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Correspondence between labels for IG and TR domains in IMGT/3Dstructure-DB and IMGT/LIGM-DB

Click here for the definition of the IMGT/3Dstructure-DB labels.
Click here for the definition of the IMGT/LIGM-DB labels.

• Correspondence between labels for IG domains
• Correspondence between labels for TR domains

Correspondence between labels for IG domains

Core regions	Regions in membrane IG-Heavy	Domains
V: V-REGION D: D-REGION J: J-REGION C: C-REGION	CO: CONNECTING-REGION TM: TRANSMEMBRANE-REGION CY: CYTOPLASMIC-REGION	IG-Light-chain VL IG-Light chain CL IG-Heavy chain VH IG-Heavy chain CH1 IG-Heavy chain CH2 IG-Heavy chain CH3 IG-Heavy chain CH4 (for Heavy-Epsilon and for IG-Heavy-Mu)

IMGT/3Dstructure-DB labels			IMGT/LIGM-DB labels
V-DOMAIN	VL	V-KAPPA	V-J-REGION
		V-LAMBDA	V-J-REGION
	VH		V-D-J-REGION
C-DOMAIN	CL	C-KAPPA	C-REGION
		C-LAMBDA
	CH	CH1	CH1	C-REGION (1)
		CH2	CH2
		CH3	CH3
		CH4	CH4

Correspondence between labels for TR domains

Core regions	Other regions in TR chains	Domains
V: V-REGION D: D-REGION J: J-REGION C: C-REGION	CO: CONNECTING-REGION TM: TRANSMEMBRANE-REGION CY: CYTOPLASMIC-REGION	TR-Alpha chain V-ALPHA TR-Alpha chain C-ALPHA TR-Beta chain V-BETA TR-Beta chain C-BETA	TR-Gamma chain V-GAMMA TR-Gamma chain C-GAMMA TR-Delta chain V-DELTA TR-Delta chain C-DELTA

IMGT/3Dstructure-DB Domain labels		IMGT/LIGM-DB Sequence labels
V-DOMAIN	V-ALPHA	V-J-REGION
	V-BETA	V-D-J-REGION
	V-GAMMA	V-J-REGION
	V-DELTA	V-D-J-REGION
C-DOMAIN	C-ALPHA	C-REGION (2)
	C-BETA	C-REGION (2)
	C-GAMMA	C-REGION (2)
	C-DELTA	C-REGION (2)

IMGT notes:

(1)	The IG heavy chain C-REGION also includes the HINGE-REGION (for the IG-Heavy-Alpha, IG-Heavy-Delta and IG-Heavy-Gamma chains) and, for the membrane form, the CONNECTING-REGION (CO), the TRANSMEMBRANE-REGION (TM) and the CYTOPLASMIC-REGION (CO), and, for the soluble form, the CHS.
(2)	The TR chain C-REGION also includes the CONNECTING-REGION (CO), the TRANSMEMBRANE-REGION (TM) and the CYTOPLASMIC-REGION (CY).

More information:

• IMGT/PROTEIN-DB and IMGT/3Dstructure-DB: Standardized keywords and labels for IG, TR and MHC.
• Protein displays: Human IGH C-REGIONs.
• Protein displays: Human TRA, TRB, TRG and TRD C-REGIONs.
• Correspondence between chain types and C genes : IG and TR (all vertebrate species).

See also:

• IMGT/3Dstructure-DB
• IMGT/LIGM-DB
• Domain
• Labels

Created: 14/04/2003
Last updated: Friday, 22-Sep-2023 18:14:40 CEST
Authors: Céline Protat and Marie-Paule Lefranc
Editor: Chantal Ginestoux

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