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(-) Description

Title :  CRYSTAL STRUCTURE OF HUMAN TYPE 3 3ALPHA-HYDROXYSTEROID DEHYDROGENASE IN COMPLEX WITH NADP(H), CITRATE AND ACETATE MOLECULES
 
Authors :  J. -F. Couture, K. Pereira De Jesus-Tran, A. -M. Roy, P. Legrand, L. Ca L. Cote, V. Luu-The, F. Labrie, R. Breton
Date :  23 Sep 04  (Deposition) - 21 Jun 05  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Human 3Alphahds3; Aldo-Keto Reductase; Nadp; Induce-Fit Mecanism, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. -F. Couture, A. -M. Roy, L. Cantin, P. Legrand, V. Luu-The, F. Labrie R. Breton
Comparison Of Crystal Structures Of Human Type 3 3Alpha-Hydroxysteroid Dehydrogenase Reveals An "Induced-Fit Mechanism And A Conserved Basic Motif Involved In The Binding Of Androgen
Protein Sci. V. 14 1485 2005
PubMed-ID: 15929998  |  Reference-DOI: 10.1110/PS.051353205

(-) Compounds

Molecule 1 - ALDO-KETO REDUCTASE FAMILY 1 MEMBER C2
    ChainsA, B
    EC Number1.1.1.213
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPGEX
    Expression System StrainBL21(DE3)PLYSS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneAKR1C2, DDH2
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymH3ALPHAHSD3

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (6, 11)

Asymmetric/Biological Unit (6, 11)
No.NameCountTypeFull Name
1ACT3Ligand/IonACETATE ION
2BME1Ligand/IonBETA-MERCAPTOETHANOL
3CIT1Ligand/IonCITRIC ACID
4EDO2Ligand/Ion1,2-ETHANEDIOL
5NAP2Ligand/IonNADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
6SO42Ligand/IonSULFATE ION

(-) Sites  (11, 11)

Asymmetric Unit (11, 11)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLN A:6 , PRO A:17 , VAL A:18 , LEU A:19 , GLY A:45 , HIS A:47 , PHE A:284BINDING SITE FOR RESIDUE ACT A 1002
02AC2SOFTWARETYR A:55 , HIS A:117 , NAP A:1001 , CIT A:1006 , HOH A:5005BINDING SITE FOR RESIDUE ACT A 5002
03AC3SOFTWARETYR B:55 , HIS B:117 , NAP B:5001 , HOH B:6191BINDING SITE FOR RESIDUE ACT B 6002
04AC4SOFTWAREARG A:96 , ARG B:276BINDING SITE FOR RESIDUE SO4 B 1004
05AC5SOFTWAREARG B:91 , HOH B:6067 , HOH B:6160BINDING SITE FOR RESIDUE SO4 B 5004
06AC6SOFTWAREGLY A:22 , THR A:23 , TYR A:24 , ASP A:50 , TYR A:55 , LYS A:84 , HIS A:117 , SER A:166 , ASN A:167 , GLN A:190 , TYR A:216 , SER A:217 , ALA A:218 , LEU A:219 , GLY A:220 , SER A:221 , HIS A:222 , LEU A:236 , ALA A:253 , LEU A:268 , ALA A:269 , LYS A:270 , SER A:271 , TYR A:272 , ARG A:276 , GLN A:279 , ASN A:280 , ACT A:5002 , HOH A:5005 , HOH A:5017 , HOH A:5043 , HOH A:5063 , HOH A:5175 , HOH A:5198BINDING SITE FOR RESIDUE NAP A 1001
07AC7SOFTWAREGLY B:22 , THR B:23 , TYR B:24 , ASP B:50 , TYR B:55 , LYS B:84 , HIS B:117 , SER B:166 , ASN B:167 , GLN B:190 , TYR B:216 , SER B:217 , ALA B:218 , LEU B:219 , GLY B:220 , SER B:221 , HIS B:222 , LEU B:236 , ALA B:253 , LEU B:268 , LYS B:270 , SER B:271 , TYR B:272 , ARG B:276 , GLN B:279 , ASN B:280 , LEU B:306 , ACT B:6002 , HOH B:6022BINDING SITE FOR RESIDUE NAP B 5001
08AC8SOFTWARETYR B:5 , GLN B:6 , PRO B:17 , VAL B:18 , LEU B:19 , GLY B:45 , PHE B:46 , HIS B:47 , HIS B:48 , PHE B:284BINDING SITE FOR RESIDUE EDO B 1003
09AC9SOFTWARELYS A:123 , ASP A:140 , THR A:141 , HOH A:5252BINDING SITE FOR RESIDUE EDO A 5003
10BC1SOFTWARETYR A:24 , VAL A:54 , TRP A:86 , HIS A:222 , TRP A:227 , LEU A:306 , ACT A:5002 , HOH A:5005 , HOH A:5223 , HOH A:5228BINDING SITE FOR RESIDUE CIT A 1006
11BC2SOFTWARETYR A:5 , SER B:3 , TYR B:5 , CYS B:7BINDING SITE FOR RESIDUE BME A 1005

