16-89816614-A-T

Variant summary

Our verdict is Pathogenic. Variant got 20 ACMG points: 20P and 0B. PVS1PS1_ModeratePM2PP5_Very_Strong

The ENST00000389301.8(FANCA):​c.2T>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000729 in 1,372,296 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 Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

FANCA
ENST00000389301.8 start_lost

Scores

5
5
6

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 1.06
Variant links:
Genes affected
FANCA (HGNC:3582): (FA complementation group A) 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 A. Alternative splicing results in multiple transcript variants encoding different isoforms. Mutations in this gene are the most common cause of Fanconi anemia. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 20 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PS1
Another start lost variant in ENST00000389301.8 (FANCA) was described as [Conflicting_classifications_of_pathogenicity] in ClinVar as 555802
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-89816614-A-T is Pathogenic according to our data. Variant chr16-89816614-A-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 556239.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FANCANM_000135.4 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/43 ENST00000389301.8 NP_000126.2
FANCANM_001286167.3 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/43 NP_001273096.1
FANCANM_001018112.3 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/11 NP_001018122.1
FANCANM_001351830.2 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/10 NP_001338759.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FANCAENST00000389301.8 linkuse as main transcriptc.2T>A p.Met1? start_lost 1/431 NM_000135.4 ENSP00000373952 P1O15360-1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000829
AC:
1
AN:
120628
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67104
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000211
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.29e-7
AC:
1
AN:
1372296
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
677952
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:
9.30e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34
Alfa
AF:
0.0000435
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia complementation group A Pathogenic:2
Likely pathogenic, criteria provided, single submitterclinical testingCounsylJan 22, 2018- -
Pathogenic, criteria provided, single submitterclinical testingInstitute of Medical Genetics and Applied Genomics, University Hospital TübingenJun 26, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.11
CADD
Benign
18
DANN
Benign
0.94
DEOGEN2
Benign
0.091
T;.;.;T;T;.
Eigen
Benign
0.037
Eigen_PC
Benign
-0.089
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
D;D;D;D;D;D
M_CAP
Pathogenic
0.99
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D;D
MetaSVM
Uncertain
0.35
D
MutationTaster
Benign
1.0
D;D;D;D
PROVEAN
Benign
-0.95
N;N;N;N;N;N
REVEL
Uncertain
0.44
Sift
Pathogenic
0.0
D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D
Polyphen
0.99
D;.;.;.;D;D
Vest4
0.85
MutPred
0.99
Gain of ubiquitination at M1 (P = 0.0117);Gain of ubiquitination at M1 (P = 0.0117);Gain of ubiquitination at M1 (P = 0.0117);Gain of ubiquitination at M1 (P = 0.0117);Gain of ubiquitination at M1 (P = 0.0117);Gain of ubiquitination at M1 (P = 0.0117);
MVP
0.91
ClinPred
0.99
D
GERP RS
4.3
Varity_R
0.96
gMVP
0.34

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: rs769479800; hg19: chr16-89883022; API