Phospholipase A2

Phospholipase A2 (PLA2) is an enzyme which releases fatty acids from glycerol. It is found in mammals and in snake venoms. PLA2 releases arachidonic acid from membranes causing inflammation and pain. PLA2 from the snake Bothrops jararacussu is called bothropstoxin (BTX) and from Bothrops pirajai – piratoxin (PTX). The viperotoxin (VTX) is a heterodimer of very homologous PLA2 called RV-4/RV-7. The intracellular PLA2 – cystolic PLA2 (cPLA2) – are larger than the secreted PLA2 and contains the targeting C2 domain. The pro-phosphlipase (PPLA2) is a pancreatic PLA2 whose 7-mer N-terminal peptide is being cleaved off to produce the active PLA2. The PLA2 contains many isozymes which are ordered by groups and named accordingly, ie., group I is PLA2G1. The images at the left and at the right correspond to one representative PLA2, i.e. the crystal structure of Phospholipase A2 from Naja naja sagittifera (1yxh). For details on Lys49 snake-venom PLA2 see Anum-II. For PLA2 complex see Diclofenac binding to Phospholipase A2. Crystal structure of porcine pancreatic phospholipase A2 in complex with 2-methoxycyclohexa-2-5-diene-1,4-dione possesses anti-inflammatory activity. The binding of curcumin with PLA2 was studied using X-ray crystallography. Since the electron density found in the active site did not match with curcumin, (the photo-degraded product of curcumin) in the unexplained electron density. To understand the , molecular docking studies was carried out. with respect to the ligand position and identified that of PLA2 with a binding energy -16.81 Kcal/mol. The binding mode is in such a manner that it can prevent the entry of substrate to the hydrophobic active site. These studies indicate that curcumin can be act as an inhibitor to PLA2.

spinqualitylabelsall models Phospholipase A2 complex with ethanol, phosphate and Ca+2 ion (green) (PDB code 1yxh) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

3D Structures of Phospholipase A23D Structures of Phospholipase A2

Updated on 03-December-2014 {{#tree:id=OrganizedByTopic|openlevels=0|

• Phospholipase A2

• • 1une, 1mkt, 1irb, 1bp2, 1bpq, 1g4i, 2bp2, 2bpp - bPLA2 – bovine
    
  • 2zp3, 2zp4, 2zp5, 1c74, 1kvw, 1kvx, 1kvy, 1ceh, 1mks, 1mku, 1vkq, 1vl9, 2bax, 2bch, 2bd1, 1o3w, 1gh4 – bPLA2 (mutant) – bovine
    
  • 1bvm – bPLA2 - NMR
    
  • 1qll, 2q2j – PLA2 – Bothrops pirajai
    
  • 2qog – PLA2 – Crotalus durissus
    
  • 2ph4 – PLA2 – Zhaoermia mangshanensis
    
  • 2h4c, 1q6v – IvPLA2 – Indian viper
    
  • 1vpi – PLA2 – sand viper
    
  • 2osn, 1fe5, 1dpy – kPLA2 – krait
    
  • 1g0z, 1g2x – kPLA2 (mutant)
    
  • 2wg7, 2wg8 – rPLA2 – rice
    
  • 1p2p, 4p2p – pPLA2 - pig
    
  • 1y6p, 2phi, 3p2p – pPLA2 (mutant) – pig
    
  • 1sfv, 1sfw, 1pir, 1pis – pPLA2 - NMR
    
  • 1yxh – NsPLA2 – Naja sagittifera
    
  • 1oz6, 2qhe – PLA2 – Echis carinatus
    
  • 1it4, 1it5 – PLA2 – Stretomyces violaceoruber – NMR
    
  • 1mg6 – PLA2 – Agkistrodon acutus
    
  • 1s8g, 1s8h, 1s8i – PLA2 – copperhead
    
  • 1ijl – PLA2 – Deinagkistrodon acutus
    
  • 1mc2, 4hg9 – PLA2 – Chinese moccasin
    
  • 1c74, 1kvw, 1kvx, 1kvy, 1ceh – bPLA2 (mutant) – bovine
    
  • 1b4w, 1jia, 1c1j – AhPLA2 - Agkistrodon halys
    
  • 1a2a, 1m8r, 1m8s, 1psj – PLA2 – Gloydius halys
    
  • 1a3d, 1a3f, 1ln8, 1mh2, 1mh8, 1ows, 1poa, 1psh, 1s6b, 1sz8, 1xxw, 1y75, 1yxl, 1yxh – PLA2 – Naja naja
    
