rs1556457962

Variant names:

• chrX-631133-A-G
• rs1556457962
• NM_000451.4:c.236A>G

Your query was ambiguous. Multiple possible variants found:

• chrX-631133-A-G
• chrX-631133-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_000451.4(SHOX):​c.236A>G​(p.Lys79Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,212 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 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. K79M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom. 1 hem.)
• Consequence: SHOX NM_000451.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.15
• Publications: 0 publications found

Genes affected

SHOX (HGNC:10853): (SHOX homeobox) This gene belongs to the paired homeobox family and is located in the pseudoautosomal region 1 (PAR1) of X and Y chromosomes. Defects in this gene are associated with idiopathic growth retardation and in the short stature phenotype of Turner syndrome patients. This gene is highly conserved across species from mammals to fish to flies. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]

SHOX Gene-Disease associations (from GenCC):

• Leri-Weill dyschondrosteosis

  Inheritance: XL, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Langer mesomelic dysplasia

  Inheritance: Unknown, XL, AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Orphanet, Labcorp Genetics (formerly Invitae)
• SHOX-related short stature

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 17 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: -0.53811 (below the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to Leri-Weill dyschondrosteosis, Langer mesomelic dysplasia, SHOX-related short stature.
• BP4: Computational evidence support a benign effect (MetaRNN=0.19638368).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000451.4. 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
	SHOX	NM_000451.4	MANE Select	c.236A>G	p.Lys79Arg	missense	Exon 1 of 5	NP_000442.1
	SHOX	NM_006883.2		c.236A>G	p.Lys79Arg	missense	Exon 2 of 6	NP_006874.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SHOX	ENST00000686671.1	MANE Select	c.236A>G	p.Lys79Arg	missense	Exon 1 of 5	ENSP00000508521.1
	SHOX	ENST00000381575.6	TSL:1	c.236A>G	p.Lys79Arg	missense	Exon 1 of 5	ENSP00000370987.1
	SHOX	ENST00000381578.6	TSL:5	c.236A>G	p.Lys79Arg	missense	Exon 2 of 6	ENSP00000370990.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461212 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726892

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52986

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111828

Other (OTH) AF: 0.00 AC: 0 AN: 60366

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0296732), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.077
BayesDel_addAF	Benign	-0.035	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	15
DANN	Benign	0.95
DEOGEN2	Benign	0.030	T
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.81	T
M_CAP	Uncertain	0.20	D
MetaRNN	Benign	0.20	T
MetaSVM	Uncertain	-0.28	T
MutationAssessor	Benign	1.8	L
PhyloP100		7.1
PrimateAI	Pathogenic	0.87	D
PROVEAN	Benign	-0.45	N
REVEL	Benign	0.24
Sift	Benign	0.28	T
Sift4G	Benign	0.47	T
Polyphen		0.0010	B
Vest4		0.10
MutPred		0.45		Loss of ubiquitination at K79 (P = 0.0118)
MVP		0.75
MPC		0.47
ClinPred		0.53	D
GERP RS		2.3
PromoterAI		-0.11	Neutral
Varity_R		0.093
Mutation Taster		=86/14	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: rs1556457962; hg19: chrX-591868;