Biomarkers

From HemOnc.org - A Hematology Oncology Wiki
Jump to: navigation, search

The purpose of this page is to create a reference controlled vocabulary for biomarker-specified concepts. It is not meant for any other purpose at this time.

Genes

ALK

HGNC:427

BRAF

HGNC:1097

CD20

CD25

HGNC:6008

CD30

HGNC:11923

CD33

EGFR

HGNC:3236

ER

FGFR2

HGNC:3689

FGFR3

HGNC:3690

FLT3

HER2

HGNC:3430

IDH1

IDH2

KIT

KRAS

PD-L1

HGNC:17635

PDGFRA

HGNC:8803

PIK3CA

ROS1

Point mutations

D816V

D842V

L858R

T315I

T790M

V600E

V600K

Point mutation categories

V600

Gene regions

Exon 18

Exon 19

Gene categories

BRCA

Genomic instability

dMMR

HRD

HRD: Homologous Recombination Deficiency

MSI-H

HR

HR: Hormone-receptor

NTRK

PDGFR

Somatostatin receptor

Gene rearrangements

BCR-ABL1

FIP1L1-PDGFRα

PML-RARα

Chromosomal regions

1p19q

5q

17p

Chromosomal rearrangements

15;17

Alterations

SNV

XREF SO:0001483

SNVs are single nucleotide positions in genomic DNA at which different sequence alternatives exist.

Substitution

XREF SO:1000002

A sequence alteration where the length of the change in the variant is the same as that of the reference.

Frameshift

Structural variant

XREF SO:0001537

A sequence variant that changes one or more sequence features.

Copy number variation

XREF SO:0001019 A variation that increases or decreases the copy number of a given region.

Amplification

XREF SO:0001880 A sequence variant, caused by an alteration of the genomic sequence, where the structural change, an amplification of sequence, is greater than the extent of the underlying genomic features.

Deletion

XREF SO:0000159 The point at which one or more contiguous nucleotides were excised.

Insertion

Expression

XREF GO:0010467

The process in which a gene's sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

Overexpression

XREF GO:0010628

Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

Underexpression

XREF GO:0010629

Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

Normal expression

This is expression level as expected for a given gene in a given cellular context

Unknown

Rearrangement

Synonyms: fusion, translocation

XREF SO:0001872

A region of a chromosome, where the chromosome has undergone a large structural rearrangement that altered the genome organization. There is no longer synteny to the reference genome.

fusion

XREF SO:0000806

translocation

XREF SO:0000199

A region of nucleotide sequence that has translocated to a new position. The observed adjacency of two previously separated regions.

Methylation

XREF GO:0006306

The covalent transfer of a methyl group to either N-6 of adenine or C-5 or N-4 of cytosine.

Hypermethylation

XREF GO:0044026 An increase in the epigenetic methylation of cytosine and adenosine residues in DNA.

Hypomethylation

XREF GO:0044028 An decrease in the epigenetic methylation of cytosine and adenosine residues in DNA.

Regulated

XREF SO:0000471

The gene product is involved in its own transcriptional regulation.

Positive

XREF SO:0000475

The gene product is involved in its own transcriptional regulation, where it increases transcription.

Negative

XREF SO:0000473

The gene product is involved in its own transcriptional regulation where it decreases transcription.

Functional mutations

Gain-of-function

Synonyms: GOF

XREF SO:0002053

A sequence variant whereby new or enhanced function is conferred on the gene product.

Activating

Loss-of-function

Synonyms: LOF

XREF SO:0002054 A sequence variant whereby the gene product has diminished or abolished function.

Inactivating

Germline

XREF SO:0001778

A germline mutation, or germinal mutation, is any detectable variation within germ cells. Mutations in these cells are the only mutations that can be passed on to offspring, when either a mutated sperm or oocyte come together to form a zygote.

Somatic

Synonyms: tumor, acquired

XREF SO:0001777

An alteration in DNA that occurs after conception and is not present within the germline. Somatic variants can occur in any of the cells of the body except the germ cells (sperm and egg) and therefore are not passed on to children.

Wild-type

XREF SO:0000817

An attribute describing sequence with the genotype found in nature and/or standard laboratory stock.