Molecular biology enzymes · Hong Kong

Enzymes engineered for certainty.

High-fidelity PCR, qPCR, reverse transcription, cloning and isothermal amplification — reagents built for reproducible results and dependable supply, delivered from Hong Kong to labs worldwide.

12Flagship product lines
5Workflow categories
EVNext®AI-designed polymerase core
The cistrom standard

Built on enzyme engineering, not repackaging.

cistrom brings a portfolio of self-developed, proprietary enzymes to the international market — the same reagents trusted by molecular labs, now with brand, documentation and supply built for overseas customers.

Proprietary enzymes

Core polymerases such as EVNext® are designed in-house via AlphaFold3 structure prediction, site-directed mutagenesis and molecular-dynamics screening — protected by granted patents.

Batch-to-batch consistency

Fermentation, purification and modification are controlled under a dedicated QC system, so performance you validate today is the performance you receive on every reorder.

Supply built for export

Manufacturer-direct pricing, stable inventory and OEM / custom formulation — starting from a Hong Kong base that keeps lead times short for the region and beyond.

Flagship catalog

Master mixes and kits for the core molecular workflow.

Twelve flagship product lines across five categories, each available in multiple pack sizes. Catalog numbers shown; request current pricing and datasheets for your region.

01 PCR & Isothermal Amplification

From routine amplification to high-fidelity cloning templates and field-friendly isothermal detection.

2× EVNext® HiFi PCR ProMix
(Dye Plus 1)

P230

A high-fidelity master mix powered by the AI-engineered EVNext® polymerase (~200× Taq fidelity). Fast extension, robust across 25–75% GC, amplifies 1–20 kb targets and reads dU-containing templates. Loading dye pre-added for direct gel analysis.

~200× Taq fidelityup to 20 kb5 sec/kbdirect-load dye
P230A1 mL
P230B5 mL

2× EVNext® Green Taq PCR ProMix

T207

A ready-to-use Taq master mix for routine and rapid PCR — colony screening, genotyping and general amplification. Green format for immediate electrophoresis, economical at scale in bulk pack sizes.

routine / fast PCRdirect-loadbulk sizes
T207A5 mL
T207B50 mL

EVNext® One-Step HiFi RT-PCR Kit
(+gDNA clearer)

S068

Single-tube reverse transcription and high-fidelity PCR from RNA, with an integrated gDNA-removal step for clean, specific amplicons — ideal for cloning and sequencing from RNA templates.

RNA → ampliconhigh fidelitygDNA clearer
S068A50 µL rxn × 50
S068B50 µL rxn × 250

LAMP / RT-LAMP FluorDetect Kit

B166

Isothermal amplification with real-time fluorescence readout for DNA and RNA targets. Rapid, equipment-light detection suited to rapid screening and point-of-need workflows.

isothermalDNA + RNAfluorescent readout
B166A25 µL rxn × 20
B166B25 µL rxn × 100

02 Cloning & Ligation

Assemble and ligate constructs quickly and reliably.

Hipro DNA Assembly Cloning Kit

K001

Seamless, sequence-independent assembly of one or multiple fragments into any vector in a single tube — directional, scar-free cloning for construct building and library work.

seamlessmulti-fragmentsingle-tube
K001A10 µL rxn × 25
K001B10 µL rxn × 50

T4 Quick Ligation Mix

K004

Fast, high-efficiency ligation of cohesive- and blunt-ended fragments in minutes — a convenient master mix for TA cloning and routine subcloning.

5-minute ligationsticky + bluntTA cloning
K004A10 µL rxn × 50
K004B10 µL rxn × 100

03 Reverse Transcription

First-strand cDNA synthesis for downstream PCR and qPCR.

