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The T cell receptor or TCR is a molecule found on the surface of T lymphocytes (or T cells) that is, in general, responsible for recognizing antigens bound to major histocompatibility complex (MHC) molecules.

The TCR is composed of two different protein chains (that is, it is a heterodimer). In 95% of T cells, this consists of an alpha (α) chain (TCRA gene) and beta (β) chain (TCRB gene), whereas in 5% of T cells this consists of gamma (γ) chain (TCRG gene) and delta (δ) chain (TCRD gene).

When the TCR engages with antigen and MHC, this activates the T lymphocyte through a series of biochemical events mediated by associated enzymes, co-receptors, specialized accessory molecules and activated or released transcription factors. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See for details. Source: Wikipedia, wikipedia

Associated with human lymphoid leukemias Source: Regenstrief LOINC

Basic Part Properties

Part Display Name
TCRG gene rearrangements
Part Type
Component (Describes the core component or analyte measured)
Created On
Construct for LOINC Short Name
TCRG gene Rear

LOINC Terminology Service (API) using HL7® FHIR® Get Info

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Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) TCRG 基因重排
Synonyms: TCRG 基因重排(重组);T 细胞重排基因 Gamma;T 细胞重排基因γ;克隆性;淋巴瘤;白血病;集落性
et-EE Estonian (Estonia) TCRG geeni muudatused
es-ES Spanish (Spain) Reordenamientos del gen TCRG
it-IT Italian (Italy) TCRG, riarrangiamenti gene
Synonyms: Riarrangiamenti di gene del TCRG
tr-TR Turkish (Turkey) TCRG geni yeniden düzenlenmeler
ru-RU Russian (Russian Federation) TCRG ген перестройки
nl-NL Dutch (Netherlands) TCRG-genherschikking
Synonyms: TCRG-gentranslocaties