Metrics Describing Progress of the Protein Structure Initiative

Updated December 01, 2011

I. Progress of the PSI II. Number of Experimental Structures and Residues III. Impact and Classification of Structures IV. Novel Modeling Leverage V. Biological Theme Targets & Structures VI. PSI PFAM Domain Family Covarage

Glossary of Terms

  • BIG: BioInformatics Group. A team of bioinformaticians from PSI-2 large-scale production centers that coordinate efforts of target selection and progress evaluation
  • ALL-PSI: All PSI centers (PSI-1, PSI-2, PSI-3)
  • ALL PDB: Entire Protein Data Bank
  • PSI-1: The pilot phase of the protein structure initiative (PSI) ran from 09-01-2000 to 06-30-2005
  • PSI-2: The production phase of the protein structure initiative (PSI) (07-01-2005 - ongoing). Statistics on this page reflect PSI-2 data deposited after 07-01-2005 and released before 12-01-2011
  • PSI-3: The PSI:Biology program of the protein structure initiative (PSI) (07-01-2010 - ongoing). Statistics on this page reflect PSI-3 data deposited after 07-01-2010 and released before 12-01-2011
  • LSC: are the four Protein Structure Initiative (PSI) large-scale production centers; namely MCSG, JCSG, NESG, and NYSGXRC/NYSGRC
  • Total Structures: Total number of structures in the PDB at the time of deposition. This includes multiple structures of the same protein sequence determined by different methods (i.e., NMR versus X-ray crystallography), in different crystal forms, different solution conditions, or bound to different ligands.
  • Distinct Structures: Total number of structures with non-redundant sequences less then 98% sequence identity
  • Distinct Residues: Total number of residues in structures with non-redundant sequences less 98% sequence identity
  • Novel Structures: Total number of novel structures with less than 30% sequence identity to an existing structure at the time of PDB deposition
  • Novel Residues: Total number of residues in structures with less than 30% sequence identity to an existing structure at the time of PDB deposition
  • X-Ray Structures: Total number of structures determined using X-Ray crystallography
  • NMR Structures: Total number of structures determined using NMR methods
  • Membrane Proteins: Total number of structures of membrane proteins
  • Eukaryotic Proteins: Total number of structures from eukaryotic organisms
  • Prokaryotic Proteins: Total number of structures from prokaryotic organisms
  • Human Proteins: Total number of structures of human proteins
  • Other Proteins: Total number of structures of viral and unknown source proteins

I. Progress of the PSI

PDB deposition statistics

PSI grant period LSC ALL-PSI
PSI-2 grant year 2005 390 427
PSI-2 grant year 2006 620 700
PSI-2 grant year 2007 682 718
PSI-2 grant year 2008 796 818
PSI-2 grant year 2009 822 879
PSI-2 grant extension 217 244
PSI-2 total depositions 3527 3786
PSI-3 grant year 2010 280 283
PSI-3 total depositions 377 381
PSI-1 + PSI-2 + PSI-3 4804 5583

PSI-2 grant year 2005:
PSI-2 structures deposited between July 1, 2005 and July 1, 2006
PSI-2 grant year 2006:
PSI-2 structures deposited between July 1, 2006 and July 1, 2007
PSI-2 grant year 2007:
PSI-2 structures deposited between July 1, 2007 and July 1, 2008
PSI-2 grant year 2008:
PSI-2 structures deposited between July 1, 2008 and July 1, 2009
PSI-2 grant year 2009:
PSI-2 structures deposited between July 1, 2009 and July 1, 2010
PSI-2 grant extension:
PSI-2 structures deposited between July 1, 2010 and December 01, 2011
PSI-2 total depositions:
PSI-2 structures deposited between July 1, 2005 and December 01, 2011
PSI-3 grant year 2010:
PSI-3 structures deposited between July 1, 2010 and July 1, 2011
PSI-3 total depositions:
PSI-3 structures deposited between July 1, 2010 and December 01, 2011
PSI-1 + PSI-2 + PSI-3:
All PSI structures released before December 01, 2011

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Numbers of experimental structures from PSI

Start of PSI Deposition:
Sep 2000: Structures deposited before PSI grant initiation (2000-09-01)

Each subsequent bar shows the total number of PSI structures deposited as of the First of each indicated date.

For example, there were 96 PSI-derived structures deposited as of September 1, 2001.