PreScript Ⅳ RT ProMix For qPCR
(+gDNA clearer)

R423

A qPCR-optimized reverse-transcription master mix with built-in genomic-DNA removal, delivering sensitive, reproducible cDNA for accurate downstream quantification.

qPCR-optimizedgDNA clearerhigh sensitivity
R423A20 µL rxn × 50
R423B20 µL rxn × 100

UniFirst Strand cDNA Synthesis Kit
(+gDNA clearer)

R437

A versatile first-strand cDNA kit for both PCR and qPCR, with integrated gDNA removal — broad template compatibility and efficient full-length synthesis.

PCR + qPCRgDNA clearerfull-length cDNA
R437A20 µL rxn × 50
R437B20 µL rxn × 100

04 qPCR

Dye-based and probe-based quantitative PCR master mixes with universal instrument compatibility.

EVNext® Universal SYBR qPCR Mix

S055

A high-performance SYBR Green master mix with hot-start polymerase and a universal passive reference dye — specific, reproducible quantification across a wide dynamic range and complex, high-GC templates, on any qPCR platform.

hot-startuniversal ROX8-log linearityhigh GC
S055A5 mL
S055B25 mL

2× Robust U+ Probe qPCR ProMix

S040

A robust probe-based (hydrolysis probe) qPCR master mix with U+ (dUTP/UNG) carry-over protection — high sensitivity and multiplexing capability for demanding detection and diagnostics-oriented workflows.

probe / multiplexU+ anti-contaminationhigh sensitivity
S040A5 mL
S040B25 mL

05 One-Step RT-qPCR

Single-tube reverse transcription plus quantitative PCR from RNA — dye and probe formats.

One-Step U+ RT-qPCR SYBR Kit
(+gDNA clearer)

S067

Dye-based one-step RT-qPCR combining reverse transcription and SYBR detection in a single tube, with U+ carry-over protection and gDNA removal for clean, sensitive RNA quantification.

one-step SYBRU+ protectiongDNA clearer
S067A20 µL rxn × 100
S067B20 µL rxn × 500

EVNext® U+ One-Step RT-qPCR Probe Kit

S054

Probe-based one-step RT-qPCR for specific, multiplex-capable RNA detection in a single tube, with U+ anti-contamination — well suited to pathogen and viral RNA assays.

one-step probemultiplexU+ protection
S054A25 µL rxn × 100
S054B25 µL rxn × 400
Order & tools

Everything you need to spec, order and receive.

From picking the right master mix to a numbered quote and a QC certificate with your lot — the practical side of ordering from cistrom.

The EVNext® core

Polymerases designed, not just discovered.

01

AI-guided design

Structure prediction (AlphaFold3), site-directed mutagenesis, domain fusion and molecular-dynamics simulation converge on a purpose-built enzyme.

02

Fidelity you can cite

NGS unique-molecular-index measurement places EVNext® fidelity at roughly 200× Taq — low error rates even on high-GC templates.

03

dUTP-tolerant

A re-engineered dUTP binding pocket lets the enzyme read uracil-containing templates, unlocking UDG/dUTP anti-contamination for high-fidelity work.

04

Stable in the real world

Retains activity after a week at 37 °C or 20 freeze–thaw cycles — reagents that survive shipping and bench reality.

Positioning

“A dedicated overseas enzyme brand — reliable reagents, transparent documentation, manufacturer-direct supply.”

cistrom launches with molecular biology enzymes, with an antibody portfolio to follow.
Why partner with cistrom

Manufacturer-direct, from Hong Kong outward.

Direct from the maker

No layers of distribution between you and the source. Better pricing, faster answers on technical and custom requests.

Custom & OEM

Bulk enzymes, custom formulations and OEM master mixes — including application-specific assays such as HPV and ASFV detection reagents.

Growing portfolio antibodies soon

Enzymes today, antibodies next — a single, dependable partner for your reagent supply as your needs expand.

Get in touch

Request a quote or a datasheet.

Tell us the catalog numbers and volumes you need. We’ll come back with current pricing, documentation and lead times for your region.

Hong Kong SAR · serving Asia-Pacific & global