2-42048216-C-T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_138370.3(PKDCC):​c.17C>T​(p.Ala6Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000952 in 1,207,444 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A6T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 30)
Exomes 𝑓: 0.000052 ( 1 hom. )

Consequence

PKDCC
NM_138370.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.409

Publications

1 publications found
Variant links:
Genes affected
PKDCC (HGNC:25123): (protein kinase domain containing, cytoplasmic) Enables non-membrane spanning protein tyrosine kinase activity. Involved in peptidyl-tyrosine phosphorylation and skeletal system development. Located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]
PKDCC Gene-Disease associations (from GenCC):
  • rhizomelic limb shortening with dysmorphic features
    Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04208821).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00041 (60/146448) while in subpopulation AFR AF = 0.00135 (55/40808). AF 95% confidence interval is 0.00106. There are 0 homozygotes in GnomAd4. There are 28 alleles in the male GnomAd4 subpopulation. Median coverage is 30. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138370.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKDCC
NM_138370.3
MANE Select
c.17C>Tp.Ala6Val
missense
Exon 1 of 7NP_612379.2Q504Y2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PKDCC
ENST00000294964.6
TSL:1 MANE Select
c.17C>Tp.Ala6Val
missense
Exon 1 of 7ENSP00000294964.5Q504Y2
PKDCC
ENST00000914294.1
c.17C>Tp.Ala6Val
missense
Exon 1 of 7ENSP00000584353.1
PKDCC
ENST00000953637.1
c.17C>Tp.Ala6Val
missense
Exon 1 of 7ENSP00000623696.1

Frequencies

GnomAD3 genomes
AF:
0.000383
AC:
56
AN:
146348
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.00125
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000203
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000494
GnomAD2 exomes
AF:
0.0000327
AC:
1
AN:
30624
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:
0.00
GnomAD4 exome
AF:
0.0000518
AC:
55
AN:
1060996
Hom.:
1
Cov.:
31
AF XY:
0.0000543
AC XY:
28
AN XY:
515532
show subpopulations
African (AFR)
AF:
0.00181
AC:
37
AN:
20450
American (AMR)
AF:
0.000157
AC:
2
AN:
12766
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
12802
East Asian (EAS)
AF:
0.00
AC:
0
AN:
17880
South Asian (SAS)
AF:
0.0000511
AC:
2
AN:
39112
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
18616
Middle Eastern (MID)
AF:
0.000752
AC:
2
AN:
2658
European-Non Finnish (NFE)
AF:
0.00000223
AC:
2
AN:
897584
Other (OTH)
AF:
0.000256
AC:
10
AN:
39128
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.000410
AC:
60
AN:
146448
Hom.:
0
Cov.:
30
AF XY:
0.000393
AC XY:
28
AN XY:
71306
show subpopulations
African (AFR)
AF:
0.00135
AC:
55
AN:
40808
American (AMR)
AF:
0.000203
AC:
3
AN:
14796
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3384
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4980
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4792
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8660
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
65788
Other (OTH)
AF:
0.000489
AC:
1
AN:
2046
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
3
6
9
12
15
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:
0.000393
ExAC
AF:
0.0000706
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.047
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.43
FATHMM_MKL
Benign
0.083
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.042
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N
PhyloP100
0.41
PrimateAI
Uncertain
0.79
T
PROVEAN
Benign
-0.30
N
REVEL
Benign
0.036
Sift
Benign
0.82
T
Sift4G
Benign
1.0
T
Polyphen
0.14
B
Vest4
0.072
MutPred
0.26
Loss of helix (P = 0.0138)
MVP
0.52
MPC
1.8
ClinPred
0.065
T
GERP RS
2.6
PromoterAI
-0.12
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3
Varity_R
0.057
gMVP
0.29
Mutation Taster
=83/17
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: rs758398844; hg19: chr2-42275356; API