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Antibodies

150 Results

Name Source Clonality &
Isotype
Host &
Formulation
Method Reactivity Immunogen/
Epitope
Specificity Availability
Huntingtin From labs (12)
P-htt-S421(Sandrine Humbert, Elzbieta A. Bryson, ... Michael E. Greenberg, and Frederic Saudou) polyclonal

(affinity purified)
IH, WB Human, Mouse imunogen = synthesized poloypeptide CSGGRSRSG pSIVELI, coupled to KLH Huntingtin phosphorylated at S421 -
HD 1-17(Vivian HookDepartments of Medicine and Neuroscience, UC San Diego)used in paper by Khoshman, 2002 polyclonal
Rabbit
(serum)
ELISA - imunogen = the fist 17 amino acids of htt, the peptide MATLEKLMK AFESLKSFC, with addition of C-term Cys residue for conj. to KLH seems to be especially good for human HD tissue --Ethan Signer, High Q Foundation -
EM38(Xiao-jiang LiEmory University) polyclonal

(serum)
- -   N-terminal huntingtin fragments with normal or expanded polyglutamine repeats; selective in human brain for huntingtin aggregates, only weak affinity for rodent huntingtin. -
HDC11A3(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG1

WB Rabbit, Human, Mouse immunogen at aa 2703-2911 Huntingtin -
HDA12G10(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG1

IF, WB Rabbit, Human, Mouse immunogen at aa 1171-1177 Huntingtin -
HDB1A1(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG1

WB Rabbit, Human, Mouse immunogen at aa 1844-2131 Huntingtin -
HDB1D10(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG2b

WB Rabbit, Human, Mouse immunogen at aa 2081-2086 Huntingtin -
HDA2C11(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG1

WB Rabbit, Human, Mouse immunogen at aa 1171-1177 Huntingtin -
HDA3E10(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG2a

IF, WB Rabbit, Human, Mouse immunogen at aa 1171-1177 Huntingtin -
HDB4D8(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG2b

WB Rabbit, Human, Mouse immunogen at aa 2081-2086 Huntingtin -
HDB4E10(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG1

IF, WB Rabbit, Human, Mouse immunogen at aa 1844-2131 Huntingtin -
HDB4F8(Greg MorrisN. E. Wales Institute)research group monoclonal
IgG2a

