rs181743799

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_StrongBP6BP7BS2_Supporting

The NM_001370658.1(BTD):​c.339G>A​(p.Pro113=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0003 in 1,614,026 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P113P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0013 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 2 hom. )

Consequence

BTD
NM_001370658.1 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -4.50
Variant links:
Genes affected
BTD (HGNC:1122): (biotinidase) The protein encoded by this gene functions to recycle protein-bound biotin by cleaving biocytin (biotin-epsilon-lysine), a normal product of carboxylase degradation, resulting in regeneration of free biotin. The encoded protein has also been shown to have biotinyl transferase activity. Mutations in this gene are associated with biotinidase deficiency. Multiple transcript variants encoding different isoforms have been described. [provided by RefSeq, Aug 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 3-15641997-G-A is Benign according to our data. Variant chr3-15641997-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 196203.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-4.5 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BTDNM_001370658.1 linkuse as main transcriptc.339G>A p.Pro113= synonymous_variant 3/4 ENST00000643237.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BTDENST00000643237.3 linkuse as main transcriptc.339G>A p.Pro113= synonymous_variant 3/4 NM_001370658.1 P1P43251-4

Frequencies

GnomAD3 genomes
AF:
0.00130
AC:
197
AN:
152074
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0121
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000945
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000649
AC:
163
AN:
251300
Hom.:
1
AF XY:
0.000545
AC XY:
74
AN XY:
135816
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00422
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000370
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000196
AC:
287
AN:
1461834
Hom.:
2
Cov.:
31
AF XY:
0.000173
AC XY:
126
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00496
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000225
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.000281
GnomAD4 genome
AF:
0.00129
AC:
197
AN:
152192
Hom.:
1
Cov.:
32
AF XY:
0.00187
AC XY:
139
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.0121
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000945
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.0000772
Hom.:
0
Bravo
AF:
0.00123
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Biotinidase deficiency Benign:2
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 28, 2022- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 02, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
0.20
DANN
Benign
0.51
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs181743799; hg19: chr3-15683504; COSMIC: COSV100329441; API