chr12-111418276-A-G

Position:

• chr12-111418276-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005475.3(SH2B3):​c.131A>G​(p.Gln44Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SH2B3 NM_005475.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.68

Genes affected

SH2B3 (HGNC:29605): (SH2B adaptor protein 3) This gene encodes a member of the SH2B adaptor family of proteins, which are involved in a range of signaling activities by growth factor and cytokine receptors. The encoded protein is a key negative regulator of cytokine signaling and plays a critical role in hematopoiesis. Mutations in this gene have been associated with susceptibility to celiac disease type 13 and susceptibility to insulin-dependent diabetes mellitus. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.38760972).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SH2B3	NM_005475.3	c.131A>G	p.Gln44Arg	missense_variant	2/8	ENST00000341259.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SH2B3	ENST00000341259.7	c.131A>G	p.Gln44Arg	missense_variant	2/8	1	NM_005475.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1387996 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 686564

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 09, 2021

The c.131A>G (p.Q44R) alteration is located in exon 2 (coding exon 1) of the SH2B3 gene. This alteration results from a A to G substitution at nucleotide position 131, causing the glutamine (Q) at amino acid position 44 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T
Eigen	Benign	0.11
Eigen_PC	Benign	0.15
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.14	D
MetaRNN	Benign	0.39	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	L
MutationTaster	Benign	0.55	D
PrimateAI	Pathogenic	0.90	D
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.12
Sift	Benign	0.23	T
Sift4G	Benign	0.64	T
Polyphen		0.82	P
Vest4		0.20
MutPred		0.54		Gain of MoRF binding (P = 0.0294);
MVP		0.76
MPC		1.9
ClinPred		0.73	D
GERP RS		4.0
Varity_R		0.16
gMVP		0.29

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: rs1195206241; hg19: chr12-111856080;