5-138179786-C-T

Variant names:

• chr5-138179786-C-T
• rs752408383
• NM_005733.3:c.106C>T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_005733.3(KIF20A):​c.106C>T​(p.Arg36Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R36R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: KIF20A NM_005733.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 1.69
• Publications: 1 publications found

Genes affected

KIF20A (HGNC:9787): (kinesin family member 20A) Enables protein kinase binding activity. Involved in microtubule bundle formation; midbody abscission; and regulation of cytokinesis. Located in several cellular components, including cleavage furrow; intercellular bridge; and midbody. Implicated in restrictive cardiomyopathy. [provided by Alliance of Genome Resources, Apr 2022]

KIF20A Gene-Disease associations (from GenCC):

• familial isolated restrictive cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital heart disease

  Inheritance: AR Classification: LIMITED Submitted by: ClinGen
• cardiomyopathy, familial restrictive, 6

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.11650872).
• BS2: High AC in GnomAdExome4 at 13 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005733.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF20A	NM_005733.3	MANE Select	c.106C>T	p.Arg36Cys	missense	Exon 2 of 19	NP_005724.1	O95235-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF20A	ENST00000394894.8	TSL:1 MANE Select	c.106C>T	p.Arg36Cys	missense	Exon 2 of 19	ENSP00000378356.3	O95235-1
	KIF20A	ENST00000927201.1		c.106C>T	p.Arg36Cys	missense	Exon 2 of 19	ENSP00000597260.1
	KIF20A	ENST00000927194.1		c.106C>T	p.Arg36Cys	missense	Exon 2 of 19	ENSP00000597253.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152004 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000441

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000278 AC: 7 AN: 251392 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000202

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000889 AC: 13 AN: 1461884 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 727244

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000179 AC: 8 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1112004

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152004 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74256

African (AFR) AF: 0.00 AC: 0 AN: 41384

American (AMR) AF: 0.00 AC: 0 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10586

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68004

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000564 Hom.: 0

Bravo AF: 0.0000340

ExAC AF: 0.0000247 AC: 3

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.080	T
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.16
FATHMM_MKL	Benign	0.33	N
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-0.66	T
MutationAssessor	Benign	1.2	L
PhyloP100		1.7
PrimateAI	Benign	0.30	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.075
Sift	Benign	0.071	T
Sift4G	Benign	0.10	T
Polyphen		0.0020	B
Vest4		0.12
MutPred		0.39		Gain of helix (P = 0.027)
MVP		0.80
MPC		1.5
ClinPred		0.50	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.17
gMVP		0.57
Mutation Taster		=89/11	polymorphism

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

Other links and lift over

dbSNP: rs752408383; hg19: chr5-137515475; COSMIC: COSV50161567; COSMIC: COSV50161567;