rs729940

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_001275.4(CHGA):​c.1195C>A​(p.Arg399=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,453,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CHGA
NM_001275.4 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.883
Variant links:
Genes affected
CHGA (HGNC:1929): (chromogranin A) The protein encoded by this gene is a member of the chromogranin/secretogranin family of neuroendocrine secretory proteins. It is found in secretory vesicles of neurons and endocrine cells. This gene product is a precursor to three biologically active peptides; vasostatin, pancreastatin, and parastatin. These peptides act as autocrine or paracrine negative modulators of the neuroendocrine system. Two other peptides, catestatin and chromofungin, have antimicrobial activity and antifungal activity, respectively. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP7
Synonymous conserved (PhyloP=0.883 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHGANM_001275.4 linkuse as main transcriptc.1195C>A p.Arg399= synonymous_variant 7/8 ENST00000216492.10 NP_001266.1
CHGANM_001301690.2 linkuse as main transcriptc.742C>A p.Arg248= synonymous_variant 6/7 NP_001288619.1
CHGAXM_011536370.3 linkuse as main transcriptc.1195C>A p.Arg399= synonymous_variant 8/9 XP_011534672.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHGAENST00000216492.10 linkuse as main transcriptc.1195C>A p.Arg399= synonymous_variant 7/81 NM_001275.4 ENSP00000216492 P1
CHGAENST00000334654.4 linkuse as main transcriptc.742C>A p.Arg248= synonymous_variant 6/71 ENSP00000334023
CHGAENST00000556876.1 linkuse as main transcriptn.413C>A non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1453426
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
722164
show subpopulations
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:
0.0000118
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.02e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
4.5
DANN
Benign
0.76

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs729940; hg19: chr14-93399101; API