chr2-238848244-C-A

Variant names:

• chr2-238848244-C-A
• rs1275864437
• NM_001271893.4:c.29C>A

Variant summary

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

The NM_001271893.4(TWIST2):​c.29C>A​(p.Ser10Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000447 in 1,343,508 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000045 (0 hom.)
• Consequence: TWIST2 NM_001271893.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.51

Genes affected

TWIST2 (HGNC:20670): (twist family bHLH transcription factor 2) The protein encoded by this gene is a basic helix-loop-helix type transcription factor and shares similarity with Twist. This protein may inhibit osteoblast maturation and maintain cells in a preosteoblast phenotype during osteoblast development. This gene may be upregulated in certain cancers. Mutations in this gene cause focal facial dermal dysplasia 3, Setleis type. Two transcript variants encoding the same protein have been found. [provided by RefSeq, Apr 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TWIST2	NM_001271893.4	c.29C>A	p.Ser10Tyr	missense_variant	Exon 1 of 2	ENST00000612363.2	NP_001258822.1
TWIST2	NM_057179.3	c.29C>A	p.Ser10Tyr	missense_variant	Exon 1 of 2		NP_476527.1
TWIST2	XR_007069137.1	n.160C>A		non_coding_transcript_exon_variant	Exon 1 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TWIST2	ENST00000612363.2	c.29C>A	p.Ser10Tyr	missense_variant	Exon 1 of 2	1	NM_001271893.4	ENSP00000482581.1
TWIST2	ENST00000448943.2	c.29C>A	p.Ser10Tyr	missense_variant	Exon 1 of 2	1		ENSP00000405176.2
TWIST2	ENST00000710607.1	c.29C>A	p.Ser10Tyr	missense_variant	Exon 1 of 2			ENSP00000518373.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000447 AC: 6 AN: 1343508 Hom.: 0 Cov.: 31 AF XY: 0.00000609 AC XY: 4 AN XY: 657066

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: 0.00000380

Gnomad4 OTH exome AF: 0.0000358

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.31
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.24	T;T
Eigen	Pathogenic	0.72
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.94	.;D
M_CAP	Pathogenic	0.89	D
MetaRNN	Uncertain	0.73	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.6	M;M
PrimateAI	Pathogenic	0.90	D
PROVEAN	Benign	-2.0	N;.
REVEL	Pathogenic	0.72
Sift	Uncertain	0.0010	D;.
Sift4G	Uncertain	0.026	D;D
Polyphen		1.0	D;D
Vest4		0.55
MutPred		0.24		Loss of phosphorylation at S10 (P = 0.043);Loss of phosphorylation at S10 (P = 0.043);
MVP		0.99
MPC		3.0
ClinPred		0.96	D
GERP RS		4.7
Varity_R		0.30
gMVP		0.78

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: rs1275864437; hg19: chr2-239756885;