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II. Number of Experimental Structures and Residues

Structures determined in PSI-1

Center Total Structures Distinct Structures Distinct Residues Novel Structures Novel Residues
LSC 898 792 180109 453 99731
ALL-PSI-1 1416 1157 265929 622 137025
ALL PDB 19865 7111 1704005 2735 645949

Calculations in this table are based on PDB data deposited before July 1, 2005.

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Structures determined in PSI-2

Center Total Structures Distinct Structures Distinct Residues Novel Structures Novel Residues
LSC 3527 3166 719603 1957 441959
ALL-PSI-2 3786 3271 744587 2018 456021
ALL PDB 43100 15604 3975602 5922 1435827

Calculations in this table are based on PDB data deposited after July 1, 2005 and released before December 01, 2011.

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III. Impact and Classification of PSI-2 Structures

Calculations in this section are based on PDB data deposited after July 1, 2005 and released before December 01, 2011.

Classification of PSI-2 structures

Center Total Structures X-ray NMR Membrane Proteins Eukaryotes Human Other Prokaryotes
LSC 3527 3159 368 24 185 100 46 3274
ALL-PSI-2 3786 3380 406 81 345 147 58 3360

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Classification of PSI-2 structures by organism

Eukaryotes Total345
Prokaryotes Total3360
Other Organisms Total58

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Detailed PSI-2 structure counts for eukaryotes

Eukaryotes Total345
Aequorea victoria1
Anopheles gambiae2
Antirrhinum majus1
Arabidopsis thaliana59
Ashbya gossypii2
Aspergillus fumigatus1
Aspergillus oryzae2
Babesia bovis1
Bos taurus3
Brugia malayi1
Caenorhabditis elegans11
Candida albicans1
Candida glabrata1
Coccidioides immitis1
Cyanidioschyzon merolae1
Danio rerio7
Drosophila melanogaster3
Encephalitozoon cuniculi4
Engyodontium album1
Galdieria sulphuraria7
Gibberella zeae2
Homo sapiens147
Mus musculus35
Oncorhynchus mykiss1
Oryza sativa1
Pentadiplandra brazzeana1
Pichia guilliermondii1
Rana pipiens2
Rattus norvegicus5
Saccharomyces cerevisiae30
Schizosaccharomyces pombe2
Solanum lycopersicum1
Spinacia oleracea1
Sus scrofa1
Toxoplasma gondii3
Trypanosoma brucei1
Xenopus laevis1

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Detailed PSI-2 structure counts for prokaryotes

