chr3-4983312-A-C

Variant names:

• chr3-4983312-A-C
• rs145180073
• NM_003670.3:c.859A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_003670.3(BHLHE40):​c.859A>C​(p.Thr287Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict 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. T287A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: BHLHE40 NM_003670.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.09
• Publications: 0 publications found

Genes affected

BHLHE40 (HGNC:1046): (basic helix-loop-helix family member e40) This gene encodes a basic helix-loop-helix protein expressed in various tissues. The encoded protein can interact with ARNTL or compete for E-box binding sites in the promoter of PER1 and repress CLOCK/ARNTL's transactivation of PER1. This gene is believed to be involved in the control of circadian rhythm and cell differentiation. [provided by RefSeq, Feb 2014]

ENSG00000305983 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.051505476).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003670.3. 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
	BHLHE40	NM_003670.3	MANE Select	c.859A>C	p.Thr287Pro	missense	Exon 5 of 5	NP_003661.1	O14503

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BHLHE40	ENST00000256495.4	TSL:1 MANE Select	c.859A>C	p.Thr287Pro	missense	Exon 5 of 5	ENSP00000256495.3	O14503
	BHLHE40	ENST00000931070.1		c.859A>C	p.Thr287Pro	missense	Exon 6 of 6	ENSP00000601129.1
	ENSG00000305983	ENST00000814585.1		n.590-472T>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251452 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461890 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

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: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112012

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	0.064
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	8.7
DANN	Benign	0.90
DEOGEN2	Benign	0.080	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.13	N
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.69	N
PhyloP100		1.1
PrimateAI	Benign	0.32	T
PROVEAN	Benign	0.29	N
REVEL	Benign	0.12
Sift	Benign	0.16	T
Sift4G	Benign	0.26	T
Polyphen		0.0	B
Vest4		0.082
MutPred		0.19		Loss of glycosylation at P286 (P = 0.0062)
MVP		0.34
MPC		0.23
ClinPred		0.035	T
GERP RS		-1.5
Varity_R		0.074
gMVP		0.21
Mutation Taster		=92/8	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: rs145180073; hg19: chr3-5024997;