11-46760709-T-C

Position:

• chr11-46760709-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001008938.4(CKAP5):​c.4297A>G​(p.Lys1433Glu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CKAP5 NM_001008938.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.12

Genes affected

CKAP5 (HGNC:28959): (cytoskeleton associated protein 5) This gene encodes a cytoskeleton-associated protein which belongs to the TOG/XMAP215 family. The N-terminal half of this protein contains a microtubule-binding domain and the C-terminal half contains a KXGS motif for binding tubulin dimers. This protein has two distinct roles in spindle formation; it protects kinetochore microtubules from depolymerization and plays an essential role in centrosomal microtubule assembly. This protein may be necessary for the proper interaction of microtubules with the cell cortex for directional cell movement. It also plays a role in translation of the myelin basic protein (MBP) mRNA by interacting with heterogeneous nuclear ribonucleoprotein (hnRNP) A2, which associates with MBP. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

ACMG classification

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=0.17589766).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CKAP5	NM_001008938.4	c.4297A>G	p.Lys1433Glu	missense_variant	33/44	ENST00000529230.6	NP_001008938.1
CKAP5	NM_014756.4	c.4297A>G	p.Lys1433Glu	missense_variant	33/43		NP_055571.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CKAP5	ENST00000529230.6	c.4297A>G	p.Lys1433Glu	missense_variant	33/44	5	NM_001008938.4	ENSP00000432768	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 22, 2023

The c.4297A>G (p.K1433E) alteration is located in exon 33 (coding exon 32) of the CKAP5 gene. This alteration results from a A to G substitution at nucleotide position 4297, causing the lysine (K) at amino acid position 1433 to be replaced by a glutamic acid (E). 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	0.24
BayesDel_addAF	Benign	-0.070	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.079	T;.;.
Eigen	Benign	-0.031
Eigen_PC	Benign	0.19
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.69	T;T;.
M_CAP	Benign	0.0056	T
MetaRNN	Benign	0.18	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L;L;L
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.67	N;N;N
REVEL	Benign	0.11
Sift	Benign	0.33	T;T;T
Sift4G	Benign	0.25	T;T;T
Polyphen		0.30	B;B;B
Vest4		0.37
MutPred		0.25		Loss of MoRF binding (P = 0.0013);Loss of MoRF binding (P = 0.0013);Loss of MoRF binding (P = 0.0013);
MVP		0.47
MPC		0.97
ClinPred		0.57	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.2
Varity_R		0.19
gMVP		0.21

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-46782259;