11-64767045-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6_ModerateBS2

The ENST00000377394.7(SF1):​c.1441G>A​(p.Ala481Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000356 in 1,405,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. A481A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

SF1
ENST00000377394.7 missense

Scores

1
2
13

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0890
Variant links:
Genes affected
SF1 (HGNC:12950): (splicing factor 1) This gene encodes a nuclear pre-mRNA splicing factor. The encoded protein specifically recognizes the intron branch point sequence at the 3' splice site, together with the large subunit of U2 auxiliary factor (U2AF), and is required for the early stages of spliceosome assembly. It also plays a role in nuclear pre-mRNA retention and transcriptional repression. The encoded protein contains an N-terminal U2AF ligand motif, a central hnRNP K homology motif and quaking 2 region which bind a key branch-site adenosine within the branch point sequence, a zinc knuckles domain, and a C-terminal proline-rich domain. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13655889).
BP6
Variant 11-64767045-C-T is Benign according to our data. Variant chr11-64767045-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3160784.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SF1NM_004630.4 linkuse as main transcriptc.1437G>A p.Pro479= synonymous_variant 12/13 ENST00000377390.8 NP_004621.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SF1ENST00000377390.8 linkuse as main transcriptc.1437G>A p.Pro479= synonymous_variant 12/131 NM_004630.4 ENSP00000366607 A1Q15637-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000356
AC:
5
AN:
1405062
Hom.:
0
Cov.:
35
AF XY:
0.00000289
AC XY:
2
AN XY:
692864
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:
0.0000383
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000185
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 17, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.00059
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
6.4
DANN
Uncertain
0.99
DEOGEN2
Benign
0.016
.;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.46
T;T
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;D;D;D;D;D;N
PROVEAN
Benign
-0.090
N;N
REVEL
Benign
0.044
Sift
Pathogenic
0.0
D;D
Sift4G
Benign
0.28
T;.
Polyphen
0.55
P;.
Vest4
0.36
MutPred
0.28
Gain of loop (P = 0.0079);.;
MVP
0.41
ClinPred
0.19
T
GERP RS
0.52
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
3.2

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: rs1223525577; hg19: chr11-64534517; API