19-919933-G-T

Variant names:

• chr19-919933-G-T
• rs73507527
• NM_032551.5:c.565G>T

Variant summary

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

The NM_032551.5(KISS1R):​c.565G>T​(p.Ala189Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000212 in 1,411,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign 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. A189T) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: KISS1R NM_032551.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.74

Genes affected

KISS1R (HGNC:4510): (KISS1 receptor) The protein encoded by this gene is a galanin-like G protein-coupled receptor that binds metastin, a peptide encoded by the metastasis suppressor gene KISS1. The tissue distribution of the expressed gene suggests that it is involved in the regulation of endocrine function, and this is supported by the finding that this gene appears to play a role in the onset of puberty. Mutations in this gene have been associated with hypogonadotropic hypogonadism and central precocious puberty. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KISS1R	NM_032551.5	c.565G>T	p.Ala189Ser	missense_variant	Exon 4 of 5	ENST00000234371.10	NP_115940.2
KISS1R	XM_047439545.1	c.565G>T	p.Ala189Ser	missense_variant	Exon 4 of 4		XP_047295501.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KISS1R	ENST00000234371.10	c.565G>T	p.Ala189Ser	missense_variant	Exon 4 of 5	1	NM_032551.5	ENSP00000234371.3
KISS1R	ENST00000606939.2	c.505+308G>T		intron_variant	Intron 3 of 3	5		ENSP00000475639.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000603 AC: 1 AN: 165870 Hom.: 0 AF XY: 0.0000109 AC XY: 1 AN XY: 91732

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000407

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000212 AC: 3 AN: 1411888 Hom.: 0 Cov.: 33 AF XY: 0.00000429 AC XY: 3 AN XY: 699166

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000123

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000183

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.070
BayesDel_addAF	Benign	-0.36	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	19
DANN	Benign	0.94
DEOGEN2	Benign	0.084	T
Eigen	Benign	-0.85
Eigen_PC	Benign	-0.71
FATHMM_MKL	Benign	0.49	N
LIST_S2	Benign	0.83	T
M_CAP	Benign	0.050	D
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	0.14	N
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	0.14	N
REVEL	Benign	0.092
Sift	Benign	0.35	T
Sift4G	Benign	0.14	T
Polyphen		0.051	B
Vest4		0.053
MutPred		0.50		Gain of disorder (P = 0.0189);
MVP		0.52
MPC		0.90
ClinPred		0.097	T
GERP RS		2.5
Varity_R		0.078
gMVP		0.30

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.33		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.33		Position offset: 11

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs73507527; hg19: chr19-919933;