Prokaryotes Total 3360
Genus: Acidithiobacillus5
Acidithiobacillus ferrooxidans5
Genus: Acidothermus1
Acidothermus cellulolyticus1
Genus: Acinetobacter9
Acinetobacter baumannii1
Acinetobacter calcoaceticus1
Acinetobacter sp.7
Genus: Actinobacillus3
Actinobacillus succinogenes3
Genus: Aeromonas4
Aeromonas hydrophila1
Aeromonas salmonicida3
Genus: Aeropyrum5
Aeropyrum pernix5
Genus: Agrobacterium96
Agrobacterium tumefaciens95
Agrobacterium vitis1
Genus: Alcanivorax2
Alcanivorax borkumensis2
Genus: Alicyclobacillus1
Alicyclobacillus acidocaldarius1
Genus: Alkaliphilus2
Alkaliphilus metalliredigens2
Genus: Allochromatium1
Allochromatium vinosum1
Genus: Alteromonas1
Alteromonas macleodii1
Genus: Anabaena23
Anabaena sp.1
Anabaena variabilis22
Genus: Aquifex9
Aquifex aeolicus9
Genus: Archaeoglobus59
Archaeoglobus fulgidus59
Genus: Arthrobacter11
Arthrobacter aurescens5
Arthrobacter sp.6
Genus: Azoarcus1
Azoarcus sp.1
Genus: Azorhizobium1
Azorhizobium caulinodans1
Genus: Azotobacter2
Azotobacter vinelandii2
Genus: Bacillus266
Bacillus anthracis15
Bacillus cereus53
Bacillus clausii2
Bacillus cytotoxicus1
Bacillus halodurans55
Bacillus licheniformis2
Bacillus subtilis127
Bacillus thuringiensis11
Genus: Bacteroides205
Bacteroides caccae1
Bacteroides fragilis56
Bacteroides ovatus9
Bacteroides thetaiotaomicron107
Bacteroides uniformis1
Bacteroides vulgatus31
Genus: Bartonella7
Bartonella henselae7
Genus: Bdellovibrio2
Bdellovibrio bacteriovorus2
Genus: Bermanella1
Bermanella marisrubri1
Genus: Bifidobacterium12
Bifidobacterium adolescentis7
Bifidobacterium longum5
Genus: Blastochloris1
Blastochloris viridis1
Genus: Bordetella47
Bordetella bronchiseptica20
Bordetella parapertussis16
Bordetella pertussis11
Genus: Borrelia1
Borrelia burgdorferi1
Genus: Bradyrhizobium3
Bradyrhizobium japonicum3
Genus: Burkholderia37
Burkholderia mallei4
Burkholderia phymatum1
Burkholderia phytofirmans2
Burkholderia pseudomallei4
Burkholderia sp.1
Burkholderia thailandensis7
Burkholderia xenovorans18
Genus: Caldicellulosiruptor1
Caldicellulosiruptor saccharolyticus1
Genus: Campylobacter11
Campylobacter jejuni11
Genus: Carboxydothermus2
Carboxydothermus hydrogenoformans2
Genus: Caulobacter13
Caulobacter crescentus7
Caulobacter vibrioides6
Genus: Chlamydia1
Chlamydia trachomatis1
Genus: Chlamydophila1
Chlamydophila abortus1
Genus: Chlorobaculum13
Chlorobaculum tepidum13
Genus: Chlorobium10
Chlorobium tepidum10
Genus: Chloroflexus5
Chloroflexus aggregans1
Chloroflexus aurantiacus4
Genus: Chromobacterium23
Chromobacterium violaceum23
Genus: Chromohalobacter4
Chromohalobacter salexigens4
Genus: Clostridium84
Clostridium acetobutylicum31
Clostridium beijerinckii1
Clostridium difficile19
Clostridium leptum3
Clostridium novyi3
Clostridium perfringens12
Clostridium phytofermentans3
Clostridium symbiosum3
Clostridium tetani1
Clostridium thermocellum8
Genus: Colwellia10
Colwellia psychrerythraea10
Genus: Corynebacterium64
Corynebacterium diphtheriae24
Corynebacterium glutamicum40
Genus: Coxiella1
Coxiella burnetii1
Genus: Cupriavidus2
Cupriavidus metallidurans1
Cupriavidus necator1
Genus: Cytophaga25
Cytophaga hutchinsonii25
Genus: Deinococcus22
Deinococcus geothermalis3
Deinococcus radiodurans19
Genus: Desulfitobacterium20
Desulfitobacterium hafniense20
Genus: Desulfotalea2
Desulfotalea psychrophila2
Genus: Desulfovibrio21
Desulfovibrio desulfuricans9
Desulfovibrio vulgaris12
Genus: Desulfuromonas1
Desulfuromonas acetoxidans1
Genus: Dyadobacter1
Dyadobacter fermentans1
Genus: Enterococcus65
Enterococcus faecalis62
Enterococcus faecium3
Genus: Erwinia2
Erwinia carotovora2
