ENST00000334888.10:c.440G>T

Variant names:

• chr11-61398269-G-T
• rs10897158
• ENST00000334888.10:c.440G>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The ENST00000334888.10(TMEM216):​c.440G>T​(p.Arg147Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 151,898 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R147K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000027 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TMEM216 ENST00000334888.10 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 0.817
• Publications: 42 publications found

Genes affected

TMEM216 (HGNC:25018): (transmembrane protein 216) This locus encodes a transmembrane domain-containing protein. Mutations at this locus have been associated with Meckel-Gruber Syndrome Type 2, and Joubert Syndrome 2, also known as Cerebello-oculorenal Syndrome 2. [provided by RefSeq, Aug 2010]

TMEM216 Gene-Disease associations (from GenCC):

• ciliopathy

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, PanelApp Australia
• Joubert syndrome 2

  Inheritance: AR Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• Joubert syndrome with oculorenal defect

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Meckel syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• orofaciodigital syndrome type 6

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000334888.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM216	NM_001173990.3	MANE Select	c.432-1G>T		splice_acceptor intron	N/A	NP_001167461.1	Q9P0N5-1
	TMEM216	NM_001173991.3		c.440G>T	p.Arg147Met	missense	Exon 5 of 5	NP_001167462.1	Q9P0N5-3
	TMEM216	NM_016499.6		c.257G>T	p.Arg86Met	missense	Exon 5 of 5	NP_057583.2	Q9P0N5-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM216	ENST00000334888.10	TSL:2	c.440G>T	p.Arg147Met	missense	Exon 5 of 5	ENSP00000334844.5	Q9P0N5-3
	TMEM216	ENST00000515837.7	TSL:2 MANE Select	c.432-1G>T		splice_acceptor intron	N/A	ENSP00000440638.1	Q9P0N5-1
	TMEM216	ENST00000398979.7	TSL:1	c.249-1G>T		splice_acceptor intron	N/A	ENSP00000381950.3	J3QT25

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151780 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

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

GnomAD2 exomes AF: 0.0000245 AC: 6 AN: 244770 AF XY: 0.0000301

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000904

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.0000267 AC: 39 AN: 1458988 Hom.: 0 Cov.: 46 AF XY: 0.0000372 AC XY: 27 AN XY: 725646

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.00 AC: 0 AN: 44292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26060

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39662

South Asian (SAS) AF: 0.000186 AC: 16 AN: 85968

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53226

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.0000180 AC: 20 AN: 1110272

Other (OTH) AF: 0.0000166 AC: 1 AN: 60292

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151898 Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1 AN XY: 74234

African (AFR) AF: 0.0000241 AC: 1 AN: 41456

American (AMR) AF: 0.00 AC: 0 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5170

South Asian (SAS) AF: 0.00 AC: 0 AN: 4802

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10546

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 290

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67862

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 11912

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Joubert syndrome 2;C1864148:Meckel syndrome, type 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.036	T
BayesDel_noAF	Uncertain	-0.080
CADD	Benign	23
DANN	Benign	0.96
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Benign	0.76	D
M_CAP	Benign	0.059	D
PhyloP100		0.82
ClinPred		0.26	T
GERP RS		4.1
Mutation Taster		=66/34	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.80		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.80		Position offset: 1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs10897158; hg19: chr11-61165741;