Date published: 2026-7-20

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Claudin Antibodies

Santa Cruz Biotechnology supplies a comprehensive collection of Claudin monoclonal antibodies for understanding tight junctions and their role in cellular barriers. Claudin monoclonal antibodies are compatible with multiple techniques, including western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), flow cytometry (FCM), and enzyme-linked immunosorbent assay (ELISA). Claudins are integral membrane proteins that play a critical role in the formation and maintenance of tight junctions, which regulate paracellular permeability and maintain cell polarity. Claudins are essential for the proper functioning of epithelial and endothelial barriers, influencing processes such as tissue homeostasis and immune response. Dysregulation of claudin expression has been implicated in various diseases, including cancer and inflammatory disorders. Understanding claudin function and expression patterns can provide valuable insights into disease mechanisms and potential therapeutic targets. Research utilizing claudin monoclonal antibodies has revealed important aspects of barrier function in different tissues and organs. Ongoing studies continue to uncover new roles for claudins in development and disease progression. Santa Cruz Biotechnology monoclonal antibodies for claudins support researchers worldwide in advancing scientific knowledge of cellular barriers and their impact on human health.

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Claudin Antibodies

Empty Table HeaderProduct NameCATALOG #ISOTYPEEPITOPEAPPLICATIONSSpeciesCitationsRATING

claudin-1 Antibody (A-9)

sc-166338mouse IgG2b κ168-207 (h)WB, IP, IF, IHC(P), ELISAm, r, h
90
(25)

claudin-1 Antibody (XX7)

sc-81796mouse IgG2a κ1-212 (h)WB, IP, IF, IHC(P), ELISAm, r, h
25
(10)

claudin-1 Antibody (D-4)

sc-137121mouse IgG1 κ168-207 (h)WB, IP, IF, ELISAm, r, h
9
(5)

claudin-2 Antibody (3F1)

sc-293233mouse IgG2a κ29-80 (h)WB, IP, ELISAm, r, h
14
(2)

claudin-3 Antibody (1E7)

sc-517546mouse IgG2bFL (h)WB, IF, IHC(P)h
4
(1)

claudin-4 Antibody (A-12)

sc-376643mouse IgG1 κ183-209 (h)WB, IP, IF, IHC(P), ELISAm, r, h
29
(10)

claudin-5 Antibody (A-12)

sc-374221mouse IgG1 κ167-218 (h)WB, IP, IF, ELISAh
29
(14)

claudin-6 Antibody (A-4)

sc-393671mouse IgG1 κ191-220 (h)WB, IP, IF, ELISAm, r, h
5
(5)

claudin-9 Antibody (E-7)

sc-398836mouse IgG1 κ191-217 (h)WB, IP, IF, ELISAm, r, h
3
(1)

claudin-10 Antibody (H-10)

sc-373700mouse IgG1 κ171-228 (h)WB, IP, IF, ELISAm, r, h
1
(1)

claudin-11 Antibody (D-8)

sc-271232mouse IgA184-207 (h)WB, IP, IF, IHC(P), ELISAm, r, h
12
(7)

claudin-19 Antibody (C-5)

sc-365967mouse IgG2b κ160-224 (h)WB, IP, IF, IHC(P), ELISAm, r, h
5
(6)

claudin-19 Antibody (B-3)

sc-390274mouse IgG1 κ185-219 (m)WB, IP, IF, ELISAm, r, h

new

(1)

claudin-19 Antibody (D-9)

sc-365690mouse IgG2a κ160-224 (h)WB, IP, IF, IHC(P), ELISAh
1
(1)

claudin-19 Antibody (H-4)

sc-365968mouse IgG2b κ160-224 (h)WB, IP, IF, IHC(P), ELISAm, r, h

new

(1)

Claudin siRNA, shRNA Plasmid and shRNA Lentiviral Particle Gene Silencers

Empty Table HeaderProduct NameCATALOG #SpeciesAPPLICATIONSMARKERCitationsRATING

claudin-1 siRNA (h)

sc-43040hGene SilencingN/A
9
(0)

claudin-1 shRNA Plasmid (h)

sc-43040-SHhGene SilencingPuromycin
9
(0)

claudin-1 shRNA (h) Lentiviral Particles

sc-43040-VhGene SilencingPuromycin
9
(0)

claudin-1 siRNA (m)

sc-43041mGene SilencingN/A
1
(0)

claudin-1 shRNA Plasmid (m)

sc-43041-SHmGene SilencingPuromycin
1
(0)