  • 1mh7 - PLA2 – Naja sagittifera
    
  • 2osh – PLA2 – Chinese cobra
    
  • 1ae7, 2not, 4e4c – PLA2 – Notechis scutatus
    
  • 1aok, 1jlt, 1q5t, 1rgb, 3dih, 3g8g, 3g8h – PLA2 – Vipera ammodytes
    
  • 2i0u – PLA2 – Vipera nikolskii
    
  • 1ayp, 1bbc, 1pod – hPLA2 – human
    
  • 1rlw – hPLA2 CALB domain
    
  • 1faz, 1kp4 – PLA2 – Streptomyces violaceruber
    
  • 1god – PLA2 – Cerrophidion godmani
    
  • 1gp7, 1m8t – PLA2 – Ophiophagus hanna
    
  • 1ozy, 1p7o, 1pwo – PLA2 – Micropechis ikahena
    
  • 1pp2 – PLA2 – rattlesnake
    
  • 1ppa, 1vap – PLA2 – cottonmouth
    
  • 1u4j – PLA2 – Bungarus caeruleus
    
  • 2aoz – PLA2 – Atropoides nummifer
    
  • 3v9m – PLA2 – king brown snake
    

• Phospholipase A2 group I

• • 3elo – hPLA2G1B
    
  • 3q4y - PLA2G1 - Andaman cobra
    
  • 3fvi, 3fvj – pPLA2G1B+octyl sulfate
    
  • 3qlm - pPLA2G1B + hexadecanoic acid
    
  • 3l30, 3l69, 3tt5, 4dbk - pPLA2G1B+berberine derivative
    
  • 4g5i – pPLA2 + DBP
    
  • 4o1y – pPLA2 + naphthalene acetic acid
    
  • 3osh – NnPLA2G1+atropine

• Phospholipase A2 group II

• • 1j1a, 3u8b – hPLA2G2A
    
  • 1n28, 1n29 – hPLA2G2A (mutant)
    
