chr16-27618487-T-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The ENST00000261588.10(KATNIP):ā€‹c.126T>Cā€‹(p.Leu42=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000428 in 1,612,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.000059 ( 0 hom., cov: 32)
Exomes š‘“: 0.000041 ( 0 hom. )

Consequence

KATNIP
ENST00000261588.10 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.194
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 16-27618487-T-C is Benign according to our data. Variant chr16-27618487-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1920658.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.194 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KATNIPNM_015202.5 linkuse as main transcriptc.126T>C p.Leu42= synonymous_variant 3/28 ENST00000261588.10 NP_056017.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KATNIPENST00000261588.10 linkuse as main transcriptc.126T>C p.Leu42= synonymous_variant 3/281 NM_015202.5 ENSP00000261588 P1
KATNIPENST00000568258.5 linkuse as main transcriptc.114T>C p.Leu38= synonymous_variant 2/73 ENSP00000454884
KATNIPENST00000618117.1 linkuse as main transcriptc.18T>C p.Leu6= synonymous_variant 1/35 ENSP00000483214
KATNIPENST00000565672.5 linkuse as main transcriptc.36-10174T>C intron_variant, NMD_transcript_variant 3 ENSP00000455380

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000384
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000716
AC:
18
AN:
251474
Hom.:
0
AF XY:
0.0000883
AC XY:
12
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000123
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000411
AC:
60
AN:
1459776
Hom.:
0
Cov.:
29
AF XY:
0.0000385
AC XY:
28
AN XY:
726342
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000450
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152342
Hom.:
0
Cov.:
32
AF XY:
0.0000805
AC XY:
6
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000987
Hom.:
0
Bravo
AF:
0.0000642
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
7.2
DANN
Benign
0.74

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: rs199519583; hg19: chr16-27629808; API