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (6, 12)

Asymmetric/Biological Unit (6, 12)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_048216F46YAK1C2_HUMANPolymorphism2854482A/BF46Y
2UniProtVAR_066632I79VAK1C2_HUMANDisease (SRXY8)387906750A/BI79V
3UniProtVAR_066633H90QAK1C2_HUMANDisease (SRXY8)797044460A/BH90Q
4UniProtVAR_014748L172QAK1C2_HUMANPolymorphism11474A/BL172Q
5UniProtVAR_066634H222QAK1C2_HUMANDisease (SRXY8)  ---A/BH222Q
6UniProtVAR_066635N300TAK1C2_HUMANDisease (SRXY8)387906751A/BN300T

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

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALDOKETO_REDUCTASE_2PS00062 Aldo/keto reductase family signature 2.AK1C2_HUMAN151-168
 
  2A:151-168
B:151-168
2ALDOKETO_REDUCTASE_3PS00063 Aldo/keto reductase family putative active site signature.AK1C2_HUMAN268-283
 
  2A:268-283
B:268-283

(-) Exons   (9, 18)

Asymmetric/Biological Unit (9, 18)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.4aENST000003807534aENSE00002187446chr10:5046215-5045944272AK1C2_HUMAN1-28282A:1-28
B:2-28
28
27
1.5ENST000003807535ENSE00001613313chr10:5043873-5043706168AK1C2_HUMAN29-84562A:29-84
B:29-84
56
56
1.6bENST000003807536bENSE00001619656chr10:5042858-5042742117AK1C2_HUMAN85-123392A:85-123
B:85-123
39
39
1.6eENST000003807536eENSE00001705571chr10:5041469-504139278AK1C2_HUMAN124-149262A:124-149
B:124-149
26
26
1.7bENST000003807537bENSE00001693200chr10:5040939-5040817123AK1C2_HUMAN150-190412A:150-190
B:150-190
41
41
1.8ENST000003807538ENSE00001714710chr10:5038057-5037948110AK1C2_HUMAN191-227372A:191-227
B:191-227
37
37
1.9bENST000003807539bENSE00001785365chr10:5037676-5037511166AK1C2_HUMAN227-282562A:227-282
B:227-282
56
56
1.10aENST0000038075310aENSE00001601494chr10:5034105-503402383AK1C2_HUMAN283-310282A:283-310
B:283-310
28
28
1.11cENST0000038075311cENSE00001895645chr10:5032230-50299672264AK1C2_HUMAN310-323142A:310-323
B:310-323
14
14

(-) 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:325
 aligned with AK1C2_HUMAN | P52895 from UniProtKB/Swiss-Prot  Length:323

