eF-site ID 1s6b-AB
PDB Code 1s6b
Chain A, B

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Title X-ray Crystal Structure of a Complex Formed Between Two Homologous Isoforms of Phospholipase A2 from Naja naja sagittifera: Principle of Molecular Association and Inactivation
Classification HYDROLASE
Compound Phospholipase A2 isoform 1
Source ORGANISM_SCIENTIFIC: Naja sagittifera;
Sequence A:  NTYQFKNMIQCTVPKRSWWDFADYGCYCGRGGSGTPIDDL
DRCCQVHDNCYNSAREQGGCRPKQKTYSYECKAGTLSCSG
SNNSCAATVCDCDRLAAICFAGAPYNDNNYNIDLKARCQ
B:  NRWQFKNMISCTVPSRSWWDFADYGCYCGRGGSGTPVDDL
DRCCQVHDNCYNEAEKISGCNPRFRTYSYECTAGTLTCTG
RNNACAASVCDCDRLAAICFAGAPYNDNNYNIDLQARCN
Description


Functional site

1) chain A
residue 24
type
sequence D
description BINDING SITE FOR RESIDUE CA A 401
source : AC1

2) chain A
residue 112
type
sequence N
description BINDING SITE FOR RESIDUE CA A 401
source : AC1

3) chain B
residue 24
type
sequence D
description BINDING SITE FOR RESIDUE CA A 401
source : AC1

4) chain B
residue 112
type
sequence N
description BINDING SITE FOR RESIDUE CA A 401
source : AC1

5) chain B
residue 28
type
sequence Y
description BINDING SITE FOR RESIDUE CA B 402
source : AC2

6) chain B
residue 30
type
sequence G
description BINDING SITE FOR RESIDUE CA B 402
source : AC2

7) chain B
residue 32
type
sequence G
description BINDING SITE FOR RESIDUE CA B 402
source : AC2

8) chain B
residue 49
type
sequence D
description BINDING SITE FOR RESIDUE CA B 402
source : AC2

9) chain B
residue 28
type
sequence Y
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

10) chain B
residue 29
type
sequence C
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

11) chain B
residue 30
type
sequence G
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

12) chain B
residue 45
type
sequence C
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

13) chain B
residue 48
type
sequence H
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

14) chain B
residue 49
type
sequence D
description BINDING SITE FOR RESIDUE PO4 B 501
source : AC3

15) chain A
residue 1
type
sequence N
description BINDING SITE FOR RESIDUE PO4 A 502
source : AC4

16) chain A
residue 3
type
sequence Y
description BINDING SITE FOR RESIDUE PO4 A 502
source : AC4

17) chain A
residue 65
type
sequence Q
description BINDING SITE FOR RESIDUE PO4 A 502
source : AC4

18) chain B
residue 109
type
sequence N
description BINDING SITE FOR RESIDUE PO4 A 502
source : AC4

19) chain B
residue 32
type
sequence G
description BINDING SITE FOR RESIDUE ACY B 601
source : AC5

20) chain A
residue 48
type ACT_SITE
sequence H
description ACT_SITE => ECO:0000250|UniProtKB:P14418
source Swiss-Prot : SWS_FT_FI1

21) chain A
residue 94
type ACT_SITE
sequence D
description ACT_SITE => ECO:0000250|UniProtKB:P14418
source Swiss-Prot : SWS_FT_FI1

22) chain A
residue 30
type BINDING
sequence G
description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B
source Swiss-Prot : SWS_FT_FI2

23) chain A
residue 49
type BINDING
sequence D
description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B
source Swiss-Prot : SWS_FT_FI2

24) chain A
residue 28
type BINDING
sequence Y
description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B
source Swiss-Prot : SWS_FT_FI2

25) chain A
residue 32
type BINDING
sequence G
description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B
source Swiss-Prot : SWS_FT_FI2

26) chain A
residue 44-51
type prosite
sequence CCQVHDNC
description PA2_HIS Phospholipase A2 histidine active site. CCQvHDnC
source prosite : PS00118

27) chain B
residue 44-51
type prosite
sequence CCQVHDNC
description PA2_HIS Phospholipase A2 histidine active site. CCQvHDnC
source prosite : PS00118

28) chain B
residue 90-100
type prosite
sequence VCDCDRLAAIC
description PA2_ASP Phospholipase A2 aspartic acid active site. VCDCDRLAaIC
source prosite : PS00119

29) chain A
residue 90-100
type prosite
sequence VCDCDRLAAIC
description PA2_ASP Phospholipase A2 aspartic acid active site. VCDCDRLAaIC
source prosite : PS00119


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