rs187328136

Variant names:

• chr2-201620400-T-C
• rs187328136
• NM_001044385.3:c.*3855A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BS1_Supporting

The NM_001044385.3(TMEM237):​c.*3855A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00152 in 152,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0015 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TMEM237 NM_001044385.3 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0670
• Publications: 0 publications found

Genes affected

TMEM237 (HGNC:14432): (transmembrane protein 237) The protein encoded by this gene is a tetraspanin protein that is thought to be involved in WNT signaling. Defects in this gene are a cause of Joubert syndrome-14. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

TMEM237 Gene-Disease associations (from GenCC):

• Joubert syndrome 14

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), ClinGen
• Joubert syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Joubert syndrome with oculorenal defect

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Joubert syndrome with renal defect

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

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00152 (232/152336) while in subpopulation AFR AF = 0.00539 (224/41562). AF 95% confidence interval is 0.00481. There are 0 homozygotes in GnomAd4. There are 135 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001044385.3. 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
	TMEM237	NM_001044385.3	MANE Select	c.*3855A>G		3_prime_UTR	Exon 13 of 13	NP_001037850.1	Q96Q45-1
	TMEM237	NM_152388.4		c.*3855A>G		3_prime_UTR	Exon 13 of 13	NP_689601.2	Q96Q45-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMEM237	ENST00000409883.7	TSL:5 MANE Select	c.*3855A>G		3_prime_UTR	Exon 13 of 13	ENSP00000386264.2	Q96Q45-1
	TMEM237	ENST00000621467.5	TSL:1	c.*3855A>G		3_prime_UTR	Exon 13 of 13	ENSP00000480508.2	A0A087WWU1
	TMEM237	ENST00000409444.6	TSL:5	c.*3855A>G		3_prime_UTR	Exon 13 of 13	ENSP00000387203.2	Q96Q45-2

Frequencies

GnomAD3 genomes AF: 0.00149 AC: 227 AN: 152218 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00531

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000327

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: 0.0000294

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 4 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 2

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 2

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 2

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.00152 AC: 232 AN: 152336 Hom.: 0 Cov.: 32 AF XY: 0.00181 AC XY: 135 AN XY: 74482

African (AFR) AF: 0.00539 AC: 224 AN: 41562

American (AMR) AF: 0.000327 AC: 5 AN: 15310

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68038

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

Alfa AF: 0.00132 Hom.: 0

Bravo AF: 0.00160

Asia WGS AF: 0.00115 AC: 4 AN: 3478

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Joubert syndrome 14 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	3.5
DANN	Benign	0.78
PhyloP100		0.067

Splicing

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

Other links and lift over

dbSNP: rs187328136; hg19: chr2-202485123;