CD278/ICOS Rat mAb - Primary antibody, specific to CD278/ICOS, Rat IgG2b

Cat. No.: Ab109273
AVAILABLE TO ORDER
GRADE & PURITY Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Validated ? Validated grade — performance confirmed in defined applications before release. Use when you want documented assurance the reagent works as stated. Azide Free ? Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory. PBS Only ? PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers. ≥95%(SDS-PAGE) See COA
Application
Animal Model, Blocking, Flow Cytometry, Functional Assay
Host species
Rat
Reactive species
Mouse
Isotype
Rat IgG2b
Clone Number
7E.17G9
Conjugation
Unconjugated
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10μg
Ab109273-10μg
9
$67.90
50μg
Ab109273-50μg
4
$199.90
100μg
Ab109273-100μg
2
$279.90
1mg
Ab109273-1mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$419.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Carrier Free,Azide Free,Validated,PBS Only,≥95%(SDS-PAGE),See COA Azide Free,Carrier Free,PBS Only,Validated for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Do not freeze Ships Wet ice,Do not freeze Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Rat anti Mouse CD278/ICOS Antibody, Monoclonal (7E.17G9), could be used for in vivo blocking of ICOS/ICOSL signaling, Flow and so on.
Application
Flow: Use at an assay dependent concentration.
in vivo blocking of ICOS/ICOSL signaling: Use at an assay dependent concentration.
Protein Function
Enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. Essential both for efficient interaction between T and B-cells and for normal antibody responses to T-cell dependent antigens. Does not up-regulate the production of interleukin-2, but superinduces the synthesis of interleukin-10. Prevents the apoptosis of pre-activated T-cells. Plays a critical role in CD40-mediated class switching of immunoglobin isotypes.

Specifications

Product Name
CD278/ICOS Rat mAb - Primary antibody, specific to CD278/ICOS, Rat IgG2b
Synonyms
H4 | CCLP | Ly115 | Activation-inducible lymphocyte immunomediatory molecule | AILIM | AILIMCD278 | CD278 antigen | CD278 | CRP-1 | CVID1 | ICOS | inducible costimulator | inducible T-cell costimulator | inducible T-cell co-stimulator | MGC39850 | Activat
Specifications & Purity
Carrier Free, Azide Free, Validated, PBS Only, ≥95%(SDS-PAGE), See COA
Host species
Rat
Specificity
CD278/ICOS
Immunogen
Mouse ICOS cDNA and ICOS hexahistidine fusion protein
Conjugation
Unconjugated
Grade
Azide Free, Carrier Free, PBS Only, Validated
Isotype
Rat IgG2b
Light Chain Type
kappa
SDS-PAGE
150 kDa
Purification Method
Protein G purified
Concentration
See COA
Storage and Shipping
Shape
Liquid
Storage
Store at 2-8°C,Do not freeze
Shipped In
Wet ice,Do not freeze
Stability And Storage
Shipped at 4°C. Store at 4°C long term (12 months). Do not freeze. Upon receipt, it is recommended to aliquot.
Images

CD278/ICOS Rat mAb (Ab109273) - Flow Cytometry
Two-color flow cytometric analysis of CD278/ICOS expression on mouse splenocytes. Flow Cytometry analysis of unstimulated (left) or 500 ng/mL Ionomycin (I139530) and 10 ng/mL PMA (P408905) co-stimulated (right) C57BL/6 mouse spleen cells were stained with CD4 Rat mAb (FITC) (Ab181110) and CD278/ICOS Rat mAb (Ab109273) at 0.5 μg/mL. Two-color flow cytometric dot plots showing the correlated expression of CD4 versus CD278/ICOS (or Isotype control staining) were derived from gated events with the forward and side light-scatter characteristics of viable mononuclear cells.

Application
ApplicationDilution info
Flow Cytometry

Use at an assay dependent concentration.

in vivo blocking of ICOS/ICOSL signaling

Use at an assay dependent concentration.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Associated Targets(Human)
ICOS Tbio Inducible T-cell costimulator (0 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
ZJ24F0708831Certificate of AnalysisFeb 11, 2026 Ab109273
ZJ24F0708832Certificate of AnalysisFeb 11, 2026 Ab109273
ZJ24F0708833Certificate of AnalysisFeb 11, 2026 Ab109273
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

Need help choosing the grade?

Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

View Carrier Free grade guide → View Validated grade guide → View Azide Free grade guide → View PBS Only grade guide →

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