Genetic Variant CXCR5:p.Cys315Ser (chr11-118894487-T-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001716.5(CXCR5):c.943T>A(p.Cys315Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,458,036 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CXCR5
NM_001716.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.00

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:

BCL9L (HGNC:23688): (BCL9 like) Enables beta-catenin binding activity. Involved in several processes, including negative regulation of transforming growth factor beta receptor signaling pathway; positive regulation of epithelial to mesenchymal transition; and positive regulation of transcription by RNA polymerase II. Located in nucleolus and nucleoplasm. Part of beta-catenin-TCF complex. [provided by Alliance of Genome Resources, Apr 2022]

BCL9L links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CXCR5	NM_001716.5 link	c.943T>A	p.Cys315Ser	missense_variant	Exon 2 of 2	ENST00000292174.5	NP_001707.1	P32302-1A0N0R2Q2YD84A8K647
CXCR5	NM_032966.2 link	c.808T>A	p.Cys270Ser	missense_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.943T>A	p.Cys315Ser	missense_variant	Exon 2 of 2	1	NM_001716.5	ENSP00000292174.4		P32302-1
BCL9L	ENST00000334801 link	c.*3928A>T		3_prime_UTR_variant	Exon 8 of 8	1		ENSP00000335320.3		Q86UU0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000404

AC:

AN:

247288

Hom.:

AF XY:

0.00

AC XY:

AN XY:

133594

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 SAS exome

AF:

0.0000333

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1458036

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724934

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 25, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.943T>A (p.C315S) alteration is located in exon 2 (coding exon 2) of the CXCR5 gene. This alteration results from a T to A substitution at nucleotide position 943, causing the cysteine (C) at amino acid position 315 to be replaced by a serine (S). 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

Uncertain

0.46

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.41

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.74

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.60

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.34

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-5.6

REVEL

Uncertain

0.52

Sift

Pathogenic

0.0

Sift4G

Benign

0.23

Polyphen

1.0

Vest4

0.34

MutPred

0.68

Loss of catalytic residue at C315 (P = 0.2265);

MVP

0.97

MPC

2.0

ClinPred

0.99

GERP RS

4.2

Varity_R

0.89

gMVP

0.90

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