rs1554708715

Variant names:

• chr9-99227899-G-GAA
• rs1554708715
• NM_006808.3:c.106_107dupAA

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006808.3(SEC61B):​c.106_107dupAA​(p.Asn36LysfsTer42) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SEC61B NM_006808.3 frameshift
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 8.91
• Publications: 0 publications found

Genes affected

SEC61B (HGNC:16993): (SEC61 translocon subunit beta) The Sec61 complex is the central component of the protein translocation apparatus of the endoplasmic reticulum (ER) membrane. Oligomers of the Sec61 complex form a transmembrane channel where proteins are translocated across and integrated into the ER membrane. This complex consists of three membrane proteins- alpha, beta, and gamma. This gene encodes the beta-subunit protein. The Sec61 subunits are also observed in the post-ER compartment, suggesting that these proteins can escape the ER and recycle back. There is evidence for multiple polyadenylated sites for this transcript. [provided by RefSeq, Jul 2008]

SEC61B Gene-Disease associations (from GenCC):

• polycystic liver disease 1

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
• SEC61B-related polycystic liver disease

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SEC61B	NM_006808.3	c.106_107dupAA	p.Asn36LysfsTer42	frameshift_variant	Exon 3 of 4	ENST00000223641.5	NP_006799.1
SEC61B	XM_047422662.1	c.59_60dupAA	p.Cys21AsnfsTer62	frameshift_variant	Exon 2 of 3		XP_047278618.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SEC61B	ENST00000223641.5	c.106_107dupAA	p.Asn36LysfsTer42	frameshift_variant	Exon 3 of 4	1	NM_006808.3	ENSP00000223641.4
SEC61B	ENST00000498603.5	c.-57_-56dupAA		5_prime_UTR_variant	Exon 3 of 4	3		ENSP00000474122.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

not provided Uncertain:1

Feb 21, 2018

OMIM

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		8.9
Mutation Taster		=16/184	disease causing

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1554708715; hg19: chr9-101990181;