15-83257755-T-G

Variant names:

• chr15-83257755-T-G
• rs2038093841
• NM_001717.4:c.2672A>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001717.4(BNC1):​c.2672A>C​(p.Asp891Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. D891G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: BNC1 NM_001717.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.15
• Publications: 0 publications found

Genes affected

BNC1 (HGNC:1081): (basonuclin zinc finger protein 1) This gene encodes a zinc finger protein present in the basal cell layer of the epidermis and in hair follicles. It is also found in abundance in the germ cells of testis and ovary. This protein is thought to play a regulatory role in keratinocyte proliferation and it may also be a regulator for rRNA transcription. Disruption of this gene has been implicated in premature ovarian failure as well as testicular premature aging. [provided by RefSeq, Sep 2020]

BNC1 Gene-Disease associations (from GenCC):

• premature ovarian failure 16

  Inheritance: AD, Unknown Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• 46 XX gonadal dysgenesis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000259986 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17579043).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001717.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BNC1	NM_001717.4	MANE Select	c.2672A>C	p.Asp891Ala	missense	Exon 5 of 5	NP_001708.3
	BNC1	NM_001301206.2		c.2651A>C	p.Asp884Ala	missense	Exon 5 of 5	NP_001288135.1	F5GY04

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BNC1	ENST00000345382.7	TSL:1 MANE Select	c.2672A>C	p.Asp891Ala	missense	Exon 5 of 5	ENSP00000307041.2	Q01954
	BNC1	ENST00000569704.2	TSL:5	c.2651A>C	p.Asp884Ala	missense	Exon 5 of 5	ENSP00000456727.1	F5GY04
	ENSG00000259986	ENST00000565495.1	TSL:5	n.264+72687T>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461892 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1112010

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.017	T
BayesDel_noAF	Benign	-0.26
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.25	T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.44
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.6	L
PhyloP100		6.2
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.14
Sift	Benign	0.052	T
Sift4G	Benign	0.094	T
Polyphen		0.80	P
Vest4		0.48
MutPred		0.23		Gain of sheet (P = 0.0043)
MVP		0.093
MPC		0.70
ClinPred		0.94	D
GERP RS		5.9
Varity_R		0.34
gMVP		0.53
Mutation Taster		=68/32	polymorphism

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

Other links and lift over

dbSNP: rs2038093841; hg19: chr15-83926507;