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(-) Description

Title :  CRYSTAL STRUCTURE OF THE A/HONG KONG/1/1968 (H3N2) INFLUENZA VIRUS HEMAGGLUTININ
 
Authors :  D. C. Ekiert, I. A. Wilson
Date :  19 Jun 12  (Deposition) - 19 Sep 12  (Release) - 10 Oct 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A,B,C,D,E,F
Keywords :  Viral Fusion Protein, Virus Attachment And Entry, Viral Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  D. C. Ekiert, A. K. Kashyap, J. Steel, A. Rubrum, G. Bhabha, R. Khayat, J. H. Lee, M. A. Dillon, R. E. O'Neil, A. M. Faynboym, M. Horowitz, L. Horowitz, A. B. Ward, P. Palese, R. Webby, R. A. Lerner, R. R. Bhatt, I. A. Wilson
Cross-Neutralization Of Influenza A Viruses Mediated By A Single Antibody Loop.
Nature V. 489 526 2012
PubMed-ID: 22982990  |  Reference-DOI: 10.1038/NATURE11414

(-) Compounds

Molecule 1 - HEMAGGLUTININ HA1 CHAIN
    Chains: A, C, E
    Engineered: YES
    Expression System: TRICHOPLUSIA NI
    Expression System Common: CABBAGE LOOPER
    Expression System Strain: HIGH FIVE
    Expression System Taxid: 7111
    Expression System Vector Type: BACULOVIRUS
    Fragment: UNP RESIDUES 27-345
    Gene: HA
    Organism Scientific: INFLUENZA A VIRUS
    Organism Taxid: 506350
    Strain: A/HONG KONG/1/1968 H3N2
    Synonym: HEMAGGLUTININ RECEPTOR BINDING SUBUNIT HA1
 
Molecule 2 - HEMAGGLUTININ HA2 CHAIN
    Chains: B, D, F
    Engineered: YES
    Expression System: TRICHOPLUSIA NI
    Expression System Common: CABBAGE LOOPER
    Expression System Strain: HIGH FIVE
    Expression System Taxid: 7111
    Expression System Vector Type: BACULOVIRUS
    Fragment: UNP RESIDUES 346-519
    Gene: HA
    Organism Scientific: INFLUENZA A VIRUS
    Organism Taxid: 506350
    Strain: A/HONG KONG/1/1968 H3N2
    Synonym: HEMAGGLUTININ FUSION SUBUNIT HA2

 Structural Features

(-) Chains, Units

  123456
Asymmetric/Biological Unit : ABCDEF

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 39)

Asymmetric/Biological Unit (5, 39)
No.NameCountTypeFull Name
1BMA3Ligand/IonBETA-D-MANNOSE
2GOL2Ligand/IonGLYCEROL
3MAN3Ligand/IonALPHA-D-MANNOSE
4NAG25Ligand/IonN-ACETYL-D-GLUCOSAMINE
5SO46Ligand/IonSULFATE ION

(-) Sites  (39, 39)

