Genetic Variant NM_001326.3:c.1685T>G (chr11-33087098-A-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001326.3(CSTF3):c.1685T>G(p.Val562Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V562A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CSTF3
NM_001326.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.32

Publications

0 publications found

Variant links:

Genes affected

CSTF3 (HGNC:2485): (cleavage stimulation factor subunit 3) The protein encoded by this gene is one of three (including CSTF1 and CSTF2) cleavage stimulation factors that combine to form the cleavage stimulation factor complex (CSTF). This complex is involved in the polyadenylation and 3' end cleavage of pre-mRNAs. The encoded protein functions as a homodimer and interacts directly with both CSTF1 and CSTF2 in the CSTF complex. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

CSTF3 links:

TCP11L1 (HGNC:25655): (t-complex 11 like 1) Predicted to be involved in signal transduction. Located in microtubule. [provided by Alliance of Genome Resources, Apr 2022]

TCP11L1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001326.3. 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
	CSTF3	NM_001326.3	MANE Select	c.1685T>G	p.Val562Gly	missense	Exon 18 of 21	NP_001317.1	Q12996-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CSTF3	ENST00000323959.9	TSL:1 MANE Select	c.1685T>G	p.Val562Gly	missense	Exon 18 of 21	ENSP00000315791.4	Q12996-1
CSTF3	ENST00000524827.6	TSL:3	c.1781T>G	p.Val594Gly	missense	Exon 19 of 22	ENSP00000431355.2	E9PLP8
CSTF3	ENST00000954368.1		c.1685T>G	p.Val562Gly	missense	Exon 18 of 21	ENSP00000624427.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111984

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.070

CADD

Uncertain

(source)

DANN

Uncertain

0.97

DEOGEN2

Benign

0.086

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.75

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.54

MetaSVM

Benign

-0.88

MutationAssessor

Benign

1.3

PhyloP100

9.3

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-0.070

REVEL

Benign

0.15

Sift

Benign

0.44

Sift4G

Benign

0.47

Polyphen

0.18

Vest4

0.57

MutPred

0.66

Gain of relative solvent accessibility (P = 0.0215)

MVP

0.47

MPC

1.6

ClinPred

0.77

GERP RS

5.5

Varity_R

0.27

gMVP

0.73

Mutation Taster

=49/51

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over