
0.82

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: rs371244932; hg19: chr9-137801654; COSMIC: COSV65661903; API