IFN-β Rabbit Polyclonal Antibody

IFN-β Rabbit Polyclonal Antibody

 

IFN-α1 Rabbit Polyclonal Antibody

ES3900-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

IFN-α1 Rabbit Polyclonal Antibody

ES3900-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

IFN-ε Rabbit Polyclonal Antibody

ES4034-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

IFN-ε Rabbit Polyclonal Antibody

ES4034-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

IFN-ω Rabbit Polyclonal Antibody

ES4145-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IFN-ω Rabbit Polyclonal Antibody

ES4145-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

IFN-γ Rabbit Polyclonal Antibody

ES2593-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IFN-γ Rabbit Polyclonal Antibody

ES2593-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

IFN-αR2 Rabbit Polyclonal Antibody

ES4097-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IFN-αR2 Rabbit Polyclonal Antibody

ES4097-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

IFN-γRα Rabbit Polyclonal Antibody

ES4125-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IFN-γRα Rabbit Polyclonal Antibody

ES4125-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

IFN-γRα Rabbit Polyclonal Antibody

ES5839-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

IFN-γRα Rabbit Polyclonal Antibody

ES5839-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Anti-Rat IFN-? Rabbit Polyclonal Antibody

TA328585 Origene Technologies GmbH 100 µg Ask for price

IFN-α/βRα Rabbit Polyclonal Antibody

ES8642-100ul ELK Biotech 100ul 124 EUR
Description: IHC, ELISA

IFN-α/βRα Rabbit Polyclonal Antibody

ES8642-50ul ELK Biotech 50ul 74 EUR
Description: IHC, ELISA

IFN-α/βRα Rabbit Polyclonal Antibody

ES5837-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, ELISA

IFN-α/βRα Rabbit Polyclonal Antibody

ES5837-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, ELISA

Anti-Human IFN-? Rabbit Polyclonal Antibody

TA328344 Origene Technologies GmbH 100 µg Ask for price

Anti-Murine IFN-? Rabbit Polyclonal Antibody

TA328519 Origene Technologies GmbH 100 µg Ask for price

Rabbit Polyclonal IFN-beta Antibody

TA306437 Origene Technologies GmbH 100 µg Ask for price

IFN-β Polyclonal Antibody

E44H07406 EnoGene 100ul 255 EUR
Description: Biotin-Conjugated, FITC-Conjugated , AF350 Conjugated , AF405M-Conjugated ,AF488-Conjugated, AF514-Conjugated ,AF532-Conjugated, AF555-Conjugated ,AF568-Conjugated , HRP-Conjugated, AF405S-Conjugated, AF405L-Conjugated , AF546-Conjugated, AF594-Conjugated , AF610-Conjugated, AF635-Conjugated , AF647-Conjugated , AF680-Conjugated , AF700-Conjugated , AF750-Conjugated , AF790-Conjugated , APC-Conjugated , PE-Conjugated , Cy3-Conjugated , Cy5-Conjugated , Cy5.5-Conjugated , Cy7-Conjugated Antibody

IFN-β Polyclonal Antibody

E11-2035964 EnoGene 100ug/100ul 225 EUR
Description: Available in various conjugation types.

IFN-β Polyclonal Antibody

UB-GEN-10519 UpingBio 100 ul 200 EUR

Anti-Human IFN-?2 Rabbit Polyclonal Antibody

TA328346 Origene Technologies GmbH 100 µg Ask for price

Rabbit Anti Ifn Beta Polyclonal Antibody

CPBT-65624RI Creative Diagnostics 0.1 mg 540.54 EUR
Description: Rabbit

Biotinylated Anti-Rat IFN-? Rabbit Polyclonal Antibody

TA328582 Origene Technologies GmbH 50 µg Ask for price

IFN-γRα (phospho Tyr457) Rabbit Polyclonal Antibody

ES5838-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

IFN-γRα (phospho Tyr457) Rabbit Polyclonal Antibody

ES5838-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Biotinylated Anti-Human IFN-? Rabbit Polyclonal Antibody

TA328343 Origene Technologies GmbH 50 µg Ask for price

Biotinylated Anti-Murine IFN-? Rabbit Polyclonal Antibody

TA328518 Origene Technologies GmbH 50 µg Ask for price

IFN-α/βRα (phospho Tyr466) Rabbit Polyclonal Antibody

ES5836-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IFN-α/βRα (phospho Tyr466) Rabbit Polyclonal Antibody

