rs114549781

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_001113378.2(FANCI):c.3865A>G(p.Ile1289Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000283 in 1,614,050 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 31)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

FANCI
NM_001113378.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 8.87

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]

FANCI links:

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]

POLG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.028419763).

BP6

Variant 15-89315330-A-G is Benign according to our data. Variant chr15-89315330-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 456219.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00143 (218/152260) while in subpopulation AFR AF= 0.00469 (195/41540). AF 95% confidence interval is 0.00416. There are 1 homozygotes in gnomad4. There are 98 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCI	NM_001113378.2 link	c.3865A>G	p.Ile1289Val	missense_variant	Exon 37 of 38	ENST00000310775.12	NP_001106849.1	Q9NVI1-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCI	ENST00000310775.12 link	c.3865A>G	p.Ile1289Val	missense_variant	Exon 37 of 38	1	NM_001113378.2	ENSP00000310842.8		Q9NVI1-3

Frequencies

GnomAD3 genomes

AF:

0.00143

AC:

218

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00471

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

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:

0.0000441

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.000350

AC:

AN:

251470

Hom.:

AF XY:

0.000250

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.00400

Gnomad AMR exome

AF:

0.000491

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:

0.0000264

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000163

AC:

238

AN:

1461790

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00421

Gnomad4 AMR exome

AF:

0.000537

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:

0.0000477

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.00143

AC:

218

AN:

152260

Hom.:

Cov.:

AF XY:

0.00132

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.00469

Gnomad4 AMR

AF:

0.000915

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.000255

Hom.:

Bravo

AF:

0.00157

ESP6500AA

AF:

0.00523

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000387

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Fanconi anemia

Benign:2

Dec 30, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 30, 2021

Sema4, Sema4

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: curation

- -

not specified

Benign:1

Dec 12, 2019

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: FANCI c.3865A>G (p.Ile1289Val) results in a conservative amino acid change located in the FANCI solenoid 4 domain (IPR029314) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00035 in 251470 control chromosomes, predominantly at a frequency of 0.004 within the African or African-American subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 14 fold of the estimated maximal expected allele frequency for a pathogenic variant in FANCI causing Fanconi anemia phenotype (0.00028), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.3865A>G in individuals affected with Fanconi anemia, complementation group I and no experimental evidence demonstrating its impact on protein function have been reported. One ClinVar submitter (evaluation after 2014) cites the variant as benign. Based on the evidence outlined above, the variant was classified as benign. -

not provided

Benign:1

Oct 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

FANCI: BS2 -

Fanconi anemia complementation group I

Benign:1

Feb 01, 2025

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

FANCI-related disorder

Benign:1

Oct 28, 2020

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

Pathogenic

0.67

BayesDel_addAF

Benign

-0.037

BayesDel_noAF

Pathogenic

0.17

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.32

.;T

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

D;D

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.028

T;T

MetaSVM

Uncertain

0.72

MutationAssessor

Uncertain

2.8

.;M

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-0.84

N;N

REVEL

Pathogenic

0.69

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.72

MVP

0.97

MPC

0.12

ClinPred

0.053

GERP RS

5.8

Varity_R

0.69

gMVP

0.36

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over