rs539899935

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_015202.5(KATNIP):​c.70G>A​(p.Ala24Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,611,938 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

KATNIP
NM_015202.5 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0340

Publications

0 publications found
Variant links:
Genes affected
KATNIP (HGNC:29068): (katanin interacting protein) This gene encodes a novel, evolutionarily conserved, ciliary protein. In human hTERT-RPE1 cells, the protein is found at the base of cilia, decorating the ciliary axoneme, and enriched at the ciliary tip. The protein binds to microtubules in vitro and regulates their stability when it is overexpressed. A null mutation in this gene has been associated with Joubert syndrome, a recessive disorder that is characterized by a distinctive mid-hindbrain and cerebellar malformation and is also often associated with wider ciliopathy symptoms. Consistently, in a serum-starvation ciliogenesis assay, human fibroblast cells derived from patients with the mutation display a reduced number of ciliated cells with abnormally long cilia. [provided by RefSeq, Feb 2016]
KATNIP Gene-Disease associations (from GenCC):
  • ciliopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Joubert syndrome 26
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Joubert syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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=0.006880611).
BP6
Variant 16-27618431-G-A is Benign according to our data. Variant chr16-27618431-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 3112904.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015202.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KATNIP
NM_015202.5
MANE Select
c.70G>Ap.Ala24Thr
missense
Exon 3 of 28NP_056017.4O60303

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KATNIP
ENST00000261588.10
TSL:1 MANE Select
c.70G>Ap.Ala24Thr
missense
Exon 3 of 28ENSP00000261588.4O60303
KATNIP
ENST00000862512.1
c.70G>Ap.Ala24Thr
missense
Exon 3 of 27ENSP00000532571.1
KATNIP
ENST00000568258.5
TSL:3
c.55G>Ap.Ala19Thr
missense
Exon 2 of 7ENSP00000454884.1H3BNJ6

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152174
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:
0.000828
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251462
AF XY:
0.0000883
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:
0.0000288
AC:
42
AN:
1459646
Hom.:
0
Cov.:
29
AF XY:
0.0000386
AC XY:
28
AN XY:
726280
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33442
American (AMR)
AF:
0.00
AC:
0
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39676
South Asian (SAS)
AF:
0.000394
AC:
34
AN:
86196
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53382
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1110050
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.449
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

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:
152292
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74464
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41552
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.000829
AC:
4
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000211
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000988
AC:
12

ClinVar

ClinVar submissions as Germline
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
9.1
DANN
Benign
0.72
DEOGEN2
Benign
0.00063
T
Eigen
Benign
-0.91
Eigen_PC
Benign
-0.70
FATHMM_MKL
Benign
0.091
N
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.0072
T
MetaRNN
Benign
0.0069
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.9
N
PhyloP100
0.034
PrimateAI
Benign
0.29
T
PROVEAN
Benign
0.25
N
REVEL
Benign
0.018
Sift
Benign
0.75
T
Sift4G
Benign
0.85
T
Polyphen
0.0010
B
Vest4
0.15
MutPred
0.18
Gain of phosphorylation at A24 (P = 0.0186)
MVP
0.15
MPC
0.15
ClinPred
0.011
T
GERP RS
2.6
PromoterAI
-0.0012
Neutral
Varity_R
0.017
gMVP
0.031
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs539899935; hg19: chr16-27629752; API