17-61078357-C-A

Position:

• chr17-61078357-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_017679.5(BCAS3):​c.2155C>A​(p.Pro719Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BCAS3 NM_017679.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.69

Genes affected

BCAS3 (HGNC:14347): (BCAS3 microtubule associated cell migration factor) Enables several functions, including acetyltransferase activator activity; beta-tubulin binding activity; and histone acetyltransferase binding activity. Involved in cellular response to estrogen stimulus; positive regulation of catalytic activity; and positive regulation of transcription by RNA polymerase II. Located in nucleus; phagophore assembly site; and transcriptionally active chromatin. Biomarker of breast cancer. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.861

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BCAS3	NM_017679.5	c.2155C>A	p.Pro719Thr	missense_variant	21/24	ENST00000407086.8	NP_060149.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BCAS3	ENST00000407086.8	c.2155C>A	p.Pro719Thr	missense_variant	21/24	1	NM_017679.5	ENSP00000385323	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 28, 2024

The c.2200C>A (p.P734T) alteration is located in exon 22 (coding exon 21) of the BCAS3 gene. This alteration results from a C to A substitution at nucleotide position 2200, causing the proline (P) at amino acid position 734 to be replaced by a threonine (T). 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	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.25
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	.;.;T;.;.;T;.
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D;D;D;D;D;D;D
M_CAP	Benign	0.063	D
MetaRNN	Pathogenic	0.86	D;D;D;D;D;D;D
MetaSVM	Benign	-0.31	T
MutationAssessor	Uncertain	2.6	.;.;M;M;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Pathogenic	-7.3	.;D;D;.;D;.;.
REVEL	Pathogenic	0.65
Sift	Pathogenic	0.0	.;D;D;.;D;.;.
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D
Polyphen		1.0	D;D;D;D;D;.;.
Vest4		0.87
MutPred		0.47		.;.;Gain of catalytic residue at P734 (P = 0.0202);Gain of catalytic residue at P734 (P = 0.0202);.;.;.;
MVP		0.86
MPC		1.2
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.84
gMVP		0.75

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: chr17-59155718;