16-66622146-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_181521.3(CMTM4):​c.539G>A​(p.Arg180His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,074 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CMTM4
NM_181521.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.596
Variant links:
Genes affected
CMTM4 (HGNC:19175): (CKLF like MARVEL transmembrane domain containing 4) This gene belongs to the chemokine-like factor gene superfamily, a novel family that is similar to the chemokine and the transmembrane 4 superfamilies of signaling molecules. This gene is one of several chemokine-like factor genes located in a cluster on chromosome 16. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.092624664).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CMTM4NM_181521.3 linkuse as main transcriptc.539G>A p.Arg180His missense_variant 4/4 ENST00000394106.7 NP_852662.1 Q8IZR5-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CMTM4ENST00000394106.7 linkuse as main transcriptc.539G>A p.Arg180His missense_variant 4/41 NM_181521.3 ENSP00000377666.2 Q8IZR5-2
CMTM4ENST00000330687.8 linkuse as main transcriptc.539G>A p.Arg180His missense_variant 4/51 ENSP00000333833.4 Q8IZR5-1
CMTM4ENST00000563952.1 linkuse as main transcriptc.452G>A p.Arg151His missense_variant 4/41 ENSP00000456380.1 Q8IZR5-3
CMTM4ENST00000561680.5 linkuse as main transcriptc.257G>A p.Arg86His missense_variant 3/52 ENSP00000464316.1 J3QRP2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249426
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134816
show subpopulations
Gnomad AFR exome
AF:
0.0000627
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460868
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
726610
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 29, 2023The c.539G>A (p.R180H) alteration is located in exon 4 (coding exon 4) of the CMTM4 gene. This alteration results from a G to A substitution at nucleotide position 539, causing the arginine (R) at amino acid position 180 to be replaced by a histidine (H). 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
0.083
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.041
T;T;.;.
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.32
N
LIST_S2
Benign
0.75
T;T;T;T
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.093
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N;.;N;.
PrimateAI
Benign
0.26
T
PROVEAN
Uncertain
-2.5
N;.;N;N
REVEL
Benign
0.046
Sift
Benign
0.036
D;.;T;T
Sift4G
Benign
0.17
T;T;T;T
Polyphen
0.022
B;.;.;.
Vest4
0.18
MVP
0.19
MPC
0.62
ClinPred
0.13
T
GERP RS
1.8
Varity_R
0.061
gMVP
0.15

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: rs778488127; hg19: chr16-66656049; API