claudin-1 shRNA (m) Lentiviral Particles

sc-43041-VmGene SilencingPuromycin
1
(0)

claudin-2 siRNA (h)

sc-62124hGene SilencingN/A
3
(0)

claudin-2 shRNA Plasmid (h)

sc-62124-SHhGene SilencingPuromycin
3
(0)

claudin-2 shRNA (h) Lentiviral Particles

sc-62124-VhGene SilencingPuromycin
3
(0)

claudin-2 siRNA (m)

sc-62125mGene SilencingN/A0
(0)

claudin-2 shRNA Plasmid (m)

sc-62125-SHmGene SilencingPuromycin0
(0)

claudin-2 shRNA (m) Lentiviral Particles

sc-62125-VmGene SilencingPuromycin0
(0)

claudin-3 siRNA (h)

sc-43042hGene SilencingN/A
1
(0)

claudin-3 shRNA Plasmid (h)

sc-43042-SHhGene SilencingPuromycin
1
(0)

claudin-3 shRNA (h) Lentiviral Particles

sc-43042-VhGene SilencingPuromycin
1
(0)

claudin-3 siRNA (m)

sc-43043mGene SilencingN/A0
(0)

claudin-3 shRNA Plasmid (m)

sc-43043-SHmGene SilencingPuromycin0
(0)

claudin-3 shRNA (m) Lentiviral Particles

sc-43043-VmGene SilencingPuromycin0
(0)

claudin-4 siRNA (h)

sc-35070hGene SilencingN/A
2
(0)

claudin-4 shRNA Plasmid (h)

sc-35070-SHhGene SilencingPuromycin
2
(0)

claudin-4 shRNA (h) Lentiviral Particles

sc-35070-VhGene SilencingPuromycin
2
(0)

claudin-4 siRNA (m)

sc-35071mGene SilencingN/A0
(0)

claudin-4 shRNA Plasmid (m)

sc-35071-SHmGene SilencingPuromycin0
(0)

claudin-4 shRNA (m) Lentiviral Particles

sc-35071-VmGene SilencingPuromycin0
(0)

claudin-5 siRNA (h)

sc-43044hGene SilencingN/A
2
(0)

claudin-5 shRNA Plasmid (h)

sc-43044-SHhGene SilencingPuromycin
2
(0)

claudin-5 shRNA (h) Lentiviral Particles

sc-43044-VhGene SilencingPuromycin
2
(0)

claudin-5 siRNA (m)

sc-43045mGene SilencingN/A
3
(0)

claudin-5 shRNA Plasmid (m)

sc-43045-SHmGene SilencingPuromycin
3
(0)

claudin-5 shRNA (m) Lentiviral Particles

sc-43045-VmGene SilencingPuromycin
3
(0)

claudin-6 siRNA (h)

sc-43046hGene SilencingN/A0
(0)

claudin-6 shRNA Plasmid (h)

sc-43046-SHhGene SilencingPuromycin0
(0)

claudin-6 shRNA (h) Lentiviral Particles

sc-43046-VhGene SilencingPuromycin0
(0)

claudin-6 siRNA (m)

sc-43047mGene SilencingN/A0
(0)

claudin-6 shRNA Plasmid (m)

sc-43047-SHmGene SilencingPuromycin0
(0)

claudin-6 shRNA (m) Lentiviral Particles

sc-43047-VmGene SilencingPuromycin0
(0)

claudin-7 siRNA (h)

sc-43048hGene SilencingN/A
1
(0)

claudin-7 shRNA Plasmid (h)

sc-43048-SHhGene SilencingPuromycin
1
(0)

claudin-7 shRNA (h) Lentiviral Particles

sc-43048-VhGene SilencingPuromycin
1
(0)

claudin-7 siRNA (m)

sc-43049mGene SilencingN/A0
(0)

claudin-7 shRNA Plasmid (m)

sc-43049-SHmGene SilencingPuromycin0
(0)

claudin-7 shRNA (m) Lentiviral Particles

sc-43049-VmGene SilencingPuromycin0
(0)

claudin-8 siRNA (h)

sc-44865hGene SilencingN/A0
(0)

claudin-8 shRNA Plasmid (h)

sc-44865-SHhGene SilencingPuromycin0
(0)

claudin-8 shRNA (h) Lentiviral Particles

sc-44865-VhGene SilencingPuromycin0
(0)

claudin-8 siRNA (m)

sc-44866mGene SilencingN/A0
(0)

claudin-8 shRNA Plasmid (m)

sc-44866-SHmGene SilencingPuromycin0
(0)

