8-18210188-G-A

Variant names:

• chr8-18210188-G-A
• rs28359483
• NM_000662.8:c.-86+8G>A

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_000662.8(NAT1):​c.-86+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000722 in 152,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000072 (0 hom., cov: 32)
• Consequence: NAT1 NM_000662.8 splice_region, intron
• Scores: Splicing: ADA: 0.0006273
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.108
• Publications: 0 publications found

Genes affected

NAT1 (HGNC:7645): (N-acetyltransferase 1) This gene is one of two arylamine N-acetyltransferase (NAT) genes in the human genome, and is orthologous to the mouse and rat Nat2 genes. The enzyme encoded by this gene catalyzes the transfer of an acetyl group from acetyl-CoA to various arylamine and hydrazine substrates. This enzyme helps metabolize drugs and other xenobiotics, and functions in folate catabolism. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BS2: High AC in GnomAd4 at 11 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000662.8. 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
	NAT1	NM_000662.8	MANE Select	c.-86+8G>A		splice_region intron	N/A	NP_000653.3
	NAT1	NM_001160175.4		c.-168+8G>A		splice_region intron	N/A	NP_001153647.1	F5H5R8
	NAT1	NM_001160176.4		c.-18+8G>A		splice_region intron	N/A	NP_001153648.1	F5H5R8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAT1	ENST00000307719.9	TSL:1 MANE Select	c.-86+8G>A		splice_region intron	N/A	ENSP00000307218.4	P18440
	NAT1	ENST00000518029.5	TSL:1	c.-470+8G>A		splice_region intron	N/A	ENSP00000428270.1	P18440
	NAT1	ENST00000903000.1		c.-204+233G>A		intron	N/A	ENSP00000573059.1

Frequencies

GnomAD3 genomes AF: 0.0000723 AC: 11 AN: 152172 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000722 AC: 11 AN: 152290 Hom.: 0 Cov.: 32 AF XY: 0.0000940 AC XY: 7 AN XY: 74460

African (AFR) AF: 0.0000241 AC: 1 AN: 41572

American (AMR) AF: 0.00 AC: 0 AN: 15308

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5162

South Asian (SAS) AF: 0.00 AC: 0 AN: 4814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000147 AC: 10 AN: 68018

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.0000664 Hom.: 0

Bravo AF: 0.0000529

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
CADD	Benign	7.5
DANN	Benign	0.90
PhyloP100		0.11
PromoterAI		0.086	Neutral

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00063
dbscSNV1_RF	Benign	0.018
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: rs28359483; hg19: chr8-18067697;