Genetic Variant KIR3DL2:p.Thr397Arg (chr19-54866553-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006737.4(KIR3DL2):c.1190C>G(p.Thr397Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,972 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Consequence

KIR3DL2
NM_006737.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.309

Publications

38 publications found

Variant links:

Genes affected

KIR3DL2 (HGNC:6339): (killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 2) Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene is one of the "framework" loci that is present on all haplotypes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jun 2011]

KIR3DL2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.123052835).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIR3DL2	NM_006737.4 link	c.1190C>G	p.Thr397Arg	missense_variant	Exon 9 of 9	ENST00000326321.7	NP_006728.2	P43630-1A0A0U1WNF3Q8NHK6
KIR3DL2	NM_001242867.2 link	c.1139C>G	p.Thr380Arg	missense_variant	Exon 8 of 8		NP_001229796.1	P43630-2Q8NHI6
KIR3DL2	XM_047438795.1 link	c.1034C>G	p.Thr345Arg	missense_variant	Exon 7 of 7		XP_047294751.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIR3DL2	ENST00000326321.7 link	c.1190C>G	p.Thr397Arg	missense_variant	Exon 9 of 9	1	NM_006737.4	ENSP00000325525.3		P43630-1
KIR3DL2	ENST00000270442.6 link	c.1139C>G	p.Thr380Arg	missense_variant	Exon 8 of 8	1		ENSP00000270442.5		P43630-2

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151854

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:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251458

AF XY:

0.00000736

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151972

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74266

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41496

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000208

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10494

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67922

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.18

T;.

Eigen

Benign

-0.95

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.011

M_CAP

Benign

0.00074

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.3

M;.

PhyloP100

-0.31

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-3.4

D;D

REVEL

Benign

0.042

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.0030

D;D

Polyphen

0.0070

B;.

Vest4

0.14

MutPred

0.36

Loss of sheet (P = 0.0181);.;

MVP

0.081

MPC

0.0024

ClinPred

0.20

GERP RS

0.46

Varity_R

0.27

gMVP

0.27

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.16

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over