claudin-8 shRNA (m) Lentiviral Particles

sc-44866-VmGene SilencingPuromycin0
(0)

claudin-9 siRNA (h)

sc-43050hGene SilencingN/A
1
(0)

claudin-9 shRNA Plasmid (h)

sc-43050-SHhGene SilencingPuromycin
1
(0)

claudin-9 shRNA (h) Lentiviral Particles

sc-43050-VhGene SilencingPuromycin
1
(0)

claudin-9 siRNA (m)

sc-43051mGene SilencingN/A
1
(0)

claudin-9 shRNA Plasmid (m)

sc-43051-SHmGene SilencingPuromycin
1
(0)

claudin-9 shRNA (m) Lentiviral Particles

sc-43051-VmGene SilencingPuromycin
1
(0)

claudin-10 siRNA (h)

sc-43052hGene SilencingN/A0
(0)

claudin-10 shRNA Plasmid (h)

sc-43052-SHhGene SilencingPuromycin0
(0)

claudin-10 shRNA (h) Lentiviral Particles

sc-43052-VhGene SilencingPuromycin0
(0)

claudin-10 siRNA (m)

sc-43053mGene SilencingN/A0
(0)

claudin-10 shRNA Plasmid (m)

sc-43053-SHmGene SilencingPuromycin0
(0)

claudin-10 shRNA (m) Lentiviral Particles

sc-43053-VmGene SilencingPuromycin0
(0)

claudin-11 siRNA (h)

sc-43054hGene SilencingN/A0
(0)

claudin-11 shRNA Plasmid (h)

sc-43054-SHhGene SilencingPuromycin0
(0)

claudin-11 shRNA (h) Lentiviral Particles

sc-43054-VhGene SilencingPuromycin0
(0)

claudin-11 siRNA (m)

sc-43055mGene SilencingN/A0
(0)

claudin-11 shRNA Plasmid (m)

sc-43055-SHmGene SilencingPuromycin0
(0)

claudin-11 shRNA (m) Lentiviral Particles

sc-43055-VmGene SilencingPuromycin0
(0)

claudin-12 siRNA (h)

sc-72915hGene SilencingN/A0
(0)

claudin-12 shRNA Plasmid (h)

sc-72915-SHhGene SilencingPuromycin0
(0)

claudin-12 shRNA (h) Lentiviral Particles

sc-72915-VhGene SilencingPuromycin0
(0)

claudin-12 siRNA (m)

sc-72916mGene SilencingN/A0
(0)

claudin-12 shRNA Plasmid (m)

sc-72916-SHmGene SilencingPuromycin0
(0)

claudin-12 shRNA (m) Lentiviral Particles

sc-72916-VmGene SilencingPuromycin0
(0)

claudin 13 siRNA (m)

sc-142362mGene SilencingN/A0
(0)

claudin 13 shRNA Plasmid (m)

sc-142362-SHmGene SilencingPuromycin0
(0)

claudin 13 shRNA (m) Lentiviral Particles

sc-142362-VmGene SilencingPuromycin0
(0)

claudin-14 siRNA (h)

sc-60391hGene SilencingN/A0
(0)

claudin-14 shRNA Plasmid (h)

sc-60391-SHhGene SilencingPuromycin0
(0)

claudin-14 shRNA (h) Lentiviral Particles

sc-60391-VhGene SilencingPuromycin0
(0)

claudin-14 siRNA (m)

sc-60392mGene SilencingN/A0
(0)

claudin-14 shRNA Plasmid (m)

sc-60392-SHmGene SilencingPuromycin0
(0)

claudin-14 shRNA (m) Lentiviral Particles

sc-60392-VmGene SilencingPuromycin0
(0)

claudin-15 siRNA (h)

sc-43056hGene SilencingN/A0
(0)

claudin-15 shRNA Plasmid (h)

sc-43056-SHhGene SilencingPuromycin0
(0)

claudin-15 shRNA (h) Lentiviral Particles

sc-43056-VhGene SilencingPuromycin0
(0)

claudin-15 siRNA (m)

sc-43057mGene SilencingN/A0
(0)

claudin-15 shRNA Plasmid (m)

sc-43057-SHmGene SilencingPuromycin0
(0)

claudin-15 shRNA (m) Lentiviral Particles

sc-43057-VmGene SilencingPuromycin0
(0)

claudin-17 siRNA (h)

sc-72917hGene SilencingN/A
1
(0)

claudin-17 shRNA Plasmid (h)

sc-72917-SHhGene SilencingPuromycin
1
(0)