WB Rabbit, Human, Mouse immunogen at aa 2081-2086 Huntingtin -
Huntingtin From manufacturers (88)
Autogen Bioclear polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope mapping near the amino terminus of human Huntingtin (differs from corr. mouse sequence by two amino acids) Huntingtin -
Autogen Bioclear polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, WB Human, Mouse, Rat immunogen = epitope mapping near the carboxy terminus of human Huntingtin (differs from corr. mouse sequence by one amino acid) Huntingtin -
Biogenesis AdB Serotec polyclonal
Rabbit
(liquid Ig, purified, blue sepharose, PBS, azide)
IH, WB Human, Rodent (various) immunogen = peptide-hmw carrier huntingtin peptide, reacts with rat and human brain cells -
Biogenesis AdB Serotec monoclonal
IgG1
Mouse
(liquid, neat, ascites, no preserves)
IC, IH, IP, WB, ELISA Human, Monkey, Mouse, Rat immunogen = Huntingtin fragment from aa 181-810 as a fusion protein huntingtin protein, no other proteins by WB -
Cambio polyclonal
Rabbit
(serum)
- Human   Huntingtin peptide -
Accurate monoclonal
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 1171-1177 of huntingtin reacts with an epitope corresponding to the HDC region (aa 1171-1177) of the huntingtin protein -
Accurate monoclonal
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 1844-2131 of huntingtin reacts with an epitope corresponding to the HDC region (aa 1844-2131) of the huntingtin protein -
Accurate monoclonal
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 2703-2911 of huntingtin reacts with an epitope corresponding to the HDC region (aa 2703-2911) of the huntingtin protein -
Acris Antibodies monoclonal
IgG2a
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 997-1276 of huntingtin reacts with an epitope corresponding to the HDC region (aa 997-1276) of the huntingtin protein -
Acris Antibodies monoclonal
IgG1
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 1844-2131 of huntingtin reacts with an epitope corresponding to the HDC region (aa 1844-2131) of the huntingtin protein -
Acris Antibodies monoclonal
IgG1
Mouse
(liquid, purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recombinant protein corresponding to amino acids 2703-2911 of huntingtin reacts with an epitope corresponding to the HDC region (aa 2703-2911) of the huntingtin protein -
Cambio polyclonal
Rabbit
(serum)
WB -   Huntingtin peptide -
Cambio monoclonal
Mouse
(ascites)
- -   Huntingtin protein -
Euromedex monoclonal
IgG
Mouse
(liquid, ascites, no preserves)
IC, IH, WB, ELISA Human, Monkey, Mouse, Rat immunogen = Huntingtin fragment from aa 181 to aa 810 as a fusion protein Huntingtin. Cross-reaction on other proteins not detectable by Western blot -
Euromedex monoclonal
IgG
Mouse
(liquid, ascites, no preserves)
IC, IH, ELISA Human, Monkey, Mouse immunogen = Huntingtin fragment from aa 2146 to aa 2541 as a fusion protein Huntingtin. Cross-reaction on other proteins not detectable by Western blot -
Euromedex monoclonal
IgG
Mouse
(liquid, ascites, no preserves)
IC, IH, IP, WB, ELISA Human, Mouse immunogen = Huntingtin fragment from aa 1247 to aa 1646 as a fusion protein Huntingtin. Cross-reaction on other proteins not detectable by Western blot -
Fisher Scientific polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope mapping near the amino terminus of human Huntingtin (differs from corr. mouse sequence by two amino acids) Huntingtin -
Imgenex monoclonal
IgG1
Mouse
(liquid, purified, protein G, PBS, azide)
WB Human immunogen = GST fusion protein containing 62 glutamine amino acid repeat Huntingtin -
ISL (Immune Systems Limited) monoclonal
Mouse
(ascites)
- -   Huntingtin protein -
Santa Cruz polyclonal
IgG
Rabbit
(liquid, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope corr. to aa 2845-3144 mapping at the C-terminus of human Huntingtin Huntingtin -
Santa Cruz polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope mapping near the amino terminus of human Huntingtin (differs from corr. mouse sequence by two amino acids) Huntingtin -
Santa Cruz polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, WB Human, Mouse, Rat immunogen = epitope mapping near the carboxy terminus of human Huntingtin (differs from corr. mouse sequence by one amino acid) Huntingtin -
US Biological monoclonal
IgG1
Mouse
(liquid, ascites, no preserves)
IC, IH, WB, ELISA Human, Monkey, Mouse immunogen = Huntingtin fragment from aa 2146-2541 as a fusion protein Huntingtin Protein -
