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GeneBe

1-85324784-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_012137.4(DDAH1):c.697G>A(p.Val233Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000434 in 1,614,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

DDAH1
NM_012137.4 missense

Scores

3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.82
Variant links:
Genes affected
DDAH1 (HGNC:2715): (dimethylarginine dimethylaminohydrolase 1) This gene belongs to the dimethylarginine dimethylaminohydrolase (DDAH) gene family. The encoded enzyme plays a role in nitric oxide generation by regulating cellular concentrations of methylarginines, which in turn inhibit nitric oxide synthase activity. [provided by RefSeq, Jul 2008]
BCL10-AS1 (HGNC:55868): (BCL10 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15925759).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DDAH1NM_012137.4 linkuse as main transcriptc.697G>A p.Val233Ile missense_variant 5/6 ENST00000284031.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DDAH1ENST00000284031.13 linkuse as main transcriptc.697G>A p.Val233Ile missense_variant 5/61 NM_012137.4 P1O94760-1
BCL10-AS1ENST00000426125.1 linkuse as main transcriptn.67+47046C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152122
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.000118
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251470
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000703
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000349
AC:
51
AN:
1461884
Hom.:
0
Cov.:
31
AF XY:
0.0000344
AC XY:
25
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000306
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152122
Hom.:
0
Cov.:
31
AF XY:
0.000135
AC XY:
10
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00143
Alfa
AF:
0.0000763
Hom.:
0
Bravo
AF:
0.000144
ExAC
AF:
0.0000576
AC:
7
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

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 16, 2021The c.697G>A (p.V233I) alteration is located in exon 5 (coding exon 5) of the DDAH1 gene. This alteration results from a G to A substitution at nucleotide position 697, causing the valine (V) at amino acid position 233 to be replaced by an isoleucine (I). 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
Benign
0.11
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.42
Cadd
Benign
20
Dann
Uncertain
0.98
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Benign
0.0042
T
MetaRNN
Benign
0.16
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-0.76
N;N;.;.
REVEL
Benign
0.050
Sift
Benign
0.22
T;T;.;.
Sift4G
Benign
0.51
T;T;T;T
Polyphen
0.0040, 0.0020
.;B;.;B
Vest4
0.39
MVP
0.45
MPC
0.27
ClinPred
0.15
T
GERP RS
5.0
Varity_R
0.27
gMVP
0.48

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: rs755291583; hg19: chr1-85790467; COSMIC: COSV52304565; API