    Alignment length:325
                              1                                                                                                                                                                                                                                                                                                                                  
                              |      8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318     
          AK1C2_HUMAN     - --MDSKYQCVKLNDGHFMPVLGFGTYAPAEVPKSKALEAVKLAIEAGFHHIDSAHVYNNEEQVGLAIRSKIADGSVKREDIFYTSKLWSNSHRPELVRPALERSLKNLQLDYVDLYLIHFPVSVKPGEEVIPKDENGKILFDTVDLCATWEAMEKCKDAGLAKSIGVSNFNHRLLEMILNKPGLKYKPVCNQVECHPYFNQRKLLDFCKSKDIVLVAYSALGSHREEPWVDPNSPVLLEDPVLCALAKKHKRTPALIALRYQLQRGVVVLAKSYNEQRIRQNVQVFEFQLTSEEMKAIDGLNRNVRYLTLDIFAGPPNYPFSDEY 323
               SCOP domains d1xjba_ A: 3-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains 1xjbA00 A:-1-323 NADP-dependent oxidoreductase                                                                                                                                                                                                                                                                                        CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........eee.....eee.eeee........hhhhhhhhhhhhhhh..eee.hhhhhhhhhhhhhhhhhhhh...hhhhheeeeeehhhhhhhhhhhhhhhhhhhhhh...eeeeee..........................hhhhhhhhhhhhhhh..eeeeeee..hhhhhhhhhh.........eeeee......hhhhhhhhhhh..eeeee.................hhhhhhhhhhhhhhhh.hhhhhhhhhhhhh..eeeee..hhhhhhhhhhhhh...hhhhhhhhhh.........hhhhh........... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------Y--------------------------------V----------Q---------------------------------------------------------------------------------Q-------------------------------------------------Q-----------------------------------------------------------------------------T----------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------ALDOKETO_REDUCTASE---------------------------------------------------------------------------------------------------ALDOKETO_REDUCTA---------------------------------------- PROSITE
           Transcript 1 (1) --Exon 1.4a  PDB: A:1-28      Exon 1.5  PDB: A:29-84 UniProt: 29-84                   Exon 1.6b  PDB: A:85-123               Exon 1.6e  PDB: A:124-149 Exon 1.7b  PDB: A:150-190                Exon 1.8  PDB: A:191-227             -------------------------------------------------------Exon 1.10a  PDB: A:283-310  ------------- Transcript 1 (1)
           Transcript 1 (2) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.9b  PDB: A:227-282 UniProt: 227-282              ---------------------------Exon 1.11c     Transcript 1 (2)
                 1xjb A  -1 SVDDSKYQCVKLNDGHFMPVLGFGTYAPAEVPKSKALEAVKLAIEAGFHHIDSAHVYNNEEQVGLAIRSKIADGSVKREDIFYTSKLWSNSHRPELVRPALERSLKNLQLDYVDLYLIHFPVSVKPGEEVIPKDENGKILFDTVDLCATWEAMEKCKDAGLAKSIGVSNFNHRLLEMILNKPGLKYKPVCNQVECHPYFNQRKLLDFCKSKDIVLVAYSALGSHREEPWVDPNSPVLLEDPVLCALAKKHKRTPALIALRYQLQRGVVVLAKSYNEQRIRQNVQVFEFQLTSEEMKAIDGLNRNVRYLTLDIFAGPPNYPFSDEY 323
                                     8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318     

Chain B from PDB  Type:PROTEIN  Length:322
 aligned with AK1C2_HUMAN | P52895 from UniProtKB/Swiss-Prot  Length:323

    Alignment length:322
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321  
          AK1C2_HUMAN     2 DSKYQCVKLNDGHFMPVLGFGTYAPAEVPKSKALEAVKLAIEAGFHHIDSAHVYNNEEQVGLAIRSKIADGSVKREDIFYTSKLWSNSHRPELVRPALERSLKNLQLDYVDLYLIHFPVSVKPGEEVIPKDENGKILFDTVDLCATWEAMEKCKDAGLAKSIGVSNFNHRLLEMILNKPGLKYKPVCNQVECHPYFNQRKLLDFCKSKDIVLVAYSALGSHREEPWVDPNSPVLLEDPVLCALAKKHKRTPALIALRYQLQRGVVVLAKSYNEQRIRQNVQVFEFQLTSEEMKAIDGLNRNVRYLTLDIFAGPPNYPFSDEY 323
               SCOP domains d1xjbb_ B: 3-alpha-hydroxysteroid dehydrogenase                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1xjbB00 B:2-323 NADP-dependent oxidoreductase                                                                                                                                                                                                                                                                                      CATH domains
           Pfam domains (1) ----------------Aldo_ket_red-1xjbB01 B:18-301                                                                                                                                                                                                                                                               ---------------------- Pfam domains (1)
           Pfam domains (2) ----------------Aldo_ket_red-1xjbB02 B:18-301                                                                                                                                                                                                                                                               ---------------------- Pfam domains (2)
         Sec.struct. author .....eee.....eee.eeee........hhhhhhhhhhhhhhh..eee.hhhhhhhhhhhhhhhhhhhh...hhhhheeeeeehhhhhhhhhhhhhhhhhhhhhh...eeeeee....ee................ee..hhhhhhhhhhhhhhh..eeeeeee..hhhhhhhhhh.........eeeee......hhhhhhhhhhh..eeeee.................hhhhhhhhhhhhhhhh.hhhhhhhhhhhhh..eeeee..hhhhhhhhhhhhhh..hhhhhhhhhh.........hhhhh........... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------Y--------------------------------V----------Q---------------------------------------------------------------------------------Q-------------------------------------------------Q-----------------------------------------------------------------------------T----------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------ALDOKETO_REDUCTASE---------------------------------------------------------------------------------------------------ALDOKETO_REDUCTA---------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.4a  PDB: B:2-28     Exon 1.5  PDB: B:29-84 UniProt: 29-84                   Exon 1.6b  PDB: B:85-123               Exon 1.6e  PDB: B:124-149 Exon 1.7b  PDB: B:150-190                Exon 1.8  PDB: B:191-227             -------------------------------------------------------Exon 1.10a  PDB: B:283-310  ------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.9b  PDB: B:227-282 UniProt: 227-282              ---------------------------Exon 1.11c     Transcript 1 (2)
                 1xjb B   2 DSKYQCVKLNDGHFMPVLGFGTYAPAEVPKSKALEAVKLAIEAGFHHIDSAHVYNNEEQVGLAIRSKIADGSVKREDIFYTSKLWSNSHRPELVRPALERSLKNLQLDYVDLYLIHFPVSVKPGEEVIPKDENGKILFDTVDLCATWEAMEKCKDAGLAKSIGVSNFNHRLLEMILNKPGLKYKPVCNQVECHPYFNQRKLLDFCKSKDIVLVAYSALGSHREEPWVDPNSPVLLEDPVLCALAKKHKRTPALIALRYQLQRGVVVLAKSYNEQRIRQNVQVFEFQLTSEEMKAIDGLNRNVRYLTLDIFAGPPNYPFSDEY 323
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321  

