chr18-74631634-T-A

Variant names:

• chr18-74631634-T-A
• rs1305024488
• NM_017757.3:c.615T>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The ENST00000299687.10(ZNF407):​c.615T>A​(p.Ala205Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A205A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ZNF407 ENST00000299687.10 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.825
• Publications: 0 publications found

Genes affected

ZNF407 (HGNC:19904): (zinc finger protein 407) This gene encodes a zinc finger protein whose exact function is not known. It may be involved in transcriptional regulation. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

ZNF407 Gene-Disease associations (from GenCC):

• short stature, impaired intellectual development, microcephaly, hypotonia, and ocular anomalies

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• intellectual disability

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• complex neurodevelopmental disorder

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.65).
• BP7: Synonymous conserved (PhyloP=-0.825 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000299687.10. 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
	ZNF407	NM_017757.3	MANE Select	c.615T>A	p.Ala205Ala	synonymous	Exon 2 of 9	NP_060227.2
	ZNF407	NM_001384475.1		c.615T>A	p.Ala205Ala	synonymous	Exon 2 of 9	NP_001371404.1
	ZNF407	NM_001146189.1		c.615T>A	p.Ala205Ala	synonymous	Exon 1 of 7	NP_001139661.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZNF407	ENST00000299687.10	TSL:1 MANE Select	c.615T>A	p.Ala205Ala	synonymous	Exon 2 of 9	ENSP00000299687.4
	ZNF407	ENST00000577538.5	TSL:2	c.615T>A	p.Ala205Ala	synonymous	Exon 1 of 7	ENSP00000463270.1
	ZNF407	ENST00000309902.10	TSL:2	c.615T>A	p.Ala205Ala	synonymous	Exon 1 of 4	ENSP00000310359.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461648 Hom.: 0 Cov.: 61 AF XY: 0.00 AC XY: 0 AN XY: 727116

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53340

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111868

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.65
CADD	Benign	0.32
DANN	Benign	0.79
PhyloP100		-0.82

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: rs1305024488; hg19: chr18-72343590;