15-89273413-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_001113378.2(FANCI):​c.919C>T​(p.Pro307Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000945 in 1,608,652 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 28)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

FANCI
NM_001113378.2 missense

Scores

3
7
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.83
Variant links:
Genes affected
FANCI (HGNC:25568): (FA complementation group I) The Fanconi anemia complementation group (FANC) currently includes FANCA, FANCB, FANCC, FANCD1 (also called BRCA2), FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ (also called BRIP1), FANCL, FANCM and FANCN (also called PALB2). The previously defined group FANCH is the same as FANCA. Fanconi anemia is a genetically heterogeneous recessive disorder characterized by cytogenetic instability, hypersensitivity to DNA crosslinking agents, increased chromosomal breakage, and defective DNA repair. The members of the Fanconi anemia complementation group do not share sequence similarity; they are related by their assembly into a common nuclear protein complex. This gene encodes the protein for complementation group I. Alternative splicing results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14572021).
BS1
Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000101 (147/1458038) while in subpopulation EAS AF= 0.00363 (144/39634). AF 95% confidence interval is 0.00315. There are 0 homozygotes in gnomad4_exome. There are 65 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCINM_001113378.2 linkc.919C>T p.Pro307Ser missense_variant Exon 11 of 38 ENST00000310775.12 NP_001106849.1 Q9NVI1-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCIENST00000310775.12 linkc.919C>T p.Pro307Ser missense_variant Exon 11 of 38 1 NM_001113378.2 ENSP00000310842.8 Q9NVI1-3

Frequencies

GnomAD3 genomes
AF:
0.0000332
AC:
5
AN:
150614
Hom.:
0
Cov.:
28
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:
0.000971
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000717
AC:
18
AN:
250932
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135588
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000981
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000101
AC:
147
AN:
1458038
Hom.:
0
Cov.:
30
AF XY:
0.0000896
AC XY:
65
AN XY:
725552
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00363
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000332
AC:
5
AN:
150614
Hom.:
0
Cov.:
28
AF XY:
0.0000272
AC XY:
2
AN XY:
73474
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000971
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.0000906
AC:
11
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia complementation group I Uncertain:2
Apr 14, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 20, 2019
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The FANCI c.919C>T (p.Pro307Ser) variant is a missense variant. A literature search was performed for the gene, cDNA change, and amino acid change. No publications were found based on this search. This variant is found at a frequency of 0.000981 in the East Asian population of the Genome Aggregation Database. Based on the limited evidence, the p.Pro307Ser variant is classified as a variant of uncertain significance for Fanconi anemia. -

Fanconi anemia Uncertain:1
Dec 13, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 307 of the FANCI protein (p.Pro307Ser). This variant is present in population databases (rs769485443, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with FANCI-related conditions. ClinVar contains an entry for this variant (Variation ID: 575021). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt FANCI protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
0.0046
T
BayesDel_noAF
Pathogenic
0.18
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
.;T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.82
T;T
M_CAP
Benign
0.054
D
MetaRNN
Benign
0.15
T;T
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Benign
2.0
M;M
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-5.3
D;D
REVEL
Uncertain
0.47
Sift
Benign
0.042
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.96
D;P
Vest4
0.51
MutPred
0.38
Gain of disorder (P = 0.0769);Gain of disorder (P = 0.0769);
MVP
0.86
MPC
0.025
ClinPred
0.30
T
GERP RS
4.5
Varity_R
0.59
gMVP
0.66

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: rs769485443; hg19: chr15-89816644; COSMIC: COSV55529685; COSMIC: COSV55529685; API