NM_001173990.3:c.341T>G

Variant names:

• chr11-61397885-T-G
• rs386833831
• NM_001173990.3:c.341T>G

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The NM_001173990.3(TMEM216):​c.341T>G​(p.Leu114Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L114I) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TMEM216 NM_001173990.3 missense
• Clinical Significance: Pathogenic/Likely pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 6.72
• Publications: 6 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: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.944
• PP5: Variant 11-61397885-T-G is Pathogenic according to our data. Variant chr11-61397885-T-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 199.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001173990.3. 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.341T>G	p.Leu114Arg	missense	Exon 4 of 5	NP_001167461.1	Q9P0N5-1
	TMEM216	NM_001173991.3		c.341T>G	p.Leu114Arg	missense	Exon 4 of 5	NP_001167462.1	Q9P0N5-3
	TMEM216	NM_016499.6		c.158T>G	p.Leu53Arg	missense	Exon 4 of 5	NP_057583.2	Q9P0N5-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM216	ENST00000515837.7	TSL:2 MANE Select	c.341T>G	p.Leu114Arg	missense	Exon 4 of 5	ENSP00000440638.1	Q9P0N5-1
	TMEM216	ENST00000334888.10	TSL:2	c.341T>G	p.Leu114Arg	missense	Exon 4 of 5	ENSP00000334844.5	Q9P0N5-3
	TMEM216	ENST00000398979.7	TSL:1	c.158T>G	p.Leu53Arg	missense	Exon 4 of 5	ENSP00000381950.3	J3QT25

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
2	-	-	Meckel syndrome, type 2 (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.82
BayesDel_addAF	Pathogenic	0.49	D
BayesDel_noAF	Pathogenic	0.47
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.88	D
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.87	D
M_CAP	Uncertain	0.29	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Pathogenic	0.91	D
MutationAssessor	Pathogenic	3.2	M
PhyloP100		6.7
PrimateAI	Uncertain	0.69	T
PROVEAN	Pathogenic	-5.9	D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Vest4		0.97
MVP		0.85
MPC		0.59
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.98
gMVP		0.94
Mutation Taster		=1/99	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs386833831; hg19: chr11-61165357;