claudin-17 shRNA (h) Lentiviral Particles

sc-72917-VhGene SilencingPuromycin
1
(0)

claudin-17 siRNA (m)

sc-72918mGene SilencingN/A0
(0)

claudin-17 shRNA Plasmid (m)

sc-72918-SHmGene SilencingPuromycin0
(0)

claudin-17 shRNA (m) Lentiviral Particles

sc-72918-VmGene SilencingPuromycin0
(0)

claudin-18 siRNA (h)

sc-105208hGene SilencingN/A0
(0)

claudin-18 shRNA Plasmid (h)

sc-105208-SHhGene SilencingPuromycin0
(0)

claudin-18 shRNA (h) Lentiviral Particles

sc-105208-VhGene SilencingPuromycin0
(0)

claudin-18 siRNA (m)

sc-142363mGene SilencingN/A0
(0)

claudin-18 shRNA Plasmid (m)

sc-142363-SHmGene SilencingPuromycin0
(0)

claudin-18 shRNA (m) Lentiviral Particles

sc-142363-VmGene SilencingPuromycin0
(0)

claudin-19 siRNA (h)

sc-88300hGene SilencingN/A0
(0)

claudin-19 shRNA Plasmid (h)

sc-88300-SHhGene SilencingPuromycin0
(0)

claudin-19 shRNA (h) Lentiviral Particles

sc-88300-VhGene SilencingPuromycin0
(0)

claudin-19 siRNA (m)

sc-142364mGene SilencingN/A0
(0)

claudin-19 shRNA Plasmid (m)

sc-142364-SHmGene SilencingPuromycin0
(0)

claudin-19 shRNA (m) Lentiviral Particles

sc-142364-VmGene SilencingPuromycin0
(0)

claudin-20 siRNA (h)

sc-95642hGene SilencingN/A0
(0)

claudin-20 shRNA Plasmid (h)

sc-95642-SHhGene SilencingPuromycin0
(0)

claudin-20 shRNA (h) Lentiviral Particles

sc-95642-VhGene SilencingPuromycin0
(0)

claudin-20 siRNA (m)

sc-142365mGene SilencingN/A0
(0)

claudin-20 shRNA Plasmid (m)

sc-142365-SHmGene SilencingPuromycin0
(0)

claudin-20 shRNA (m) Lentiviral Particles

sc-142365-VmGene SilencingPuromycin0
(0)

claudin-22 siRNA (m)

sc-142366mGene SilencingN/A0
(0)

claudin-22 shRNA Plasmid (m)

sc-142366-SHmGene SilencingPuromycin0
(0)

claudin-22 shRNA (m) Lentiviral Particles

sc-142366-VmGene SilencingPuromycin0
(0)

claudin-23 siRNA (h)

sc-77716hGene SilencingN/A0
(0)

claudin-23 shRNA Plasmid (h)

sc-77716-SHhGene SilencingPuromycin0
(0)

claudin-23 shRNA (h) Lentiviral Particles

sc-77716-VhGene SilencingPuromycin0
(0)

claudin-23 siRNA (m)

sc-142367mGene SilencingN/A0
(0)

claudin-23 shRNA Plasmid (m)

sc-142367-SHmGene SilencingPuromycin0
(0)

claudin-23 shRNA (m) Lentiviral Particles

sc-142367-VmGene SilencingPuromycin0
(0)

claudin-25 siRNA (h)

sc-96560hGene SilencingN/A0
(0)

claudin-25 shRNA Plasmid (h)

sc-96560-SHhGene SilencingPuromycin0
(0)

claudin-25 shRNA (h) Lentiviral Particles

sc-96560-VhGene SilencingPuromycin0
(0)

Claudin CRISPR Knockout (KO) and HDR Plasmids

Empty Table HeaderProduct NameCATALOG #APPLICATIONSSpeciesCitationsRATING

claudin-1 CRISPR/Cas9 KO Plasmid (h)

sc-400609Gene Knockouth0
(0)

claudin-2 CRISPR/Cas9 KO Plasmid (h)

sc-402316Gene Knockouth0
(0)

claudin-2 HDR Plasmid (h)

sc-402316-HDRHomology Directed Repairh0
(0)

claudin-3 CRISPR/Cas9 KO Plasmid (h2)

sc-401756-KO-2Gene Knockouth0
(0)

claudin-3 HDR Plasmid (h2)

sc-401756-HDR-2Homology Directed Repairh0
(0)

claudin-4 CRISPR/Cas9 KO Plasmid (h2)

sc-401284-KO-2Gene Knockouth0
(0)

