rs748934365

Variant names:

• chr3-123614315-A-C
• rs748934365
• NM_053025.4:c.5535T>G

Your query was ambiguous. Multiple possible variants found:

• chr3-123614315-A-C
• chr3-123614315-A-G
• chr3-123614315-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_053025.4(MYLK):​c.5535T>G​(p.Asp1845Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. D1845D) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: MYLK NM_053025.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: -0.570
• Publications: 0 publications found

Genes affected

MYLK (HGNC:7590): (myosin light chain kinase) This gene, a muscle member of the immunoglobulin gene superfamily, encodes myosin light chain kinase which is a calcium/calmodulin dependent enzyme. This kinase phosphorylates myosin regulatory light chains to facilitate myosin interaction with actin filaments to produce contractile activity. This gene encodes both smooth muscle and nonmuscle isoforms. In addition, using a separate promoter in an intron in the 3' region, it encodes telokin, a small protein identical in sequence to the C-terminus of myosin light chain kinase, that is independently expressed in smooth muscle and functions to stabilize unphosphorylated myosin filaments. A pseudogene is located on the p arm of chromosome 3. Four transcript variants that produce four isoforms of the calcium/calmodulin dependent enzyme have been identified as well as two transcripts that produce two isoforms of telokin. Additional variants have been identified but lack full length transcripts. [provided by RefSeq, Jul 2008]

MYLK-AS1 (HGNC:42440): (MYLK antisense RNA 1)

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3523348).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_053025.4. 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
	MYLK	NM_053025.4	MANE Select	c.5535T>G	p.Asp1845Glu	missense	Exon 34 of 34	NP_444253.3
	MYLK	NM_053027.4		c.5382T>G	p.Asp1794Glu	missense	Exon 33 of 33	NP_444255.3
	MYLK	NM_053026.4		c.5328T>G	p.Asp1776Glu	missense	Exon 33 of 33	NP_444254.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYLK	ENST00000360304.8	TSL:5 MANE Select	c.5535T>G	p.Asp1845Glu	missense	Exon 34 of 34	ENSP00000353452.3	Q15746-1
	MYLK	ENST00000418370.6	TSL:1	c.255T>G	p.Asp85Glu	missense	Exon 3 of 3	ENSP00000428967.1	Q15746-8
	MYLK	ENST00000578202.2	TSL:1	c.*40T>G		3_prime_UTR	Exon 3 of 3	ENSP00000463691.2	A0A8J9G5A3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Familial thoracic aortic aneurysm and aortic dissection (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.58
BayesDel_addAF	Benign	-0.063	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	16
DANN	Uncertain	0.99
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.47
FATHMM_MKL	Benign	0.31	N
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.35	T
MetaSVM	Benign	-0.74	T
MutationAssessor	Benign	1.8	L
PhyloP100		-0.57
PrimateAI	Pathogenic	0.80	D
PROVEAN	Benign	-2.2	N
REVEL	Uncertain	0.29
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.020	D
Polyphen		1.0	D
Vest4		0.38
MutPred		0.66		Gain of ubiquitination at K1844 (P = 0.1111)
MVP		0.64
MPC		1.7
ClinPred		0.69	D
GERP RS		-2.8
Varity_R		0.086
gMVP		0.73
Mutation Taster		=65/35	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: rs748934365; hg19: chr3-123333162;