18-5891629-G-A

Variant names:

• chr18-5891629-G-A
• rs2095171220
• NM_001395400.1:c.435C>T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_001395400.1(TMEM200C):​c.435C>T​(p.Ser145Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,660 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 Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: TMEM200C NM_001395400.1 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.0450

Genes affected

TMEM200C (HGNC:37208): (transmembrane protein 200C) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000264449 (HGNC:):

MIR3976HG (HGNC:51104): (MIR3976 host gene)

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 18-5891629-G-A is Benign according to our data. Variant chr18-5891629-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2648539.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.045 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM200C	NM_001395400.1	c.435C>T	p.Ser145Ser	synonymous_variant	Exon 2 of 2	ENST00000383490.3	NP_001382329.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM200C	ENST00000383490.3	c.435C>T	p.Ser145Ser	synonymous_variant	Exon 2 of 2	6	NM_001395400.1	ENSP00000372982.2
TMEM200C	ENST00000581347.2	c.435C>T	p.Ser145Ser	synonymous_variant	Exon 3 of 3	5		ENSP00000463375.1
ENSG00000264449	ENST00000577694.1	n.199+2456G>A		intron_variant	Intron 2 of 2	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461660 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727118

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000370 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

May 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

TMEM200C: PM2:Supporting, BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	1.5
DANN	Benign	0.94

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

Other links and lift over

dbSNP: rs2095171220; hg19: chr18-5891628;