21-32299052-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The ENST00000303645.10(MRAP):​c.81C>T​(p.Asp27Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,898 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

MRAP
ENST00000303645.10 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.166
Variant links:
Genes affected
MRAP (HGNC:1304): (melanocortin 2 receptor accessory protein) This gene encodes a melanocortin receptor-interacting protein. The encoded protein regulates trafficking and function of the melanocortin 2 receptor in the adrenal gland. The encoded protein can also modulate signaling of other melanocortin receptors. Mutations in this gene have been associated with familial glucocorticoid deficiency type 2. Alternatively spliced transcript variants have been described. [provided by RefSeq, Dec 2009]

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 (BayesDel_noAF=-0.4).
BP6
Variant 21-32299052-C-T is Benign according to our data. Variant chr21-32299052-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3347353.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-0.166 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MRAPNM_001379228.1 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 1/3 ENST00000303645.10 NP_001366157.1
MRAPNM_178817.4 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 3/5 NP_848932.1 Q8TCY5-4
MRAPNM_206898.2 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 3/5 NP_996781.1 Q8TCY5-2
MRAPNM_001285394.2 linkuse as main transcriptc.-72+5920C>T intron_variant NP_001272323.1 Q8TCY5-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MRAPENST00000303645.10 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 1/31 NM_001379228.1 ENSP00000306697.5 Q8TCY5-4
MRAPENST00000399784.6 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 3/51 ENSP00000382684.2 Q8TCY5-4
MRAPENST00000339944.4 linkuse as main transcriptc.81C>T p.Asp27Asp synonymous_variant 1/31 ENSP00000343661.4 Q8TCY5-2
MRAPENST00000497833.1 linkuse as main transcriptn.177+5920C>T intron_variant 1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251352
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461698
Hom.:
0
Cov.:
31
AF XY:
0.00000963
AC XY:
7
AN XY:
727148
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.00
Gnomad4 OTH
AF:
0.000478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

MRAP-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 10, 2024This 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
BayesDel_noAF
Benign
-0.40
CADD
Benign
4.8
DANN
Benign
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1249311661; hg19: chr21-33671363; API