  • 1cl5, 1fb2, 1vip, 2pvt, 2pyc – DrPLA2 – Daboia russellii
    
  • 2qhw – DrPLA2 + gramine derivative
    
  • 2que – DrPLA2 + ajamaline + anisic acid
    
  • 1kqu, 1kvo – hPLA2G2A+substrate analog
    
  • 3u8d, 3u8h, 3u8i, 4hmb - hPLA2G2A + inhibitor
    
  • 3g8f – DrPLA2G2+polypeptide
    
  • 3mlm – PLA2G2 + myristic acid – Neuwiedi lancehead
    
  • 4fga, 4gfy, 4gld – DrPLA2 + polypeptide

• Phospholipase A2 group V

• • 4h0q – PLA2 – chinese green tree viper

• Human phospholipase A2 group X

• • 1le6, 1le7 – hPLA2G10

• Human phospholipase A2 group XVI

• • 2kyt, 4dot, 4fa0 – hPLA2G16 N-terminal
    

• Phospholipase A2 group XIII

• • 4aup – PLA13 – whitish truffle

• Phospholipase A2 +inhibitor

• • 3o4m, 3hsw – PLA2+inhibitor
    
  • 2azy, 2azz, 2b00, 2b01, 2b03, 2b04 – pPLA2+cholate derivative
    
  • 1y6o, 1fx9, 1fxf – pPLA2+MJ33
    
  • 1l8s – pPLA2+LPC-ether
    
  • 5p2p – pPLA2+substrate analog
    
  • 3nju – PLA2 group I+4-methoxy-benzoic acid – Andaman cobra
    
  • 2wq5 – PLA2+minocyclin – Indian cobra
    
  • 1oxl – IcPLA2+indole
    
  • 3h1x, 3fo7 – IvPLA2+indomethacin
    
  • 3fg5 – IvPLA2+pentapeptide+ajmaline
    
  • 3cbi – IvPLA2+anisic acid+ajmaline
    
  • 2qu9 – IvPLA2+eugenol
    
  • 2otf – IvPLA2+atenolol
    
  • 1zwp - IvPLA2+nimesulide
    
  • 1th6 - IvPLA2+atropine
    
  • 1td7 - IvPLA2+niflumic acid
    
  • 1tgm - IvPLA2+aspirin
    
  • 2wg9 – rPLA2+octanoic acid
    
  • 1oxr – NsPLA2+aspirin
    
  • 1bk9 – AhPLA2+PBPB
    
  • 1fdk – bPLA2+MJ33
    
  • 1mkv – bPLA2+transition state analog
    
  • 1o2e – bPLA2 (mutant)+anisic acid
    
  • 2b96 - bPLA2+benzoic acid derivative
    
  • 3bp2 – bPLA2+pyruvic acid
    
  • 1pob - NnPLA2+transition state analog
    
  • 1poc - PLA2+transition state analog – Honey bee
    
  • 1db4, 1db5, 1dcy – hPLA2+indole
    
  • 1poe – hPLA2+phosphonyl inhibitor
    
  • 1fv0 – DrPLA2+aristolochic acid
    
  • 1sv3 - DrPLA2+benzoic acid derivative
    
  • 1tp2, 2pws, 2q1p – DrPLA2+fatty acid
    
  • 1sv9, 1sxk, 1zyx, 2b17, 2qvd – DrPLA2+anti-inflammatory agent
    
  • 1kpm – DrPLA2+vitamin E
    
  • 1oyf – DrPLA2+venom-6 methyl-heptanol
    
  • 1q7a – DrPLA2+oxyphenabutazone
    
  • 1y38 – DrPLA2+glycerophosphate
    
  • 1zr8 – DrPLA2+ajmaline
    
  • 2arm – DrPLA2+atropine
    
  • 2dpz – DrPLA2 +hydroxyphenyl acetamide
    
  • 2oli, 2oth, 2oyf – DrPLA2+indole derivative
    
  • 2oub – DrPLA2+atenolol
    
  • 2pmj – DrPLA2+benzopyrone
    
  • 2zbh – DrPLA2+bavachalcone
    
  • 4eix - DrPLA2+indomethacin + nimesulide
    
  • 1po8, 1tc8 – kPLA2+fatty acid
    
  • 1xxs – PLA2+fatty acid – Bothrops moojeni
    
  • 2qhd – EcPLA2+fatty acid
    
  • 3bjw – EcPLA2+suramin
    
  • 1y4l – PLA2+suramin – Bothrops asper

• Phospholipase A2 +polypeptide

• • 2o1n, 2d02, 2fnx, 1zm6, 1tdv, 1tg4, 1t37 - IvPLA2+polypeptide
    
  • 1jq8, 1jq9 - DsPLA2+polypeptide
    
  • 1mf4, 2rd4, 3gci, 3jq5, 3jql, 3jti - NnPLA2+polypeptide
    
  • 1skg, 1sqz, 1tg1, 1tj9, 1tjk, 1tk4, 2do2, 2g58, 2gns, 2pb8 - DrPLA2+polypeptide

• Bothrops toxins

• • 3i3h, 3i3i, 3hzd, 2oqd, 1zlb, 1umv, 1u73, 1zl7 – BTX
    
  • 3jr8 – BTXD+Ca
    
  • 3hzw, [[3i03 – BTX+BPB
    
  • 3iq3, 2h8i – BTX + PEG
    
  • 1z76 – BTX+bromophenacyl
    
  • 1gmz, 1qll, 2q2j, 2ok9 - PTX
    
  • 3cyl – PTX+a-tocopherol

• Viperotoxin

• • 1oqs – DrRV4/RV7

• cPhospholipase A2

• • 1cjy - h-cPLA2
    
  • 1bci – h-cPLA2 C2 domain

• Pro-Phospholipase A2

• • 1hn4 – pPPLA2+MJ33
    
  • 4bp2 – bPPLA2

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