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(-)Asym./Biol. Unit
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(-) Description

Title :  CORTICOSTEROID-BINDING GLOBULIN WITH ENGINEERED DISULPHIDE BRIDGE BETWEEN RESIDUES 100 AND 236
 
Authors :  W. L. Chan, A. Zhou, R. J. Read
Date :  28 Aug 13  (Deposition) - 01 Oct 14  (Release) - 10 Dec 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A
Keywords :  Transport Protein, Serpin, Engineered Disulphide (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  W. L. Chan, A. Zhou, R. J. Read
Towards Engineering Hormone-Binding Globulins As Drug Delivery Agents.
Plos One V. 9 13402 2014
PubMed-ID: 25426859  |  Reference-DOI: 10.1371/JOURNAL.PONE.0113402

(-) Compounds

Molecule 1 - CORTICOSTEROID-BINDING GLOBULIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PSUMO 3
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Variant: STAR
    Expression System Vector Type: PLASMID
    Fragment: RESIDUES 33-405
    Mutation: YES
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: CBG, SERPIN A6, TRANSCORTIN
    Tissue: BLOOD

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 4C41)

(-) Sites  (0, 0)

(no "Site" information available for 4C41)

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:100 -A:236

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4C41)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_007111L115HCBG_HUMANDisease (CBG deficiency)113418909AL93H
2UniProtVAR_024350S246ACBG_HUMANPolymorphism2228541AS224A
3UniProtVAR_016223D389NCBG_HUMANDisease (CBG deficiency)28929488AD367N
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SERPINPS00284 Serpins signature.CBG_HUMAN377-387  1A:355-365

(-) Exons   (0, 0)

(no "Exon" information available for 4C41)

(-) 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:367
 aligned with CBG_HUMAN | P08185 from UniProtKB/Swiss-Prot  Length:405

    Alignment length:369
                                    46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396         
            CBG_HUMAN    37 RGLASANVDFAFSLYKHLVALSPKKNIFISPVSISMALAMLSLGTCGHTRAQLLQGLGFNLTERSETEIHQGFQHLHQLFAKSDTSLEMTMGNALFLDGSLELLESFSADIKHYYESEVLAMNFQDWATASRQINSYVKNKTQGKIVDLFSGLDSPAILVLVNYIFFKGTWTQPFDLASTREENFYVDETTVVKVPMMLQSSTISYLHDSELPCQLVQMNYVGNGTVFFILPDKGKMNTVIAALSRDTINRWSAGLTSSQVDLYIPKVTISGVYDLGDVLEEMGIADLFTNQANFSRITQDAQLKSSKVVHKAVLQLNEEGVDTAGSTGVTLNLTSKPIILRFNQPFIIMIFDHFTWSSLFLARVMNPV 405
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhh....eeehhhhhhhhhhhhhh..hhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhh.....eeeeeeeeeee.....hhhhhhhhhhhhh.eeeee...hhhhhhhhhhhhhhhhh................eeeeeeeeeeee.....hhhhheeeeeeee..eeeeeeeeeeeeeeeeee.....eeeeeeee...eeeeeeee...hhhhhhhhhhhhhhhhhhhhheeeeeeeeee.eeeeeeeehhhhhhhh..hhhhh.............eeeeeeeeeeeeee...eeeeeeeeeeeeee.--.eeee....eeeeeee....eeeeeeee.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------H----------------------------------------------------------------------------------------------------------------------------------A----------------------------------------------------------------------------------------------------------------------------------------------N---------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------SERPIN     ------------------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4c41 A  15 RGLASANVDFAFSLYKHLVALSPKKNIFISPVSISMALAMLSLGTCGHTRAQLLQGLGFNLTERSETEIHQGFQHLHQLFAKSDTCLEMTMGNALFLDGSLELLESFSADIKHYYESEVLAMNFQDWATASRQINSYVKNKTQGKIVDLFSGLDSPAILVLVNYIFFKGTWTQPFDLASTREENFYVDETTVVKVPMMLQSSTISYLHDSELPCQLVQMNYCGNGTVFFILPDKGKMNTVIAALSRDTINRWSAGLTSSQVDLYIPKVTISGVYDLGDVLEEMGIADLFTNQANFSRITQDAQLKSSKVVHKAVLQLNEEGVDTAGSTGVTLNLR--PIILRFNQPFIIMIFDHFTWSSLFLARVMNPV 383
                                    24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344    |  354       364       374         
                                                                                                                                                                                                                                                                                                                                                                        349  |                               
                                                                                                                                                                                                                                                                                                                                                                           352
   Legend:   → Mismatch (orange background)
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  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  (0, 0)

(no "SCOP Domain" information available for 4C41)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4C41)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4C41)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CBG_HUMAN | P08185)
molecular function
    GO:0008289    lipid binding    Interacting selectively and non-covalently with a lipid.
    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.
    GO:0005496    steroid binding    Interacting selectively and non-covalently with a steroid, any of a large group of substances that have in common a ring system based on 1,2-cyclopentanoperhydrophenanthrene.
biological process
    GO:0008211    glucocorticoid metabolic process    The chemical reactions and pathways involving glucocorticoids, hormonal C21 corticosteroids synthesized from cholesterol. Glucocorticoids act primarily on carbohydrate and protein metabolism, and have anti-inflammatory effects.
    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:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
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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  4c41
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 Related Entries

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

UniProtKB/Swiss-Prot
        CBG_HUMAN | P08185: 2vdx 2vdy 4bb2 4c49

(-) Related Entries Specified in the PDB File

4c49 REACTIVE LOOP CLEAVED HUMAN CBG IN COMPLEX WITH CORTISOL