ChIP Kits

<h2>What are ChIP buffers?</h2>
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ChIP buffers are the aqueous formulations used at each stage of a chromatin immunoprecipitation protocol: cell lysis buffer disrupts the plasma membrane and releases nuclear content, nuclear lysis buffer solubilizes chromatin under conditions compatible with subsequent immunoprecipitation, sonication buffer maintains chromatin stability during shearing, ChIP dilution buffer reduces SDS concentration from the lysis buffer to allow antibody-antigen binding, sequential wash buffers with increasing ionic strength and detergent remove non-specifically bound chromatin while preserving the specific antibody-antigen-DNA complex, and elution buffer releases the captured complex from the antibody-bead resin before de-crosslinking.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" role="presentation">MN Digestion Buffer used in MNase-based workflows for enzymatic fragmentation of&nbsp; chromatin&nbsp;</li>
<li dir="ltr" role="presentation">Chromatin Shearing Buffer using sonification for chromatin disruption and preparation</li>
<li dir="ltr" role="presentation">5X MN Stop Buffer for the termination of enzymatic digestion reactions</li>
<li dir="ltr" role="presentation">Chromatin Dilution Buffer used in ChIP assays to provide optimized conditions for antibody binding&nbsp;</li>
<li dir="ltr" role="presentation">Chromatin Wash Buffer I, II, and III for background reduction and step-by-step non-specific binding removal&nbsp;</li>
<li dir="ltr" role="presentation">ChIP DNA Binding Buffer for purification and capture of immunoprecipitated DNA</li>
<li dir="ltr" role="presentation">5X Chromatin Elution Buffer for protein&ndash;DNA complexes recovery</li>
<li dir="ltr" role="presentation">5M NaCl for enhancing elution and chromatin stabilization</li>
<li dir="ltr" role="presentation">Nuclei Prep Buffer used before chromatin extraction for superior nuclear isolation</li>
</ul>
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<h2>How to use ChIP buffers</h2>
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Always add protease inhibitors to lysis and wash buffers immediately before use
Protease inhibitors must be added fresh to cell lysis and nuclear lysis buffers immediately before use, since most inhibitors are unstable in aqueous solution and lose activity quickly, and without them, nuclear proteases released during lysis will degrade histone tails and reduce ChIP enrichment of histone modifications.
Confirm SDS concentration is diluted before immunoprecipitation
High SDS in the nuclear lysis buffer is necessary for chromatin solubilization and sonication, but must be diluted approximately 10-fold using ChIP dilution buffer before antibody addition, since high SDS disrupts antibody-antigen binding and reduces immunoprecipitation efficiency.
Keep all buffers and chromatin on ice throughout the workflow after lysis
Chromatin prepared for ChIP is sensitive to non-specific interactions and protease activity after cell lysis, and maintaining samples at 4&deg;C throughout all lysis, sonication, immunoprecipitation, and wash steps minimizes these effects and preserves specificity of the enrichment.
Optimize wash buffer stringency to balance specificity against yield
ChIP wash buffers are applied sequentially at increasing ionic strength and detergent concentration to remove non-specifically bound chromatin; conditions too stringent can also strip the specific antibody-antigen-DNA complex from the beads, reducing yield, so optimization of wash conditions for each antibody-target combination improves performance.
Confirm elution buffer composition fits your downstream application
Standard ChIP elution buffers containing SDS and sodium bicarbonate release the protein-DNA complex and reverse crosslinks, but high SDS in the eluate can inhibit some NGS library preparation enzymes, making a DNA cleanup step after elution important before proceeding to library prep.
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<h2>Specifications context</h2>
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Protease inhibitor cocktails, added fresh to lysis buffers immediately before ChIP, are a standard component across kit formats and in-house protocols, since even brief protease activity can compromise histone modification detection by degrading the histone tails that ChIP antibodies recognize. As of 2026, ChIP buffer formulations compatible with low-input chromatin and NGS library preparation continue to be optimized for primary cell and tissue ChIP workflows.
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP and request a quote today to get high-quality ChIP buffers for your lab.

