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V-set domain

V-set domain is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand V-set domain rather than just read about it. In short: V-set domains are Ig-like domains resembling the antibody variable domain. V-set domains are found in diverse protein families, including immunoglobulin light and heavy chains; in several T-cell receptors such as CD2, CD4, CD80, and CD86; in the N-terminal part of Siglec-receptors, in myelin membrane adhesion molecules; in junctional adhesion molecules (JAM); in tyrosine-protein kinase receptors; and in the programm…

V-set domain — main illustration
V-set domain — illustration

Key takeaways

  • V-set domain belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect V-set domain to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of V-set domain from memory before moving on to harder problems.

Reference excerpt

V-set domains are Ig-like domains resembling the antibody variable domain. V-set domains are found in diverse protein families, including immunoglobulin light and heavy chains; in several T-cell receptors such as CD2, CD4, CD80, and CD86; in the N-terminal part of Siglec-receptors, in myelin membrane adhesion molecules; in junctional adhesion molecules (JAM); in tyrosine-protein kinase receptors; and in the programmed cell death protein 1 (PD1).

Subfamilies Immunoglobulin V-set, subgroup InterPro: IPR003596 T-cell surface antigen CD2 InterPro: IPR013285

Human proteins containing this domain ACAM; ACAN; ADAMTSL1; AGC1; AMICA1; BCAM; BCAN; BGP; BGPc; BT3.3; BTN1A1; BTN2A1; BTN2A2; BTN2A3; BTN3A1; BTN3A2; BTN3A3; BTNL2; BTNL3; BTNL8; BTNL9; VSIR; C1orf32; C9orf94; CADM1; CADM2; CADM3; CADM4; CD2; CD226; CD274; CD276; CD300A; CD300C; CD300D; CD300E; CD300LB; CD300LF; CD300LG; CD33; CD3G; CD7; CD79A; CD79B; CD80; CD83; CD86; CD8A; CD8B; CD8B1; CD96; CEACAM1; CEACAM16; CEACAM19; CEACAM21; CEACAM3; CEACAM4; CEACAM5; CEACAM6; CEACAM7; CEACAM8; CHL1; CREA7-4; CRTAM; CSF1R; CTLA4; CXADR; ERMAP; ESAM; F11R; FCAMR; FCRL2; FKSG87; GLUDP5; GPA33; HAPLN1; HAPLN2; HAPLN3; HAPLN4; HAVCR1; HEPACAM; HHLA2; HSPG2; ICOSLG; IGHA1; IGHA2; IGHD; IGHG1; IGHG3; IGHM; IGHV1-69; IGHV4-31; IGHV7-81; IGKC; IGKV1-5; IGKV2-24; IGL@; IGLC1; IGLV2-14; IGLV3-21; IGLV3-25; IGLV4-3; IGLV5-52; IGLV6-57; IGSF11; IGSF2; IGSF3; IGSF6; IGSF8; IGSF9; IL18R1; IREM2; IREM3; JAM2; JAM3; KDR; KIRREL; KIRREL2; KIRREL3; LAG3; LOC253012; LOC402482; MAG; MGC33530; MOG; MPZ; MPZL1; MPZL2; MXRA8; MYBPC3; NCA; NCR2; NCR3; NPHS1; OBSL1; OPCML; P0; PDCD1; PIGR; PILRA; PILRB; PRODH2; PSG1; PSG10; PSG11; PSG11s'; PSG2; PSG3; PSG4; PSG5; PSG6; PSG7; PSG8; PSG9; PTGFRN; PTPN1L; PVR; PVRL1; PVRL2; PVRL3; PVRL4; SCN2B; SCN3B; SCN4B; SEMA3D; SIGLEC1; SIGLEC10; SIGLEC11; SIGLEC12; SIGLEC14; SIGLEC15; SIGLEC6; SIGLEC7; SIGLEC8; SIGLEC9; SIRPA; SIRPB1; SIRPD; SIRPG; SISP1; SLAMF6; SLAMF7; TAPBPL; TCRA; TCRB; TIMD4; TRA@; TRAV20; TRBC1; TRBV19; TRBV3-1; TRBV5-4; TRBV7-2; TRDV2; TREM1; TREM2; TREML1; TREML2; TREML4; TRGV3; TRGV5; TRGV7; TRGV9; VCAM1; VCAN; VPREB1; VPREB3; VSIG1; VSIG2; VSIG4; VSIG9; VSIG10; VSTM1; VSTM2; VTCN1;

References

Illustrations

V-set domain illustration

Worked examples

Example 1 — a first encounter with V-set domain

Start with the simplest possible case. Write down what V-set domain claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to V-set domain before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about V-set domain ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of V-set domain

In research
V-set domain appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses V-set domain in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
V-set domain is common in secondary-school and first-year university syllabi. It links to neighbouring topics Membrane protein stubs, Protein domains, Single-pass transmembrane proteins, so understanding it makes those chapters shorter.
In everyday life
Look for V-set domain outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study V-set domain in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what V-set domain means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain V-set domain out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is V-set domain in simple terms?

V-set domains are Ig-like domains resembling the antibody variable domain. V-set domains are found in diverse protein families, including immunoglobulin light and heavy chains; in several T-cell receptors such as CD2, CD4, CD80, and CD86; in the N-terminal part of Siglec-receptors, in myelin membra…

Why does V-set domain matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study V-set domain?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on V-set domain.

Tags

  • Membrane protein stubs
  • Protein domains
  • Single-pass transmembrane proteins

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