Genetic Variant MYCBPAP:p.Lys180Glu (chr17-50518610-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032133.6(MYCBPAP):c.538A>G(p.Lys180Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000503 in 1,608,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

MYCBPAP
NM_032133.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.146

Variant links:

Genes affected

MYCBPAP (HGNC:19677): (MYCBP associated protein) Involved in spermatogenesis. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MYCBPAP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03635779).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYCBPAP	NM_032133.6 link	c.538A>G	p.Lys180Glu	missense_variant	Exon 5 of 19	ENST00000323776.11	NP_115509.5	Q8TBZ2A0A140VK87B4DZQ1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYCBPAP	ENST00000323776.11 link	c.538A>G	p.Lys180Glu	missense_variant	Exon 5 of 19	1	NM_032133.6	ENSP00000323184.6		Q8TBZ2

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

246264

Hom.:

AF XY:

0.00000750

AC XY:

AN XY:

133334

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000268

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000494

AC:

AN:

1456606

Hom.:

Cov.:

AF XY:

0.0000510

AC XY:

AN XY:

724834

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000612

Gnomad4 OTH exome

AF:

0.0000666

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 16, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.667A>G (p.K223E) alteration is located in exon 5 (coding exon 5) of the MYCBPAP gene. This alteration results from a A to G substitution at nucleotide position 667, causing the lysine (K) at amino acid position 223 to be replaced by a glutamic acid (E). 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

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.0092

.;.;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.043

LIST_S2

Benign

0.65

.;T;.

M_CAP

Benign

0.0080

MetaRNN

Benign

0.036

T;T;T

MetaSVM

Benign

-0.99

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.52

N;N;N

REVEL

Benign

0.016

Sift

Benign

0.49

T;T;T

Sift4G

Benign

0.42

T;T;T

Vest4

0.092

MutPred

0.20

Loss of ubiquitination at K186 (P = 0.0127);.;.;

MVP

0.20

MPC

0.26

ClinPred

0.033

GERP RS

-0.81

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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