chr12-49642632-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001031698.3(PRPF40B):​c.2075C>T​(p.Ser692Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,614,044 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

PRPF40B
NM_001031698.3 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.30
Variant links:
Genes affected
PRPF40B (HGNC:25031): (pre-mRNA processing factor 40 homolog B) This gene encodes a WW-domain containing protein similar to yeast splicing factor PRP40. This protein has been shown to interact with Huntingtin and methyl CpG binding protein 2 (MeCP2). Alternative splicing results in different transcript variants. [provided by RefSeq, Aug 2014]
FMNL3 (HGNC:23698): (formin like 3) The protein encoded by this gene contains a formin homology 2 domain and has high sequence identity to the mouse Wbp3 protein. Two alternative transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRPF40BNM_001031698.3 linkuse as main transcriptc.2075C>T p.Ser692Leu missense_variant 21/26 ENST00000548825.7 NP_001026868.2
FMNL3NM_175736.5 linkuse as main transcriptc.*3183G>A 3_prime_UTR_variant 26/26 ENST00000335154.10 NP_783863.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PRPF40BENST00000548825.7 linkuse as main transcriptc.2075C>T p.Ser692Leu missense_variant 21/265 NM_001031698.3 ENSP00000448073 P3
FMNL3ENST00000335154.10 linkuse as main transcriptc.*3183G>A 3_prime_UTR_variant 26/261 NM_175736.5 ENSP00000335655 Q8IVF7-3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251074
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461856
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000629
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000247
AC:
3

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 submitterclinical testingAmbry GeneticsNov 27, 2023The c.2009C>T (p.S670L) alteration is located in exon 20 (coding exon 20) of the PRPF40B gene. This alteration results from a C to T substitution at nucleotide position 2009, causing the serine (S) at amino acid position 670 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.54
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.20
T;.;T
Eigen
Pathogenic
0.70
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.46
T;T;T
MetaSVM
Benign
-0.81
T
MutationAssessor
Uncertain
2.3
.;.;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-4.2
.;D;D
REVEL
Benign
0.21
Sift
Uncertain
0.0030
.;D;D
Sift4G
Uncertain
0.0080
D;D;D
Polyphen
0.99, 0.99
.;D;D
Vest4
0.62
MVP
0.21
MPC
0.70
ClinPred
0.88
D
GERP RS
4.8
Varity_R
0.50
gMVP
0.62

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: rs753922520; hg19: chr12-50036415; API