Genetic Variant FLT4:c.2761+44G>C (chr5-180619209-C-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_182925.5(FLT4):c.2761+44G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000976 in 1,434,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

FLT4
NM_182925.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.99

Publications

7 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

FLT4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLT4	NM_182925.5 link	c.2761+44G>C		intron_variant	Intron 19 of 29	ENST00000261937.11	NP_891555.2	P35916-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FLT4	ENST00000261937.11 link	c.2761+44G>C		intron_variant	Intron 19 of 29	1	NM_182925.5	ENSP00000261937.6		P35916-2

Frequencies

GnomAD3 genomes

AF:

0.00000666

AC:

AN:

150234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000155

AC:

AN:

128860

AF XY:

0.0000270

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000332

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000101

AC:

AN:

1284708

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

633880

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25538

American (AMR)

AF:

0.00

AC:

AN:

25116

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20762

East Asian (EAS)

AF:

0.00

AC:

AN:

28284

South Asian (SAS)

AF:

0.00

AC:

AN:

65608

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4598

European-Non Finnish (NFE)

AF:

0.0000118

AC:

AN:

1018994

Other (OTH)

AF:

0.0000194

AC:

AN:

51440

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.00000666

AC:

AN:

150234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73340

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41164

American (AMR)

AF:

0.00

AC:

AN:

15096

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3460

East Asian (EAS)

AF:

0.00

AC:

AN:

5112

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9798

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

67484

Other (OTH)

AF:

0.00

AC:

AN:

2070

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

3383

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.18

(source)

DANN

Benign

0.22

PhyloP100

-3.0

PromoterAI

0.029

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over