rs9782

Variant names:

• chr12-102958048-T-A
• rs9782
• NM_004316.4:c.-197T>A

Your query was ambiguous. Multiple possible variants found:

• chr12-102958048-T-A
• chr12-102958048-T-C
• chr12-102958048-T-G

Variant summary

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

The NM_004316.4(ASCL1):​c.-197T>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 151,870 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.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ASCL1 NM_004316.4 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.365
• Publications: 22 publications found

Genes affected

ASCL1 (HGNC:738): (achaete-scute family bHLH transcription factor 1) This gene encodes a member of the basic helix-loop-helix (BHLH) family of transcription factors. The protein activates transcription by binding to the E box (5'-CANNTG-3'). Dimerization with other BHLH proteins is required for efficient DNA binding. This protein plays a role in the neuronal commitment and differentiation and in the generation of olfactory and autonomic neurons. Mutations in this gene may contribute to the congenital central hypoventilation syndrome (CCHS) phenotype in rare cases. [provided by RefSeq, Jul 2008]

PAH (HGNC:8582): (phenylalanine hydroxylase) This gene encodes a member of the biopterin-dependent aromatic amino acid hydroxylase protein family. The encoded phenylalanine hydroxylase enzyme hydroxylates phenylalanine to tyrosine and is the rate-limiting step in phenylalanine catabolism. Deficiency of this enzyme activity results in the autosomal recessive disorder phenylketonuria. [provided by RefSeq, Aug 2017]

PAH Gene-Disease associations (from GenCC):

• phenylketonuria

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Myriad Women’s Health, G2P
• classic phenylketonuria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• maternal phenylketonuria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• mild hyperphenylalaninemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• mild phenylketonuria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• tetrahydrobiopterin-responsive hyperphenylalaninemia/phenylketonuria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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=-0.78).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004316.4. 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
	ASCL1	NM_004316.4	MANE Select	c.-197T>A		5_prime_UTR	Exon 1 of 2	NP_004307.2	P50553
	PAH	NM_001354304.2		c.-96+147A>T		intron	N/A	NP_001341233.1	P00439

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ASCL1	ENST00000266744.4	TSL:1 MANE Select	c.-197T>A		5_prime_UTR	Exon 1 of 2	ENSP00000266744.3	P50553
	PAH	ENST00000551337.5	TSL:3	c.-96+147A>T		intron	N/A	ENSP00000447620.1	F8W0A0
	PAH	ENST00000547319.1	TSL:4	n.216+147A>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151870 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000484

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 255960 Hom.: 0 Cov.: 4 AF XY: 0.00 AC XY: 0 AN XY: 130180

African (AFR) AF: 0.00 AC: 0 AN: 6924

American (AMR) AF: 0.00 AC: 0 AN: 6998

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 8780

East Asian (EAS) AF: 0.00 AC: 0 AN: 21688

South Asian (SAS) AF: 0.00 AC: 0 AN: 4022

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 20926

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1278

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 168996

Other (OTH) AF: 0.00 AC: 0 AN: 16348

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151870 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74184

African (AFR) AF: 0.0000484 AC: 2 AN: 41330

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5156

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10582

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67914

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 35582

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	13
DANN	Benign	0.74
PhyloP100		0.36
PromoterAI		-0.079	Neutral

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: rs9782; hg19: chr12-103351826;