   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  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (23, 23)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (AK1C2_HUMAN | P52895)
molecular function
    GO:0004032    alditol:NADP+ 1-oxidoreductase activity    Catalysis of the reaction: an alditol + NADP+ = an aldose + NADPH + H+.
    GO:0032052    bile acid binding    Interacting selectively and non-covalently with bile acids, any of a group of steroid carboxylic acids occurring in bile.
    GO:0031406    carboxylic acid binding    Interacting selectively and non-covalently with a carboxylic acid, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
    GO:0047086    ketosteroid monooxygenase activity    Catalysis of the reaction: O2 + NADPH + progesterone = H2O + NADP+ + testosterone acetate.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016655    oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which NADH or NADPH acts as a hydrogen or electron donor and reduces a quinone or a similar acceptor molecule.
    GO:0018636    phenanthrene 9,10-monooxygenase activity    Catalysis of the reaction: phenanthrene + O2 + NADH + H+ = H2O + NAD+ + phenanthrene-9,10-oxide.
    GO:0047115    trans-1,2-dihydrobenzene-1,2-diol dehydrogenase activity    Catalysis of the reaction: NADP+ + trans-1,2-dihydrobenzene-1,2-diol = NADPH + catechol.
biological process
    GO:0007186    G-protein coupled receptor signaling pathway    A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
    GO:0071395    cellular response to jasmonic acid stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a jasmonic acid stimulus.
    GO:0071799    cellular response to prostaglandin D stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a prostagladin D stimulus.
    GO:0044597    daunorubicin metabolic process    The chemical reactions and pathways involving daunorubicin, a chemotherapeutic of the anthracycline family that is given as a treatment for some types of cancer.
    GO:0007586    digestion    The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
    GO:0044598    doxorubicin metabolic process    The chemical reactions and pathways involving doxorubicin, an anthracycline antibiotic, used in cancer chemotherapy.
    GO:0030855    epithelial cell differentiation    The process in which a relatively unspecialized cell acquires specialized features of an epithelial cell, any of the cells making up an epithelium.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:0051897    positive regulation of protein kinase B signaling    Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
    GO:0042448    progesterone metabolic process    The chemical reactions and pathways involving progesterone, a steroid hormone produced in the ovary which prepares and maintains the uterus for pregnancy. Also found in plants.
    GO:0006693    prostaglandin metabolic process    The chemical reactions and pathways involving prostaglandins, any of a group of biologically active metabolites which contain a cyclopentane ring due to the formation of a bond between two carbons of a fatty acid. They have a wide range of biological activities.
    GO:0008202    steroid metabolic process    The chemical reactions and pathways involving steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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  AK1C2_HUMAN | P52895
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 Related Entries

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

UniProtKB/Swiss-Prot
        AK1C2_HUMAN | P528951ihi 1j96 2hdj 2ipj 4jq1 4jq2 4jq3 4jq4 4jqa 4jtq 4jtr 4l1w 4l1x 4xo6 4xo7

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1XJB)