chr14-103562786-C-A

Position:

• chr14-103562786-C-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The ENST00000557172.5(KLC1):​c.-2+802C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00991 in 485,342 control chromosomes in the GnomAD database, including 210 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.026 (165 hom., cov: 33)
  • Exomes 𝑓: 0.0028 (45 hom.)
• Consequence: KLC1 ENST00000557172.5 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.687

Genes affected

KLC1 (HGNC:6387): (kinesin light chain 1) Conventional kinesin is a tetrameric molecule composed of two heavy chains and two light chains, and transports various cargos along microtubules toward their plus ends. The heavy chains provide the motor activity, while the light chains bind to various cargos. This gene encodes a member of the kinesin light chain family. It associates with kinesin heavy chain through an N-terminal domain, and six tetratricopeptide repeat (TPR) motifs are thought to be involved in binding of cargos such as vesicles, mitochondria, and the Golgi complex. Thus, kinesin light chains function as adapter molecules and not motors per se. Although previously named "kinesin 2", this gene is not a member of the kinesin-2 / kinesin heavy chain subfamily of kinesin motor proteins. Extensive alternative splicing produces isoforms with different C-termini that are proposed to bind to different cargos; however, the full-length nature and/or biological validity of most of these variants have not been determined. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.71).
• BP6: Variant 14-103562786-C-A is Benign according to our data. Variant chr14-103562786-C-A is described in ClinVar as [Benign]. Clinvar id is 673113.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0857 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
		n.103562786C>A		intergenic_region

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KLC1	ENST00000557172.5	c.-2+802C>A		intron_variant		4		ENSP00000450786.1

Frequencies

GnomAD3 genomes AF: 0.0254 AC: 3864 AN: 151852 Hom.: 165 Cov.: 33

Gnomad AFR AF: 0.0881

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00998

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0191

Gnomad NFE AF: 0.000250

Gnomad OTH AF: 0.0206

GnomAD4 exome AF: 0.00280 AC: 933 AN: 333380 Hom.: 45 Cov.: 6 AF XY: 0.00264 AC XY: 436 AN XY: 165116

Gnomad4 AFR exome AF: 0.0960

Gnomad4 AMR exome AF: 0.00858

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000192

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000170

Gnomad4 OTH exome AF: 0.00708

GnomAD4 genome AF: 0.0255 AC: 3876 AN: 151962 Hom.: 165 Cov.: 33 AF XY: 0.0255 AC XY: 1891 AN XY: 74286

Gnomad4 AFR AF: 0.0881

Gnomad4 AMR AF: 0.00996

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: 0.0204

Alfa AF: 0.0219 Hom.: 15

Bravo AF: 0.0298

Asia WGS AF: 0.00668 AC: 23 AN: 3454

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 14, 2018

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.71
CADD	Benign	2.9
DANN	Benign	0.89

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

Other links and lift over

dbSNP: rs145083096; hg19: chr14-104029123;