3-39265939-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001337.4(CX3CR1):​c.571C>T​(p.Arg191Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000234 in 1,614,172 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00024 ( 7 hom. )

Consequence

CX3CR1
NM_001337.4 missense

Scores

3
16

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.208
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0067015886).
BP6
Variant 3-39265939-G-A is Benign according to our data. Variant chr3-39265939-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3058556.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CX3CR1NM_001337.4 linkuse as main transcriptc.571C>T p.Arg191Cys missense_variant 2/2 ENST00000399220.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CX3CR1ENST00000399220.3 linkuse as main transcriptc.571C>T p.Arg191Cys missense_variant 2/21 NM_001337.4 P1P49238-1
CX3CR1ENST00000358309.3 linkuse as main transcriptc.667C>T p.Arg223Cys missense_variant 2/22 P49238-4
CX3CR1ENST00000541347.5 linkuse as main transcriptc.571C>T p.Arg191Cys missense_variant 2/24 P1P49238-1
CX3CR1ENST00000542107.5 linkuse as main transcriptc.571C>T p.Arg191Cys missense_variant 2/24 P1P49238-1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000521
AC:
130
AN:
249540
Hom.:
1
AF XY:
0.000687
AC XY:
93
AN XY:
135384
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.000596
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00353
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.000244
AC:
357
AN:
1461884
Hom.:
7
Cov.:
33
AF XY:
0.000312
AC XY:
227
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.000536
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00329
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000396
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152288
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00269
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000155
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.000496
AC:
60
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000164
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 SciencesMar 21, 2022This 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
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
17
DANN
Benign
0.92
DEOGEN2
Uncertain
0.42
T;T;T;.
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.66
FATHMM_MKL
Benign
0.069
N
LIST_S2
Uncertain
0.86
.;D;.;D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.0067
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;L;L;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-2.5
N;N;N;N
REVEL
Benign
0.071
Sift
Benign
0.23
T;T;T;T
Sift4G
Benign
0.20
T;T;T;T
Polyphen
0.017
B;B;B;.
Vest4
0.096
MutPred
0.43
Gain of catalytic residue at V193 (P = 0.0615);Gain of catalytic residue at V193 (P = 0.0615);Gain of catalytic residue at V193 (P = 0.0615);.;
MVP
0.46
MPC
0.37
ClinPred
0.018
T
GERP RS
3.8
Varity_R
0.16
gMVP
0.51

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: rs200607201; hg19: chr3-39307430; COSMIC: COSV100843243; COSMIC: COSV100843243; API