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(-) Description

Title :  CRYSTAL STRUCTURE OF NATIVE HEPARIN COFACTOR II
 
Authors :  T. P. Baglin, R. W. Carrell, F. C. Church, J. A. Huntington
Date :  18 Jul 01  (Deposition) - 30 Aug 02  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.35
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Serpin, Thrombin Inhibitor, Heparin, Blood Clotting (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. P. Baglin, R. W. Carrell, F. C. Church, C. T. Esmon, J. A. Huntington
Crystal Structures Of Native And Thrombin-Complexed Heparin Cofactor Ii Reveal A Multistep Allosteric Mechanism.
Proc. Natl. Acad. Sci. Usa V. 99 11079 2002
PubMed-ID: 12169660  |  Reference-DOI: 10.1073/PNAS.162232399

(-) Compounds

Molecule 1 - HEPARIN COFACTOR II
    ChainsA, B
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymHC-II

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 5)

Asymmetric/Biological Unit (3, 5)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2CA1Ligand/IonCALCIUM ION
3NAG3Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASN A:368 , NAG A:482 , HOH A:595 , HOH A:648BINDING SITE FOR RESIDUE NAG A 481
2AC2SOFTWARENAG A:481 , BMA A:483BINDING SITE FOR RESIDUE NAG A 482
3AC3SOFTWARENAG A:482BINDING SITE FOR RESIDUE BMA A 483
4AC4SOFTWAREASN B:312 , ASN B:368BINDING SITE FOR RESIDUE NAG B 481
5AC5SOFTWAREHIS A:290 , HIS A:292 , HOH A:551 , HOH A:631BINDING SITE FOR RESIDUE CA A 501

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1JMJ)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1JMJ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (7, 13)

Asymmetric/Biological Unit (7, 13)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_051953S87NHEP2_HUMANPolymorphism34324685AS68N
2UniProtVAR_051954L129VHEP2_HUMANPolymorphism11542069A/BL110V
3UniProtVAR_007112R208HHEP2_HUMANDisease (THPH10)5907A/BR189H
4UniProtVAR_011748K237RHEP2_HUMANPolymorphism1042435A/BK218R
5UniProtVAR_011749T442MHEP2_HUMANPolymorphism5904A/BT423M
6UniProtVAR_054977E447KHEP2_HUMANDisease (THPH10)142451096A/BE428K
7UniProtVAR_054978P462LHEP2_HUMANDisease (THPH10)121912420A/BP443L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SERPINPS00284 Serpins signature.HEP2_HUMAN469-479
 
  2A:450-460
B:450-460

(-) Exons   (4, 8)

Asymmetric/Biological Unit (4, 8)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000002157271ENSE00001320327chr22:21128167-21128433267HEP2_HUMAN-00--
1.2bENST000002157272bENSE00001299470chr22:21133585-21134489905HEP2_HUMAN1-2972972A:61-278 (gaps)
B:94-278
218
185
1.3ENST000002157273ENSE00000650952chr22:21138260-21138533274HEP2_HUMAN297-388922A:278-369
B:278-369
92
92
1.4ENST000002157274ENSE00000650953chr22:21140292-21140436145HEP2_HUMAN388-436492A:369-417
B:369-417
49
49
1.5bENST000002157275bENSE00000879274chr22:21141163-21142008846HEP2_HUMAN437-499632A:418-480
B:418-480
63
63

