rs143671872

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_000135.4(FANCA):​c.3430C>T​(p.Arg1144Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000787 in 1,614,000 control chromosomes in the GnomAD database, including 2 homozygotes. 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. R1144Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00082 ( 2 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

9
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:13B:2

Conservation

PhyloP100: 0.864

Publications

10 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_benign. The variant received -4 ACMG points.

BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000135.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FANCA
NM_000135.4
MANE Select
c.3430C>Tp.Arg1144Trp
missense
Exon 35 of 43NP_000126.2
FANCA
NM_001286167.3
c.3430C>Tp.Arg1144Trp
missense
Exon 35 of 43NP_001273096.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FANCA
ENST00000389301.8
TSL:1 MANE Select
c.3430C>Tp.Arg1144Trp
missense
Exon 35 of 43ENSP00000373952.3
FANCA
ENST00000564475.6
TSL:2
c.3430C>Tp.Arg1144Trp
missense
Exon 35 of 42ENSP00000454977.2
FANCA
ENST00000568369.6
TSL:2
c.3430C>Tp.Arg1144Trp
missense
Exon 35 of 43ENSP00000456829.1

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000911
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000525
AC:
132
AN:
251310
AF XY:
0.000501
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000260
Gnomad ASJ exome
AF:
0.000198
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000232
Gnomad NFE exome
AF:
0.000959
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000822
AC:
1202
AN:
1461800
Hom.:
2
Cov.:
32
AF XY:
0.000787
AC XY:
572
AN XY:
727198
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.000268
AC:
12
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.000115
AC:
3
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.000139
AC:
12
AN:
86256
European-Finnish (FIN)
AF:
0.000394
AC:
21
AN:
53362
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00100
AC:
1114
AN:
1111984
Other (OTH)
AF:
0.000596
AC:
36
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
68
136
205
273
341
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
46
92
138
184
230
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41446
American (AMR)
AF:
0.0000654
AC:
1
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000911
AC:
62
AN:
68036
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000702
Hom.:
1
Bravo
AF:
0.000453
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.00182
AC:
7
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00128
AC:
11
ExAC
AF:
0.000642
AC:
78
EpiCase
AF:
0.000491
EpiControl
AF:
0.000652

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
4
1
Fanconi anemia complementation group A (6)
-
4
-
not provided (4)
-
3
-
not specified (3)
-
1
1
Fanconi anemia (2)
-
1
-
FANCA-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Uncertain
0.020
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
T
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.86
D
M_CAP
Uncertain
0.23
D
MetaRNN
Uncertain
0.62
D
MetaSVM
Benign
-0.41
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
0.86
PrimateAI
Benign
0.25
T
PROVEAN
Uncertain
-4.2
D
REVEL
Uncertain
0.46
Sift
Uncertain
0.0090
D
Sift4G
Uncertain
0.022
D
Polyphen
1.0
D
Vest4
0.82
MVP
0.97
ClinPred
0.12
T
GERP RS
3.2
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
Varity_R
0.051
gMVP
0.31
Mutation Taster
=11/89
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
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

Other links and lift over

dbSNP: rs143671872; hg19: chr16-89813075; API