chr14-103736034-C-A

Variant names:

• chr14-103736034-C-A
• rs775532323
• NM_015316.3:c.3200G>T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_015316.3(PPP1R13B):​c.3200G>T​(p.Arg1067Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. 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. R1067Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: PPP1R13B NM_015316.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.67

Genes affected

PPP1R13B (HGNC:14950): (protein phosphatase 1 regulatory subunit 13B) This gene encodes a member of the ASPP (apoptosis-stimulating protein of p53) family of p53 interacting proteins. The protein contains four ankyrin repeats and an SH3 domain involved in protein-protein interactions. ASPP proteins are required for the induction of apoptosis by p53-family proteins. They promote DNA binding and transactivation of p53-family proteins on the promoters of proapoptotic genes. Expression of this gene is regulated by the E2F transcription factor. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.4071706).
• BS2: High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPP1R13B	NM_015316.3	c.3200G>T	p.Arg1067Leu	missense_variant	Exon 16 of 17	ENST00000202556.14	NP_056131.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PPP1R13B	ENST00000202556.14	c.3200G>T	p.Arg1067Leu	missense_variant	Exon 16 of 17	1	NM_015316.3	ENSP00000202556.9

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249398 Hom.: 0 AF XY: 0.00000739 AC XY: 1 AN XY: 135360

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

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: 0.00000884

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461854 Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4 AN XY: 727234

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000719

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.012	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.34	.;T
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.88	D;D
M_CAP	Benign	0.049	D
MetaRNN	Benign	0.41	T;T
MetaSVM	Benign	-0.94	T
MutationAssessor	Benign	1.7	.;L
PrimateAI	Uncertain	0.49	T
PROVEAN	Uncertain	-3.5	.;D
REVEL	Benign	0.21
Sift	Uncertain	0.0030	.;D
Sift4G	Uncertain	0.026	.;D
Polyphen		0.85	.;P
Vest4		0.62
MutPred		0.61		.;Gain of helix (P = 0.0143);
MVP		0.58
MPC		0.50
ClinPred		0.93	D
GERP RS		4.5
Varity_R		0.37
gMVP		0.73

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs775532323; hg19: chr14-104202371;