2-237877332-C-T

Position:

chr2-237877332-C-T

Variant summary

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

The NM_005855.4(RAMP1):c.161C>T(p.Thr54Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00011 in 1,613,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

RAMP1
NM_005855.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.523

Variant links:

Genes affected

RAMP1 (HGNC:9843): (receptor activity modifying protein 1) The protein encoded by this gene is a member of the RAMP family of single-transmembrane-domain proteins, called receptor (calcitonin) activity modifying proteins (RAMPs). RAMPs are type I transmembrane proteins with an extracellular N terminus and a cytoplasmic C terminus. RAMPs are required to transport calcitonin-receptor-like receptor (CRLR) to the plasma membrane. CRLR, a receptor with seven transmembrane domains, can function as either a calcitonin-gene-related peptide (CGRP) receptor or an adrenomedullin receptor, depending on which members of the RAMP family are expressed. In the presence of this (RAMP1) protein, CRLR functions as a CGRP receptor. The RAMP1 protein is involved in the terminal glycosylation, maturation, and presentation of the CGRP receptor to the cell surface. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]

RAMP1 links:

Genome browser will be placed here

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=0.09098545).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RAMP1	NM_005855.4 linkuse as main transcript	c.161C>T	p.Thr54Met	missense_variant	2/3	ENST00000254661.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
RAMP1	ENST00000254661.5 linkuse as main transcript	c.161C>T	p.Thr54Met	missense_variant	2/3	1	NM_005855.4	P1
RAMP1	ENST00000403885.1 linkuse as main transcript	c.95C>T	p.Thr32Met	missense_variant	2/3	3
RAMP1	ENST00000404910.6 linkuse as main transcript	c.95C>T	p.Thr32Met	missense_variant	2/3	2
RAMP1	ENST00000409726.5 linkuse as main transcript	c.95C>T	p.Thr32Met	missense_variant	3/4	3

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000112

AC:

AN:

250826

Hom.:

AF XY:

0.0000959

AC XY:

AN XY:

135550

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000200

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.000278

Gnomad NFE exome

AF:

0.000168

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000112

AC:

163

AN:

1461440

Hom.:

Cov.:

AF XY:

0.000111

AC XY:

AN XY:

727016

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000192

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.000432

Gnomad4 NFE exome

AF:

0.000111

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.000865

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000684

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.000124

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 19, 2023

The c.161C>T (p.T54M) alteration is located in exon 2 (coding exon 2) of the RAMP1 gene. This alteration results from a C to T substitution at nucleotide position 161, causing the threonine (T) at amino acid position 54 to be replaced by a methionine (M). 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

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.57

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.16

T;T;T;T

Eigen

Benign

-0.68

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.40

.;T;.;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.091

T;T;T;T

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.6

.;M;.;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

-2.1

N;N;N;N

REVEL

Benign

0.076

Sift

Benign

0.056

T;T;T;T

Sift4G

Benign

0.066

T;T;T;T

Polyphen

1.0

.;D;.;.

Vest4

0.22

MVP

0.37

MPC

0.021

ClinPred

0.099

GERP RS

-1.2

Varity_R

0.066

gMVP

0.43

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.

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