9-134912512-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_002003.5(FCN1):ā€‹c.572A>Gā€‹(p.Asp191Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,768 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 (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

FCN1
NM_002003.5 missense

Scores

3
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.78
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.807

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FCN1NM_002003.5 linkuse as main transcriptc.572A>G p.Asp191Gly missense_variant 7/9 ENST00000371806.4 NP_001994.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FCN1ENST00000371806.4 linkuse as main transcriptc.572A>G p.Asp191Gly missense_variant 7/91 NM_002003.5 ENSP00000360871 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461768
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
727200
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 07, 2022The c.572A>G (p.D191G) alteration is located in exon 7 (coding exon 7) of the FCN1 gene. This alteration results from a A to G substitution at nucleotide position 572, causing the aspartic acid (D) at amino acid position 191 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.011
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.38
Eigen_PC
Benign
0.22
FATHMM_MKL
Benign
0.32
N
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.033
D
MetaRNN
Pathogenic
0.81
D
MetaSVM
Benign
-0.80
T
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.42
T
PROVEAN
Pathogenic
-5.8
D
REVEL
Benign
0.25
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0020
D
Polyphen
0.99
D
Vest4
0.54
MutPred
0.66
Loss of stability (P = 0.0235);
MVP
0.62
MPC
0.60
ClinPred
0.96
D
GERP RS
3.6
Varity_R
0.57
gMVP
0.63

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: rs756450443; hg19: chr9-137804358; API