9-68780870-G-T

Position:

• chr9-68780870-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_138333.5(PABIR1):​c.706G>T​(p.Gly236Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PABIR1 NM_138333.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.05

Genes affected

PABIR1 (HGNC:23490): (PP2A Aalpha (PPP2R1A) and B55A (PPP2R2A) interacting phosphatase regulator 1) Enables protein serine/threonine phosphatase inhibitor activity. Involved in mitotic G2/M transition checkpoint; positive regulation of cell growth; and positive regulation of proteasomal ubiquitin-dependent protein catabolic process. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

PIP5K1B (HGNC:8995): (phosphatidylinositol-4-phosphate 5-kinase type 1 beta) Predicted to enable 1-phosphatidylinositol-4-phosphate 5-kinase activity. Predicted to be involved in regulation of phosphatidylinositol 3-kinase signaling. Predicted to act upstream of or within phosphatidylinositol biosynthetic process. Located in uropod. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.21424612).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PABIR1	NM_138333.5	c.706G>T	p.Gly236Cys	missense_variant	1/1	ENST00000394264.7
PIP5K1B	NM_003558.4	c.-85-37591G>T		intron_variant		ENST00000265382.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PABIR1	ENST00000394264.7	c.706G>T	p.Gly236Cys	missense_variant	1/1		NM_138333.5	P1
PIP5K1B	ENST00000265382.8	c.-85-37591G>T		intron_variant		1	NM_003558.4	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 09, 2023

The c.706G>T (p.G236C) alteration is located in exon 1 (coding exon 1) of the FAM122A gene. This alteration results from a G to T substitution at nucleotide position 706, causing the glycine (G) at amino acid position 236 to be replaced by a cysteine (C). 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	Benign	0.10
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Benign	-0.33
CADD	Uncertain	23
DANN	Uncertain	0.99
Eigen	Benign	0.049
Eigen_PC	Benign	-0.016
FATHMM_MKL	Benign	0.49	N
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	0.99	N;N;N;N
PrimateAI	Benign	0.47	T
REVEL	Benign	0.17
MVP		0.18
MPC		1.6
ClinPred		0.79	D
GERP RS		2.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.29

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-71395786;