Buffers

MSDS

5M NaCl (1 ml)

D5210-7-1 by Zymo Research is 5&nbsp;M NaCl solution, 1&nbsp;ml, a component of the Zymo-Spin ChIP Kit (D5210). Used in high-salt wash steps during chromatin immunoprecipitation (ChIP) protocols. Available separately for component replenishment.

Manufacturer

Shipping Condition

Storage Condition

5X Chromatin Elution Buffer (10 ml)

D5210-6-10 by Zymo Research is a 5× concentrated Chromatin Elution Buffer (10 mL) used for sample processing in chromatin immunoprecipitation (ChIP) assays performed with the Zymo-Spin ChIP Kit.

5X MN Stop Buffer (6 ml)

D5220-4 by Zymo Research is the 5X MN Stop Buffer (6 ml), used with the EZ Nucleosomal DNA Prep Kit to terminate micrococcal nuclease digestion and preserve nucleosomal DNA fragment length for ChIP-seq, ATAC-seq, and related chromatin analysis workflows. Ordered as a standalone replacement when this buffer component is depleted.

ChIP DNA Binding Buffer

D5201-1-100 ChIP DNA Binding Buffer by Zymo Research — 100 ml; 5:1 ratio to ChIP sample; tolerates 1% SDS, 5% Triton X-100/Tween-20/Sarkosyl; Zymo-Spin I and IC column compatible; room-temp storage.

ChIP DNA Binding Buffer (100 ml)

ChIP DNA Binding Buffer (50 ml)

<h2>What are ChIP kits?</h2>
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ChIP (chromatin immunoprecipitation) kits provide all the components needed to enrich a specific protein-DNA complex from fixed, sheared chromatin using an antibody against the protein of interest, whether a histone modification like H3K4me3 or a DNA-binding protein like a transcription factor. A complete ChIP kit covers: formaldehyde crosslinking of proteins to DNA in intact cells or tissue, cell lysis and nuclear extraction, chromatin shearing to appropriate fragment sizes, immunoprecipitation using an antibody pre-bound to protein A/G beads, sequential washing to remove non-specific binding, elution of the antibody-protein-DNA complex, de-crosslinking to release the DNA, and purification of the enriched DNA for downstream analysis.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
<a href="https://mbpinc.net/reagents/epigenetics/chip-kits/buffers">Buffers: </a>for immunoprecipitation, chromatin preparation, elution, and washing workflows. Includes Chromatin Shearing Buffer, MN Digestion Buffer, and Chromatin Wash Buffers, designed to support efficient chromatin cleanup, fragmentation, and recovery in ChIP assays
</li>
</ul>
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<h2>How to choose and use ChIP kits</h2>
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Decide between sonication-based and enzymatic chromatin shearing
Sonication shears chromatin mechanically into fragments typically 200&ndash;1000 bp through several optimized burst-and-cool cycles, while enzymatic kits use micrococcal nuclease (MNase) or similar enzymes to cleave chromatin at accessible linker regions. Each approach has different resolution characteristics and cell-type-specific optimization requirements.
Confirm your ChIP kit is compatible with your antibody and magnetic bead format
Most modern ChIP kits use magnetic protein A or protein G Dynabeads to capture the antibody-antigen complex during immunoprecipitation, and matching the bead type to the antibody species and isotype is important for efficient capture and low background.
Plan sonication optimization as a required step before your ChIP experiment
Fragment size after sonication, ideally 200&ndash;750 bp for most ChIP-seq applications, must be confirmed by gel electrophoresis or Bioanalyzer before proceeding, since fragment size directly affects both immunoprecipitation efficiency and the resolution of the resulting ChIP-seq data.
Include an input chromatin control and an isotype control antibody
Running an aliquot of the pre-immunoprecipitation chromatin as an input control normalizes for differences in chromatin accessibility across the genome, while an isotype-matched antibody control establishes background enrichment levels above which true binding sites can be distinguished.
Keep all steps after cell lysis cold to prevent protein degradation
Chromatin prepared for ChIP is sensitive to protease activity and non-specific interactions after formaldehyde fixation, and including protease inhibitors in all lysis and wash buffers, as well as keeping samples cold throughout, reduces background and preserves specificity of the immunoprecipitation.
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<h2>Specifications context</h2>
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Sonication requires careful optimization for each cell type and instrument, typically involving pilot experiments at varying pulse widths, total times, and rest intervals, with fragment size evaluated by gel electrophoresis after de-crosslinking to confirm the target range of 200&ndash;750 bp before a full ChIP experiment is run. As of 2026, low-input and ultra-low-input ChIP kits continue to expand access to ChIP experiments from limited cell numbers such as primary cell populations and rare clinical samples, while nano-ChIP and CUT&amp;RUN approaches provide complementary alternatives for very low cell inputs where classical ChIP requires too many cells.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at Molecular Biology Products Inc. (MBP) to get premium-quality ChIP reagents and buffers for your lab.

