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GeneBe

17-55414201-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_012329.3(MMD):c.58C>T(p.Arg20Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,613,758 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

MMD
NM_012329.3 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.16
Variant links:
Genes affected
MMD (HGNC:7153): (monocyte to macrophage differentiation associated) This protein is expressed by in vitro differentiated macrophages but not freshly isolated monocytes. Although sequence analysis identifies seven potential transmembrane domains, this protein has little homology to G-protein receptors and it has not been positively identified as a receptor. A suggested alternative function is that of an ion channel protein in maturing macrophages. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MMDNM_012329.3 linkuse as main transcriptc.58C>T p.Arg20Cys missense_variant 2/7 ENST00000262065.8
MMDXM_047435708.1 linkuse as main transcriptc.58C>T p.Arg20Cys missense_variant 2/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MMDENST00000262065.8 linkuse as main transcriptc.58C>T p.Arg20Cys missense_variant 2/71 NM_012329.3 P1
MMDENST00000649377.1 linkuse as main transcriptc.58C>T p.Arg20Cys missense_variant 2/8
MMDENST00000571578.1 linkuse as main transcriptc.58C>T p.Arg20Cys missense_variant 2/53

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251422
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135870
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461602
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
727102
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:
0.0000464
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Bravo
AF:
0.00000756

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 submitterclinical testingAmbry GeneticsJan 23, 2023The c.58C>T (p.R20C) alteration is located in exon 2 (coding exon 2) of the MMD gene. This alteration results from a C to T substitution at nucleotide position 58, causing the arginine (R) at amino acid position 20 to be replaced by a cysteine (C). 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
Pathogenic
0.71
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.090
Cadd
Pathogenic
33
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.52
D;.;.
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Benign
0.016
T
MetaRNN
Uncertain
0.61
D;D;D
MetaSVM
Uncertain
-0.28
T
MutationAssessor
Pathogenic
2.9
M;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.86
D
PROVEAN
Uncertain
-3.2
D;.;.
REVEL
Uncertain
0.31
Sift
Benign
0.068
T;.;.
Sift4G
Uncertain
0.020
D;.;D
Polyphen
1.0
D;.;.
Vest4
0.71
MutPred
0.44
Loss of loop (P = 0.0073);Loss of loop (P = 0.0073);Loss of loop (P = 0.0073);
MVP
0.62
MPC
0.90
ClinPred
0.91
D
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.20
gMVP
0.81

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs746547063; hg19: chr17-53491562; API