NM_178868.5:c.147+33065G>A

Variant names:

• chr3-32272184-G-A
• rs4955272
• NM_178868.5:c.147+33065G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_178868.5(CMTM8):​c.147+33065G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.206 in 152,118 control chromosomes in the GnomAD database, including 3,962 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.21 (3962 hom., cov: 33)
• Consequence: CMTM8 NM_178868.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.29
• Publications: 2 publications found

Genes affected

CMTM8 (HGNC:19179): (CKLF like MARVEL transmembrane domain containing 8) This gene belongs to the chemokine-like factor gene superfamily, a novel family that is similar to the chemokine and the transmembrane 4 superfamilies. This gene is one of several chemokine-like factor genes located in a cluster on chromosome 3. This gene acts as a tumor suppressor, and plays a role in regulating the migration of tumor cells. The encoded protein is thought to function as a a negative regulator of epidermal growth factor-induced signaling. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2016]

ENSG00000296868 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.286 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178868.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CMTM8	NM_178868.5	MANE Select	c.147+33065G>A		intron	N/A	NP_849199.2
	CMTM8	NM_001320308.2		c.147+33065G>A		intron	N/A	NP_001307237.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CMTM8	ENST00000307526.4	TSL:1 MANE Select	c.147+33065G>A		intron	N/A	ENSP00000307741.3
	CMTM8	ENST00000458535.6	TSL:1	c.147+33065G>A		intron	N/A	ENSP00000412934.2
	CMTM8	ENST00000867234.1		c.147+33065G>A		intron	N/A	ENSP00000537293.1

Frequencies

GnomAD3 genomes AF: 0.206 AC: 31366 AN: 152000 Hom.: 3967 Cov.: 33

Gnomad AFR AF: 0.0697

Gnomad AMI AF: 0.332

Gnomad AMR AF: 0.182

Gnomad ASJ AF: 0.271

Gnomad EAS AF: 0.126

Gnomad SAS AF: 0.170

Gnomad FIN AF: 0.258

Gnomad MID AF: 0.288

Gnomad NFE AF: 0.290

Gnomad OTH AF: 0.227

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.206 AC: 31352 AN: 152118 Hom.: 3962 Cov.: 33 AF XY: 0.203 AC XY: 15093 AN XY: 74356

African (AFR) AF: 0.0696 AC: 2889 AN: 41516

American (AMR) AF: 0.181 AC: 2770 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.271 AC: 940 AN: 3470

East Asian (EAS) AF: 0.126 AC: 654 AN: 5174

South Asian (SAS) AF: 0.170 AC: 822 AN: 4828

European-Finnish (FIN) AF: 0.258 AC: 2721 AN: 10558

Middle Eastern (MID) AF: 0.296 AC: 87 AN: 294

European-Non Finnish (NFE) AF: 0.290 AC: 19696 AN: 67962

Other (OTH) AF: 0.223 AC: 471 AN: 2114

Alfa AF: 0.259 Hom.: 7064

Bravo AF: 0.195

Asia WGS AF: 0.137 AC: 477 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	12
DANN	Benign	0.83
PhyloP100		1.3
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs4955272; hg19: chr3-32313676;