1-165729946-T-C

Position:

• chr1-165729946-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_019026.6(TMCO1):​c.469-1825A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0368 in 152,054 control chromosomes in the GnomAD database, including 326 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 0.037 (326 hom., cov: 30)
• Consequence: TMCO1 NM_019026.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0510

Genes affected

TMCO1 (HGNC:18188): (transmembrane and coiled-coil domains 1) This locus encodes a transmembrane protein. Mutations at this locus have been associated with craniofacial dysmorphism, skeletal anomalies, and cognitive disability. Mutations at this locus have also been associated with open angle glaucoma blindness. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2012]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.125 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMCO1	NM_019026.6	c.469-1825A>G		intron_variant		ENST00000367881.11
TMCO1	NM_001256164.1	c.520-1825A>G		intron_variant
TMCO1	NM_001256165.1	c.433-1825A>G		intron_variant
TMCO1	NR_045818.1	n.563-1825A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMCO1	ENST00000367881.11	c.469-1825A>G		intron_variant		1	NM_019026.6	P1

Frequencies

GnomAD3 genomes AF: 0.0367 AC: 5572 AN: 151936 Hom.: 326 Cov.: 30

Gnomad AFR AF: 0.127

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0140

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000338

Gnomad OTH AF: 0.0311

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

GnomAD4 genome AF: 0.0368 AC: 5596 AN: 152054 Hom.: 326 Cov.: 30 AF XY: 0.0353 AC XY: 2626 AN XY: 74356

Gnomad4 AFR AF: 0.128

Gnomad4 AMR AF: 0.0140

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000830

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000338

Gnomad4 OTH AF: 0.0308

Alfa AF: 0.0324 Hom.: 34

Bravo AF: 0.0418

Asia WGS AF: 0.00866 AC: 30 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	2.5
DANN	Benign	0.78

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: rs12059327; hg19: chr1-165699183;