CLTC Antibody, FITC conjugated

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Description

Definition and Target

CLTC Antibody, FITC Conjugated is a fluorescently labeled monoclonal or polyclonal antibody targeting the clathrin heavy chain (CLTC), a 192 kDa protein critical for forming clathrin-coated vesicles involved in intracellular trafficking . FITC conjugation enables direct visualization under fluorescence microscopy or flow cytometry, bypassing the need for secondary antibodies .

Immunofluorescence (IF/ICC)

  • Protocol: Cells are fixed, permeabilized, and incubated with CLTC-FITC antibody (1:50–1:500 dilution) . Example: Detection in HepG2 and HeLa cells showed distinct vesicular staining patterns .

  • Advantage: Direct conjugation reduces experimental steps and background noise .

Flow Cytometry

  • Intracellular Staining: Permeabilized HepG2 cells treated with 0.8 µg/10⁶ cells of CL488-26523 exhibited specific CLTC signal, validated via isotype controls .

Immunohistochemistry (IHC)

  • Tissue Staining: CLTC-FITC antibodies (e.g., M03134-2) detected CLTC in paraffin-embedded pancreatic cancer, renal carcinoma, and tonsil tissues .

Key Research Findings

  • Viral Entry Mechanisms: CLTC knockout reduced but did not abolish SFTSV infection, implicating clathrin-mediated endocytosis as a primary viral entry route .

  • Drug Delivery Studies: FITC-conjugated probes (e.g., cisplatin-loaded exosomes) demonstrated clathrin-independent trafficking, highlighting alternative pathways .

Validation Data

  • Specificity: Western blot analyses confirm reactivity at ~180 kDa in human, mouse, and rat lysates .

  • Controls: Isotype-matched antibodies and unstained samples are critical for minimizing background .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
We typically dispatch orders within 1-3 working days of receipt. Delivery times may vary depending on the purchase method and location. Please contact your local distributor for specific delivery time estimates.
Synonyms
Clathrin heavy chain 1 (Clathrin heavy chain on chromosome 17) (CLH-17), CLTC, CLH17 CLTCL2 KIAA0034
Target Names
Uniprot No.

