chr2-218134818-T-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_001557.4(CXCR2):c.17T>G(p.Met6Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00014 in 1,613,108 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M6I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00078 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

CXCR2
NM_001557.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.99

Publications

2 publications found

Variant links:

Genes affected

CXCR2 (HGNC:6027): (C-X-C motif chemokine receptor 2) The protein encoded by this gene is a member of the G-protein-coupled receptor family. This protein is a receptor for interleukin 8 (IL8). It binds to IL8 with high affinity, and transduces the signal through a G-protein activated second messenger system. This receptor also binds to chemokine (C-X-C motif) ligand 1 (CXCL1/MGSA), a protein with melanoma growth stimulating activity, and has been shown to be a major component required for serum-dependent melanoma cell growth. This receptor mediates neutrophil migration to sites of inflammation. The angiogenic effects of IL8 in intestinal microvascular endothelial cells are found to be mediated by this receptor. Knockout studies in mice suggested that this receptor controls the positioning of oligodendrocyte precursors in developing spinal cord by arresting their migration. This gene, IL8RA, a gene encoding another high affinity IL8 receptor, as well as IL8RBP, a pseudogene of IL8RB, form a gene cluster in a region mapped to chromosome 2q33-q36. Alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Nov 2009]

CXCR2 Gene-Disease associations (from GenCC):

WHIM syndrome 2
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
autosomal recessive severe congenital neutropenia due to CXCR2 deficiency
Inheritance: AR Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet

CXCR2 links:

ENSG00000305582 (HGNC:):

ENSG00000305582 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0080552995).

BP6

Variant 2-218134818-T-G is Benign according to our data. Variant chr2-218134818-T-G is described in ClinVar as Likely_benign. ClinVar VariationId is 1540781.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000781 (119/152334) while in subpopulation AFR AF = 0.00269 (112/41578). AF 95% confidence interval is 0.00229. There are 0 homozygotes in GnomAd4. There are 47 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001557.4. 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
	CXCR2	NM_001557.4	MANE Select	c.17T>G	p.Met6Arg	missense	Exon 3 of 3	NP_001548.1	P25025
	CXCR2	NM_001168298.2		c.17T>G	p.Met6Arg	missense	Exon 4 of 4	NP_001161770.1	P25025

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CXCR2	ENST00000318507.7	TSL:1 MANE Select	c.17T>G	p.Met6Arg	missense	Exon 3 of 3	ENSP00000319635.2	P25025
CXCR2	ENST00000453237.5	TSL:1	c.17T>G	p.Met6Arg	missense	Exon 4 of 4	ENSP00000413686.1	C9JW47
CXCR2	ENST00000428565.1	TSL:1	c.17T>G	p.Met6Arg	missense	Exon 2 of 2	ENSP00000392698.1	C9J1J7

Frequencies

GnomAD3 genomes

AF:

0.000782

AC:

119

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00270

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000159

AC:

AN:

251104

AF XY:

0.0000884

show subpopulations

Gnomad AFR exome

AF:

0.00228

Gnomad AMR exome

AF:

0.0000580

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:

0.000163

GnomAD4 exome

AF:

0.0000732

AC:

107

AN:

1460774

Hom.:

Cov.:

AF XY:

0.0000647

AC XY:

AN XY:

726490

show subpopulations

African (AFR)

AF:

0.00281

AC:

AN:

33416

American (AMR)

AF:

0.0000896

AC:

AN:

44640

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39660

South Asian (SAS)

AF:

0.00

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111168

Other (OTH)

AF:

0.000116

AC:

AN:

60362

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

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:

0.000781

AC:

119

AN:

152334

Hom.:

Cov.:

AF XY:

0.000631

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.00269

AC:

112

AN:

41578

American (AMR)

AF:

0.000327

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68024

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

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:

0.000195

Hom.:

Bravo

AF:

0.000903

ESP6500AA

AF:

0.00318

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000214

AC:

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.44

CADD

Benign

0.030

(source)

DANN

Benign

0.43

DEOGEN2

Benign

0.093

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.32

M_CAP

Benign

0.018

MetaRNN

Benign

0.0081

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.0

PhyloP100

-2.0

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.4

REVEL

Benign

0.080

Sift

Benign

0.051

Sift4G

Benign

0.35

Polyphen

0.021

Vest4

0.19

MVP

0.27

MPC

0.34

ClinPred

0.012

GERP RS

-7.3

Varity_R

0.34

gMVP

0.55

Mutation Taster

=98/2

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over