NM_014742.4:c.229+1672A>T

Variant names:

• chr20-32137845-A-T
• rs6142618
• NM_014742.4:c.229+1672A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014742.4(TM9SF4):​c.229+1672A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 31)
• Consequence: TM9SF4 NM_014742.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.219
• Publications: 35 publications found

Genes affected

TM9SF4 (HGNC:30797): (transmembrane 9 superfamily member 4) Involved in several processes, including positive regulation of protein localization; regulation of intracellular pH; and vacuolar proton-transporting V-type ATPase complex assembly. Located in Golgi apparatus and early endosome. [provided by Alliance of Genome Resources, Apr 2022]

TM9SF4 Gene-Disease associations (from GenCC):

• autism spectrum disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014742.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TM9SF4	NM_014742.4	MANE Select	c.229+1672A>T		intron	N/A	NP_055557.2
	TM9SF4	NM_001363731.2		c.178+1672A>T		intron	N/A	NP_001350660.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TM9SF4	ENST00000398022.7	TSL:1 MANE Select	c.229+1672A>T		intron	N/A	ENSP00000381104.2
	TM9SF4	ENST00000217315.9	TSL:2	c.178+1672A>T		intron	N/A	ENSP00000217315.5
	TM9SF4	ENST00000417389.1	TSL:4	n.487+1672A>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.89
DANN	Benign	0.35
PhyloP100		-0.22

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

Other links and lift over

dbSNP: rs6142618; hg19: chr20-30725648;