chr4-55099552-A-G

Position:

• chr4-55099552-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002253.4(KDR):​c.2267-749T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.09 in 152,270 control chromosomes in the GnomAD database, including 1,997 homozygotes. 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 0.090 (1997 hom., cov: 32)
• Consequence: KDR NM_002253.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0560

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.306 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KDR	NM_002253.4	c.2267-749T>C		intron_variant		ENST00000263923.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KDR	ENST00000263923.5	c.2267-749T>C		intron_variant		1	NM_002253.4	P1
KDR	ENST00000647068.1	n.2280-749T>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes AF: 0.0897 AC: 13650 AN: 152152 Hom.: 1984 Cov.: 32

Gnomad AFR AF: 0.310

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0347

Gnomad ASJ AF: 0.00259

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.00227

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0190

Gnomad NFE AF: 0.00193

Gnomad OTH AF: 0.0630

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0900 AC: 13701 AN: 152270 Hom.: 1997 Cov.: 32 AF XY: 0.0885 AC XY: 6590 AN XY: 74470

Gnomad4 AFR AF: 0.310

Gnomad4 AMR AF: 0.0346

Gnomad4 ASJ AF: 0.00259

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.00207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00193

Gnomad4 OTH AF: 0.0624

Alfa AF: 0.0545 Hom.: 154

Bravo AF: 0.102

Asia WGS AF: 0.0220 AC: 77 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.4
DANN	Benign	0.64

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

LitVar

Other links and lift over

dbSNP: rs6554233; hg19: chr4-55965719;