rs191202700

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001113378.2(FANCI):​c.3236C>T​(p.Thr1079Met) variant causes a missense change. The variant allele was found at a frequency of 0.000104 in 1,613,676 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

FANCI
NM_001113378.2 missense

Scores

2
11
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 6.04
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]
POLG (HGNC:9179): (DNA polymerase gamma, catalytic subunit) Mitochondrial DNA polymerase is heterotrimeric, consisting of a homodimer of accessory subunits plus a catalytic subunit. The protein encoded by this gene is the catalytic subunit of mitochondrial DNA polymerase. The encoded protein contains a polyglutamine tract near its N-terminus that may be polymorphic. Defects in this gene are a cause of progressive external ophthalmoplegia with mitochondrial DNA deletions 1 (PEOA1), sensory ataxic neuropathy dysarthria and ophthalmoparesis (SANDO), Alpers-Huttenlocher syndrome (AHS), and mitochondrial neurogastrointestinal encephalopathy syndrome (MNGIE). Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.03384784).
BP6
Variant 15-89305390-C-T is Benign according to our data. Variant chr15-89305390-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 238321.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}. Variant chr15-89305390-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCINM_001113378.2 linkc.3236C>T p.Thr1079Met missense_variant Exon 30 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.3236C>T p.Thr1079Met missense_variant Exon 30 of 38 1 NM_001113378.2 ENSP00000310842.8 Q9NVI1-3

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00212
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:
0.000306
AC:
77
AN:
251266
Hom.:
0
AF XY:
0.000280
AC XY:
38
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.000618
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00266
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000910
AC:
133
AN:
1461420
Hom.:
0
Cov.:
32
AF XY:
0.0000880
AC XY:
64
AN XY:
727008
show subpopulations
Gnomad4 AFR exome
AF:
0.000837
Gnomad4 AMR exome
AF:
0.000358
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00166
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152256
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.000385
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00212
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000796
Hom.:
0
Bravo
AF:
0.000264
ExAC
AF:
0.000296
AC:
36
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Fanconi anemia complementation group I Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Fanconi anemia Benign:1
Jan 10, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

FANCI-related disorder Benign:1
Mar 14, 2023
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Uncertain
-0.040
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.58
.;D
Eigen
Uncertain
0.23
Eigen_PC
Benign
0.19
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Pathogenic
0.39
D
MetaRNN
Benign
0.034
T;T
MetaSVM
Uncertain
0.62
D
MutationAssessor
Uncertain
2.8
.;M
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-4.1
D;D
REVEL
Uncertain
0.63
Sift
Benign
0.032
D;D
Sift4G
Uncertain
0.044
D;D
Polyphen
1.0
D;P
Vest4
0.49
MVP
0.95
MPC
0.044
ClinPred
0.097
T
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.53
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs191202700; hg19: chr15-89848621; COSMIC: COSV55524801; COSMIC: COSV55524801; API