chr12-57567196-G-T

Variant names:

• chr12-57567196-G-T
• rs1488871976
• NM_004984.4:c.572G>T

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_004984.4(KIF5A):​c.572G>T​(p.Arg191Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R191H) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: KIF5A NM_004984.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.82
• Publications: 0 publications found

Genes affected

KIF5A (HGNC:6323): (kinesin family member 5A) This gene encodes a member of the kinesin family of proteins. Members of this family are part of a multisubunit complex that functions as a microtubule motor in intracellular organelle transport. Mutations in this gene cause autosomal dominant spastic paraplegia 10. [provided by RefSeq, Jul 2008]

KIF5A Gene-Disease associations (from GenCC):

• amyotrophic lateral sclerosis, susceptibility to, 25

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Illumina, Labcorp Genetics (formerly Invitae)
• inherited neurodegenerative disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• myoclonus, intractable, neonatal

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, G2P, Labcorp Genetics (formerly Invitae)
• hereditary spastic paraplegia 10

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• autosomal dominant Charcot-Marie-Tooth disease type 2 due to KIF5A mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr12-57567196-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 424697.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.974

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004984.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF5A	NM_004984.4	MANE Select	c.572G>T	p.Arg191Leu	missense	Exon 7 of 29	NP_004975.2
	KIF5A	NM_001354705.2		c.305G>T	p.Arg102Leu	missense	Exon 4 of 26	NP_001341634.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF5A	ENST00000455537.7	TSL:1 MANE Select	c.572G>T	p.Arg191Leu	missense	Exon 7 of 29	ENSP00000408979.2
	KIF5A	ENST00000674619.1		c.572G>T	p.Arg191Leu	missense	Exon 7 of 30	ENSP00000502270.1
	KIF5A	ENST00000676457.1		c.467G>T	p.Arg156Leu	missense	Exon 6 of 28	ENSP00000501588.1

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460336 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726564

African (AFR) AF: 0.00 AC: 0 AN: 33450

American (AMR) AF: 0.00 AC: 0 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26100

East Asian (EAS) AF: 0.00 AC: 0 AN: 39654

South Asian (SAS) AF: 0.00 AC: 0 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53252

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1110858

Other (OTH) AF: 0.00 AC: 0 AN: 60322

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.43
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D
Eigen	Pathogenic	0.98
Eigen_PC	Pathogenic	0.86
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Pathogenic	0.57	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.84	D
MutationAssessor	Pathogenic	3.3	M
PhyloP100		9.8
PrimateAI	Pathogenic	0.81	D
PROVEAN	Pathogenic	-6.5	D
REVEL	Pathogenic	0.96
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.84		Gain of catalytic residue at N190 (P = 0.0025)
MVP		0.95
MPC		2.6
ClinPred		1.0	D
GERP RS		4.5
Varity_R		0.92
gMVP		1.0
Mutation Taster		=16/84	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs1488871976; hg19: chr12-57960979;