rs307821

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_182925.5(FLT4):​c.3971G>T​(p.Arg1324Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0968 in 1,613,696 control chromosomes in the GnomAD database, including 8,130 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1324P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.081 ( 567 hom., cov: 33)
Exomes 𝑓: 0.099 ( 7563 hom. )

Consequence

FLT4
NM_182925.5 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.34

Publications

49 publications found
Variant links:
Genes affected
FLT4 (HGNC:3767): (fms related receptor tyrosine kinase 4) This gene encodes a tyrosine kinase receptor for vascular endothelial growth factors C and D. The protein is thought to be involved in lymphangiogenesis and maintenance of the lymphatic endothelium. Mutations in this gene cause hereditary lymphedema type IA. [provided by RefSeq, Jul 2008]
FLT4 Gene-Disease associations (from GenCC):
  • lymphatic malformation 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • capillary infantile hemangioma
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • congenital heart defects, multiple types, 7
    Inheritance: AD Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • lymphatic malformation
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • tetralogy of fallot
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0015855432).
BP6
Variant 5-180603313-C-A is Benign according to our data. Variant chr5-180603313-C-A is described in ClinVar as Benign. ClinVar VariationId is 263057.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.105 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLT4NM_182925.5 linkc.3971G>T p.Arg1324Leu missense_variant Exon 30 of 30 ENST00000261937.11 NP_891555.2 P35916-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLT4ENST00000261937.11 linkc.3971G>T p.Arg1324Leu missense_variant Exon 30 of 30 1 NM_182925.5 ENSP00000261937.6 P35916-2
FLT4ENST00000502603.5 linkn.671G>T non_coding_transcript_exon_variant Exon 4 of 4 2

Frequencies

GnomAD3 genomes
AF:
0.0806
AC:
12274
AN:
152246
Hom.:
567
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0512
Gnomad AMI
AF:
0.297
Gnomad AMR
AF:
0.0613
Gnomad ASJ
AF:
0.111
Gnomad EAS
AF:
0.000576
Gnomad SAS
AF:
0.0409
Gnomad FIN
AF:
0.0860
Gnomad MID
AF:
0.0823
Gnomad NFE
AF:
0.107
Gnomad OTH
AF:
0.0755
GnomAD2 exomes
AF:
0.0786
AC:
19397
AN:
246898
AF XY:
0.0794
show subpopulations
Gnomad AFR exome
AF:
0.0535
Gnomad AMR exome
AF:
0.0448
Gnomad ASJ exome
AF:
0.0986
Gnomad EAS exome
AF:
0.000656
Gnomad FIN exome
AF:
0.0940
Gnomad NFE exome
AF:
0.110
Gnomad OTH exome
AF:
0.0845
GnomAD4 exome
AF:
0.0985
AC:
143954
AN:
1461332
Hom.:
7563
Cov.:
32
AF XY:
0.0968
AC XY:
70361
AN XY:
726924
show subpopulations
African (AFR)
AF:
0.0525
AC:
1759
AN:
33474
American (AMR)
AF:
0.0471
AC:
2104
AN:
44694
Ashkenazi Jewish (ASJ)
AF:
0.101
AC:
2638
AN:
26112
East Asian (EAS)
AF:
0.000353
AC:
14
AN:
39684
South Asian (SAS)
AF:
0.0465
AC:
4006
AN:
86194
European-Finnish (FIN)
AF:
0.0925
AC:
4934
AN:
53314
Middle Eastern (MID)
AF:
0.0644
AC:
370
AN:
5748
European-Non Finnish (NFE)
AF:
0.110
AC:
122806
AN:
1111770
Other (OTH)
AF:
0.0882
AC:
5323
AN:
60342
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
7629
15258
22888
30517
38146
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4388
8776
13164
17552
21940
<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:
0.0806
AC:
12283
AN:
152364
Hom.:
567
Cov.:
33
AF XY:
0.0790
AC XY:
5889
AN XY:
74512
show subpopulations
African (AFR)
AF:
0.0513
AC:
2135
AN:
41586
American (AMR)
AF:
0.0612
AC:
936
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.111
AC:
386
AN:
3472
East Asian (EAS)
AF:
0.000578
AC:
3
AN:
5192
South Asian (SAS)
AF:
0.0408
AC:
197
AN:
4832
European-Finnish (FIN)
AF:
0.0860
AC:
914
AN:
10624
Middle Eastern (MID)
AF:
0.0884
AC:
26
AN:
294
European-Non Finnish (NFE)
AF:
0.107
AC:
7258
AN:
68032
Other (OTH)
AF:
0.0747
AC:
158
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
601
1203
1804
2406
3007
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
128
256
384
512
640
<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:
0.0952
Hom.:
1219
Bravo
AF:
0.0794
TwinsUK
AF:
0.119
AC:
442
ALSPAC
AF:
0.107
AC:
413
ESP6500AA
AF:
0.0522
AC:
230
ESP6500EA
AF:
0.109
AC:
934
ExAC
AF:
0.0803
AC:
9752
EpiCase
AF:
0.111
EpiControl
AF:
0.108

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jan 19, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.69
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
0.0060
DANN
Benign
0.39
DEOGEN2
Benign
0.078
T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.034
N
LIST_S2
Benign
0.57
T
MetaRNN
Benign
0.0016
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.20
N
PhyloP100
-1.3
PrimateAI
Benign
0.24
T
PROVEAN
Benign
0.12
N
REVEL
Benign
0.068
Sift
Benign
0.65
T
Sift4G
Benign
0.66
T
Polyphen
0.0
B
Vest4
0.023
MPC
0.14
ClinPred
0.00030
T
GERP RS
-8.8
Varity_R
0.029
gMVP
0.13
Mutation Taster
=95/5
polymorphism (auto)

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: rs307821; hg19: chr5-180030313; COSMIC: COSV56108334; COSMIC: COSV56108334; API