claudin-4 HDR Plasmid (h2)

sc-401284-HDR-2Homology Directed Repairh0
(0)

claudin-4 CRISPR/Cas9 KO Plasmid (m)

sc-419685Gene Knockoutm0
(0)

claudin-4 HDR Plasmid (m)

sc-419685-HDRHomology Directed Repairm0
(0)

claudin-5 CRISPR/Cas9 KO Plasmid (h)

sc-400734Gene Knockouth0
(0)

claudin-5 HDR Plasmid (h)

sc-400734-HDRHomology Directed Repairh0
(0)

claudin-6 CRISPR/Cas9 KO Plasmid (h)

sc-403405Gene Knockouth0
(0)

claudin-7 CRISPR/Cas9 KO Plasmid (h)

sc-403462Gene Knockouth0
(0)

claudin-7 HDR Plasmid (h)

sc-403462-HDRHomology Directed Repairh0
(0)

claudin-9 CRISPR/Cas9 KO Plasmid (h)

sc-403166Gene Knockouth0
(0)

claudin-9 HDR Plasmid (h)

sc-403166-HDRHomology Directed Repairh0
(0)

claudin-9 CRISPR/Cas9 KO Plasmid (m)

sc-425328Gene Knockoutm0
(0)

claudin-9 HDR Plasmid (m)

sc-425328-HDRHomology Directed Repairm0
(0)

claudin-11 CRISPR/Cas9 KO Plasmid (h)

sc-401859Gene Knockouth0
(0)

claudin-18 CRISPR/Cas9 KO Plasmid (h)

sc-404431Gene Knockouth0
(0)

Claudin CRISPR Double Nickase Plasmids

Empty Table HeaderProduct NameCATALOG #APPLICATIONSSpeciesCitationsRATING

claudin-1 Double Nickase Plasmid (h)

sc-400609-NICGene Knockouth0
(0)

claudin-1 Double Nickase Plasmid (h2)

sc-400609-NIC-2Gene Knockouth0
(0)

claudin-1 Double Nickase Plasmid (m)

sc-419682-NICGene Knockoutm0
(0)

claudin-1 Double Nickase Plasmid (m2)

sc-419682-NIC-2Gene Knockoutm0
(0)

claudin-3 Double Nickase Plasmid (h)

sc-401756-NICGene Knockouth0
(0)

claudin-3 Double Nickase Plasmid (h2)

sc-401756-NIC-2Gene Knockouth0
(0)

claudin-4 Double Nickase Plasmid (h)

sc-401284-NICGene Knockouth0
(0)

claudin-4 Double Nickase Plasmid (h2)

sc-401284-NIC-2Gene Knockouth0
(0)

claudin-6 Double Nickase Plasmid (h)

sc-403405-NICGene Knockouth0
(0)

claudin-6 Double Nickase Plasmid (h2)

sc-403405-NIC-2Gene Knockouth0
(0)

claudin-7 Double Nickase Plasmid (h)

sc-403462-NICGene Knockouth0
(0)

claudin-7 Double Nickase Plasmid (h2)

sc-403462-NIC-2Gene Knockouth0
(0)

claudin-7 Double Nickase Plasmid (m)

sc-424740-NICGene Knockoutm0
(0)

claudin-7 Double Nickase Plasmid (m2)

sc-424740-NIC-2Gene Knockoutm0
(0)

Claudin CRISPR Activation Plasmids and Lentiviral Particles

Empty Table HeaderProduct NameCATALOG #APPLICATIONSSpeciesCitationsRATING

claudin-1 CRISPR Activation Plasmid (h)

sc-400609-ACTGene Activationh0
(0)

claudin-1 CRISPR Activation Plasmid (h2)

sc-400609-ACT-2Gene Activationh0
(0)

claudin-3 CRISPR Activation Plasmid (h)

sc-401756-ACTGene Activationh0
(0)

claudin-4 CRISPR Activation Plasmid (h)

sc-401284-ACTGene Activationh0
(0)

claudin-5 CRISPR Activation Plasmid (h)

sc-400734-ACTGene Activationh0
(0)

claudin-6 CRISPR Activation Plasmid (h)

sc-403405-ACTGene Activationh0
(0)

claudin-8 CRISPR Activation Plasmid (h)

sc-404251-ACTGene Activationh0
(0)

claudin-9 CRISPR Activation Plasmid (h)

sc-403166-ACTGene Activationh0
(0)

claudin-9 CRISPR Activation Plasmid (h2)

sc-403166-ACT-2Gene Activationh0
(0)