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:397
 aligned with HEP2_HUMAN | P05546 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:420
                                    89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499
           HEP2_HUMAN    80 LDLEKIFSEDDDYIDIVDSLSVSPTDSDVSAGNILQLFHGKSRIQRLNILNAKFAFNLYRVLKDQVNTFDNIFIAPVGISTAMGMISLGLKGETHEQVHSILHFKDFVNASSKYEITTIHNLFRKLTHRLFRRNFGYTLRSVNDLYIQKQFPILLDFKTKVREYYFAEAQIADFSDPAFISKTNNHIMKLTKGLIKDALENIDPATQMMILNCIYFKGSWVNKFPVEMTHNHNFRLNEREVVKVSMMQTKGNFLAANDQELDCDILQLEYVGGISMLIVVPHKMSGMKTLEAQLTPRVVERWQKSMTNRTREVLLPKFKLEKNYNLVESLKLMGIRMLFDKNGNMAGISDQRIAIDLFKHQGTITVNEEGTQATTVTTVGFMPLSTQVRFTVDRPFLFLIYEHRTSCLLFMGRVANPSRS 499
               SCOP domains d1jmja_ A:                        Heparin cofactor II (Hc-II, leuserpin 2)                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains ----------------------------------------1jmjA01 A:101-278,A:378-426 Antithrombin, subunit I, domain 2                                                                                                                     1jmjA02 A:279-377,A:427-477 Alpha-1-antitrypsin, domain 1                                          1jmjA01 A:101-278,A:378-426                      1jmjA02 A:279-377,A:427-477                        --- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhh...-----------------------.......hhhhhhhhhhhhhhhhhhhhhhh.......eeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.....eeeeeeeeeee.....hhhhhhhhhhhh...eeee...hhhhhhhhhhhhhhhh................eeeeeeeeee.......hhhhheeeeee.....eeeeeeeeeeeeeeeeee....eeeeeeee...eeeeeeee...hhhhhhhhhhhhhhhhhhhhh.eeeeeeeeee.eeee..eehhhhhhhhh.hhhhh..............eeeeeeeeeeee......................eee....eeeeeee....eeeeeeee...... Sec.struct. author
                 SAPs(SNPs) -------N-----------------------------------------V------------------------------------------------------------------------------H----------------------------R------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------M----K--------------L------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------SERPIN     -------------------- PROSITE
           Transcript 1 (1) Exon 1.2b  PDB: A:61-278 (gaps) UniProt: 1-297 [INCOMPLETE]                                                                                                                                                               ------------------------------------------------------------------------------------------Exon 1.4  PDB: A:369-417 UniProt: 388-436        Exon 1.5b  PDB: A:418-480 UniProt: 437-499                      Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.3  PDB: A:278-369 UniProt: 297-388                                                   --------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 1jmj A  61 LDLEKIFSEDD-----------------------LQLFHGKSRIQRLNILNAKFAFNLYRVLKDQVNTFDNIFIAPVGISTAMGMISLGLKGETHEQVHSILHFKDFVNASSKYEITTIHNLFRKLTHRLFRRNFGYTLRSVNDLYIQKQFPILLDFKTKVREYYFAEAQIADFSDPAFISKTNNHIMKLTKGLIKDALENIDPATQMMILNCIYFKGSWVNKFPVEMTHNHNFRLNEREVVKVSMMQTKGNFLAANDQELDCDILQLEYVGGISMLIVVPHKMSGMKTLEAQLTPRVVERWQKSMTNRTREVLLPKFKLEKNYNLVESLKLMGIRMLFDKNGNMAGISDQRIAIDLFKHQGTITVNEEGTQATTVTTVGFMPLSTQVRFTVDRPFLFLIYEHRTSCLLFMGRVANPSRS 480
                                    70|        -         -    |  100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480
                                     71                      95                                                                                                                                                                                                                                                                                                                                                                                                 

