Genetic Variant NM_002253.4:c.3773C>A (chr4-55082031-G-T) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS2_Supporting

The NM_002253.4(KDR):c.3773C>A(p.Thr1258Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,460,122 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1258M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

KDR
NM_002253.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.43

Publications

0 publications found

Variant links:

Genes affected

KDR (HGNC:6307): (kinase insert domain receptor) Vascular endothelial growth factor (VEGF) is a major growth factor for endothelial cells. This gene encodes one of the two receptors of the VEGF. This receptor, known as kinase insert domain receptor, is a type III receptor tyrosine kinase. It functions as the main mediator of VEGF-induced endothelial proliferation, survival, migration, tubular morphogenesis and sprouting. The signalling and trafficking of this receptor are regulated by multiple factors, including Rab GTPase, P2Y purine nucleotide receptor, integrin alphaVbeta3, T-cell protein tyrosine phosphatase, etc.. Mutations of this gene are implicated in infantile capillary hemangiomas. [provided by RefSeq, May 2009]

KDR Gene-Disease associations (from GenCC):

pulmonary arterial hypertension
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen

KDR links:

ENSG00000250646 (HGNC:58789):

ENSG00000250646 links:

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ACMG classification

Classification was made for transcript

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

BS2

High AC in GnomAdExome4 at 6 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002253.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KDR	NM_002253.4	MANE Select	c.3773C>A	p.Thr1258Lys	missense	Exon 29 of 30	NP_002244.1	P35968-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KDR	ENST00000263923.5	TSL:1 MANE Select	c.3773C>A	p.Thr1258Lys	missense	Exon 29 of 30	ENSP00000263923.4	P35968-1
KDR	ENST00000922964.1		c.3431C>A	p.Thr1144Lys	missense	Exon 28 of 29	ENSP00000593023.1
KDR	ENST00000647068.1		n.3786C>A		non_coding_transcript_exon	Exon 29 of 30

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1460122

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726454

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33436

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.00

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1110440

Other (OTH)

AF:

0.00

AC:

AN:

60336

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.83

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

-0.070

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.43

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.72

M_CAP

Benign

0.062

MetaRNN

Uncertain

0.46

MetaSVM

Uncertain

-0.059

MutationAssessor

Uncertain

2.9

PhyloP100

7.4

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-3.0

REVEL

Uncertain

0.46

Sift

Uncertain

0.011

Sift4G

Uncertain

0.019

Polyphen

0.73

Vest4

0.71

MutPred

0.21

Gain of ubiquitination at T1258 (P = 0.0066)

MVP

0.37

MPC

0.16

ClinPred

0.96

GERP RS

5.9

Varity_R

0.23

gMVP

0.59

Mutation Taster

=70/30

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over