DataSheet

Protocol

ChIP DNA Clean & Concentrator™

D5201 by Zymo Research purifies ChIP DNA at any workflow step in 2 minutes with ≥6 µl elution volume and 70–90% recovery for fragments from 50 bp to 23 kb. The binding buffer is formulated to tolerate antibodies, detergents, and Proteinase K, making intermediate cleanups and final elution cleanup equally seamless. Designed for ChIP-seq, ChIP-qPCR, and array-based downstream applications.

Elution Volume

Processing Time

Recovery

Size Range

Storage

ChIP DNA Clean & Concentrator™ (50 Preps.)(Uncapped Columns)

ChIP DNA Clean & Concentrator™ (50 Preps.)(Capped Columns)

Chromatin Dilution Buffer (30 ml)

D5210-2-30 Chromatin Dilution Buffer by Zymo Research — 30 ml, room-temperature storage — dilutes ChIP-grade antibody during chromatin immunoprecipitation. Compatible with Zymo-Spin ChIP Kit (D5209, D5210).

Chromatin Shearing Buffer (30 ml)

D5210-1-30 by Zymo Research is a 30 ml chromatin shearing buffer for nuclei preparation and sonication in ChIP workflows, supporting reproducible fragment sizing to 100–600 bp. Sold as a standalone refill for the Zymo-Spin ChIP Kit (D5210).

Chromatin Wash Buffer I (30 ml)

D5210-3-30 by Zymo Research is Chromatin Wash Buffer I, 30 mL. Used as the first wash of Protein A bead/antibody/chromatin complexes in ChIP workflows. Compatible with the Zymo-Spin ChIP Kit (D5209, D5210). Sold separately. Store at room temperature.

Chromatin Wash Buffer II (30 ml)

D5210-4-30 by Zymo Research is Chromatin Wash Buffer II, a 30 ml buffer for the second chromatin wash step in the Zymo-Spin ChIP Kit (D5209, D5210) workflow. Stored at room temperature; available individually for kit buffer replenishment.

EZ Nucleosome DNA Prep Kit (20 Preps.)

D5220 by Zymo Research is the EZ Nucleosome DNA Prep Kit (20 preps) — isolates nucleosomal DNA from ≤10⁶ mammalian or yeast cells in under 45 minutes. Includes Micrococcal Nuclease, Atlantis dsDNase, and spin-column purification. Yield up to 25 µg; A260/A280 ≥1.8; 70–90% recovery for 75 bp–10 kb fragments.

Applicable For

Processing Volume

Purity

Sample Source

Sample Storage

Yield

MN Digestion Buffer (50 ml)

MN Digestion Buffer (D5220-3) by Zymo Research — 50 ml buffer optimized for micrococcal nuclease (MNase) digestion of single- and double-stranded DNA and RNA. Used in nucleosomal DNA preparation; compatible with EZ Nucleosomal DNA Prep Kit (D5220). Room temperature storage. Made in the USA.

Nuclei Prep Buffer

D5220-2 by Zymo Research is Nuclei Prep Buffer for chromatin immunoprecipitation (ChIP). Used at 500 µl (with protease inhibitors) to resuspend cross-linked cell pellets before chromatin shearing. Compatible with Zymo-Spin ChIP Kit (D5209, D5210). Store at room temperature. Available in 30 mL and 50 mL.