iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Proximity-driven metallopeptide catalysis uses peptide recognition to place a dirhodium catalyst near a chosen region of a protein, where a broadly reactive diazo reagent can modify nearby side chains. In studies published in 2010 and 2011, researchers demonstrated that this positioning could direct modification to different residues in a protein domain. The result was a research method—not a universal or commercially established protein-editing technique.
How does proximity-driven protein modification work?
The method separates two jobs: molecular recognition chooses where the chemistry is concentrated, while the catalyst and reagent carry out the chemical reaction. In the 2011 study, a substrate peptide assembled with a dirhodium metallopeptide catalyst through coiled-coil interactions. That assembly brought the catalyst close to a target region. Researchers then added a diazo reagent to drive covalent modification of protein side chains. The Chemical Science paper describes the approach as modification based on molecular shape.
This is a different selectivity strategy from designing a reagent that reacts only with one amino-acid type. Instead, the peptide interaction localizes a catalyst that can react broadly. The Royal Society of Chemistry’s 2011 account identifies the reagent as a diazo derivative of styrene and reports that unwanted catalytic units are quickly destroyed by reaction with water. That design helps explain the approach, but does not by itself establish that every off-target reaction is eliminated. The RSC account summarizes the design and reported results.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What did the studies demonstrate?
The related papers mark successive demonstrations, not interchangeable claims about one experiment.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
| Study | Emphasis | Reported result |
|---|---|---|
| 2010, Popp and Ball, Journal of the American Chemical Society | Aromatic side chains and coil structures | Reported the first selective chemical modification of phenylalanine and a rate enhancement greater than 103 relative to nonselective dirhodium modification. |
| 2011, Popp and Ball, Chemical Science | Broader side-chain scope and protein-domain targeting | Reported effective modification across a wide range of amino-acid types, including the first examples of carboxamide modification of glutamine and asparagine; demonstrated modification of the c-Fos bZip domain at different residues depending on metallopeptide structure. |
| 2011, Chen, Popp, Bovet, and Ball, ACS Chemical Biology | Biologically relevant reaction settings and tagging | Reported extension to physiological pH and biologically relevant buffers, specific modification in E. coli lysate, and affinity tagging with a biotin-diazo conjugate. |
The earlier study’s rate enhancement is a result attributed to that 2010 paper, not a general performance guarantee for all proteins or conditions. The JACS study was published online on 26 April 2010 and appeared in the 19 May issue. The ACS Chemical Biology follow-up was published online on 27 June 2011 and appeared in the 16 September issue.
The 2011 RSC news account characterized the reported amino-acid scope as “over half” of naturally occurring amino-acid types. That is the account’s summary of the study’s side-chain scope, not a measure of how many proteins can be modified selectively. The primary Chemical Science paper was first published on 21 January 2011, in volume 2, pages 690–695, DOI 10.1039/C0SC00564A.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Why is proximity useful—and what are its limits?
Proteins often contain multiple copies of chemically similar, reactive side chains. A reagent that recognizes only a particular side-chain type may therefore have difficulty distinguishing one copy from another. The coiled-coil assembly offers another way to bias the reaction: use peptide recognition to position the catalyst near a selected part of the protein, then let the local environment favor modification there.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteThe demonstrated selectivity depends on the designed recognition interaction and the chosen metallopeptide structure. It should not be read as proof that any target protein can be addressed simply by adding catalyst and reagent. The cited work establishes particular substrates, reaction conditions, and modifications; it does not establish universal performance, routine adoption, or an off-the-shelf commercial method.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Does this mean proteins can now be edited for medical treatment?
No clinical outcome or human treatment is demonstrated in these studies. The work points toward research tools for investigating protein interactions. In the 2011 RSC account, corresponding author Zachary T. Ball said the work could help investigate transient interactions, including those along signaling pathways associated with human disease. That is an anticipated research application, not a reported therapeutic result.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
