rs104893989

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 6P and 4B. PM1PM5PP3_ModerateBS2

The NM_001024630.4(RUNX2):​c.524T>C​(p.Met175Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000294 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M175K) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

RUNX2
NM_001024630.4 missense

Scores

14
3
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.64
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1
In a domain Runt (size 128) in uniprot entity RUNX2_HUMAN there are 37 pathogenic changes around while only 0 benign (100%) in NM_001024630.4
PM5
Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.934
BS2
High AC in GnomAdExome4 at 43 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RUNX2NM_001024630.4 linkc.524T>C p.Met175Thr missense_variant Exon 4 of 9 ENST00000647337.2 NP_001019801.3 Q13950-1
RUNX2NM_001369405.1 linkc.482T>C p.Met161Thr missense_variant Exon 2 of 7 NP_001356334.1
RUNX2NM_001015051.4 linkc.524T>C p.Met175Thr missense_variant Exon 4 of 8 NP_001015051.3 Q13950-3
RUNX2NM_001278478.2 linkc.482T>C p.Met161Thr missense_variant Exon 2 of 6 NP_001265407.1 Q32MY8A0A0D9SEN7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RUNX2ENST00000647337.2 linkc.524T>C p.Met175Thr missense_variant Exon 4 of 9 NM_001024630.4 ENSP00000495497.1 Q13950-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251452
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135896
show subpopulations
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000294
AC:
43
AN:
1461862
Hom.:
0
Cov.:
32
AF XY:
0.0000316
AC XY:
23
AN XY:
727234
show subpopulations
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000306
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Mar 14, 2025
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.524T>C (p.M175T) alteration is located in exon 4 (coding exon 3) of the RUNX2 gene. This alteration results from a T to C substitution at nucleotide position 524, causing the methionine (M) at amino acid position 175 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Sep 28, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant disrupts the p.Met175 amino acid residue in RUNX2. Other variant(s) that disrupt this residue have been observed in individuals with RUNX2-related conditions (PMID: 9207800, 20648631, 32360898), which suggests that this may be a clinically significant amino acid residue. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RUNX2 protein function. This variant has not been reported in the literature in individuals affected with RUNX2-related conditions. This variant is present in population databases (rs104893989, gnomAD 0.004%). This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 175 of the RUNX2 protein (p.Met175Thr). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.50
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
1.0
.;D;D;D;.;D;.;D
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;.;.;D;.;D;D;D
M_CAP
Pathogenic
0.87
D
MetaRNN
Pathogenic
0.93
D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Benign
2.0
M;M;M;M;M;.;.;.
PrimateAI
Pathogenic
0.93
D
PROVEAN
Pathogenic
-5.3
.;D;.;D;D;.;D;.
REVEL
Pathogenic
0.95
Sift
Uncertain
0.0040
.;D;.;D;D;.;D;.
Sift4G
Pathogenic
0.0010
D;D;.;D;D;D;D;D
Polyphen
0.96, 1.0
.;D;D;D;.;.;D;.
Vest4
0.93
MVP
0.98
MPC
1.7
ClinPred
0.89
D
GERP RS
5.2
Varity_R
0.84
gMVP
0.99

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs104893989; hg19: chr6-45399700; API