Natalizumab (anti-ITGA4) - Primary antibody, specific to ITGA4, Human IgG4, Antibody of integrin α4β1;Antibody of integrin; alpha 4 subunit (antigen CD49D; alpha 4 subunit of VLA-4 receptor), Antibody of integrin α4β1;Antibody of integrin; alpha 4 subunit (antigen CD49D; alpha 4 subunit of VLA-4 receptor)

CAS: 189261-10-7 Cat. No.: Ab175611 PubChem CID: 108147
AVAILABLE TO ORDER
GRADE & PURITY Animal Free ? Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material. Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Recombinant ? Recombinant — produced via recombinant expression for defined sequence and consistency. Use for reproducible, animal-free proteins of known origin. Validated ? Validated grade — performance confirmed in defined applications before release. Use when you want documented assurance the reagent works as stated. ExactAb™ ? ExactAb™ — Aladdin's antibody line emphasizing precision and validated quality. Use for reliable, specificity-validated antibody applications. Low Endotoxin ? Low-endotoxin grade — endotoxin reduced to low controlled levels. Use in sensitive biological work where high endotoxin would interfere. Azide Free ? Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory. ≥95%(SDS-PAGE&SEC-HPLC) See COA
Application
Animal Model, ELISA, Flow Cytometry, Functional Assay
Host species
Human
Reactive species
Human
Isotype
Human IgG4
Conjugation
Unconjugated
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100μg
Ab175611-100μg
10
$65.90
1mg
Ab175611-1mg
4
$321.90
5mg
Ab175611-5mg
1
$725.90
10mg
Ab175611-10mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$1,171.90
Enter a quantity for the sizes you want to add.
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Why this grade

Carrier Free, Recombinant, ExactAb™, Low Endotoxin, Azide Free, Validated, Animal Free, ≥95%(SDS-PAGE&SEC-HPLC), See COA Animal Free,Azide Free,Carrier Free,ExactAb™,Low Endotoxin,Recombinant,Validated for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -80°C,Avoid repeated freezing and thawing Ships Dry ice packs + Cold packs 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

Natalizumab (anti-ITGA4) is a recombinant, humanized IgG4 monoclonal antibody, binds to α4β1-integrin and blocks its interaction with vascular cell adhesion molecule-1 (VCAM-1). Natalizumab (anti-ITGA4) can be used for the treatment of relapsing remitting multiple sclerosis and Crohn's disease. Natalizumab (anti-ITGA4) is also the first targeted therapy which blocks an essential mechanism for lymphocyte entry to the CNS and thus prevents acute demyelinating relapses.
Purity
>95% (SDS-PAGE&SEC)
Endotoxin Level
< 1.0EU/mg

Specifications

Product Name
Natalizumab (anti-ITGA4) - Primary antibody, specific to ITGA4, Human IgG4, Antibody of integrin α4β1;Antibody of integrin; alpha 4 subunit (antigen CD49D; alpha 4 subunit of VLA-4 receptor)
Synonyms
269C wild type antibody | Antigen CD49D, alpha 4 subunit of VLA 4 receptor antibody | CD49 antigen like family member D antibody | CD49 antigen-like family member D antibody | CD49d antibody | IA4 antibody | Integrin alpha 4 antibody | Integrin alpha 4 su
Specifications & Purity
Carrier Free, Recombinant, ExactAb™, Low Endotoxin, Azide Free, Validated, Animal Free, ≥95%(SDS-PAGE&SEC-HPLC), See COA
Host species
Human
Specificity
ITGA4
Conjugation
Unconjugated
Grade
Animal Free, Azide Free, Carrier Free, ExactAb™, Low Endotoxin, Recombinant, Validated
Action Type
INHIBITOR
Mechanism of action
Antibody of integrin α4β1;Antibody of integrin; alpha 4 subunit (antigen CD49D; alpha 4 subunit of VLA-4 receptor)
Isotype
Human IgG4
Light Chain Type
kappa
SDS-PAGE
26.1 kDa (Light Chain) & 51.3 kDa (Heavy Chain), under reducing conditions; 192.7 kDa, under non-reducing conditions.
Purification Method
Protein A purified
Concentration
See COA
CAS
189261-10-7
Storage and Shipping
Shape
Liquid
Storage
Store at -80°C,Avoid repeated freezing and thawing
Shipped In
Dry ice packs + Cold packs
Stability And Storage
Store at -80℃ for 24 months. Upon delivery aliquot. Avoid freeze/thaw cycle.
Images

Natalizumab (anti-ITGA4) (Ab175611) - Flow Cytometry
Flow Cytometry analysis of Jurkat cells labelling ITGA4 (red) with Natalizumab (anti-ITGA4) (Ab175611). Goat Anti-Human IgG (PE) (Ab175838) at a dilution of 1/1000 was used as the secondary antibody. Blue - Isotype control, human IgG (Ab170213). Black - Unlabelled control, cells without incubation with primary antibody.