ES5836-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

Rabbit Anti Human Ifn Beta Polyclonal Antibody

CPBT-65625RH Creative Diagnostics 50 µg 709.8 EUR
Description: Rabbit

Biotinylated Anti-Human IFN-?2 Rabbit Polyclonal Antibody

TA328345 Origene Technologies GmbH 50 µg Ask for price

Interferon alpha (IFN alpha) rabbit polyclonal antibody

PBL31101-1 Origene Technologies GmbH 1 x 10⁵ U Ask for price

Interferon alpha (IFN alpha) rabbit polyclonal antibody

PBL32100-1 Origene Technologies GmbH 2 x 10⁴ U Ask for price

Interferon alpha (IFN alpha) rabbit polyclonal antibody

PBL33100-1 Origene Technologies GmbH 500 µg Ask for price

C8 β Rabbit Polyclonal Antibody

ES8518-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

C8 β Rabbit Polyclonal Antibody

ES8518-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

LT-β Rabbit Polyclonal Antibody

ES8728-100ul ELK Biotech 100ul 124 EUR
Description: IHC, ELISA

LT-β Rabbit Polyclonal Antibody

ES8728-50ul ELK Biotech 50ul 74 EUR
Description: IHC, ELISA

TCR β Rabbit Polyclonal Antibody

ES3576-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

TCR β Rabbit Polyclonal Antibody

ES3576-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

PKI β Rabbit Polyclonal Antibody

ES6746-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, ELISA

PKI β Rabbit Polyclonal Antibody

ES6746-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, ELISA

PKC β Rabbit Polyclonal Antibody

ES6768-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

PKC β Rabbit Polyclonal Antibody

ES6768-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

LT-β Rabbit Polyclonal Antibody

ES2729-100ul ELK Biotech 100ul 124 EUR
Description: WB, IF, ELISA

LT-β Rabbit Polyclonal Antibody

ES2729-50ul ELK Biotech 50ul 74 EUR
Description: WB, IF, ELISA

ENaC β Rabbit Polyclonal Antibody

ES7126-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, WB, ELISA

ENaC β Rabbit Polyclonal Antibody

ES7126-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, WB, ELISA

S100 β Rabbit Polyclonal Antibody

ES8283-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

S100 β Rabbit Polyclonal Antibody

ES8283-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

TNF-β Rabbit Polyclonal Antibody

ES3624-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

TNF-β Rabbit Polyclonal Antibody

ES3624-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

GMF-β Rabbit Polyclonal Antibody

ES4243-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

GMF-β Rabbit Polyclonal Antibody

ES4243-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

Mi2-β Rabbit Polyclonal Antibody

ES4590-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, ELISA

Mi2-β Rabbit Polyclonal Antibody

ES4590-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, ELISA

IKKα/β Rabbit Polyclonal Antibody

ES4647-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IKKα/β Rabbit Polyclonal Antibody

ES4647-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

DGK-β Rabbit Polyclonal Antibody

ES4958-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

DGK-β Rabbit Polyclonal Antibody

ES4958-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

IκB-β Rabbit Polyclonal Antibody

ES6385-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

IκB-β Rabbit Polyclonal Antibody

ES6385-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

IKKα/β Rabbit Polyclonal Antibody

ES2601-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

IKKα/β Rabbit Polyclonal Antibody

ES2601-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

S100 β Rabbit Polyclonal Antibody

E12-451 EnoGene 100μg/100μl 255 EUR
Description: Available in various conjugation types.

S100 β Rabbit Polyclonal Antibody

EA254-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

S100 β Rabbit Polyclonal Antibody

EA254-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

IRE1α/β Rabbit Polyclonal Antibody

ES4513-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, ELISA

IRE1α/β Rabbit Polyclonal Antibody

ES4513-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, ELISA

Actin β Rabbit Polyclonal Antibody

ES1592-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

Actin β Rabbit Polyclonal Antibody

ES1592-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

GSK3α/β Rabbit Polyclonal Antibody

ES2486-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

GSK3α/β Rabbit Polyclonal Antibody

ES2486-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES3166-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES3166-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

TFIIE-β Rabbit Polyclonal Antibody

ES3587-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

TFIIE-β Rabbit Polyclonal Antibody

ES3587-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES3751-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES3751-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6544-100ul ELK Biotech 100ul 124 EUR
Description: IHC, IF, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6544-50ul ELK Biotech 50ul 74 EUR
Description: IHC, IF, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6545-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6545-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6546-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

PDGFR-β Rabbit Polyclonal Antibody

ES6546-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

β-actin Rabbit Polyclonal Antibody

ES1150-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

β-actin Rabbit Polyclonal Antibody

ES1150-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

β-actin Rabbit Polyclonal Antibody

E12-051 EnoGene 100μg/100μl 150 EUR
Description: Available in various conjugation types.

β-actin Rabbit Polyclonal Antibody

EA014-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF

β-actin Rabbit Polyclonal Antibody

EA014-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF

β-actin Rabbit Polyclonal Antibody

RA20259-100ul Reed Biotech 100 ul 298 EUR

β-actin Rabbit Polyclonal Antibody

RA20259-50ul Reed Biotech 50 ul 198 EUR

Tubulin β Rabbit Polyclonal Antibody

ES3656-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

Tubulin β Rabbit Polyclonal Antibody

ES3656-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

β Tubulin Rabbit Polyclonal Antibody

ES1186-100ul ELK Biotech 100ul 124 EUR
Description: WB

β Tubulin Rabbit Polyclonal Antibody

ES1186-50ul ELK Biotech 50ul 74 EUR
Description: WB

Adducin β Rabbit Polyclonal Antibody

ES1605-100ul ELK Biotech 100ul 124 EUR
Description: WB, IF, ELISA

Adducin β Rabbit Polyclonal Antibody

ES1605-50ul ELK Biotech 50ul 74 EUR
Description: WB, IF, ELISA

β Tubulin Rabbit Polyclonal Antibody

E12-226 EnoGene 100μg/100μl 225 EUR
Description: Available in various conjugation types.

