rs1472899

Variant names:

• chr12-88557708-C-T
• rs1472899
• NM_000899.5:c.16-11843G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000899.5(KITLG):​c.16-11843G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.655 in 151,930 control chromosomes in the GnomAD database, including 36,439 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.66 (36439 hom., cov: 31)
• Consequence: KITLG NM_000899.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.190
• Publications: 11 publications found

Genes affected

KITLG (HGNC:6343): (KIT ligand) This gene encodes the ligand of the tyrosine-kinase receptor encoded by the KIT locus. This ligand is a pleiotropic factor that acts in utero in germ cell and neural cell development, and hematopoiesis, all believed to reflect a role in cell migration. In adults, it functions pleiotropically, while mostly noted for its continued requirement in hematopoiesis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

KITLG Gene-Disease associations (from GenCC):

• autosomal dominant nonsyndromic hearing loss 69

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• hyperpigmentation with or without hypopigmentation, familial progressive

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• autosomal dominant nonsyndromic hearing loss

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial progressive hyper- and hypopigmentation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial progressive hyperpigmentation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Waardenburg syndrome type 2

  Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, G2P
• nonsyndromic genetic hearing loss

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• Waardenburg syndrome, IIa 2F

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.793 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000899.5. 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
	KITLG	NM_000899.5	MANE Select	c.16-11843G>A		intron	N/A	NP_000890.1	P21583-1
	KITLG	NM_003994.6		c.16-11843G>A		intron	N/A	NP_003985.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KITLG	ENST00000644744.1	MANE Select	c.16-11843G>A		intron	N/A	ENSP00000495951.1	P21583-1
	KITLG	ENST00000347404.10	TSL:1	c.16-11843G>A		intron	N/A	ENSP00000054216.5	P21583-2
	KITLG	ENST00000874530.1		c.16-11843G>A		intron	N/A	ENSP00000544589.1

Frequencies

GnomAD3 genomes AF: 0.656 AC: 99536 AN: 151812 Hom.: 36435 Cov.: 31

Gnomad AFR AF: 0.295

Gnomad AMI AF: 0.752

Gnomad AMR AF: 0.780

Gnomad ASJ AF: 0.856

Gnomad EAS AF: 0.722

Gnomad SAS AF: 0.795

Gnomad FIN AF: 0.783

Gnomad MID AF: 0.842

Gnomad NFE AF: 0.798

Gnomad OTH AF: 0.696

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.655 AC: 99559 AN: 151930 Hom.: 36439 Cov.: 31 AF XY: 0.660 AC XY: 49072 AN XY: 74298

African (AFR) AF: 0.294 AC: 12173 AN: 41358

American (AMR) AF: 0.780 AC: 11900 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.856 AC: 2968 AN: 3468

East Asian (EAS) AF: 0.722 AC: 3723 AN: 5158

South Asian (SAS) AF: 0.797 AC: 3844 AN: 4822

European-Finnish (FIN) AF: 0.783 AC: 8277 AN: 10572

Middle Eastern (MID) AF: 0.847 AC: 249 AN: 294

European-Non Finnish (NFE) AF: 0.798 AC: 54268 AN: 67974

Other (OTH) AF: 0.697 AC: 1471 AN: 2110

Alfa AF: 0.757 Hom.: 17020

Bravo AF: 0.636

Asia WGS AF: 0.721 AC: 2507 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	1.5
DANN	Benign	0.61
PhyloP100		-0.19
Mutation Taster		=100/0	polymorphism (auto)

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: rs1472899; hg19: chr12-88951485;