rs142891020

Variant names:

• chr11-9842718-T-C
• rs142891020
• NM_030962.4:c.3163A>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_030962.4(SBF2):​c.3163A>G​(p.Ile1055Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000273 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. I1055I) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000025 (0 hom.)
• Consequence: SBF2 NM_030962.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:6
• Conservation: PhyloP100: 7.72
• Publications: 0 publications found

Genes affected

SBF2 (HGNC:2135): (SET binding factor 2) This gene encodes a pseudophosphatase and member of the myotubularin-related protein family. This gene maps within the CMT4B2 candidate region of chromosome 11p15 and mutations in this gene have been associated with Charcot-Marie-Tooth Disease, type 4B2. [provided by RefSeq, Jul 2008]

SBF2 Gene-Disease associations (from GenCC):

• Charcot-Marie-Tooth disease type 4B2

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, Ambry Genetics, G2P, Orphanet

ENSG00000255476 (HGNC:):

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29385704).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030962.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SBF2	NM_030962.4	MANE Select	c.3163A>G	p.Ile1055Val	missense	Exon 25 of 40	NP_112224.1	Q86WG5-1
	SBF2	NM_001386339.1		c.3163A>G	p.Ile1055Val	missense	Exon 25 of 41	NP_001373268.1	A0A8I5KQ02
	SBF2	NM_001424318.1		c.3199A>G	p.Ile1067Val	missense	Exon 26 of 41	NP_001411247.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SBF2	ENST00000256190.13	TSL:1 MANE Select	c.3163A>G	p.Ile1055Val	missense	Exon 25 of 40	ENSP00000256190.8	Q86WG5-1
	SBF2	ENST00000533770.6	TSL:1	c.3163A>G	p.Ile1055Val	missense	Exon 25 of 26	ENSP00000509247.1	Q86WG5-3
	ENSG00000255476	ENST00000533659.1	TSL:1	n.134+3442T>C		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000525 AC: 8 AN: 152246 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000239 AC: 6 AN: 251384 AF XY: 0.0000368

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000440

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000246 AC: 36 AN: 1461826 Hom.: 0 Cov.: 31 AF XY: 0.0000234 AC XY: 17 AN XY: 727214

African (AFR) AF: 0.0000299 AC: 1 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.0000288 AC: 32 AN: 1111982

Other (OTH) AF: 0.0000331 AC: 2 AN: 60392

GnomAD4 genome AF: 0.0000525 AC: 8 AN: 152246 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74382

African (AFR) AF: 0.00 AC: 0 AN: 41462

American (AMR) AF: 0.0000654 AC: 1 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5208

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2086

Alfa AF: 0.0000823 Hom.: 0

Bravo AF: 0.0000718

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000247 AC: 3

EpiCase AF: 0.000218

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	3	-	not provided (3)
-	1	-	Charcot-Marie-Tooth disease type 4 (1)
-	1	-	Charcot-Marie-Tooth disease type 4B2 (1)
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Uncertain	0.020	T
BayesDel_noAF	Benign	-0.10
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.12	T
Eigen	Benign	-0.0024
Eigen_PC	Benign	0.18
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-0.36	T
MutationAssessor	Benign	1.9	L
PhyloP100		7.7
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-0.28	N
REVEL	Uncertain	0.37
Sift	Benign	0.20	T
Sift4G	Benign	0.34	T
Polyphen		0.10	B
Vest4		0.49
MVP		0.77
MPC		0.15
ClinPred		0.23	T
GERP RS		5.5
Varity_R		0.063
gMVP		0.22
Mutation Taster		=88/12	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: rs142891020; hg19: chr11-9864265;