Genus: Escherichia120
Escherichia coli120
Genus: Eubacterium13
Eubacterium eligens3
Eubacterium rectale6
Eubacterium ventriosum4
Genus: Exiguobacterium17
Exiguobacterium sibiricum17
Genus: Fervidobacterium1
Fervidobacterium nodosum1
Genus: Frankia1
Frankia sp.1
Genus: Fulvimarina1
Fulvimarina pelagi1
Genus: Fusobacterium4
Fusobacterium nucleatum4
Genus: Geobacillus17
Geobacillus kaustophilus2
Geobacillus sp.3
Geobacillus stearothermophilus10
Geobacillus thermodenitrificans2
Genus: Geobacter28
Geobacter metallireducens11
Geobacter sulfurreducens17
Genus: Gloeobacter1
Gloeobacter violaceus1
Genus: Haemophilus39
Haemophilus ducreyi3
Haemophilus influenzae28
Haemophilus somnus8
Genus: Hahella2
Hahella chejuensis2
Genus: Haloarcula7
Haloarcula marismortui7
Genus: Halobacterium1
Halobacterium sp.1
Genus: Halorhodospira1
Halorhodospira halophila1
Genus: Helicobacter20
Helicobacter pylori20
Genus: Herpetosiphon1
Herpetosiphon aurantiacus1
Genus: Idiomarina3
Idiomarina baltica1
Idiomarina loihiensis2
Genus: Jannaschia14
Jannaschia sp.13
Genus: Jonesia1
Jonesia denitrificans1
Genus: Klebsiella27
Klebsiella pneumoniae26
Klebsiella variicola1
Genus: Kosmotoga1
Kosmotoga olearia1
Genus: Lactobacillus70
Lactobacillus acidophilus11
Lactobacillus brevis10
Lactobacillus casei5
Lactobacillus delbrueckii4
Lactobacillus plantarum36
Lactobacillus reuteri1
Lactobacillus salivarius3
Genus: Lactococcus6
Lactococcus lactis6
Genus: Leeuwenhoekiella1
Leeuwenhoekiella blandensis1
Genus: Legionella25
Legionella pneumophila25
Genus: Leptospirillum5
Leptospirillum rubarum5
Genus: Listeria71
Listeria innocua36
Listeria monocytogenes35
Genus: Magnetospirillum5
Magnetospirillum magneticum1
Magnetospirillum magnetotacticum4
Genus: Mannheimia1
Mannheimia succiniciproducens1
Genus: Marine2
Marine actinobacterium2
Genus: Marinobacter8
Marinobacter aquaeolei8
Genus: Mesorhizobium20
Mesorhizobium loti18
Mesorhizobium sp.2
Genus: Methanocaldococcus28
Methanocaldococcus jannaschii28
Genus: Methanococcus12
Methanococcus jannaschii2
Methanococcus maripaludis10
Genus: Methanocorpusculum1
Methanocorpusculum labreanum1
Genus: Methanoculleus2
Methanoculleus marisnigri2
Genus: Methanopyrus3
Methanopyrus kandleri3
Genus: Methanosarcina22
Methanosarcina acetivorans2
Methanosarcina mazei20
Genus: Methanospirillum2
Methanospirillum hungatei2
Genus: Methanothermobacter18
Methanothermobacter marburgensis2
Methanothermobacter thermautotrophicus16
Genus: Methylibium2
Methylibium petroleiphilum2
Genus: Methylobacillus12
Methylobacillus flagellatus12
Genus: Methylococcus5
Methylococcus capsulatus5
Genus: Micromonospora7
Micromonospora echinospora7
Genus: Moorella1
Moorella thermoacetica1
Genus: Mycobacterium22
Mycobacterium bovis4
Mycobacterium smegmatis3
Mycobacterium tuberculosis14
Mycobacterium vanbaalenii1
Genus: Mycoplasma2
Mycoplasma synoviae2
Genus: Myxococcus2
Myxococcus xanthus2
Genus: Neisseria36
Neisseria gonorrhoeae9
Neisseria meningitidis27
Genus: Neptuniibacter1
Neptuniibacter caesariensis1
Genus: Nitrosomonas28
Nitrosomonas europaea28
Genus: Nitrosospira5
Nitrosospira multiformis5
Genus: Nocardia1
Nocardia farcinica1
Genus: Nostoc36
Nostoc punctiforme20
Nostoc sp.16
Genus: Novosphingobium23
Novosphingobium aromaticivorans23
Genus: Oceanicola1
Oceanicola granulosus1
Genus: Oceanobacillus6
Oceanobacillus iheyensis6
Genus: Oenococcus7
Oenococcus oeni7
Genus: Oleispira8
Oleispira antarctica8
Genus: Parabacteroides23
Parabacteroides distasonis23
Genus: Paracoccus2
Paracoccus denitrificans2
Genus: Pectobacterium18
Pectobacterium atrosepticum17
Pectobacterium carotovorum1