Asymmetric Unit (39, 39)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASN A:22 , GLU A:35 , PRO A:324 , HOH A:762 , HOH A:792 , HOH A:839BINDING SITE FOR RESIDUE NAG A 401
02AC2SOFTWAREASN A:38 , THR A:318 , LEU B:52BINDING SITE FOR RESIDUE NAG A 402
03AC3SOFTWAREASN A:81 , GLU A:119 , PHE A:120 , HOH A:702 , PRO E:324 , LYS E:326BINDING SITE FOR RESIDUE NAG A 403
04AC4SOFTWAREASN A:165 , THR A:167 , NAG A:405 , HOH A:555 , HOH A:831 , SER C:219 , HOH C:780BINDING SITE FOR RESIDUE NAG A 404
05AC5SOFTWARENAG A:404 , BMA A:406 , PRO C:221 , TRP C:222 , HOH C:780BINDING SITE FOR RESIDUE NAG A 405
06AC6SOFTWARENAG A:405 , MAN A:407BINDING SITE FOR RESIDUE BMA A 406
07AC7SOFTWAREBMA A:406BINDING SITE FOR RESIDUE MAN A 407
08AC8SOFTWARESER A:45 , ASN A:285 , VAL A:297 , NAG A:409 , HOH A:629 , HOH A:694 , HOH A:793BINDING SITE FOR RESIDUE NAG A 408
09AC9SOFTWARENAG A:408 , HOH A:694 , GLU B:69BINDING SITE FOR RESIDUE NAG A 409
10BC1SOFTWAREARG A:207 , ARG A:208 , HOH A:559 , HOH A:587 , HOH A:652 , ARG C:224BINDING SITE FOR RESIDUE SO4 A 410
11BC2SOFTWAREALA B:147 , GLU B:150 , ASN B:154 , HOH B:500 , HOH B:528BINDING SITE FOR RESIDUE NAG B 201
12BC3SOFTWAREARG B:127 , HIS B:159 , ASP B:160 , HOH B:435 , LYS D:139BINDING SITE FOR RESIDUE SO4 B 202
13BC4SOFTWAREASN C:38 , THR C:318 , NAG C:502 , HOH C:862 , LEU D:52BINDING SITE FOR RESIDUE NAG C 501
14BC5SOFTWARETHR C:40 , NAG C:501BINDING SITE FOR RESIDUE NAG C 502
15BC6SOFTWAREPRO A:324 , LYS A:326 , ASN C:81 , GLU C:119 , PHE C:120 , NAG C:504 , HOH C:852BINDING SITE FOR RESIDUE NAG C 503
16BC7SOFTWARELYS A:326 , ILE C:121 , PHE C:174 , TYR C:257 , NAG C:503BINDING SITE FOR RESIDUE NAG C 504
17BC8SOFTWAREASN C:165 , THR C:167 , NAG C:506 , HOH C:788 , SER E:219BINDING SITE FOR RESIDUE NAG C 505
18BC9SOFTWARENAG C:505 , BMA C:507 , PRO E:221 , TRP E:222BINDING SITE FOR RESIDUE NAG C 506
19CC1SOFTWARENAG C:506BINDING SITE FOR RESIDUE BMA C 507
20CC2SOFTWARESER C:45 , ASN C:285 , VAL C:297 , NAG C:509 , HOH C:689 , HOH C:711 , HOH C:726 , HOH C:908BINDING SITE FOR RESIDUE NAG C 508
21CC3SOFTWARELYS C:299 , NAG C:508BINDING SITE FOR RESIDUE NAG C 509
22CC4SOFTWARELYS C:92 , ASP C:271 , PRO C:273 , HOH C:651 , HOH C:683 , HOH C:846BINDING SITE FOR RESIDUE GOL C 510
23CC5SOFTWAREALA D:147 , GLU D:150 , ASN D:154 , THR D:156 , NAG D:202 , HOH D:508BINDING SITE FOR RESIDUE NAG D 201
24CC6SOFTWARENAG D:201BINDING SITE FOR RESIDUE NAG D 202
25CC7SOFTWARETRP D:14 , GLU D:15 , GLY D:16 , ARG D:25 , HOH D:489 , HOH D:519BINDING SITE FOR RESIDUE SO4 D 203
26CC8SOFTWAREARG D:127 , HIS D:159 , ASP D:160 , HOH D:462 , LYS F:139BINDING SITE FOR RESIDUE SO4 D 204
27CC9SOFTWAREASN E:38 , THR E:40 , THR E:318 , HOH E:895BINDING SITE FOR RESIDUE NAG E 501
28DC1SOFTWAREGLN E:80 , ASN E:81 , PHE E:120 , ILE E:121 , HOH E:931BINDING SITE FOR RESIDUE NAG E 502
29DC2SOFTWARESER A:219 , HOH A:595 , ASN E:165 , THR E:167 , NAG E:504 , HOH E:761BINDING SITE FOR RESIDUE NAG E 503
30DC3SOFTWAREPRO A:221 , TRP A:222 , HOH A:595 , THR E:167 , NAG E:503 , BMA E:505BINDING SITE FOR RESIDUE NAG E 504
31DC4SOFTWARENAG E:504 , MAN E:506 , MAN E:507BINDING SITE FOR RESIDUE BMA E 505
32DC5SOFTWAREBMA E:505BINDING SITE FOR RESIDUE MAN E 506
33DC6SOFTWAREBMA E:505BINDING SITE FOR RESIDUE MAN E 507
34DC7SOFTWARESER E:45 , ASN E:285 , VAL E:297 , NAG E:509 , HOH E:703 , HOH E:836 , HOH E:863 , HOH E:962BINDING SITE FOR RESIDUE NAG E 508
35DC8SOFTWARENAG E:508 , GLU F:69BINDING SITE FOR RESIDUE NAG E 509
36DC9SOFTWAREARG A:224 , HOH A:830 , ARG E:207 , ARG E:208 , HOH E:733 , HOH E:781 , HOH E:949BINDING SITE FOR RESIDUE SO4 E 510
37EC1SOFTWAREARG E:90 , LYS E:92 , ASP E:271 , PRO E:273 , HOH E:680 , HOH E:696BINDING SITE FOR RESIDUE GOL E 511
38EC2SOFTWAREALA F:147 , GLU F:150 , ASN F:154 , THR F:156 , HOH F:433BINDING SITE FOR RESIDUE NAG F 201
39EC3SOFTWARELYS B:139 , ARG F:127 , HIS F:159 , ASP F:160BINDING SITE FOR RESIDUE SO4 F 202

