NM_000384.3(APOB):c.6719A>C (p.Lys2240Thr) AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Nov 23, 2020
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001869110.8

Allele description [Variation Report for NM_000384.3(APOB):c.6719A>C (p.Lys2240Thr)]

NM_000384.3(APOB):c.6719A>C (p.Lys2240Thr)

Gene:

APOB:apolipoprotein B [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2p24.1

Genomic location:

Preferred name:

NM_000384.3(APOB):c.6719A>C (p.Lys2240Thr)

HGVS:

NC_000002.12:g.21010149T>G
NG_011793.1:g.38925A>C
NM_000384.3:c.6719A>CMANE SELECT
NP_000375.3:p.Lys2240Thr
NC_000002.11:g.21233021T>G

Protein change:

K2240T

Links:

dbSNP: rs1558564054

NCBI 1000 Genomes Browser:

rs1558564054

Molecular consequence:

NM_000384.3:c.6719A>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Hypercholesterolemia, autosomal dominant, type B (FHCL2)
Synonyms:: APOLIPOPROTEIN B-100, FAMILIAL DEFECTIVE; APOLIPOPROTEIN B-100, FAMILIAL LIGAND-DEFECTIVE; HYPERCHOLESTEROLEMIA, FAMILIAL, DUE TO LIGAND-DEFECTIVE APOLIPOPROTEIN B; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0007751; MedGen: C1704417; OMIM: 144010

Name:: Familial hypobetalipoproteinemia 1
Synonyms:: Hypobetalipoproteinemia, normotriglyceridemic; Acanthocytosis with hypobetalipoproteinemia
Identifiers:: MONDO: MONDO:0014252; MedGen: C4551990; OMIM: 615558

Recent activity

Clear Turn Off Turn On

chitin binding protein [Bacillus licheniformis]
chitin binding protein [Bacillus licheniformis]
gi|259558727|gb|ACW83017.1|

Protein
putative chitin binding protein [Bacillus cereus AH820]
putative chitin binding protein [Bacillus cereus AH820]
gi|218539222|gnl|tigr|BCAH820_2833| K91620.1|

Protein
citrate synthase, putative [Trypanosoma cruzi]
citrate synthase, putative [Trypanosoma cruzi]
gi|71660323|ref|XP_821879.1|

Protein

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Help

Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002287820	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Nov 23, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002287820

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Nov 23, 2020)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV002287820.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant has not been reported in the literature in individuals with APOB-related conditions. ClinVar contains an entry for this variant (Variation ID: 630628). This variant is not present in population databases (ExAC no frequency). This sequence change replaces lysine with threonine at codon 2240 of the APOB protein (p.Lys2240Thr). The lysine residue is weakly conserved and there is a moderate physicochemical difference between lysine and threonine.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Nov 3, 2024

ClinVar

Relating variation to medicine