Genus: Pediococcus5
Pediococcus pentosaceus5
Genus: Pelobacter1
Pelobacter carbinolicus1
Genus: Picrophilus1
Picrophilus torridus1
Genus: Polaromonas4
Polaromonas sp.4
Genus: Porphyromonas38
Porphyromonas gingivalis38
Genus: Prevotella1
Prevotella bryantii1
Genus: Prochlorococcus6
Prochlorococcus marinus6
Genus: Proteus1
Proteus mirabilis1
Genus: Pseudoalteromonas2
Pseudoalteromonas atlantica2
Genus: Pseudomonas163
Pseudomonas aeruginosa86
Pseudomonas fluorescens20
Pseudomonas mendocina1
Pseudomonas putida18
Pseudomonas sp.1
Pseudomonas syringae37
Genus: Pseudovibrio2
Pseudovibrio sp.2
Genus: Psychrobacter6
Psychrobacter arcticus6
Genus: Pyrococcus30
Pyrococcus furiosus15
Pyrococcus horikoshii15
Genus: Ralstonia32
Ralstonia eutropha26
Ralstonia pickettii1
Ralstonia solanacearum5
Genus: Rhizobium4
Rhizobium etli2
Rhizobium leguminosarum2
Genus: Rhodobacter24
Rhodobacter capsulatus3
Rhodobacter sphaeroides21
Genus: Rhodococcus34
Rhodococcus jostii5
Rhodococcus sp.28
Genus: Rhodopirellula2
Rhodopirellula baltica2
Genus: Rhodopseudomonas45
Rhodopseudomonas palustris45
Genus: Rhodospirillum14
Rhodospirillum rubrum14
Genus: Roseovarius7
Roseovarius nubinhibens6
Roseovarius sp.1
Genus: Rubrobacter2
Rubrobacter xylanophilus2
Genus: Ruegeria14
Ruegeria pomeroyi11
Ruegeria sp.3
Genus: Ruminococcus12
Ruminococcus gnavus3
Ruminococcus obeum9
Genus: Salinibacter4
Salinibacter ruber4
Genus: Salmonella45
Salmonella enterica10
Salmonella paratyphi1
Salmonella typhimurium34
Genus: Shewanella94
Shewanella amazonensis10
Shewanella baltica8
Shewanella denitrificans7
Shewanella frigidimarina8
Shewanella loihica9
Shewanella oneidensis46
Shewanella pealeana1
Shewanella putrefaciens4
Shewanella sp.1
Genus: Shigella31
Shigella flexneri31
Genus: Silicibacter41
Silicibacter pomeroyi33
Silicibacter sp.8
Genus: Sinorhizobium11
Sinorhizobium medicae1
Sinorhizobium meliloti10
Genus: Sphingomonas1
Sphingomonas paucimobilis1
Genus: Spirosoma1
Spirosoma linguale1
Genus: Staphylococcus64
Staphylococcus aureus37
Staphylococcus epidermidis14
Staphylococcus haemolyticus4
Staphylococcus saprophyticus9
Genus: Streptococcus110
Streptococcus agalactiae15
Streptococcus mutans19
Streptococcus pneumoniae47
Streptococcus pyogenes16
Streptococcus suis3
Streptococcus thermophilus10
Genus: Streptomyces57
Streptomyces avermitilis19
Streptomyces coelicolor38
Genus: Sulfolobus27
Sulfolobus solfataricus27
Genus: Sulfurospirillum1
Sulfurospirillum deleyianum1
Genus: Synechococcus9
Synechococcus elongatus7
Synechococcus sp.2
Genus: Synechocystis13
Synechocystis sp.12
Genus: Syntrophomonas3
Syntrophomonas wolfei3
Genus: Syntrophus4
Syntrophus aciditrophicus4
Genus: Thermobifida10
Thermobifida fusca10
Genus: Thermococcus1
Thermococcus kodakarensis1
Genus: Thermoplasma38
Thermoplasma acidophilum30
Thermoplasma volcanium8
Genus: Thermosynechococcus2
Thermosynechococcus elongatus2
Genus: Thermotoga90
Thermotoga maritima89
Thermotoga sp.1
Genus: Thermus4
Thermus thermophilus4
Genus: Thiobacillus4
Thiobacillus denitrificans4
Genus: Treponema1
Treponema denticola1
Genus: Uncultured6
Uncultured bacterium5
Uncultured thermotogales1
Genus: Ureaplasma3
Ureaplasma parvum3
Genus: Vibrio101
Vibrio cholerae38
Vibrio fischeri10
Vibrio paracholerae1
Vibrio parahaemolyticus51
Vibrio splendidus1
Genus: Vibrionales1
Vibrionales bacterium1
Genus: Wolinella7
Wolinella succinogenes7
Genus: Xanthomonas18
Xanthomonas campestris18
Genus: Xylella7
Xylella fastidiosa7
Genus: Yersinia8
Yersinia enterocolitica2
Yersinia pestis1
Yersinia pseudotuberculosis5
Genus: Zymomonas1
Zymomonas mobilis1