(-) SS Bonds  (18, 18)

Asymmetric/Biological Unit
No.Residues
1A:14 -B:137
2A:52 -A:277
3A:64 -A:76
4A:97 -A:139
5A:281 -A:305
6B:144 -B:148
7C:14 -D:137
8C:52 -C:277
9C:64 -C:76
10C:97 -C:139
11C:281 -C:305
12D:144 -D:148
13E:14 -F:137
14E:52 -E:277
15E:64 -E:76
16E:97 -E:139
17E:281 -E:305
18F:144 -F:148

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Asn A:54 -Pro A:55
2Asn C:54 -Pro C:55
3Asn E:54 -Pro E:55

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4FNK)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4FNK)

(-) Exons   (0, 0)

(no "Exon" information available for 4FNK)

(-) 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:318
                                                                                                                                                                                                                                                                                                                                                              
               SCOP domains d4fnka_ A: Hemagglutinin                                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeeeee......eee.......eee..eee.ee......eeee...eee....hhhhhhhhhhhhhhhh.....eeee..........ee..hhhhhhhhhhhhh...eee.......ee....eeeeee..eee....eee.ee.......eeeeee......eeeeeeeee..hhhhhhhhhh.....eeee....eeee...............eeeeeeeee....eeeeee...eeee.eeee......eeee....eeeee..eee..eee.....ee......eee..ee......eee......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 4fnk A   9 PGATLCLGHHAVPNGTLVKTITDDQIEVTNATELVQSSSTGKICNNPHRILDGIDCTLIDALLGDPHCDVFQNETWDLFVERSKAFSNCYPYDVPDYASLRSLVASSGTLEFITEGFTWTGVTQNGGSNACKRGPGSGFFSRLNWLTKSGSTYPVLNVTMPNNDNFDKLYIWGVHHPSTNQEQTSLYVQASGRVTVSTRRSQQTIIPNIGSRPWVRGLSSRISIYWTIVKPGDVLVINSNGNLIAPRGYFKMRTGKSSIMRSDAPIDTCISECITPNGSIPNDKPFQNVNKITYGACPKYVKQNTLKLATGMRNVPEK 326
                                    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:172
                                                                                                                                                                                                            
               SCOP domains d4fnkb_ B: Influenza hemagglutinin (stalk)                                                                                                                                   SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....................eeeeeee..eeeeeehhhhhhhhhhhhhhhhhhhhh...ee............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eee....eeee....hhhhhhhhhh...hhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4fnk B   1 GLFGAIAGFIENGWEGMIDGWYGFRHQNSEGTGQAADLKSTQAAIDQINGKLNRVIEKTNEKFHQIEKEFSEVEGRIQDLEKYVEDTKIDLWSYNAELLVALENQHTIDLTDSEMNKLFEKTGRQLRENAEDMGNGCFKIYHKCDNACIESIRNGTYDHDVYRDEALNNRFQ 172
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170  


Chain C from PDB  Type:PROTEIN  Length:317
                                                                                                                                                                                                                                                                                                                                                             
               SCOP domains d4fnkc_ C: Hemagglutinin                                                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeee......eee.......eee..eee.ee......eeee...eee....hhhhhhhhhhhhhhhh.....eeee..........ee..hhhhhhhhhhhhh...eee.......eeeee.eeeeee..eee....eeeeee.......eeeeee......eeeeeeeee..hhhhhhhhhh....eeeee....eeee...............eeeeeeeee....eeeeeeee.eeee.eeee......eeee....eeeee..eee..eee.....ee......eeee.ee......eee........ Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4fnk C   9 PGATLCLGHHAVPNGTLVKTITDDQIEVTNATELVQSSSTGKICNNPHRILDGIDCTLIDALLGDPHCDVFQNETWDLFVERSKAFSNCYPYDVPDYASLRSLVASSGTLEFITEGFTWTGVTQNGGSNACKRGPGSGFFSRLNWLTKSGSTYPVLNVTMPNNDNFDKLYIWGVHHPSTNQEQTSLYVQASGRVTVSTRRSQQTIIPNIGSRPWVRGLSSRISIYWTIVKPGDVLVINSNGNLIAPRGYFKMRTGKSSIMRSDAPIDTCISECITPNGSIPNDKPFQNVNKITYGACPKYVKQNTLKLATGMRNVPE 325
                                    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 D from PDB  Type:PROTEIN  Length:171
                                                                                                                                                                                                           
