2-236195035-G-A

Position:

• chr2-236195035-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_212556.4(ASB18):​c.1238C>T​(p.Ser413Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,460,440 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ASB18 NM_212556.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.89

Genes affected

ASB18 (HGNC:19770): (ankyrin repeat and SOCS box containing 18) The protein encoded by this gene is a member of the ankyrin repeat and SOCS box-containing (ASB) family of proteins. They contain ankyrin repeat sequence and a SOCS box domain. The SOCS box serves to couple suppressor of cytokine signalling (SOCS) proteins and their binding partners with the elongin B and C complex, possibly targeting them for degradation. [provided by RefSeq, Feb 2017]

GBX2-AS1 (HGNC:55714): (GBX2 and ASB18 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ASB18	NM_212556.4	c.1238C>T	p.Ser413Phe	missense_variant	6/6	ENST00000409749.8	NP_997721.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ASB18	ENST00000409749.8	c.1238C>T	p.Ser413Phe	missense_variant	6/6	1	NM_212556.4	ENSP00000386532	P1
GBX2-AS1	ENST00000415226.1	n.223+27366G>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1460440 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 726440

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: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 07, 2022

The c.1238C>T (p.S413F) alteration is located in exon 6 (coding exon 6) of the ASB18 gene. This alteration results from a C to T substitution at nucleotide position 1238, causing the serine (S) at amino acid position 413 to be replaced by a phenylalanine (F). 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	Uncertain	0.43
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	.;T
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.84	T;D
M_CAP	Benign	0.028	D
MetaRNN	Uncertain	0.55	D;D
MetaSVM	Benign	-0.60	T
MutationAssessor	Pathogenic	3.5	.;M
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.45	T
PROVEAN	Pathogenic	-4.8	.;D
REVEL	Benign	0.23
Sift	Pathogenic	0.0	.;D
Sift4G	Pathogenic	0.0010	.;D
Polyphen		0.93	.;P
Vest4		0.74
MVP		0.52
MPC		0.46
ClinPred		0.99	D
GERP RS		4.6
Varity_R		0.58
gMVP		0.47

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-237103678;