rs755922289

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_ModeratePP5_Moderate

The NM_000135.4(FANCA):​c.2852G>T​(p.Arg951Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R951Q) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

FANCA
NM_000135.4 missense, splice_region

Scores

8
8
2
Splicing: ADA: 0.9988
2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 2.65
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 Likely_pathogenic. Variant got 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 chr16-89761949-C-T is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.919
PP5
Variant 16-89761949-C-A is Pathogenic according to our data. Variant chr16-89761949-C-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3581489.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FANCANM_000135.4 linkc.2852G>T p.Arg951Leu missense_variant, splice_region_variant 29/43 ENST00000389301.8 NP_000126.2 O15360-1
FANCANM_001286167.3 linkc.2852G>T p.Arg951Leu missense_variant, splice_region_variant 29/43 NP_001273096.1 O15360-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FANCAENST00000389301.8 linkc.2852G>T p.Arg951Leu missense_variant, splice_region_variant 29/431 NM_000135.4 ENSP00000373952.3 O15360-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
32
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
GnomAD4 exome
Cov.:
30
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74284
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
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:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Fanconi anemia complementation group A Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.79
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.69
D;.
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Pathogenic
0.59
D
MetaRNN
Pathogenic
0.92
D;D
MetaSVM
Uncertain
0.73
D
PrimateAI
Benign
0.40
T
PROVEAN
Pathogenic
-5.5
D;D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0020
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.82
MutPred
0.53
Loss of disorder (P = 0.068);Loss of disorder (P = 0.068);
MVP
0.97
ClinPred
0.98
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.70
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.95
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: rs755922289; hg19: chr16-89828357; API