rs1321075

Positions:

• chr6-45424206-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001024630.4(RUNX2):​c.423+1249T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.839 in 152,128 control chromosomes in the GnomAD database, including 53,691 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 0.84 (53691 hom., cov: 32)
• Consequence: RUNX2 NM_001024630.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0560

Genes affected

RUNX2 (HGNC:10472): (RUNX family transcription factor 2) This gene is a member of the RUNX family of transcription factors and encodes a nuclear protein with an Runt DNA-binding domain. This protein is essential for osteoblastic differentiation and skeletal morphogenesis and acts as a scaffold for nucleic acids and regulatory factors involved in skeletal gene expression. The protein can bind DNA both as a monomer or, with more affinity, as a subunit of a heterodimeric complex. Two regions of potential trinucleotide repeat expansions are present in the N-terminal region of the encoded protein, and these and other mutations in this gene have been associated with the bone development disorder cleidocranial dysplasia (CCD). Transcript variants that encode different protein isoforms result from the use of alternate promoters as well as alternate splicing. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.911 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RUNX2	NM_001024630.4	c.423+1249T>G		intron_variant		ENST00000647337.2	NP_001019801.3
RUNX2	NM_001015051.4	c.423+1249T>G		intron_variant			NP_001015051.3
RUNX2	NM_001278478.2	c.381+1249T>G		intron_variant			NP_001265407.1
RUNX2	NM_001369405.1	c.381+1249T>G		intron_variant			NP_001356334.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RUNX2	ENST00000647337.2	c.423+1249T>G		intron_variant			NM_001024630.4	ENSP00000495497	P4

Frequencies

GnomAD3 genomes AF: 0.839 AC: 127534 AN: 152012 Hom.: 53637 Cov.: 32

Gnomad AFR AF: 0.835

Gnomad AMI AF: 0.788

Gnomad AMR AF: 0.755

Gnomad ASJ AF: 0.771

Gnomad EAS AF: 0.749

Gnomad SAS AF: 0.933

Gnomad FIN AF: 0.917

Gnomad MID AF: 0.829

Gnomad NFE AF: 0.853

Gnomad OTH AF: 0.818

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

GnomAD4 genome AF: 0.839 AC: 127645 AN: 152128 Hom.: 53691 Cov.: 32 AF XY: 0.841 AC XY: 62556 AN XY: 74386

Gnomad4 AFR AF: 0.835

Gnomad4 AMR AF: 0.755

Gnomad4 ASJ AF: 0.771

Gnomad4 EAS AF: 0.749

Gnomad4 SAS AF: 0.934

Gnomad4 FIN AF: 0.917

Gnomad4 NFE AF: 0.853

Gnomad4 OTH AF: 0.820

Alfa AF: 0.841 Hom.: 77679

Bravo AF: 0.821

Asia WGS AF: 0.835 AC: 2905 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	7.8
DANN	Benign	0.64

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

Publications

LitVar

Other links and lift over

dbSNP: rs1321075; hg19: chr6-45391943;