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MY'STORY

The MOVE Fire

This is a personal recollection on the Move fire on May 13, 1985 Philadelphia police fired thousands of rounds at the MOVE house, city officials approved dropping an explosive device on the roof, the resulting fire was allowed to burn, 11 people—including five children—died, and 61 homes were destroyed. Philadelphia City Council later called it a “brutal attack carried out by the City of Philadelphia on its own citizens” and acknowledged that no individual faced criminal consequences for the bombing. One timeline correction worth preserving for the BHP record: the major previous MOVE-police confrontation was August 8, 1978, about seven years before the bombing, not a year or two earlier. Officer James Ramp was killed, other police and firefighters were wounded, nine MOVE members were later convicted, and television cameras recorded police beating Delbert Africa during his arrest. The 1985 MOVE Commission later specifically criticized city planners for failing to adequately use lessons from that 1978 confrontation. And that actually strengthens the point you’re making: 1985 did not happen without precedent or institutional memory. There had already been a deadly confrontation with MOVE, years of conflict, negotiations and police involvement before Osage Avenue.

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BLACK FACTS
The Truths They Never Taught You...

Katherine Johnson — Mathematics to the Moon

Katherine Johnson’s mathematical calculations helped guide some of America’s most important early space missions while she confronted the racial and gender barriers faced by Black women in twentieth-century America.

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Wikipedia

AP5

AP5
Names
Preferred IUPAC name
(2R)-2-Amino-5-phosphonopentanoic acid
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.150.904 Edit this at Wikidata
UNII
  • InChI=1S/C5H12NO5P/c6-4(5(7)8)2-1-3-12(9,10)11/h4H,1-3,6H2,(H,7,8)(H2,9,10,11)/t4-/m1/s1 checkY
    Key: VOROEQBFPPIACJ-SCSAIBSYSA-N checkY
  • InChI=1/C5H12NO5P/c6-4(5(7)8)2-1-3-12(9,10)11/h4H,1-3,6H2,(H,7,8)(H2,9,10,11)/t4-/m1/s1
    Key: VOROEQBFPPIACJ-SCSAIBSYBE
  • O=P(O)(O)CCC[C@@H](N)C(=O)O
Properties
C5H12NO5P
Molar mass 197.13 g/mol
Appearance white solid
Density 1.529 g/mL
Boiling point 482.1 °C (899.8 °F; 755.2 K)
Ammonium hydroxide, 50 mg/mL
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
X markN verify (what is checkYX markN ?)

AP5 (also known as APV, (2R)-amino-5-phosphonovaleric acid, or (2R)-amino-5-phosphonopentanoate) is a chemical compound used as a biochemical tool to study various cellular processes. It is a selective NMDA receptor antagonist that competitively inhibits the ligand (glutamate) binding site of NMDA receptors.[1] AP5 blocks NMDA receptors in micromolar concentrations (~50 μM).

AP5 blocks the cellular analog of classical conditioning in the sea slug Aplysia californica, and has similar effects on Aplysia long-term potentiation (LTP), since NMDA receptors are required for both.[2] It is sometimes used in conjunction with the calcium chelator BAPTA to determine whether NMDARs are required for a particular cellular process. AP5/APV has also been used to study NMDAR-dependent LTP in the mammalian hippocampus.[3]

In general, AP5 is very fast-acting within in vitro preparations, and can block NMDA receptor action at a reasonably small concentration. The active isomer of AP5 is considered to be the D configuration, although many preparations are available as a racemic mixture of D- and L-isomers. It is useful to isolate the action of other glutamate receptors in the brain, i.e., AMPA and kainate receptors.

AP5 can block the conversion of a silent synapse to an active one, since this conversion is NMDA receptor-dependent.

See also

[edit]

References

[edit]
  1. ^ Morris, RG (Sep 1989). "Synaptic plasticity and learning: selective impairment of learning rats and blockade of long-term potentiation in vivo by the N-methyl-D-aspartate receptor antagonist AP5". Journal of Neuroscience. 9 (9): 3040–57. PMID 2552039.
  2. ^ Cellular Analog of Differential Classical Conditioning in Aplysia: Disruption by the NMDA Receptor Antagonist DL-2-Amino-5-Phosphonovalerate
  3. ^ Gustafsson, B.; Wigström, H.; Abraham, W.C.; Huang, Y.Y. (March 1987). "Long-Term Potentiation in the Hippocampus Using Depolarizing Current Pulses as the Conditioning Stimulus to Single Volley Synaptic Potentials". Journal of Neuroscience. 7 (3): 774–780.
[edit]

Source: Wikipedia. Article content is retrieved live through the MediaWiki API.

Wikipedia

AP5

AP5 (also known as APV, (2R)-amino-5-phosphonovaleric acid, or (2R)-amino-5-phosphonopentanoate) is a chemical compound used as a biochemical tool to study various cellular processes. It is a selective NMDA receptor antagonist that competitively inhibits the ligand (glutamate) binding site of NMDA receptors. AP5 blocks NMDA receptors in micromolar concentrations (~50 μM). AP5 blocks the cellular analog of classical conditioning in the sea slug Aplysia californica, and has similar effects on Aplysia long-term potentiation (LTP), since NMDA receptors are required for both. It is sometimes used in conjunction with the calcium chelator BAPTA to determine whether NMDARs are required for a particular cellular process. AP5/APV has also been used to study NMDAR-dependent LTP in the mammalian hippocampus. In general, AP5 is very fast-acting within in vitro preparations, and can block NMDA receptor action at a reasonably small concentration. The active isomer of AP5 is considered to be the D configuration, although many preparations are available as a racemic mixture of D- and L-isomers. It is useful to isolate the action of other glutamate receptors in the brain, i.e., AMPA and kainate receptors. AP5 can block the conversion of a silent synapse to an active one, since this conversion is NMDA receptor-dependent.

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Wikipedia

Chrysler Valiant (AP5)

The Chrysler AP5 Valiant is an automobile produced by Chrysler Australia from 1963 until 1965. It was the third Chrysler Valiant model to be produced in Australia.

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Wikipedia

USS Talladega

USS Talladega (APA/LPA-208) was a Haskell-class attack transport of the US Navy. She was of the VC2-S-AP5 Victory ship design type. Talladega was named for Talladega County, Alabama.

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Wikipedia

Haskell-class attack transport

Haskell-class attack transports (APAs) were amphibious assault ships of the United States Navy created in 1944. They were designed to transport 1,500 troops and their combat equipment and land them on hostile shores with the ships' integral landing craft. The Haskell ships were very active in the World War II Pacific Theater of Operations, landing marines and soldiers and transporting casualties at Iwo Jima and Okinawa. Ships of the class were among the first Allied ships to enter Tokyo Bay at the end of World War II, landing the first occupation troops at Yokosuka. After the end of World War II, most participated in Operation Magic Carpet, the massive sealift of US personnel back to the United States. A few of the Haskell class were reactivated for the Korean War, with some staying in service into the Vietnam War. The Haskell class, Maritime Commission standard type VC2-S-AP5, is a subtype of the World War II Victory ship design; 117 were launched in 1944 and 1945, with 14 more being finished as another VC2 type or canceled, built by the War Shipping Administration under the Emergency Shipbuilding program. The Haskell class was named for the so-named counties of Kansas, Oklahoma, and Texas.

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TOPIC OF THE DAY

Greenwood / Black Wall Street

Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.

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TRIVIA QUESTION OF THE DAY

Which Black woman became the first elected to the United States Congress?

Shirley Chisholm, elected in 1968.