rs1429943036

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_000135.4(FANCA):​c.3164G>T​(p.Arg1055Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,178 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1055Q) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

FANCA
NM_000135.4 missense

Scores

7
9
3

Clinical Significance

Conflicting classifications of pathogenicity no assertion criteria provided P:1U:1

Conservation

PhyloP100: 3.77

Publications

3 publications found
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]
FANCA Gene-Disease associations (from GenCC):
  • Fanconi anemia complementation group A
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, G2P
  • Fanconi anemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr16-89749805-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 974257.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.987

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCANM_000135.4 linkc.3164G>T p.Arg1055Leu missense_variant Exon 32 of 43 ENST00000389301.8 NP_000126.2 O15360-1
FANCANM_001286167.3 linkc.3164G>T p.Arg1055Leu missense_variant Exon 32 of 43 NP_001273096.1 O15360-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCAENST00000389301.8 linkc.3164G>T p.Arg1055Leu missense_variant Exon 32 of 43 1 NM_000135.4 ENSP00000373952.3 O15360-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251416
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
32
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Fanconi anemia complementation group A Pathogenic:1Uncertain:1
Jan 29, 2018
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Feb 28, 2020
Leiden Open Variation Database
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:curation

Curator: Arleen D. Auerbach. Submitter to LOVD: Arleen D. Auerbach. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.33
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;.
Eigen
Uncertain
0.35
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.85
T;T
M_CAP
Pathogenic
0.67
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Uncertain
0.74
D
MutationAssessor
Uncertain
2.1
M;M
PhyloP100
3.8
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-4.8
D;D
REVEL
Pathogenic
0.78
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
1.0
D;.
Vest4
0.84
MutPred
0.88
Loss of MoRF binding (P = 0.0441);Loss of MoRF binding (P = 0.0441);
MVP
0.97
ClinPred
0.97
D
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.52
gMVP
0.73
Mutation Taster
=18/82
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1429943036; hg19: chr16-89816213; API