NM_017679.5:c.1906C>G

Variant names:

• chr17-61038032-C-G
• rs769939544
• NM_017679.5:c.1906C>G

Variant summary

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

The NM_017679.5(BCAS3):​c.1906C>G​(p.Arg636Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,152 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R636L) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: BCAS3 NM_017679.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.23

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]

BCAS3-AS1 (HGNC:56376): (BCAS3 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCAS3	NM_017679.5	c.1906C>G	p.Arg636Gly	missense_variant	Exon 18 of 24	ENST00000407086.8	NP_060149.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCAS3	ENST00000407086.8	c.1906C>G	p.Arg636Gly	missense_variant	Exon 18 of 24	1	NM_017679.5	ENSP00000385323.2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152152 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249290 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135232

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 Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152152 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74332

Gnomad4 AFR AF: 0.00

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: 0.0000147

Gnomad4 OTH AF: 0.00

ExAC AF: 0.00000826 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.61
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	.;.;T;.;.;T;.
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.45
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Pathogenic	0.97	D;D;D;D;D;D;D
M_CAP	Benign	0.029	D
MetaRNN	Uncertain	0.74	D;D;D;D;D;D;D
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.8	.;.;L;L;.;.;.
PrimateAI	Uncertain	0.69	T
PROVEAN	Uncertain	-4.1	.;D;D;.;D;.;.
REVEL	Benign	0.27
Sift	Uncertain	0.012	.;D;D;.;D;.;.
Sift4G	Benign	0.080	T;T;T;T;T;T;T
Polyphen		0.99	D;D;D;P;D;.;.
Vest4		0.78
MutPred		0.38		.;.;Gain of sheet (P = 0.0011);Gain of sheet (P = 0.0011);.;.;.;
MVP		0.83
MPC		1.3
ClinPred		0.99	D
GERP RS		4.6
Varity_R		0.60
gMVP		0.71

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs769939544; hg19: chr17-59115393;