Genetic Variant BCAM:p.Pro39Leu (chr19-44811258-C-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_005581.5(BCAM):c.116C>T(p.Pro39Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,612,844 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000095 ( 1 hom. )

Consequence

BCAM
NM_005581.5 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 1.36

Variant links:

Genes affected

BCAM (HGNC:6722): (basal cell adhesion molecule (Lutheran blood group)) This gene encodes Lutheran blood group glycoprotein, a member of the immunoglobulin superfamily and a receptor for the extracellular matrix protein, laminin. The protein contains five extracellular immunoglobulin domains, a single transmembrane domain, and a short C-terminal cytoplasmic tail. This protein may play a role in epithelial cell cancer and in vaso-occlusion of red blood cells in sickle cell disease. Polymorphisms in this gene define some of the antigens in the Lutheran system and also the Auberger system. Inactivating variants of this gene result in the recessive Lutheran null phenotype, Lu(a-b-), of the Lutheran blood group. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

BCAM links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.005785823).

BP6

Variant 19-44811258-C-T is Benign according to our data. Variant chr19-44811258-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3040212.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCAM	NM_005581.5 link	c.116C>T	p.Pro39Leu	missense_variant	Exon 2 of 15	ENST00000270233.12	NP_005572.2	P50895
BCAM	NM_001013257.2 link	c.116C>T	p.Pro39Leu	missense_variant	Exon 2 of 14		NP_001013275.1	P50895A0A087WXM8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCAM	ENST00000270233.12 link	c.116C>T	p.Pro39Leu	missense_variant	Exon 2 of 15	1	NM_005581.5	ENSP00000270233.5		P50895

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152090

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00636

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000386

AC:

AN:

251350

Hom.:

AF XY:

0.000390

AC XY:

AN XY:

135842

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00511

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000952

AC:

139

AN:

1460636

Hom.:

Cov.:

AF XY:

0.0000977

AC XY:

AN XY:

726652

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00310

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000995

GnomAD4 genome

AF:

0.000230

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00638

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000262

Hom.:

Bravo

AF:

0.000321

ExAC

AF:

0.000371

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

BCAM-related disorder

Benign:1

Sep 10, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

T;T;T

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.82

T;T;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.0058

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;.;.

PrimateAI

Benign

0.45

PROVEAN

Uncertain

-3.6

D;.;.

REVEL

Benign

0.056

Sift

Uncertain

0.017

D;.;.

Sift4G

Uncertain

0.0090

D;D;D

Polyphen

0.99

D;.;.

Vest4

0.30

MVP

0.32

MPC

0.41

ClinPred

0.12

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.62

gMVP

0.43

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over