7-73539944-T-A

Variant names:

• chr7-73539944-T-A
• rs781826895
• NM_001707.4:c.374A>T

Variant summary

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

The NM_001707.4(BCL7B):​c.374A>T​(p.His125Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,948 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H125P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: BCL7B NM_001707.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.84
• Publications: 0 publications found

Genes affected

BCL7B (HGNC:1005): (BAF chromatin remodeling complex subunit BCL7B) This gene encodes a member of the BCL7 family including BCL7A, BCL7B and BCL7C proteins. This member is BCL7B, which contains a region that is highly similar to the N-terminal segment of BCL7A or BCL7C proteins. The BCL7A protein is encoded by the gene known to be directly involved in a three-way gene translocation in a Burkitt lymphoma cell line. This gene is located at a chromosomal region commonly deleted in Williams syndrome. This gene is highly conserved from C. elegans to human. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2010]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001707.4. 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
	BCL7B	NM_001707.4	MANE Select	c.374A>T	p.His125Leu	missense	Exon 4 of 6	NP_001698.2
	BCL7B	NM_001301061.2		c.407A>T	p.His136Leu	missense	Exon 5 of 7	NP_001287990.1	F2Z3H6
	BCL7B	NM_001197244.2		c.266-1931A>T		intron	N/A	NP_001184173.1	Q9BQE9-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BCL7B	ENST00000223368.7	TSL:1 MANE Select	c.374A>T	p.His125Leu	missense	Exon 4 of 6	ENSP00000223368.2	Q9BQE9-1
	BCL7B	ENST00000945444.1		c.485A>T	p.His162Leu	missense	Exon 5 of 7	ENSP00000615503.1
	BCL7B	ENST00000871802.1		c.452A>T	p.His151Leu	missense	Exon 5 of 7	ENSP00000541861.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152104 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

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461844 Hom.: 0 Cov.: 30 AF XY: 0.00000825 AC XY: 6 AN XY: 727230

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: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53386

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000899 AC: 10 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152104 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74286

African (AFR) AF: 0.00 AC: 0 AN: 41430

American (AMR) AF: 0.00 AC: 0 AN: 15242

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10606

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Uncertain	0.055	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	25
DANN	Uncertain	0.98
DEOGEN2	Benign	0.23	T
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.069	D
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		5.8
PrimateAI	Pathogenic	0.82	D
PROVEAN	Pathogenic	-4.4	D
REVEL	Benign	0.23
Sift	Benign	0.049	D
Sift4G	Benign	0.43	T
Polyphen		0.99	D
Vest4		0.62
MutPred		0.22		Loss of solvent accessibility (P = 0.0635)
MVP		0.26
MPC		1.1
ClinPred		0.98	D
GERP RS		5.3
Varity_R		0.43
gMVP		0.22
Mutation Taster		=50/50

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: rs781826895; hg19: chr7-72954274;