Genetic Variant MRAP:p.Gln91Lys (chr21-32311748-C-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001379228.1(MRAP):c.271C>A(p.Gln91Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000156 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

MRAP
NM_001379228.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0570

Publications

1 publications found

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]

MRAP links:

URB1 (HGNC:17344): (URB1 ribosome biogenesis homolog) Enables RNA binding activity. Predicted to be involved in maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) and maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA). Located in fibrillar center. [provided by Alliance of Genome Resources, Apr 2022]

URB1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.047579348).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001379228.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MRAP	NM_001379228.1	MANE Select	c.271C>A	p.Gln91Lys	missense	Exon 3 of 3	NP_001366157.1	Q8TCY5-4
URB1	NM_014825.3	MANE Select	c.*3170G>T		3_prime_UTR	Exon 39 of 39	NP_055640.2
MRAP	NM_178817.4		c.271C>A	p.Gln91Lys	missense	Exon 5 of 5	NP_848932.1	Q8TCY5-4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MRAP	ENST00000303645.10	TSL:1 MANE Select	c.271C>A	p.Gln91Lys	missense	Exon 3 of 3	ENSP00000306697.5	Q8TCY5-4
MRAP	ENST00000399784.6	TSL:1	c.271C>A	p.Gln91Lys	missense	Exon 5 of 5	ENSP00000382684.2	Q8TCY5-4
URB1	ENST00000382751.4	TSL:1 MANE Select	c.*3170G>T		3_prime_UTR	Exon 39 of 39	ENSP00000372199.3	O60287

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152218

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:

0.000323

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000917

AC:

AN:

250890

AF XY:

0.0000885

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000194

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000156

AC:

228

AN:

1461786

Hom.:

Cov.:

AF XY:

0.000151

AC XY:

110

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.0000375

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000195

AC:

217

AN:

1111976

Other (OTH)

AF:

0.000132

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000158

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74358

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000323

AC:

AN:

68036

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000165

Hom.:

Bravo

AF:

0.000128

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Glucocorticoid deficiency 2 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.36

CADD

Benign

2.3

(source)

DANN

Benign

0.55

DEOGEN2

Benign

0.091

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.29

M_CAP

Benign

0.040

MetaRNN

Benign

0.048

MetaSVM

Benign

-0.78

MutationAssessor

Benign

0.0

PhyloP100

0.057

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.25

REVEL

Benign

0.16

Sift

Benign

0.24

Sift4G

Benign

0.51

Polyphen

0.015

Vest4

0.14

MVP

0.58

MPC

0.087

ClinPred

0.030

GERP RS

2.5

Varity_R

0.089

gMVP

0.064

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over