WB result of Histone H4 (Lactyl K8) Recombinant Rabbit mAb
Primary antibody: Histone H4 (Lactyl K8) Recombinant Rabbit mAb at 1/1000 dilution
Lane 1: untreated HeLa whole cell lysate 20 µg
Lane 2: HeLa treated with 100 mM Lactate sodium for 24 hours whole cell lysate 20 µg
Secondary antibody: Goat Anti- rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 11 kDa
Observed MW: 14 kDa
Histone H4 (Lactyl K8) Recombinant Rabbit mAb (S-3243-36)
Histone H4 (Lactyl K8) Recombinant Rabbit mAb (S-3243-36)
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Product Details
Product Details
Product Specification
| Host | Rabbit |
| Antigen | Histone H4 (Lactyl K8) |
| Synonyms | H4K8la |
| Immunogen | Synthetic Peptide |
| Location | Nucleus |
| Accession | P62805 |
| Clone Number | S-3243-36 |
| Antibody Type | Recombinant mAb |
| Isotype | IgG |
| Application | WB, IHC-P, ICC |
| Reactivity | Hu, Ms, Rt |
| Positive Sample | HeLa treated with 100 mM Lactate sodium for 24 hours, NIH/3T3 treated with 100 mM Lactate sodium for 24 hours |
| Purification | Protein A |
| Concentration | 0.5 mg/ml |
| Conjugation | Unconjugated |
| Physical Appearance | Liquid |
| Storage Buffer | PBS, 40% Glycerol, 0.05% BSA, 0.03% Proclin 300 |
| Stability & Storage | 12 months from date of receipt / reconstitution, -20 °C as supplied |
Dilution
| application | dilution | species |
| WB | 1:1000-1:2000 | Hu, Ms |
| IHC-P | 1:500 | Hu, Ms, Rt |
| ICC | 1:500 | Hu |
Background
Histone H4 (Lactyl K8), abbreviated as H4K8la, is a novel epigenetic modification involving the covalent attachment of a lactyl group to the 8th lysine residue of the histone H4 tail, serving as a direct molecular link between cellular glycolysis and gene transcriptional regulation. Discovered as part of the broader "histone lactylation" landscape, this mark is dynamically induced by high intracellular lactate levels, often resulting from hypoxia, intense exercise, or the Warburg effect in cancer cells. Functionally, H4K8la is strongly associated with the activation of specific gene programs; for instance, in macrophages, it accumulates during the late phase of polarization to promote the expression of reparative (M2-like) genes, thereby facilitating tissue repair and resolving inflammation, while in tumor microenvironments, it can drive the expression of oncogenes or factors supporting immune evasion. Mechanistically, the presence of the lactyl group at K8 alters chromatin structure and recruits specific "reader" proteins to enhance transcriptional elongation or initiation, distinguishing its regulatory role from the more constitutive H4K8 acetylation and highlighting its importance as a metabolic checkpoint in immunity, cancer progression, and developmental biology.
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Western Blot
WB result of Histone H4 (Lactyl K8) Recombinant Rabbit mAb
Primary antibody: Histone H4 (Lactyl K8) Recombinant Rabbit mAb at 1/1000 dilution
Lane 1: untreated NIH/3T3 whole cell lysate 20 µg
Lane 2: NIH/3T3 treated with 100 mM Lactate sodium for 24 hours whole cell lysate 20 µg
Secondary antibody: Goat Anti- rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 11 kDa
Observed MW: 14 kDa
Dot Blot
Dot blot result of Histone H4 (Lactyl K8) Recombinant Rabbit mAb
Lane 1: Histone H4 (Lactyl K8) modified peptide
Lane 2: Histone H4 (Lactyl K8) unmodified peptide control
Primary antibody: Histone H4 (Lactyl K8) Recombinant Rabbit mAb at 1/1000 dilution
Secondary antibody: Goat Anti-rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Immunohistochemistry
IHC shows positive staining in paraffin-embedded human colon. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human stomach. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human colon cancer. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human stomach cancer. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human endometrial cancer. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded mouse colon. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded mouse stomach. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded rat colon. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded rat stomach. Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution, followed by a HRP Polymer for Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Immunocytochemistry
ICC analysis of HeLa cells treated with Lactate sodium (100 mM, 24 hours) (top panel) and untreated HeLa cells (below panel). Anti-Histone H4 (Lactyl K8) antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 4% PFA and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue). Counterstain with tubulin (Red).
