22-38085701-T-C

Position:

• chr22-38085701-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_025045.6(BAIAP2L2):​c.1499A>G​(p.Gln500Arg) 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. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BAIAP2L2 NM_025045.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0780

Genes affected

BAIAP2L2 (HGNC:26203): (BAR/IMD domain containing adaptor protein 2 like 2) The protein encoded by this gene binds phosphoinositides and promotes the formation of planar or curved membrane structures. The encoded protein is found in RAB13-positive vesicles and at intercellular contacts with the plasma membrane. [provided by RefSeq, Dec 2012]

BAIAP2L2 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.056021422).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BAIAP2L2	NM_025045.6	c.1499A>G	p.Gln500Arg	missense_variant	13/14	ENST00000381669.8	NP_079321.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BAIAP2L2	ENST00000381669.8	c.1499A>G	p.Gln500Arg	missense_variant	13/14	1	NM_025045.6	ENSP00000371085.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

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

Jan 23, 2024

The c.1499A>G (p.Q500R) alteration is located in exon 13 (coding exon 13) of the BAIAP2L2 gene. This alteration results from a A to G substitution at nucleotide position 1499, causing the glutamine (Q) at amino acid position 500 to be replaced by an arginine (R). 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	0.087
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	7.3
DANN	Benign	0.73
DEOGEN2	Benign	0.0047	T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.42	T;T
M_CAP	Benign	0.0012	T
MetaRNN	Benign	0.056	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N;.
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-0.27	N;.
REVEL	Benign	0.033
Sift	Benign	0.55	T;.
Sift4G	Benign	0.51	T;T
Polyphen		0.013	B;.
Vest4		0.20
MutPred		0.15		Gain of glycosylation at P499 (P = 0.0571);.;
MVP		0.21
MPC		0.24
ClinPred		0.017	T
GERP RS		0.23
Varity_R		0.14
gMVP		0.067

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-38481708;