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Detailed PSI-2 structure counts for other organisms

Other Organisms Total58
Rattus norvegicus, saccharomyces cerevisiae1
Artificial gene4
Uncultured marine organism6
Bacteriophage p11
Homo sapiens, bacteriophage t41
Homo sapiens, enterobacteria phage t49
Homo sapiens, enterobacteria phage t4, homo sapiens1
Influenza a virus2
Mengo virus1
Moloney murine leukemia virus1
Murid herpesvirus 42
Pseudomonas phage luz71
Pseudomonas phage phi121
Pseudomonas phage yua1
Sars coronavirus13
Staphylococcus phage1
Vaccinia virus wr1

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IV. Novel Modeling Leverage

Calculations in this section updated October 5, 2011

Modeling leverage caculations are provided by Dr.Lukasz Jaroszewski affiliated with JCSG

Leverage provided by PSI-2 structures

Center Total Leverage Residue Leverage Novel Leverage Residue Leverage
LSC 1233729 304119628 250016 64765245
PSI-2 1462817 352173350 266758 69997509
PDB excluding PSI-2 3828929 1115315109 635537 241783799

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V. Biological Theme Targets & Structures

Calculations in this section updated December 01, 2011

Biological Theme Targets by PSI Center

Center Biomedical Targets Metagenomics Targets Community Nominated Targets
ATCG3D 7 0 0
CESG 983 0 442
CHTSB 129 0 0
GPCR 0 0 3
ISFI 0 0 428
JCSG 21843 2436 2078
MCSG 4318 1500 1945
MPP 232 0 284
NESG 8561 1847 811
NYCOMPS 0 0 532
NYSGRC 9593 0 302
NYSGXRC 1335 485 1489
TMPC 48 0 49
Total 54744 6268 11410

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Biomedical Targets & Structures by PSI Center

Center Total Targets Cloned Targets Expressed Targets Purified Targets Crystallyzed Targets NMR Targets Targets In PDB Structures In PDB
ATCG3D 7 7 7 7 6 0 6 8
CESG 983 770 689 173 32 3 10 8
CHTSB 129 124 29 10 0 0 5 21
JCSG 21843 21108 12469 12467 1857 0 738 798
MCSG 4318 3515 2595 1265 287 0 276 304
MPP 232 51 47 5 0 0 0 0
NESG 8561 2578 2418 736 50 89 129 141
NYSGRC 9593 2089 1794 481 51 0 41 43
NYSGXRC 1335 1010 911 462 107 0 69 77
TMPC 48 32 26 10 0 0 0 0
Total 54744 35893 24306 16833 2390 92 1274 1711

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Metagenomic Targets & Structures by PSI Center

Center Total Targets Cloned Targets Expressed Targets Purified Targets Crystallyzed Targets NMR Targets Targets In PDB Structures In PDB
JCSG 2436 2348 1625 1625 387 0 113 116
MCSG 1500 1430 860 323 70 0 64 71
NESG 1847 1127 1123 409 45 28 67 77
NYSGXRC 485 451 396 207 52 0 31 35
Total 6268 5356 4004 2564 554 28 275 299

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Community Nominated Targets & Structures by PSI Center

Center Total Targets Cloned Targets Expressed Targets Purified Targets Crystallyzed Targets NMR Targets Targets In PDB Structures In PDB
CESG 442 313 243 81 39 12 30 40
GPCR 3 3 0 0 0 0 0 0
ISFI 428 330 244 210 175 0 129 13
JCSG 2078 1992 1573 1573 363 0 111 113
MCSG 1945 1614 1304 581 128 0 49 50
MPP 284 180 165 28 0 0 0 0
NESG 811 564 523 292 49 38 83 97
NYCOMPS 532 362 90 43 0 0 0 0
NYSGRC 302 302 297 56 17 0 11 14
NYSGXRC 1489 1288 1066 514 174 0 128 178
TMPC 49 41 27 8 0 0 0 0
Total 11410 8555 6572 3808 945 50 541 589

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VI. PSI PFAM Domain Family Coverage

Calculations in this section updated October 5, 2011

Number of PFAM families for which PSI provided the first structure representative

Total PFAM Families Total PFAM Families in PDB PSI-1 PFAM Families PSI-2 PFAM Families
12273 5564 355 561

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