chr13-30241072-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032116.5(KATNAL1):​c.507G>T​(p.Met169Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,612,810 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

KATNAL1
NM_032116.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.638
Variant links:
Genes affected
KATNAL1 (HGNC:28361): (katanin catalytic subunit A1 like 1) Enables identical protein binding activity and microtubule-severing ATPase activity. Involved in microtubule severing. Located in cytoplasm; microtubule; and spindle pole. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.027624369).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KATNAL1NM_032116.5 linkuse as main transcriptc.507G>T p.Met169Ile missense_variant 5/11 ENST00000380615.8
LOC102723381XR_007063741.1 linkuse as main transcriptn.280-182C>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KATNAL1ENST00000380615.8 linkuse as main transcriptc.507G>T p.Met169Ile missense_variant 5/111 NM_032116.5 P1
KATNAL1ENST00000380617.7 linkuse as main transcriptc.507G>T p.Met169Ile missense_variant 5/112 P1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
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:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000320
AC:
8
AN:
250358
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135386
show subpopulations
Gnomad AFR exome
AF:
0.000493
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000103
AC:
15
AN:
1460548
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726570
show subpopulations
Gnomad4 AFR exome
AF:
0.000389
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.000337
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 05, 2023The c.507G>T (p.M169I) alteration is located in exon 5 (coding exon 4) of the KATNAL1 gene. This alteration results from a G to T substitution at nucleotide position 507, causing the methionine (M) at amino acid position 169 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
17
DANN
Benign
0.97
DEOGEN2
Benign
0.020
T;T
Eigen
Benign
-0.36
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.59
D
LIST_S2
Benign
0.43
.;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.028
T;T
MetaSVM
Benign
-0.45
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.59
N;N
REVEL
Benign
0.22
Sift
Benign
0.17
T;T
Sift4G
Benign
0.19
T;T
Polyphen
0.0020
B;B
Vest4
0.093
MutPred
0.23
Loss of helix (P = 0.0558);Loss of helix (P = 0.0558);
MVP
0.39
MPC
0.34
ClinPred
0.052
T
GERP RS
4.6
Varity_R
0.091
gMVP
0.34

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: rs377566091; hg19: chr13-30815209; API