               SCOP domains d4fnkd_ D: Influenza hemagglutinin (stalk)                                                                                                                                  SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....................eeeeeee..eeeeeehhhhhhhhhhhhhhhhhhhhh..eee............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eee....eeee....hhhhhhhhhh...hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4fnk D   1 GLFGAIAGFIENGWEGMIDGWYGFRHQNSEGTGQAADLKSTQAAIDQINGKLNRVIEKTNEKFHQIEKEFSEVEGRIQDLEKYVEDTKIDLWSYNAELLVALENQHTIDLTDSEMNKLFEKTGRQLRENAEDMGNGCFKIYHKCDNACIESIRNGTYDHDVYRDEALNNRF 171
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170 


Chain E from PDB  Type:PROTEIN  Length:318
                                                                                                                                                                                                                                                                                                                                                              
               SCOP domains d4fnke_ E: Hemagglutinin                                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeeeee......eee.......eee..eee.ee......eeee...eee....hhhhhhhhhhhhhhhh.....eeee..........ee..hhhhhhhhhhhhh...eee.......ee....eeeeee..eee....eee.ee.......eeeeee......eeeeeeeee..hhhhhhhhhh....eeeee....eeee...............eeeeeeeee....eeeeeeee.eeee.eeee......eeee....eeeee..eee..eee.....ee......eee..ee......eee......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 4fnk E   9 PGATLCLGHHAVPNGTLVKTITDDQIEVTNATELVQSSSTGKICNNPHRILDGIDCTLIDALLGDPHCDVFQNETWDLFVERSKAFSNCYPYDVPDYASLRSLVASSGTLEFITEGFTWTGVTQNGGSNACKRGPGSGFFSRLNWLTKSGSTYPVLNVTMPNNDNFDKLYIWGVHHPSTNQEQTSLYVQASGRVTVSTRRSQQTIIPNIGSRPWVRGLSSRISIYWTIVKPGDVLVINSNGNLIAPRGYFKMRTGKSSIMRSDAPIDTCISECITPNGSIPNDKPFQNVNKITYGACPKYVKQNTLKLATGMRNVPEK 326
                                    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 F from PDB  Type:PROTEIN  Length:171
                                                                                                                                                                                                           
               SCOP domains d4fnkf_ F: Influenza hemagglutinin (stalk)                                                                                                                                  SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....................eeeeeee..eeeeeehhhhhhhhhhhhhhhhhhhhh...ee............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eee....eeee....hhhhhhhhhh...hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4fnk F   1 GLFGAIAGFIENGWEGMIDGWYGFRHQNSEGTGQAADLKSTQAAIDQINGKLNRVIEKTNEKFHQIEKEFSEVEGRIQDLEKYVEDTKIDLWSYNAELLVALENQHTIDLTDSEMNKLFEKTGRQLRENAEDMGNGCFKIYHKCDNACIESIRNGTYDHDVYRDEALNNRF 171
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170
   Legend:   → Mismatch (orange background)
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    → 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  (2, 6)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Coiled coil proteins (689)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (17, 17)

Asymmetric/Biological Unit(hide GO term definitions)

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  HEMA_I68A4 | Q91MA7
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 Related Entries

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

UniProtKB/Swiss-Prot
        HEMA_I68A4 | Q91MA7: 3sdy 3ztj 4fp8 4fqr 4fqy 4nm8 4ubd 4we4 4zcj 5k9k 5k9q 5kan 5kuy 5t6n 5thf 5umn 5vtq 5vtr 5vtu 5vtv 5vtw 5vtx 5vty 5vtz 5vu4

(-) Related Entries Specified in the PDB File

4fnl
4fp8
4fqr RELATED ID: EMD-2138 RELATED DB: EMDB RELATED ID: EMD-2139 RELATED DB: EMDB RELATED ID: EMD-2140 RELATED DB: EMDB