dbSNP rs761346761: FANCB:p.Ile67Val (chrX-14865312-T-C) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001018113.3(FANCB):c.199A>G(p.Ile67Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 1,168,081 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.000030 ( 0 hom. 7 hem. )

Consequence

FANCB
NM_001018113.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.959

Variant links:

Genes affected

FANCB (HGNC:3583): (FA complementation group B) This gene encodes a member of the Fanconi anemia complementation group B. This protein is assembled into a nucleoprotein complex that is involved in the repair of DNA lesions. Mutations in this gene can cause chromosome instability and VACTERL syndrome with hydrocephalus. [provided by RefSeq, Apr 2016]

FANCB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.05709061).

BP6

Variant X-14865312-T-C is Benign according to our data. Variant chrX-14865312-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 456180.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BS2

High Hemizygotes in GnomAdExome4 at 7 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCB	NM_001018113.3 link	c.199A>G	p.Ile67Val	missense_variant	Exon 3 of 10	ENST00000650831.1	NP_001018123.1	Q8NB91A0A024RBW1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCB	ENST00000650831.1 link	c.199A>G	p.Ile67Val	missense_variant	Exon 3 of 10		NM_001018113.3	ENSP00000498215.1		Q8NB91

Frequencies

GnomAD3 genomes

AF:

0.0000178

AC:

AN:

112425

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

34583

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000942

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:

0.00

Gnomad OTH

AF:

0.000657

GnomAD3 exomes

AF:

0.0000202

AC:

AN:

148467

Hom.:

AF XY:

0.00

AC XY:

AN XY:

49189

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000527

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:

0.0000283

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000303

AC:

AN:

1055656

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

340050

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000380

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:

0.0000364

Gnomad4 OTH exome

AF:

0.0000226

GnomAD4 genome

AF:

0.0000178

AC:

AN:

112425

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

34583

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000942

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000657

Bravo

AF:

0.00000756

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000346

AC:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fanconi anemia complementation group B;C2931228:VACTERL association, X-linked, with or without hydrocephalus

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Fanconi anemia

Benign:1

Oct 18, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-1.0

CADD

Benign

0.19

DANN

Benign

0.64

DEOGEN2

Benign

0.097

T;T;T

FATHMM_MKL

Benign

0.092

LIST_S2

Benign

0.54

T;.;T

M_CAP

Benign

0.0079

MetaRNN

Benign

0.057

T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.3

L;L;.

PrimateAI

Benign

0.30

PROVEAN

Benign

-0.46

N;N;N

REVEL

Benign

0.0090

Sift

Benign

0.32

T;T;T

Sift4G

Benign

0.34

T;T;T

Polyphen

0.0010

B;B;.

Vest4

0.11

MutPred

0.24

Gain of methylation at K68 (P = 0.0548);Gain of methylation at K68 (P = 0.0548);Gain of methylation at K68 (P = 0.0548);

MVP

0.12

MPC

0.083

ClinPred

0.081

GERP RS

-3.5

Varity_R

0.047

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