16-57382353-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_002996.6(CX3CL1):c.515C>T(p.Thr172Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00024 in 1,609,802 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 3 hom. )

Consequence

CX3CL1
NM_002996.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.758

Variant links:

Genes affected

CX3CL1 (HGNC:10647): (C-X3-C motif chemokine ligand 1) This gene belongs to the CX3C subgroup of chemokines, characterized by the number of amino acids located between the conserved cysteine residues. This is the only member of the CX3C subgroup, which contains three amino acids between cysteine residues, resulting in a Cys-X-X-X-Cys configuration. The encoded protein contains an extended mucin-like stalk with a chemokine domain on top, and exists in both a membrane-anchored form where it acts as a binding molecule, or, in soluble form, as a chemotactic cytokine. The mature form of this protein can be cleaved at the cell surface, yielding different soluble forms that can interact with the G-protein coupled receptor, C-X3-C motif chemokine receptor 1 gene product. This gene plays a role in a wide range of diseases, including cancer, vasculitis, neuropathies, atherosclerosis, inflammatory diseases, and in human immunodeficiency virus infections. [provided by RefSeq, Sep 2017]

CX3CL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.005621642).

BS2

High Homozygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CX3CL1	NM_002996.6 link	c.515C>T	p.Thr172Met	missense_variant	Exon 3 of 3	ENST00000006053.7	NP_002987.1	P78423A0N0N7
CX3CL1	NM_001304392.3 link	c.260C>T	p.Thr87Met	missense_variant	Exon 2 of 2		NP_001291321.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CX3CL1	ENST00000006053.7 link	c.515C>T	p.Thr172Met	missense_variant	Exon 3 of 3	1	NM_002996.6	ENSP00000006053.6	P78423
CX3CL1	ENST00000565912.1 link	c.401C>T	p.Thr134Met	missense_variant	Exon 2 of 2	1		ENSP00000464114.1	J3QRA1
CX3CL1	ENST00000563383.1 link	c.533C>T	p.Thr178Met	missense_variant	Exon 3 of 3	5		ENSP00000456830.1	H3BSR6
CX3CL1	ENST00000564948.1 link	c.*226C>T		3_prime_UTR_variant	Exon 2 of 2	3		ENSP00000457996.1	H3BV86

Frequencies

GnomAD3 genomes

AF:

0.000302

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00836

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000360

AC:

AN:

244448

Hom.:

AF XY:

0.000330

AC XY:

AN XY:

133244

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000204

Gnomad ASJ exome

AF:

0.00616

Gnomad EAS exome

AF:

0.000330

Gnomad SAS exome

AF:

0.0000329

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000996

Gnomad OTH exome

AF:

0.000332

GnomAD4 exome

AF:

0.000233

AC:

340

AN:

1457502

Hom.:

Cov.:

AF XY:

0.000223

AC XY:

162

AN XY:

725066

show subpopulations

Gnomad4 AFR exome

AF:

0.0000897

Gnomad4 AMR exome

AF:

0.000247

Gnomad4 ASJ exome

AF:

0.00752

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000639

Gnomad4 OTH exome

AF:

0.000845

GnomAD4 genome

AF:

0.000302

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00836

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000415

Hom.:

Bravo

AF:

0.000257

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 29, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.515C>T (p.T172M) alteration is located in exon 3 (coding exon 3) of the CX3CL1 gene. This alteration results from a C to T substitution at nucleotide position 515, causing the threonine (T) at amino acid position 172 to be replaced by a methionine (M). 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

0.11

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

T;T;.

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.50

FATHMM_MKL

Benign

0.10

LIST_S2

Benign

0.67

T;T;T

M_CAP

Benign

0.0061

MetaRNN

Benign

0.0056

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;.;.

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-2.5

N;N;.

REVEL

Benign

0.073

Sift

Uncertain

0.0020

D;D;.

Sift4G

Uncertain

0.0070

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.20

MVP

0.043

MPC

0.88

ClinPred

0.085

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.14

gMVP

0.28

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