Europa monoclonal
Mouse
- Human   Huntingtin -
Europa monoclonal
Mouse
- Human   Huntingtin -
Europa monoclonal
Mouse
- Human   Huntingtin -
Europa monoclonal
Rat
- Human immunogen = aa 549-679 Huntingtin -
US Biological monoclonal
IgG2b
Mouse
(liquid, ascites, no preserves)
IC, IH, IP, WB, ELISA Human, Mouse immunogen = Huntingtin fragment from aa 1247 to 1646 as a fusion protein Huntingtin Protein; no detectable cross reactivity with other proteins by WB -
US Biological monoclonal
IgG1
Mouse
(liquid, no preserves)
IC, IH, IP, WB, ELISA Human, Monkey, Mouse, Rat immunogen = Huntingtin fragment from aa 181 to 810 as a fusion protein Huntingtin Protein; no detectable cross reactivity with other proteins by WB -
Anawa polyclonal
Ig
Rabbit
(liquid, serum. no preservative)
IH, WB Human, Rodent (various) Immunogen = synthetic human Huntingtin peptide sequence coupled to HMW carrier Huntingtin peptide -
Anawa monoclonal
IgG1
Mouse
(ascites)
IC, IH, IP, WB, ELISA Human (epitope within aa 181-810 of human protein) Huntingtin protein -
Anawa polyclonal
IgG
Rabbit
(liquid, IgG fraction, sterile filtered, azide)
ELISA Human - Huntingtin pS421 -
Autogen Bioclear polyclonal
IgG
Rabbit
(liquid, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope corr. to aa 2845-3144 mapping at the C-terminus of human Huntingtin Huntingtin -
Autogen Bioclear polyclonal
IgG
Rabbit
(liquid, affinity purified)
IF, IH, FC, WB Human, Mouse, Rat epitope corr. to aa 549-679 Huntingtin -
Biodesign Meridian LifeScience monoclonal
IgG1
Mouse
(liquid, protein-G purified, PBS, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recomb. protein corresponding to aa 2703-2911 of huntingtin huntingtin protein, 350 kDa band by WB; also detects smaller degradation products of huntingtin. Recognizes both denatured and native huntingtin in human brain -
Biodesign Meridian LifeScience monoclonal
IgG1
Mouse
(liquid, protein-G purified, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recomb. protein corresponding to aa 1844-2131 of huntingtin huntingtin protein, 350 kDa band by WB; also detects smaller degradation products of huntingtin -
Biodesign Meridian LifeScience monoclonal
IgG2a
Mouse
(liquid, protein-G purified, PBS, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recomb. protein corresponding to aa 997-1276 of huntingtin huntingtin protein, 350 kDa band by WB; also detects smaller degradation products of huntingtin. -
Biotrend monoclonal
IgG1
Mouse
(liquid, ascites)
IC, IH, IP, WB, ELISA Donkey, Human, Mouse, Rat immunogen = Huntington fragment from aa 181-810 as a fusion protein Huntingtin protein -
Biotrend polyclonal
Ig
Rabbit
(liquid, Ig fract., no preservative)
IH, WB Human, Rodent (various) immunogen = synthetic human Huntingtin Peptide sequence coupled to HMW carrier Huntingtin peptide, reacts with rat and human brain cells -
Biotrend polyclonal
Ig
Rabbit
(liquid, Ig fract, affinity purified, sterile filtered, buffer, azide)
ELISA Human - Huntingtin phos. at Ser421 -
Acris Antibodies polyclonal
IgG
Rabbit
(affinity purified)
ELISA Human - Huntingtin phos. at Ser421 -
Interchim monoclonal
IgG2a
Mouse
(liquid, protein-G purified, PBS, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recomb. protein corresponding to aa 997-1276 of huntingtin huntingtin protein, 350 kDa band by WB; also detects smaller degradation products of huntingtin. -
Interchim monoclonal
IgG2a
Mouse
(liquid, protein-G purified, PBS, azide)
IH, IP, WB Human, Mouse, Rabbit immunogen = recomb. protein corresponding to aa 997-1276 of huntingtin huntingtin protein, 350 kDa band by WB; also detects smaller degradation products of huntingtin. -
Europa monoclonal
Mouse
(purified)
- Human (epitope within aa 1844-2131) Reacts with an epitope corresponding to the HDB region -
Europa monoclonal
Mouse
(purified)
- Human (epitope within aa 2703-2911) Reacts with an epitope corresponding to the HDC region -
Europa monoclonal
Mouse
(purified)
- Human (epitope within aa 1171-1177) Reacts with an epitope corresponding to the HDA region -
Europa monoclonal
Mouse
(affinity purified)
- Human   Huntingtin -
GeneTex monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant protein corresponding to amino acids 1844-2131 of huntingtin reacts with an epitope corresponding to the HDC region (aa 1844-2131) of the huntingtin protein -