β Tubulin Rabbit Polyclonal Antibody

EA058-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

β Tubulin Rabbit Polyclonal Antibody

EA058-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

β Tubulin Rabbit Polyclonal Antibody

RA20018-100ul Reed Biotech 100 ul 298 EUR

β Tubulin Rabbit Polyclonal Antibody

RA20018-50ul Reed Biotech 50 ul 198 EUR

β-Catenin Rabbit Polyclonal Antibody

ES8174-100ul ELK Biotech 100ul 124 EUR
Description: WB

β-Catenin Rabbit Polyclonal Antibody

ES8174-50ul ELK Biotech 50ul 74 EUR
Description: WB

Amyloid-β Rabbit Polyclonal Antibody

ES8472-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

Amyloid-β Rabbit Polyclonal Antibody

ES8472-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

Amyloid-β Rabbit Polyclonal Antibody

ES8491-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Amyloid-β Rabbit Polyclonal Antibody

ES8491-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES8621-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES8621-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES8860-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES8860-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES4892-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES4892-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Amyloid-β Rabbit Polyclonal Antibody

ES1652-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

Amyloid-β Rabbit Polyclonal Antibody

ES1652-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1862-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1862-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1863-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1863-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1864-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1864-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1865-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1865-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1866-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

Catenin-β Rabbit Polyclonal Antibody

ES1866-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

β-Catenin Rabbit Polyclonal Antibody

E12-318 EnoGene 100μg/100μl 225 EUR
Description: Available in various conjugation types.

β-Catenin Rabbit Polyclonal Antibody

EA147-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

β-Catenin Rabbit Polyclonal Antibody

EA147-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

β-Catenin Rabbit Polyclonal Antibody

RA20106-100ul Reed Biotech 100 ul 298 EUR

β-Catenin Rabbit Polyclonal Antibody

RA20106-50ul Reed Biotech 50 ul 198 EUR

Rabbit Polyclonal Anti-IFN-beta Antibody

TA352769 Origene Technologies GmbH 500 µg Ask for price

Synuclein-β Rabbit Polyclonal Antibody

ES3541-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, IF, ELISA

Synuclein-β Rabbit Polyclonal Antibody

ES3541-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, IF, ELISA

Fibrinogen β Rabbit Polyclonal Antibody

ES5239-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Fibrinogen β Rabbit Polyclonal Antibody

ES5239-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

Rabbit Polyclonal Anti-IFN-gamma Antibody

TA352748 Origene Technologies GmbH 500 µg Ask for price

Rabbit Polyclonal Anti-IFN-gamma Antibody

TA352770 Origene Technologies GmbH 500 µg Ask for price

Rabbit Polyclonal Anti-IFN-gamma Antibody

TA352782 Origene Technologies GmbH 500 µg Ask for price

Sarcoglycan-β Rabbit Polyclonal Antibody

ES3408-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

Sarcoglycan-β Rabbit Polyclonal Antibody

ES3408-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

Galactosidase β Rabbit Polyclonal Antibody

ES8420-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

Galactosidase β Rabbit Polyclonal Antibody

ES8420-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

Glucuronidase β Rabbit Polyclonal Antibody

ES5695-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

Glucuronidase β Rabbit Polyclonal Antibody

ES5695-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

β-actin Rabbit Rabbit Polyclonal Antibody(A283)

ES8449-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

β-actin Rabbit Rabbit Polyclonal Antibody(A283)

ES8449-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

β-actin Rabbit Rabbit Polyclonal Antibody(A284)

ES8450-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC

β-actin Rabbit Rabbit Polyclonal Antibody(A284)

ES8450-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC

Rabbit Polyclonal Catenin-β Antibody

TA325394 Origene Technologies GmbH 100 µl Ask for price

C/EBP β Rabbit Polyclonal Antibody

ES8935-100ul ELK Biotech 100ul 124 EUR
Description: WB, ELISA

C/EBP β Rabbit Polyclonal Antibody

ES8935-50ul ELK Biotech 50ul 74 EUR
Description: WB, ELISA

C/EBP β Rabbit Polyclonal Antibody

ES4490-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

C/EBP β Rabbit Polyclonal Antibody

ES4490-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

C/EBP β Rabbit Polyclonal Antibody

ES4491-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

C/EBP β Rabbit Polyclonal Antibody

ES4491-50ul ELK Biotech 50ul 74 EUR
Description: WB, IHC, ELISA

DNA pol β Rabbit Polyclonal Antibody

ES2185-100ul ELK Biotech 100ul 124 EUR
Description: WB, IHC, ELISA

 

IFN-β Rabbit Polyclonal Antibody