chr10-28681348-T-C

Variant names:

• chr10-28681348-T-C
• NM_012342.3:c.167T>C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_012342.3(BAMBI):​c.167T>C​(p.Leu56Pro) 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L56I) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BAMBI NM_012342.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.97

Genes affected

BAMBI (HGNC:30251): (BMP and activin membrane bound inhibitor) This gene encodes a transmembrane glycoprotein related to the type I receptors of the transforming growth factor-beta (TGF-beta) family, whose members play important roles in signal transduction in many developmental and pathological processes. The encoded protein however is a pseudoreceptor, lacking an intracellular serine/threonine kinase domain required for signaling. Similar proteins in frog, mouse and zebrafish function as negative regulators of TGF-beta, which has led to the suggestion that the encoded protein may function to limit the signaling range of the TGF-beta family during early embryogenesis. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.981

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BAMBI	NM_012342.3	c.167T>C	p.Leu56Pro	missense_variant	Exon 2 of 3	ENST00000375533.6	NP_036474.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BAMBI	ENST00000375533.6	c.167T>C	p.Leu56Pro	missense_variant	Exon 2 of 3	1	NM_012342.3	ENSP00000364683.3
BAMBI	ENST00000497699.1	n.555T>C		non_coding_transcript_exon_variant	Exon 2 of 2	2

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

not specified Uncertain:1

Jan 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.167T>C (p.L56P) alteration is located in exon 2 (coding exon 2) of the BAMBI gene. This alteration results from a T to C substitution at nucleotide position 167, causing the leucine (L) at amino acid position 56 to be replaced by a proline (P). 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	Uncertain	0.54
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.40
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.87	D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.70	D
MutationAssessor	Uncertain	2.0	M
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-2.5	D
REVEL	Pathogenic	0.86
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0080	D
Polyphen		1.0	D
Vest4		0.98
MutPred		0.89		Gain of disorder (P = 0.0141);
MVP		0.95
MPC		0.63
ClinPred		0.98	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.77
gMVP		0.94

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: chr10-28970277;