Chain B from PDB  Type:PROTEIN  Length:387
 aligned with HEP2_HUMAN | P05546 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:387
                                   122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       
           HEP2_HUMAN   113 ILQLFHGKSRIQRLNILNAKFAFNLYRVLKDQVNTFDNIFIAPVGISTAMGMISLGLKGETHEQVHSILHFKDFVNASSKYEITTIHNLFRKLTHRLFRRNFGYTLRSVNDLYIQKQFPILLDFKTKVREYYFAEAQIADFSDPAFISKTNNHIMKLTKGLIKDALENIDPATQMMILNCIYFKGSWVNKFPVEMTHNHNFRLNEREVVKVSMMQTKGNFLAANDQELDCDILQLEYVGGISMLIVVPHKMSGMKTLEAQLTPRVVERWQKSMTNRTREVLLPKFKLEKNYNLVESLKLMGIRMLFDKNGNMAGISDQRIAIDLFKHQGTITVNEEGTQATTVTTVGFMPLSTQVRFTVDRPFLFLIYEHRTSCLLFMGRVANPSRS 499
               SCOP domains d1jmjb_ B: Heparin cofactor II (Hc-II, leuserpin 2)                                                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------1jmjB01 B:101-278,B:378-426 Antithrombin, subunit I, domain 2                                                                                                                     1jmjB02 B:279-377,B:427-477 Alpha-1-antitrypsin, domain 1                                          1jmjB01 B:101-278,B:378-426                      1jmjB02 B:279-377,B:427-477                        --- CATH domains
           Pfam domains (1) ----------------Serpin-1jmjB01 B:110-477                                                                                                                                                                                                                                                                                                                                                        --- Pfam domains (1)
           Pfam domains (2) ----------------Serpin-1jmjB02 B:110-477                                                                                                                                                                                                                                                                                                                                                        --- Pfam domains (2)
         Sec.struct. author ........hhhhhhhhhhhhhhhhhhhhhhh.......eeehhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.....eeeeeeeeeee.....hhhhhhhhhhhhh..eeee...hhhhhhhhhhhhhhhh................eeeeeeeeee.......hhhhheeeeee.....eeeeeeeeeeeeeeeeee....eeeeeeee...eeeeeeee...hhhhhhhhhhhhhhhhhhhhh.eeeeeeeeee.eeee..eehhhhhhhhh.hhhhh..............eeeeeeeeeeee......................eee....eeeeeee....eeeeeeee...... Sec.struct. author
                 SAPs(SNPs) ----------------V------------------------------------------------------------------------------H----------------------------R------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------M----K--------------L------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------SERPIN     -------------------- PROSITE
           Transcript 1 (1) Exon 1.2b  PDB: B:94-278 UniProt: 1-297 [INCOMPLETE]                                                                                                                                     ------------------------------------------------------------------------------------------Exon 1.4  PDB: B:369-417 UniProt: 388-436        Exon 1.5b  PDB: B:418-480 UniProt: 437-499                      Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.3  PDB: B:278-369 UniProt: 297-388                                                   --------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 1jmj B  94 ILQLFHGKSRIQRLNILNAKFAFNLYRVLKDQVNTFDNIFIAPVGISTAMGMISLGLKGETHEQVHSILHFKDFVNASSKYEITTIHNLFRKLTHRLFRRNFGYTLRSVNDLYIQKQFPILLDFKTKVREYYFAEAQIADFSDPAFISKTNNHIMKLTKGLIKDALENIDPATQMMILNCIYFKGSWVNKFPVEMTHNHNFRLNEREVVKVSMMQTKGNFLAANDQELDCDILQLEYVGGISMLIVVPHKMSGMKTLEAQLTPRVVERWQKSMTNRTREVLLPKFKLEKNYNLVESLKLMGIRMLFDKNGNMAGISDQRIAIDLFKHQGTITVNEEGTQATTVTTVGFMPLSTQVRFTVDRPFLFLIYEHRTSCLLFMGRVANPSRS 480
                                   103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (HEP2_HUMAN | P05546)
molecular function
    GO:0004866    endopeptidase inhibitor activity    Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
    GO:0008201    heparin binding    Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
    GO:0030414    peptidase inhibitor activity    Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
    GO:0004867    serine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
    GO:0008218    bioluminescence    The production of light by certain enzyme-catalyzed reactions in cells.
    GO:0007596    blood coagulation    The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers.
    GO:0006935    chemotaxis    The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
    GO:0007599    hemostasis    The stopping of bleeding (loss of body fluid) or the arrest of the circulation to an organ or part.
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0010466    negative regulation of peptidase activity    Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
cellular component
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        HEP2_HUMAN | P055461jmo 2nat 2ncu 2ncv 2ncw

(-) Related Entries Specified in the PDB File

1jmo