GeneTex monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant protein corresponding to amino acids 2703-2911 of huntingtin reacts with an epitope corresponding to the HDC region (aa 2703-2911) of the huntingtin protein -
ImmunoKontact monoclonal
Mouse
(purified)
- Human   Huntingtin protein -
ImmunoKontact polyclonal
IgG
Rabbit
(serum, affinity purified, phosphate, azide, no stabilizer)
IF, WB, ELISA Pig, Chimpanzee, Human, Mouse, Rat, Chicken immunogen = synthetic phospho peptide corresponding to aa 416-424 of Human huntingtin protein Huntingtin phos. at Ser421 -
Acris Antibodies monoclonal
IgG1
Mouse
(liquid, ascites, no preservative)
IH, ELISA Human, Monkey, Mouse, Rat Immunogen = huntingtin fragment from amino acids 181-810 Huntingtin -
Acris Antibodies polyclonal
IgG
Rabbit
(liquid, PBS, azide, purified)
IH, WB Human, Rat Immunogen = synthetic human Huntingtin peptide sequence coupled to HMW carrier Huntingtin -
GeneTex monoclonal
IgG1
Mouse
(liquid, PBS, azide, Protein G purified)
WB Human Immunogen = fusion protein containing 62 glutamine amino acid repeats Huntingtin -
GeneTex monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IF, IH, IP, WB Human, Mouse, Rat Immunogen = recombinant protein corresponding to amino acids 997-1276 of huntingtin Reacts with an epitope corresponding to the HDB region (aa 997-1276) of the huntingtin protein -
GeneTex monoclonal
IgG2a
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = aa 1171-1177 (HDA region of huntingtin Reacts with epitope corresponding to the HDA region (aa 1171-1177) of huntingtin protein -
GeneTex monoclonal
IgG1
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = aa 1844-2131 corresponding to HDB region of huntingtin Reacts with epitope corresponding to HDB region (aa 1844-2131) of huntingtin protein -
GeneTex monoclonal
IgG1
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to aa 2703-2911 of huntingtin Huntingtin (denatured and native) -
ISL (Immune Systems Limited) monoclonal
IgG1
Mouse
(liquid, ascites, Neat, no preservative)
IC, IH, IP, WB, ELISA Human, Monkey, Mouse, Rat Immunogen = amino acid residues 181-810 as a fusion protein Huntingtin -
ISL (Immune Systems Limited) polyclonal
Rabbit
(liquid, PBS, azide, purified)
IH, WB Human, Rodent (various) Immunogen = peptide sequence with hmw carrier Huntingtin -
Interchim monoclonal
IgG1
Mouse
(liquid, protein-G purified, PBS, azide)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recomb. protein corresponding to aa 2703-2911 of huntingtin Huntingtin protein (350 kDa by WB); also detects smaller degradation products of huntingtin. Recognizes denatured and native huntingtin in human brain -
Rockland polyclonal
Rabbit
(liquid, sterile filtered, potassium phosphate saline, azide, affinity purified)
IF, WB, ELISA Human, Mouse, Rat Immunogen = synthetic peptide corresponding aa 416-424 of human huntingtin Phosphorylated huntingtin S421 -
AbD Serotec monoclonal
IgG1
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to aa 1844-2131 of Huntingtin Huntingtin HDB region amino acids 1844-2131 (350kDa) -
AbD Serotec monoclonal
IgG2a
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to aa 997-1276 of Huntingtin Huntingtin HDA region amino acids 1171-1177 (350kDa) -
AbD Serotec monoclonal
IgG1
Mouse
(liquid, PBS, azide, Protein G purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to aa 2703-2911 of huntingtin Huntingtin HDC region aa 2703-2911 (350Kda) -
tebu-bio polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, WB Human, Mouse, Rat immunogen = epitope mapping near the carboxy terminus of human Huntingtin (differs from corr. mouse sequence by one amino acid) Huntingtin -
tebu-bio polyclonal
IgG
Goat
(liquid, affinity purified, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope mapping near the amino terminus of human Huntingtin (differs from corr. mouse sequence by two amino acids) Huntingtin -
tebu-bio polyclonal
IgG
Rabbit
(liquid, PBS, azide, gelatin)
IH, IP, WB Human, Mouse, Rat immunogen = epitope corr. to aa 2845-3144 mapping at the C-terminus of human Huntingtin Huntingtin -
tebu-bio polyclonal
IgG
Rat
(liquid, PBS, gelatin, azide)
IF, FC, WB Human, Mouse, Rat immunogen = Huntingtin fusion recomb. protein aa 549-679 Huntingtin -
US Biological monoclonal
IgG
Rat
(ascites, liquid, azide)
IC, IH, WB Human, Monkey, Mouse, Rat immunogen = Huntingtin fusion protein 549-679, fused to Glutathione S-tranferase Huntingtin protein residues 549-679 -
