chr6-30948867-C-T

Variant names:

• chr6-30948867-C-T
• rs371675645
• NM_080870.4:c.403C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_080870.4(MUCL3):​c.403C>T​(p.Arg135Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000148 in 1,551,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R135Q) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: MUCL3 NM_080870.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.146
• Publications: 0 publications found

Genes affected

MUCL3 (HGNC:21666): (mucin like 3) Predicted to be located in cytoplasm and plasma membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

HCG21 (HGNC:31335): (HLA complex group 21)

SFTA2 (HGNC:18386): (surfactant associated 2) Predicted to be located in Golgi apparatus; extracellular region; and transport vesicle. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.00851959).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_080870.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUCL3	NM_080870.4	MANE Select	c.403C>T	p.Arg135Trp	missense	Exon 2 of 3	NP_543146.2	E9PEI6
	HCG21	NR_138040.1		n.257-2289G>A		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUCL3	ENST00000462446.6	TSL:5 MANE Select	c.403C>T	p.Arg135Trp	missense	Exon 2 of 3	ENSP00000417182.1	E9PEI6
	HCG21	ENST00000419481.1	TSL:3	n.225-2508G>A		intron	N/A
	SFTA2	ENST00000634371.2	TSL:5	n.513+3495G>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152144 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000652 AC: 1 AN: 153418 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000407

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.0000150 AC: 21 AN: 1399262 Hom.: 0 Cov.: 30 AF XY: 0.0000203 AC XY: 14 AN XY: 690156

African (AFR) AF: 0.00 AC: 0 AN: 31572

American (AMR) AF: 0.00 AC: 0 AN: 35662

Ashkenazi Jewish (ASJ) AF: 0.0000397 AC: 1 AN: 25182

East Asian (EAS) AF: 0.00 AC: 0 AN: 35738

South Asian (SAS) AF: 0.00 AC: 0 AN: 79224

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49256

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5698

European-Non Finnish (NFE) AF: 0.0000176 AC: 19 AN: 1078940

Other (OTH) AF: 0.0000172 AC: 1 AN: 57990

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152262 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74454

African (AFR) AF: 0.00 AC: 0 AN: 41542

American (AMR) AF: 0.0000653 AC: 1 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68008

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000151

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000314 AC: 1

ExAC AF: 0.0000432 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.40	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	15
DANN	Benign	0.82
DEOGEN2	Benign	0.0084	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.050	N
LIST_S2	Benign	0.65	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.0085	T
MetaSVM	Benign	-1.0	T
PhyloP100		-0.15
PrimateAI	Benign	0.19	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.016
Sift4G	Benign	0.065	T
Polyphen		0.25	B
Vest4		0.15
MVP		0.048
MPC		0.58
ClinPred		0.039	T
GERP RS		-0.65
Varity_R		0.077
gMVP		0.088
Mutation Taster		=94/6	polymorphism

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

Other links and lift over

dbSNP: rs371675645; hg19: chr6-30916644;