Variant 2-197402760-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_012433.4(SF3B1):c.1873C>A(p.Arg625Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,712 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SF3B1
NM_012433.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.71

Variant links:

Genes affected

SF3B1 (HGNC:10768): (splicing factor 3b subunit 1) This gene encodes subunit 1 of the splicing factor 3b protein complex. Splicing factor 3b, together with splicing factor 3a and a 12S RNA unit, forms the U2 small nuclear ribonucleoproteins complex (U2 snRNP). The splicing factor 3b/3a complex binds pre-mRNA upstream of the intron's branch site in a sequence independent manner and may anchor the U2 snRNP to the pre-mRNA. Splicing factor 3b is also a component of the minor U12-type spliceosome. The carboxy-terminal two-thirds of subunit 1 have 22 non-identical, tandem HEAT repeats that form rod-like, helical structures. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

SF3B1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.912

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
SF3B1	NM_012433.4 linkuse as main transcript	c.1873C>A	p.Arg625Ser	missense_variant	14/25	ENST00000335508.11	NP_036565.2
SF3B1	XM_047443838.1 linkuse as main transcript	c.1435C>A	p.Arg479Ser	missense_variant	11/22		XP_047299794.1
SF3B1	XM_047443839.1 linkuse as main transcript	c.1435C>A	p.Arg479Ser	missense_variant	11/22		XP_047299795.1
SF3B1	XM_047443840.1 linkuse as main transcript	c.1873C>A	p.Arg625Ser	missense_variant	14/22		XP_047299796.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SF3B1	ENST00000335508.11 linkuse as main transcript	c.1873C>A	p.Arg625Ser	missense_variant	14/25	1	NM_012433.4	ENSP00000335321	P1	O75533-1
SF3B1	ENST00000470268.2 linkuse as main transcript	n.3757C>A		non_coding_transcript_exon_variant	13/24	2
SF3B1	ENST00000652026.1 linkuse as main transcript	c.*2940C>A		3_prime_UTR_variant, NMD_transcript_variant	14/25			ENSP00000498652
SF3B1	ENST00000652738.1 linkuse as main transcript	c.*2132C>A		3_prime_UTR_variant, NMD_transcript_variant	15/26			ENSP00000499119

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461712

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727160

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.66

Eigen

Pathogenic

0.69

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

1.0

M_CAP

Pathogenic

0.36

MetaRNN

Pathogenic

0.91

MetaSVM

Uncertain

0.68

MutationAssessor

Pathogenic

3.5

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.90

PROVEAN

Pathogenic

-5.8

REVEL

Pathogenic

0.81

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.94

MutPred

0.69

Loss of methylation at R630 (P = 0.0975);

MVP

0.87

MPC

3.1

ClinPred

0.99

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.97

gMVP

1.0

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over