19-44812188-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005581.5(BCAM):ā€‹c.230G>Cā€‹(p.Arg77Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000689 in 1,450,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. R77H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.9e-7 ( 0 hom. )

Consequence

BCAM
NM_005581.5 missense

Scores

1
2
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.84
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14366472).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BCAMNM_005581.5 linkuse as main transcriptc.230G>C p.Arg77Pro missense_variant 3/15 ENST00000270233.12 NP_005572.2 P50895
BCAMNM_001013257.2 linkuse as main transcriptc.230G>C p.Arg77Pro missense_variant 3/14 NP_001013275.1 P50895A0A087WXM8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BCAMENST00000270233.12 linkuse as main transcriptc.230G>C p.Arg77Pro missense_variant 3/151 NM_005581.5 ENSP00000270233.5 P50895
BCAMENST00000611077.5 linkuse as main transcriptc.230G>C p.Arg77Pro missense_variant 3/145 ENSP00000481153.1 A0A087WXM8
BCAMENST00000591520.6 linkuse as main transcriptc.205-38G>C intron_variant 3 ENSP00000467100.2 K7ENU8
BCAMENST00000588603.1 linkuse as main transcriptn.225G>C non_coding_transcript_exon_variant 3/42

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000437
AC:
1
AN:
229008
Hom.:
0
AF XY:
0.00000792
AC XY:
1
AN XY:
126314
show subpopulations
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 SAS exome
AF:
0.0000338
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.89e-7
AC:
1
AN:
1450466
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
722184
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
3.2
DANN
Uncertain
0.98
DEOGEN2
Benign
0.11
T;T
Eigen
Benign
-0.92
Eigen_PC
Benign
-0.89
FATHMM_MKL
Benign
0.041
N
LIST_S2
Benign
0.63
T;T
M_CAP
Benign
0.0084
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
M;.
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-2.2
N;.
REVEL
Benign
0.10
Sift
Uncertain
0.016
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.018
B;.
Vest4
0.40
MutPred
0.56
Gain of glycosylation at R77 (P = 0.0146);Gain of glycosylation at R77 (P = 0.0146);
MVP
0.055
MPC
0.32
ClinPred
0.071
T
GERP RS
-0.14
Varity_R
0.93
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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.

Other links and lift over

dbSNP: rs28399653; hg19: chr19-45315445; API