Natalizumab (anti-ITGA4) (Ab175611) - SEC
The purity of Natalizumab (anti-ITGA4) (Ab175611) is more than 95% verified by HPLC.

Natalizumab (anti-ITGA4) (Ab175611) - Flow Cytometry
Flow Cytometry analysis of Raji cells labelling ITGA4 (red) with Natalizumab (anti-ITGA4) (Ab175611). Goat Anti-Human IgG (PE) (Ab175838) at a dilution of 1/1000 was used as the secondary antibody. Blue - Isotype control, human IgG (Ab170213). Black - Unlabelled control, cells without incubation with primary antibody.

Natalizumab (anti-ITGA4) (Ab175611) - Flow Cytometry
Flow Cytometry analysis of U937 cells labelling ITGA4 (red) with Natalizumab (anti-ITGA4) (Ab175611). Goat Anti-Human IgG (PE) (Ab175838) at a dilution of 1/1000 was used as the secondary antibody. Blue - Isotype control, human IgG (Ab170213). Black - Unlabelled control, cells without incubation with primary antibody.

Natalizumab (anti-ITGA4) (Ab175611) - Flow Cytometry
Flow Cytometry analysis of HeLa cells labelling ITGA4 (red) with Natalizumab (anti-ITGA4) (Ab175611). Goat Anti-Human IgG (PE) (Ab175838) at a dilution of 1/1000 was used as the secondary antibody. Blue - Isotype control, human IgG (Ab170213). Black - Unlabelled control, cells without incubation with primary antibody.

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

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Peptides
Direct ParentOligopeptides
Alternative Parents Phenylalanine and derivatives  Aspartic acid and derivatives  Leucine and derivatives  Methionine and derivatives  N-acyl-alpha amino acids and derivatives  Alpha amino acid amides  Amphetamines and derivatives  Dicarboxylic acids and derivatives  N-acyl amines  Tertiary carboxylic acid amides  Primary carboxylic acid amides  Secondary carboxylic acid amides  Sulfenyl compounds  Dialkylthioethers  Carboxylic acids  Organopnictogen compounds  Hydrocarbon derivatives  Carbonyl compounds  Organonitrogen compounds  Organic oxides  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Alpha-oligopeptide - Phenylalanine or derivatives - Methionine or derivatives - Aspartic acid or derivatives - Leucine or derivatives - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - N-substituted-alpha-amino acid - Alpha-amino acid or derivatives - Amphetamine or derivatives - Fatty acyl - Benzenoid - Dicarboxylic acid or derivatives - Fatty amide - N-acyl-amine - Monocyclic benzene moiety - Tertiary carboxylic acid amide - Carboxamide group - Secondary carboxylic acid amide - Primary carboxylic acid amide - Dialkylthioether - Carboxylic acid - Sulfenyl compound - Thioether - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Carbonyl group - Hydrocarbon derivative - Organic oxide - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ITGA4 Tclin Integrin alpha-4 (0 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ITGB1 Tclin Integrin beta-1 (0 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ITGB1 Tclin Fibronectin receptor beta (8 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGA4 Tclin Integrin alpha-4 (295 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha-4/beta-1 (2269 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGA4 Tclin Integrin alpha-4/beta-7 (610 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha-5/beta-1 (686 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha-V/beta-1 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha2/beta1 (69 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha1/beta1 complex (6 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin Integrin alpha-10/Integrin beta-1 (1 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ITGB1 Tclin ITGA6-ITGB1 complex (1 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
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
ZJ24F0606631Certificate of AnalysisApr 13, 2026 Ab175611
ZJ24F0606632Certificate of AnalysisApr 13, 2026 Ab175611
ZJ24F0606633Certificate of AnalysisApr 13, 2026 Ab175611
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 Animal Free grade guide → View Carrier Free grade guide → View Recombinant grade guide → View Validated grade guide → View ExactAb™ grade guide → View Low Endotoxin grade guide → View Azide Free grade guide →

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