chr6-45406277-A-G

Variant names:

• chr6-45406277-A-G
• rs16873396
• NM_001024630.4:c.59-16316A>G

Variant summary

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

The NM_001024630.4(RUNX2):​c.59-16316A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0573 in 152,262 control chromosomes in the GnomAD database, including 683 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 0.057 (683 hom., cov: 32)
• Consequence: RUNX2 NM_001024630.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.864
• Publications: 2 publications found

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]

RUNX2 Gene-Disease associations (from GenCC):

• cleidocranial dysplasia 1

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae)
• metaphyseal dysplasia-maxillary hypoplasia-brachydacty syndrome

  Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.166 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RUNX2	NM_001024630.4	c.59-16316A>G		intron_variant	Intron 2 of 8	ENST00000647337.2	NP_001019801.3
RUNX2	NM_001015051.4	c.59-16316A>G		intron_variant	Intron 2 of 7		NP_001015051.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RUNX2	ENST00000647337.2	c.59-16316A>G		intron_variant	Intron 2 of 8		NM_001024630.4	ENSP00000495497.1

Frequencies

GnomAD3 genomes AF: 0.0571 AC: 8689 AN: 152144 Hom.: 677 Cov.: 32

Gnomad AFR AF: 0.169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0507

Gnomad ASJ AF: 0.00346

Gnomad EAS AF: 0.101

Gnomad SAS AF: 0.0255

Gnomad FIN AF: 0.000188

Gnomad MID AF: 0.0222

Gnomad NFE AF: 0.00219

Gnomad OTH AF: 0.0449

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

GnomAD4 genome AF: 0.0573 AC: 8731 AN: 152262 Hom.: 683 Cov.: 32 AF XY: 0.0572 AC XY: 4259 AN XY: 74460

African (AFR) AF: 0.170 AC: 7043 AN: 41500

American (AMR) AF: 0.0506 AC: 775 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00346 AC: 12 AN: 3472

East Asian (EAS) AF: 0.102 AC: 527 AN: 5186

South Asian (SAS) AF: 0.0249 AC: 120 AN: 4826

European-Finnish (FIN) AF: 0.000188 AC: 2 AN: 10620

Middle Eastern (MID) AF: 0.0272 AC: 8 AN: 294

European-Non Finnish (NFE) AF: 0.00219 AC: 149 AN: 68030

Other (OTH) AF: 0.0449 AC: 95 AN: 2116

Alfa AF: 0.0300 Hom.: 513

Bravo AF: 0.0665

Asia WGS AF: 0.0680 AC: 235 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	4.9
DANN	Benign	0.72
PhyloP100		0.86
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: rs16873396; hg19: chr6-45374014;