2-162171028-T-A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_004460.5(FAP):​c.2234A>T​(p.Tyr745Phe) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,613,210 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 1 hom. )

Consequence

FAP
NM_004460.5 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.69

Publications

0 publications found
Variant links:
Genes affected
FAP (HGNC:3590): (fibroblast activation protein alpha) The protein encoded by this gene is a homodimeric integral membrane gelatinase belonging to the serine protease family. It is selectively expressed in reactive stromal fibroblasts of epithelial cancers, granulation tissue of healing wounds, and malignant cells of bone and soft tissue sarcomas. This protein is thought to be involved in the control of fibroblast growth or epithelial-mesenchymal interactions during development, tissue repair, and epithelial carcinogenesis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3151378).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FAPNM_004460.5 linkc.2234A>T p.Tyr745Phe missense_variant Exon 26 of 26 ENST00000188790.9 NP_004451.2 Q12884-1
FAPNM_001291807.3 linkc.2159A>T p.Tyr720Phe missense_variant Exon 25 of 25 NP_001278736.1 Q12884B4DLR2
FAPXM_011510796.4 linkc.2204A>T p.Tyr735Phe missense_variant Exon 25 of 25 XP_011509098.1
LOC101929532NR_110255.1 linkn.1898T>A non_coding_transcript_exon_variant Exon 4 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FAPENST00000188790.9 linkc.2234A>T p.Tyr745Phe missense_variant Exon 26 of 26 1 NM_004460.5 ENSP00000188790.4 Q12884-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000590
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251126
AF XY:
0.0000516
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
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
AF:
0.0000144
AC:
21
AN:
1461072
Hom.:
1
Cov.:
30
AF XY:
0.0000234
AC XY:
17
AN XY:
726826
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33428
American (AMR)
AF:
0.0000671
AC:
3
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26102
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.000174
AC:
15
AN:
86232
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111400
Other (OTH)
AF:
0.00
AC:
0
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.000590
AC:
9
AN:
15254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.00
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jan 26, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2234A>T (p.Y745F) alteration is located in exon 26 (coding exon 26) of the FAP gene. This alteration results from a A to T substitution at nucleotide position 2234, causing the tyrosine (Y) at amino acid position 745 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
26
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
.;T;.
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T;T;T
M_CAP
Benign
0.0092
T
MetaRNN
Benign
0.32
T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.8
.;L;.
PhyloP100
5.7
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-3.2
.;D;D
REVEL
Benign
0.20
Sift
Benign
0.054
.;T;T
Sift4G
Benign
0.077
T;T;T
Polyphen
0.94, 0.20
.;P;B
Vest4
0.38
MutPred
0.68
.;Loss of disorder (P = 0.1608);.;
MVP
0.54
MPC
0.16
ClinPred
0.20
T
GERP RS
5.6
Varity_R
0.53
gMVP
0.44
Mutation Taster
=76/24
polymorphism

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

Other links and lift over

dbSNP: rs769339096; hg19: chr2-163027538; API