3-39265853-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_001337.4(CX3CR1):ā€‹c.657T>Cā€‹(p.Phe219=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,614,236 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: š‘“ 0.00076 ( 0 hom., cov: 32)
Exomes š‘“: 0.000057 ( 0 hom. )

Consequence

CX3CR1
NM_001337.4 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -1.75
Variant links:
Genes affected
CX3CR1 (HGNC:2558): (C-X3-C motif chemokine receptor 1) Fractalkine is a transmembrane protein and chemokine involved in the adhesion and migration of leukocytes. The protein encoded by this gene is a receptor for fractalkine. The encoded protein also is a coreceptor for HIV-1, and some variations in this gene lead to increased susceptibility to HIV-1 infection and rapid progression to AIDS. Four transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 3-39265853-A-G is Benign according to our data. Variant chr3-39265853-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3034897.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-1.75 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CX3CR1NM_001337.4 linkuse as main transcriptc.657T>C p.Phe219= synonymous_variant 2/2 ENST00000399220.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CX3CR1ENST00000399220.3 linkuse as main transcriptc.657T>C p.Phe219= synonymous_variant 2/21 NM_001337.4 P1P49238-1
CX3CR1ENST00000358309.3 linkuse as main transcriptc.753T>C p.Phe251= synonymous_variant 2/22 P49238-4
CX3CR1ENST00000541347.5 linkuse as main transcriptc.657T>C p.Phe219= synonymous_variant 2/24 P1P49238-1
CX3CR1ENST00000542107.5 linkuse as main transcriptc.657T>C p.Phe219= synonymous_variant 2/24 P1P49238-1

Frequencies

GnomAD3 genomes
AF:
0.000663
AC:
101
AN:
152228
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00222
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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
GnomAD3 exomes
AF:
0.000180
AC:
45
AN:
249568
Hom.:
0
AF XY:
0.000126
AC XY:
17
AN XY:
135396
show subpopulations
Gnomad AFR exome
AF:
0.00239
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000575
AC:
84
AN:
1461890
Hom.:
0
Cov.:
33
AF XY:
0.0000481
AC XY:
35
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00191
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000761
AC:
116
AN:
152346
Hom.:
0
Cov.:
32
AF XY:
0.000846
AC XY:
63
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.00257
Gnomad4 AMR
AF:
0.000457
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000508
Hom.:
0
Bravo
AF:
0.000725
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CX3CR1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 31, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
4.9
DANN
Benign
0.55

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.

Other links and lift over

dbSNP: rs4986872; hg19: chr3-39307344; API