chr22-26434424-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_020437.5(ASPHD2):​c.809G>A​(p.Cys270Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ASPHD2
NM_020437.5 missense

Scores

5
5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.13
Variant links:
Genes affected
ASPHD2 (HGNC:30437): (aspartate beta-hydroxylase domain containing 2) Predicted to enable dioxygenase activity and metal ion binding activity. Predicted to be involved in peptidyl-amino acid modification. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.836

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ASPHD2NM_020437.5 linkuse as main transcriptc.809G>A p.Cys270Tyr missense_variant 2/4 ENST00000215906.6 NP_065170.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASPHD2ENST00000215906.6 linkuse as main transcriptc.809G>A p.Cys270Tyr missense_variant 2/41 NM_020437.5 ENSP00000215906 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249498
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
135004
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000894
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461792
Hom.:
0
Cov.:
34
AF XY:
0.00000550
AC XY:
4
AN XY:
727186
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:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 20, 2023The c.809G>A (p.C270Y) alteration is located in exon 2 (coding exon 1) of the ASPHD2 gene. This alteration results from a G to A substitution at nucleotide position 809, causing the cysteine (C) at amino acid position 270 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Pathogenic
30
DANN
Uncertain
0.99
DEOGEN2
Benign
0.050
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.014
T
MetaRNN
Pathogenic
0.84
D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-2.0
N
REVEL
Uncertain
0.47
Sift
Benign
0.18
T
Sift4G
Benign
0.33
T
Polyphen
1.0
D
Vest4
0.91
MutPred
0.54
Loss of stability (P = 0.1211);
MVP
0.33
MPC
1.9
ClinPred
0.79
D
GERP RS
4.8
Varity_R
0.54
gMVP
0.95

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: rs775505033; hg19: chr22-26830390; COSMIC: COSV53219053; API