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GeneBe

rs200234622

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_144508.5(KNL1):​c.89C>T​(p.Pro30Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000157 in 1,578,184 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

KNL1
NM_144508.5 missense

Scores

4
5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.33
Variant links:
Genes affected
KNL1 (HGNC:24054): (kinetochore scaffold 1) The protein encoded by this gene is a component of the multiprotein assembly that is required for creation of kinetochore-microtubule attachments and chromosome segregation. The encoded protein functions as a scaffold for proteins that influence the spindle assembly checkpoint during the eukaryotic cell cycle and it interacts with at least five different kinetochore proteins and two checkpoint kinases. In adults, this gene is predominantly expressed in normal testes, various cancer cell lines and primary tumors from other tissues and is ubiquitously expressed in fetal tissues. This gene was originally identified as a fusion partner with the mixed-lineage leukemia (MLL) gene in t(11;15)(q23;q14). Mutations in this gene cause autosomal recessive primary microcephaly-4 (MCPH4). Alternative splicing results in multiple transcript variants encoding different isoforms. Additional splice variants have been described but their biological validity has not been confirmed. [provided by RefSeq, Jan 2013]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25432277).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KNL1NM_144508.5 linkuse as main transcriptc.89C>T p.Pro30Leu missense_variant 4/26 ENST00000399668.7
KNL1NM_170589.5 linkuse as main transcriptc.89C>T p.Pro30Leu missense_variant 4/27

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KNL1ENST00000399668.7 linkuse as main transcriptc.89C>T p.Pro30Leu missense_variant 4/261 NM_144508.5 A2Q8NG31-2

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152060
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.000250
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000152
AC:
38
AN:
249248
Hom.:
0
AF XY:
0.000192
AC XY:
26
AN XY:
135236
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000655
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000301
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000158
AC:
226
AN:
1426006
Hom.:
0
Cov.:
24
AF XY:
0.000193
AC XY:
137
AN XY:
711106
show subpopulations
Gnomad4 AFR exome
AF:
0.0000304
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000704
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000187
Gnomad4 OTH exome
AF:
0.000186
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.000391
Hom.:
1
Bravo
AF:
0.000147
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000370
AC:
3
ExAC
AF:
0.000190
AC:
23

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoDec 03, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.72
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Benign
0.30
T;T;.
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.84
T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.25
T;T;T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-5.2
D;D;D
REVEL
Benign
0.18
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.50
MVP
0.67
MPC
0.28
ClinPred
0.73
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.65
gMVP
0.48

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs200234622; hg19: chr15-40898604; COSMIC: COSV61150559; API