VWR International, Inc. polyclonal
Rabbit
(liquid, sterile filtered, potassium phosphate saline, azide, affinity purified)
IF, WB, ELISA Human, Mouse, Rat Immunogen = synthetic peptide corresponding aa 416-424 of human huntingtin Phosphorylated huntingtin S421 -
US Biological monoclonal
IgG1
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to amino acids 1844 - 2131 of huntingtin Reacts with an epitope corresponding to the HDB region (amino acids 1844-2131) of the huntingtin protein -
US Biological monoclonal
IgG1
Mouse
(liquid, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to amino acids 2703 - 2911 of huntingtin Reacts with an epitope corresponding to the HDC region (2703-2911 amino acids) of the huntingtin protein. -
US Biological monoclonal
IgG2a
Mouse
(liquid, PBS, azide, purified)
IH, IP, WB Human, Mouse, Rabbit Immunogen = recombinant protein corresponding to amino acids 997 -1276 of huntingtin Reacts with an epitope corresponding to the HDA region (amino acids 1171-1177) of the huntingtin protein -
US Biological monoclonal
IgG1
Mouse
(liquid, PBS, azide, Protein G purified)
WB Human Immunogen = fusion protein containing 62 glutamine amino acid repeat. Recognizes Huntingtin protein (Huntington Disease) -
BD Transduction monoclonal
IgG1
Mouse
(liquid, glycerol, phosphate buffer, BSA, azide)
IF, WB Mouse, Rat immunogen = rat HAP1-A, aa 100-289 HAP1, 85/98 kDa by WB -
Novus Biologicals monoclonal
IgG2a
Mouse
(liquid, PBS, purified, azide)
IH, IP, WB Rabbit, Human, Mouse immunogen = recombinant protein corresp. to aa 997-1276 of huntingtin reacts with an epitope corresponding to the HDC region (aa 997-1276) of the huntingtin protein -
Novus Biologicals monoclonal
IgG1
Mouse
(liquid, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant fragment, corresp. to aa 997-1276 of Huntingtin reacts with an epitope corresponding to the HDA region (aa 1171 - 1177) of the huntingtin protein. -
Novus Biologicals polyclonal
IgG
Rabbit
(liquid, KPBS, azide, purified)
ELISA Pig, Human immunogen = synthetic peptide: R S R S G pS I V E, corresp. to aa 416-424 of human Huntingtin antibody has not been conclusively tested for specificity for phospho S421 Huntingtin; (190kDa) (neuronal cytoplasm) -
Novus Biologicals polyclonal
Mouse
(liquid, sera, glycerol, no preservative)
WB Human immunogen = partial recombinant to huntingtin HD - huntingtin (Huntington disease) -
Novus Biologicals monoclonal
IgG
Mouse
(liquid, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant fragment, corresp. to aa 2703-2911 of Huntingtin HDC region (aa 2703-2911) of the huntingtin protein -
Novus Biologicals monoclonal
IgG1
Mouse
(liquid, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant fragment, corresp. to aa 1844-2131 of Huntingtin HDB region (aa 1844-2131) of the huntingtin protein; (denatured and native) -
Novus Biologicals monoclonal
IgG1, κ
Mouse
(liquid, purified, no preservative)
WB Human immunogen = partial recombinant to huntingtin HD - huntingtin (Huntington disease) -
Abcam monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IH, IP, WB Rabbit, Human, Mouse immunogen = recom. protein corresp. to amino acids 1844-2131 of huntingtin reacts with an epitope corresponding to the HDC region (aa 1844-2131) of the huntingtin protein -
Abcam monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IH, IP, WB Human, Mouse, Rat immunogen = recombinant protein corresponding to amino acids 2703-2911 of huntingtin reacts with an epitope corresponding to the HDC region (aa 2703-2911) of the huntingtin protein -
Abcam monoclonal
IgG1
Mouse
(liquid, IgG fraction, purified, azide)
IF, IH, IP, WB Human, Mouse, Rat immunogen = recombinant protein corresponding to amino acids 997-1276 of huntingtin reacts with an epitope corresponding to the HDB region (aa 997-1276) of the huntingtin protein -
Abcam monoclonal
IgG
Rabbit
(liquid, supernatant, BSA, Tris, azide)
FC, IC, IF, IH, WB Human, Mouse, Rat immunogen = synthetic peptide corresp. to residues specific to the apopain cleavage site of human Huntingtin - -
Abcam polyclonal
IgG
Rabbit
(liquid, KPO4-saline, azide, affinity purified)
ELISA Human immunogen = synthetic peptide: R S R S G pS I V E, corresp. to aa 416-424 of human Huntingtin detects a 190kDa band in PC-3 cells, which may correspond to Huntingtin. Stains neuronal cytoplasm in IH; specificity for phospho S421 Huntingtin is inconclusive -