chr20-5923248-A-T

Variant names:

• chr20-5923248-A-T
• rs236153
• NM_001819.3:c.1104A>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001819.3(CHGB):​c.1104A>T​(p.Glu368Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CHGB NM_001819.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.639

Genes affected

CHGB (HGNC:1930): (chromogranin B) This gene encodes a tyrosine-sulfated secretory protein abundant in peptidergic endocrine cells and neurons. This protein may serve as a precursor for regulatory peptides. [provided by RefSeq, Jan 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10802749).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHGB	NM_001819.3	c.1104A>T	p.Glu368Asp	missense_variant	Exon 4 of 5	ENST00000378961.9	NP_001810.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHGB	ENST00000378961.9	c.1104A>T	p.Glu368Asp	missense_variant	Exon 4 of 5	1	NM_001819.3	ENSP00000368244.4
CHGB	ENST00000455042.1	c.*175A>T		downstream_gene_variant		3		ENSP00000416643.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1461688 Hom.: 0 Cov.: 60 AF XY: 0.00 AC XY: 0 AN XY: 727128

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.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.78
CADD	Benign	11
DANN	Uncertain	0.98
DEOGEN2	Benign	0.24	T
Eigen	Benign	-0.96
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.088	N
LIST_S2	Benign	0.71	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.0	M
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.086
Sift	Benign	0.19	T
Sift4G	Benign	0.30	T
Polyphen		0.75	P
Vest4		0.15
MutPred		0.36		Gain of MoRF binding (P = 0.1083);
MVP		0.32
MPC		0.37
ClinPred		0.66	D
GERP RS		-4.0
Varity_R		0.044
gMVP		0.13

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: rs236153; hg19: chr20-5903894;