Genetic Variant CXCR5:p.Asn26Lys (chr11-118893622-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_001716.5(CXCR5):c.78C>G(p.Asn26Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,605,556 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CXCR5
NM_001716.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91

Variant links:

Genes affected

CXCR5 (HGNC:1060): (C-X-C motif chemokine receptor 5) This gene encodes a multi-pass membrane protein that belongs to the CXC chemokine receptor family. It is expressed in mature B-cells and Burkitt's lymphoma. This cytokine receptor binds to B-lymphocyte chemoattractant (BLC), and is involved in B-cell migration into B-cell follicles of spleen and Peyer patches. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Aug 2011]

CXCR5 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=0.16261041).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CXCR5	NM_001716.5 link	c.78C>G	p.Asn26Lys	missense_variant	Exon 2 of 2	ENST00000292174.5	NP_001707.1	P32302-1A0N0R2Q2YD84A8K647
CXCR5	NM_032966.2 link	c.-58C>G		5_prime_UTR_variant	Exon 1 of 1		NP_116743.1	P32302-2Q2YD84

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CXCR5	ENST00000292174.5 link	c.78C>G	p.Asn26Lys	missense_variant	Exon 2 of 2	1	NM_001716.5	ENSP00000292174.4		P32302-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000405

AC:

AN:

247048

AF XY:

0.00000750

show subpopulations

Gnomad AFR exome

AF:

0.0000616

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

AF:

0.00000206

AC:

AN:

1453352

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

721742

show subpopulations

Gnomad4 AFR exome

AF:

0.0000899

AC:

AN:

33352

Gnomad4 AMR exome

AF:

0.00

AC:

AN:

44348

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

25602

Gnomad4 EAS exome

AF:

0.00

AC:

AN:

39538

Gnomad4 SAS exome

AF:

0.00

AC:

AN:

85342

Gnomad4 FIN exome

AF:

0.00

AC:

AN:

53146

Gnomad4 NFE exome

AF:

0.00

AC:

AN:

1106308

Gnomad4 Remaining exome

AF:

0.00

AC:

AN:

59980

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

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:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.0000241

AC:

0.0000241196

AN:

0.0000241196

Gnomad4 AMR

AF:

0.00

AC:

AN:

Gnomad4 ASJ

AF:

0.00

AC:

AN:

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.00

AC:

AN:

Gnomad4 OTH

AF:

0.00

AC:

AN:

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 16, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.78C>G (p.N26K) alteration is located in exon 2 (coding exon 2) of the CXCR5 gene. This alteration results from a C to G substitution at nucleotide position 78, causing the asparagine (N) at amino acid position 26 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.36

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.44

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.45

M_CAP

Benign

0.011

MetaRNN

Benign

0.16

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.17

Sift

Uncertain

0.022

Sift4G

Uncertain

0.023

Polyphen

0.089

Vest4

0.11

MutPred

0.58

Gain of methylation at N26 (P = 0.0087);

MVP

0.43

MPC

1.0

ClinPred

0.10

GERP RS

4.1

Varity_R

0.16

gMVP

0.55

Mutation Taster

=85/15

polymorphism

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over