12-102958296-C-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_004316.4(ASCL1):​c.52C>A​(p.Pro18Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000753 in 1,327,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

ASCL1
NM_004316.4 missense

Scores

5
4
10

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 1.03
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.38835692).
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASCL1NM_004316.4 linkuse as main transcriptc.52C>A p.Pro18Thr missense_variant 1/2 ENST00000266744.4
PAHNM_001354304.2 linkuse as main transcriptc.-197G>T 5_prime_UTR_variant 1/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASCL1ENST00000266744.4 linkuse as main transcriptc.52C>A p.Pro18Thr missense_variant 1/21 NM_004316.4 P1
PAHENST00000551337.5 linkuse as main transcriptc.-197G>T 5_prime_UTR_variant 1/53
PAHENST00000547319.1 linkuse as main transcriptn.115G>T non_coding_transcript_exon_variant 1/34

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000753
AC:
10
AN:
1327892
Hom.:
0
Cov.:
29
AF XY:
0.00000611
AC XY:
4
AN XY:
654858
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000950
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Congenital central hypoventilation Uncertain:1
Uncertain significance, no assertion criteria providedliterature onlyOMIMDec 01, 2003- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.19
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.36
T
Eigen
Benign
0.025
Eigen_PC
Benign
-0.020
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.43
T
M_CAP
Pathogenic
0.73
D
MetaRNN
Benign
0.39
T
MetaSVM
Uncertain
0.56
D
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
0.92
N
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
-0.26
N
REVEL
Uncertain
0.55
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.53
T
Polyphen
1.0
D
Vest4
0.15
MutPred
0.28
Gain of phosphorylation at P18 (P = 0.0325);
MVP
1.0
MPC
1.1
ClinPred
0.73
D
GERP RS
2.5
Varity_R
0.23
gMVP
0.46

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs267606667; hg19: chr12-103352074; API