16-31109254-C-A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS1

The NM_005881.4(BCKDK):​c.31C>A​(p.Pro11Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,546,240 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P11S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

BCKDK
NM_005881.4 missense

Scores

1
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.00200

Publications

1 publications found
Variant links:
Genes affected
BCKDK (HGNC:16902): (branched chain keto acid dehydrogenase kinase) The branched-chain alpha-ketoacid dehydrogenase complex (BCKD) is an important regulator of the valine, leucine, and isoleucine catabolic pathways. The protein encoded by this gene is found in the mitochondrion, where it phosphorylates and inactivates BCKD. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]
BCKDK Gene-Disease associations (from GenCC):
  • branched-chain keto acid dehydrogenase kinase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07045898).
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00001 (14/1394016) while in subpopulation MID AF = 0.000734 (4/5450). AF 95% confidence interval is 0.00025. There are 0 homozygotes in GnomAdExome4. There are 5 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005881.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BCKDK
NM_005881.4
MANE Select
c.31C>Ap.Pro11Thr
missense
Exon 2 of 12NP_005872.2O14874-1
BCKDK
NM_001122957.4
c.31C>Ap.Pro11Thr
missense
Exon 2 of 11NP_001116429.1O14874-3
BCKDK
NM_001271926.3
c.31C>Ap.Pro11Thr
missense
Exon 2 of 10NP_001258855.1O14874-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BCKDK
ENST00000219794.11
TSL:1 MANE Select
c.31C>Ap.Pro11Thr
missense
Exon 2 of 12ENSP00000219794.6O14874-1
BCKDK
ENST00000287507.7
TSL:1
c.31C>Ap.Pro11Thr
missense
Exon 2 of 10ENSP00000287507.3O14874-2
BCKDK
ENST00000394951.5
TSL:5
c.31C>Ap.Pro11Thr
missense
Exon 3 of 13ENSP00000378405.1O14874-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00316
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000539
AC:
1
AN:
185604
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000230
GnomAD4 exome
AF:
0.0000100
AC:
14
AN:
1394016
Hom.:
0
Cov.:
33
AF XY:
0.00000727
AC XY:
5
AN XY:
687796
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31290
American (AMR)
AF:
0.00
AC:
0
AN:
34468
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21946
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39024
South Asian (SAS)
AF:
0.0000258
AC:
2
AN:
77536
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46846
Middle Eastern (MID)
AF:
0.000734
AC:
4
AN:
5450
European-Non Finnish (NFE)
AF:
0.00000648
AC:
7
AN:
1080194
Other (OTH)
AF:
0.0000175
AC:
1
AN:
57262
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.439
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00316
AC:
1
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68048
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000831
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
8.8
DANN
Benign
0.94
DEOGEN2
Benign
0.13
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.26
N
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.070
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L
PhyloP100
0.0020
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.78
N
REVEL
Benign
0.021
Sift
Benign
0.053
T
Sift4G
Benign
0.20
T
Polyphen
0.0010
B
Vest4
0.10
MutPred
0.25
Gain of catalytic residue at P11 (P = 0.0159)
MVP
0.31
MPC
0.62
ClinPred
0.038
T
GERP RS
2.5
PromoterAI
0.019
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.086
gMVP
0.78
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs764651763; hg19: chr16-31120575; API