1-171648181-T-C

Variant names:

• chr1-171648181-T-C
• rs9660235
• NM_000261.2:c.604+3827A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000261.2(MYOC):​c.604+3827A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.042 in 90,098 control chromosomes in the GnomAD database, including 175 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.042 (175 hom., cov: 29)
• Consequence: MYOC NM_000261.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.284
• Publications: 1 publications found

Genes affected

MYOC (HGNC:7610): (myocilin) MYOC encodes the protein myocilin, which is believed to have a role in cytoskeletal function. MYOC is expressed in many occular tissues, including the trabecular meshwork, and was revealed to be the trabecular meshwork glucocorticoid-inducible response protein (TIGR). The trabecular meshwork is a specialized eye tissue essential in regulating intraocular pressure, and mutations in MYOC have been identified as the cause of hereditary juvenile-onset open-angle glaucoma. [provided by RefSeq, Jul 2008]

MYOC Gene-Disease associations (from GenCC):

• glaucoma 1, open angle, A

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• juvenile open angle glaucoma

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• open-angle glaucoma

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• congenital glaucoma

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.156 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYOC	NM_000261.2	c.604+3827A>G		intron_variant	Intron 1 of 2	ENST00000037502.11	NP_000252.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYOC	ENST00000037502.11	c.604+3827A>G		intron_variant	Intron 1 of 2	1	NM_000261.2	ENSP00000037502.5
MYOC	ENST00000638471.1	n.130+4301A>G		intron_variant	Intron 1 of 3	5		ENSP00000491206.1

Frequencies

GnomAD3 genomes AF: 0.0419 AC: 3768 AN: 90008 Hom.: 175 Cov.: 29

Gnomad AFR AF: 0.161

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0188

Gnomad ASJ AF: 0.00328

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00144

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0176

Gnomad NFE AF: 0.000754

Gnomad OTH AF: 0.0269

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0420 AC: 3781 AN: 90098 Hom.: 175 Cov.: 29 AF XY: 0.0420 AC XY: 1792 AN XY: 42688

African (AFR) AF: 0.161 AC: 3540 AN: 22018

American (AMR) AF: 0.0187 AC: 164 AN: 8752

Ashkenazi Jewish (ASJ) AF: 0.00328 AC: 7 AN: 2132

East Asian (EAS) AF: 0.00 AC: 0 AN: 2430

South Asian (SAS) AF: 0.000965 AC: 2 AN: 2072

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 5666

Middle Eastern (MID) AF: 0.0192 AC: 3 AN: 156

European-Non Finnish (NFE) AF: 0.000754 AC: 34 AN: 45106

Other (OTH) AF: 0.0264 AC: 31 AN: 1174

Alfa AF: 0.00618 Hom.: 2

Bravo AF: 0.0290

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	1.7
DANN	Benign	0.48
PhyloP100		0.28
Mutation Taster		=100/0	polymorphism (auto)

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: rs9660235; hg19: chr1-171617321;