chr22-30346418-T-C
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3
The NM_005877.6(SF3A1):c.287A>G(p.His96Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )
Consequence
SF3A1
NM_005877.6 missense
NM_005877.6 missense
Scores
7
9
3
Clinical Significance
Conservation
PhyloP100: 7.83
Genes affected
SF3A1 (HGNC:10765): (splicing factor 3a subunit 1) This gene encodes a subunit of the splicing factor 3a protein complex. The splicing factor 3a heterotrimer is a component of the mature U2 small nuclear ribonucleoprotein particle (snRNP). U2 small nuclear ribonucleoproteins play a critical role in spliceosome assembly and pre-mRNA splicing. [provided by RefSeq, Aug 2014]
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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;
PP2
?
Missense variant where missense usually causes diseases, SF3A1
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.814
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SF3A1 | NM_005877.6 | c.287A>G | p.His96Arg | missense_variant | 3/16 | ENST00000215793.13 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SF3A1 | ENST00000215793.13 | c.287A>G | p.His96Arg | missense_variant | 3/16 | 1 | NM_005877.6 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000658 AC: 1AN: 152050Hom.: 0 Cov.: 32
GnomAD3 genomes
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251488Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135916
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461870Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727236
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GnomAD4 genome ? AF: 0.00000658 AC: 1AN: 152050Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74284
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 20, 2022 | The c.287A>G (p.H96R) alteration is located in exon 3 (coding exon 3) of the SF3A1 gene. This alteration results from a A to G substitution at nucleotide position 287, causing the histidine (H) at amino acid position 96 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Uncertain
T
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D
M_CAP
Benign
T
MetaRNN
Pathogenic
D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
D;D
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D
REVEL
Uncertain
Sift
Uncertain
D
Sift4G
Uncertain
T
Polyphen
D
Vest4
MutPred
Gain of MoRF binding (P = 0.0452);
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at