Target Background

Function
Clathrin is a major protein found in the polyhedral coat of coated pits and vesicles. Two distinct adapter protein complexes link the clathrin lattice to either the plasma membrane or the trans-Golgi network. Clathrin functions as a component of the TACC3/ch-TOG/clathrin complex, which is thought to contribute to the stabilization of kinetochore fibers during mitotic spindle formation by acting as an inter-microtubule bridge. This complex is essential for maintaining kinetochore fiber tension. Clathrin also plays a role in the early stages of autophagosome formation.
Gene References Into Functions
  1. This research provides biochemical evidence for separate regulation and distinct functional niches for CHC17 and CHC22 in HeLa cells. The greater stability of the CHC22 coat compared to the CHC17 coat may be relevant to its excessive accumulation with GLUT4 during insulin resistance. PMID: 29097553
  2. This study demonstrates that clathrin, including the clathrin population associated with internal vesicles, regulates lymphocyte migration by controlling actin rearrangements at the leading edge. PMID: 27405273
  3. The novel association of several endocytosis-associated proteins, particularly CLTC and SCAMP3, has been linked to hepatocellular carcinoma progression. PMID: 27519163
  4. MiR-199a-5p suppresses tumorigenesis by targeting CLTC in hepatocellular carcinoma. PMID: 28261837
  5. SMAP2 immunoprecipitated clathrin and AP-1 through a putative clathrin-binding domain and a CALM-binding domain. SMAP2 mutants that did not interact with clathrin or AP-1 were unable to localize to recycling endosomes. PMID: 26136365
  6. The CHC:ESR1 interaction is necessary to sustain estradiol signaling. PMID: 25860340
  7. Autophagy contributed to Cx31.1 degradation, and clathrin may be involved in the autophagy of Cx31.1. PMID: 25388970
  8. Data suggest that by binding to both clathrin and F-actin, mammalian actin-binding protein 1 (mAbp1; HIP-55 or SH3P7) is specifically recruited at a late stage of clathrin-coated pit (CCP) formation, which subsequently recruits dynamin to CCPs. PMID: 25690657
  9. Our data support a model in which nascent Hepatitis C Virus particles associate with apoE in the endoplasmic reticulum and exit cells following a clathrin-dependent transendosomal secretory route. PMID: 25631092
  10. These data indicate that clathrin is required for the function of AP-1- and GGA-coated carriers at the trans-Golgi network but may be dispensable for outward traffic en route to the plasma membrane. PMID: 24407285
  11. SNX9 and CHC function in the same molecular pathway for chromosome alignment and segregation, which is dependent on their direct association. PMID: 23861900
  12. Clathrin interacts with Rab5 and plays a fundamental role in the entry and intracellular survival of B. abortus via interaction with lipid rafts and actin rearrangement. PMID: 23940042
  13. High clathrin heavy chain expression promotes tumor pancreatic growth and angiogenesis through regulation of HIF-1alpha and VEGF signaling. PMID: 23228632
  14. This study reveals a novel functional role of clathrin-coated structure in GMR signaling and the oncogenesis of JAK2V617F. PMID: 22935703
  15. The authors demonstrate that clathrin promotes clustering of the vaccinia virus actin tail nucleator A36 and host N-WASP, which activates actin nucleation through the Arp2/3 complex. PMID: 22980331
  16. Depletion of clathrin heavy chain (CHC)17, but not the CHC22 clathrin isoform, by RNA interference (RNAi) induces centrosome amplification and multipolar spindles. PMID: 22891263
  17. Electron tomography reveals that Rab6 is essential to the trafficking of trans-Golgi clathrin and COPI-coated vesicles and the maintenance of Golgi cisternal number. PMID: 22335553
  18. These results indicate that Echovirus 7 is internalized by clathrin-mediated endocytosis. PMID: 22496312
  19. Postmitotic Golgi reassembly requires the clathrin heavy chain (CHC). PMID: 21965600
  20. Clathrin is required for lamellipodium formation. PMID: 22010197
  21. Our findings strongly suggest that clathrin and clathrin-mediated signaling pathways are involved in the inflammatory signal transduction of orbital fibroblasts in Graves ophthalmopathy. PMID: 21917865
  22. CHC functions as a built-in molecular brake that ensures tight control of basal NF-kappaB activation and gene expression in unstimulated cells. PMID: 21364927
  23. Data suggest that clathrin's role in intermicrotubule bridging can be fulfilled not only by trimers but also by dimers, and that the membrane trafficking and mitotic functions of clathrin are independent and separable. PMID: 21362119
  24. The authors now report that the integrase domain of Gag-Pol is required for the incorporation of clathrin into HIV-1 virions. PMID: 21289110
  25. Clathrin is recruited to the mitotic spindle by TACC3 and ch-TOG. Together the complex forms inter-microtubule bridges in kinetochore fibers. PMID: 21297582
  26. These data indicate that the endocytic uptake of the clostridial glucosylating toxins involves a dynamin-dependent process that is mainly governed by clathrin. PMID: 20498856
  27. Data show in mammalian cells that the heavy chain of clathrin interacts with Atg16L1 and is involved in the formation of Atg16L1-positive early autophagosome precursors. PMID: 20639872
  28. The association between aurora A phosphorylation and spindle apparatus; regulation from aurora A is mediated by CHC in recruiting phospho-TACC3 and subsequently ch-TOG to mitotic spindles. PMID: 20566684
  29. Endocytosis of FcalphaR is clathrin- and dynamin-dependent, but is not regulated by Rab5, and the endocytic motif is not located in the cytoplasmic domain of FcalphaR. PMID: 19859085
  30. Neither clathrin nor AP-2 is essential for the internalization of epidermal growth factor. PMID: 12960147
  31. Clathrin heavy chain phosphorylation and dephosphorylation are involved in TCR internalization; this is a regulatory mechanism linking TCR signaling to endocytosis. PMID: 15067034
  32. Nuclear CHC is required for the transactivation of p53 target genes and plays a distinct role from clathrin-mediated endocytosis. PMID: 16618797
  33. Syt I plays a pivotal role in mediating cAMP- and Ca(2+)-induced endocytosis of NHE3 (but not in inhibition of activity) through cargo recognition of NHE3 and subsequent recruitment of AP2-clathrin assembly required for membrane endocytosis. PMID: 17307723
  34. Results establish a role for the retromer complex in retrograde transport of the B-subunit of Shiga toxin, and strongly suggest that clathrin and retromer function in consecutive retrograde sorting steps on early endosomes. PMID: 17550971
  35. Nuclear CHC plays a role distinct from clathrin-mediated endocytosis. PMID: 17952123
  36. The clathrin inhibitor phenylarsine oxide prevented SubAB entry and BiP cleavage in SubAB-treated Vero, HeLa and N2A cells demonstrating that SubAB internalization is clathrin-dependent. PMID: 18042253
  37. Cytosolic p53 may participate in the regulation of clathrin-mediated endocytosis to control the correct signaling from EGFR. PMID: 18363968
  38. The endocytic clathrin machinery can internalize double-membrane vesicles into cells. PMID: 18656476
  39. Endocytosis of shiga toxin (Stx) in Ramos cells requires Syk activity and that Syk is recruited to the uptake site of Stx. PMID: 19289168
  40. Data compared each paralogue in functional assays of endocytosis and mitosis, and find that CHC17 and CHC22 are functionally equivalent. PMID: 19509056
  41. Clathrin serves as a regulator of SNX4-dependent transport; upon clathrin release, dynein may bind SNX4 and mediate retrograde movement. PMID: 19529763
  42. GAK and CHC cooperated in the same pathway and interacted in mitosis to regulate the formation of a functional spindle. PMID: 19654208
  43. Structural modeling analyses predict that an Asn1288 residue in CHC is crucial for binding to p53. In fact, substitution of this Asn to Ala of CHC diminished its ability to interact with p53, leading to reduced activity to transactivate p53. PMID: 19766654
  44. The assembly efficiency of the various hepatitis delta virus genotypes correlates well with the clathrin heavy chain-binding activity of their HDAg-Ls and coincides with the severity of disease outcome. PMID: 19793827

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Database Links

HGNC: 2092

OMIM: 118955

KEGG: hsa:1213

STRING: 9606.ENSP00000269122

UniGene: Hs.491351

Protein Families
Clathrin heavy chain family
Subcellular Location
Cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Membrane, coated pit; Peripheral membrane protein; Cytoplasmic side. Melanosome. Cytoplasm, cytoskeleton, spindle.

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