eF-site ID 5cox-A
PDB Code 5cox
Chain A

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Title UNINHIBITED MOUSE CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2)
Classification OXIDOREDUCTASE
Compound CYCLOOXYGENASE-2
Source (PGH2_MOUSE)
Sequence A:  ANPCCSNPCQNRGECMSTGFDQYKCDCTRTGFYGENCTTP
EFLTRIKLLLKPTPNTVHYILTHFKGVWNIVNNIPFLRSL
IMKYVLTSRSYLIDSPPTYNVHYGYKSWEAFSNLSYYTRA
LPPVADDCPTPMGVKGNKELPDSKEVLEKVLLRREFIPDP
QGSNMMFAFFAQHFTHQFFKTDHKRGPGFTRGLGHGVDLN
HIYGETLDRQHKLRLFKDGKLKYQVIGGEVYPPTVKDTQV
EMIYPPHIPENLQFAVGQEVFGLVPGLMMYATIWLREHQR
VCDILKQEHPEWGDEQLFQTSKLILIGETIKIVIEDYVQH
LSGYHFKLKFDPELLFNQQFQYQNRIASEFNTLYHWHPLL
PDTFNIEDQEYSFKQFLYNNSILLEHGLTQFVESFTRQIA
GRVAGGRNVPIAVQAVAKASIDQSREMKYQSLNEYRKRFS
LKPYTSFEELTGEKEMAAELKALYSDIDVMELYPALLVEK
PRPDAIFGETMVELGAPFSLKGLMGNPICSPQYWKPSTFG
GEVGFKIINTASIQSLICNNVKGCPFTSFNVQ
Description


Functional site

1) chain A
residue 385
type
sequence Y
description TYR 385 IS BELIEVED TO BE THE AMINO ACID THAT ABSTRACTS A HYDROGEN ATOM FROM THE SUBSTRATE. IT IS LOCATED CLOSE TO THE HEME. A TYROSINE RADICAL IS FORMED DURING THE COURSE OF THE REACTION.
source : CAT

2) chain A
residue 530
type
sequence S
description SER 530 IS ACETYLATED BY ASPIRIN (AN ACETYL GROUP IS COVALENTLY ATTACHED TO THE PROTEIN WHEN INHIBITED WITH ASPIRIN). THE ACETYLATED SER PREVENTS THE PROPER BINDING OF THE SUBSTRATE IN THE CYCLOOXYGENASE ACTIVE SITE. IT HAS BEEN RECENTLY SHOWN, HOWEVER, THAT ACETYLATION OF CYCLOOXYGENASE-2 RESULTS IN THE FORMATION OF A DIFFERENT PRODUCT (15-HETE).
source : ACE

3) chain A
residue 388
type
sequence H
description HIS 388 IS THE AXIAL LIGAND TO THE HEME.
source : HEM

4) chain A
residue 120
type
sequence R
description ARGININE 120 IS BELIEVED TO ANCHOR THE CARBOXYLATE OF THE SUBSTRATE BY FORMING AN ION-PAIR.
source : SUB

5) chain A
residue 203
type catalytic
sequence Q
description 37
source MCSA : MCSA1

6) chain A
residue 207
type catalytic
sequence H
description 37
source MCSA : MCSA1

7) chain A
residue 384
type catalytic
sequence L
description 37
source MCSA : MCSA1

8) chain A
residue 385
type catalytic
sequence Y
description 37
source MCSA : MCSA1

9) chain A
residue 388
type catalytic
sequence H
description 37
source MCSA : MCSA1

10) chain A
residue 526
type catalytic
sequence G
description 37
source MCSA : MCSA1

11) chain A
residue 530
type catalytic
sequence S
description 37
source MCSA : MCSA1

12) chain A
residue 207
type ACT_SITE
sequence H
description Proton acceptor => ECO:0000255|PROSITE-ProRule:PRU00298, ECO:0000269|PubMed:20463020
source Swiss-Prot : SWS_FT_FI1

13) chain A
residue 385
type ACT_SITE
sequence Y
description For cyclooxygenase activity => ECO:0000269|PubMed:20463020
source Swiss-Prot : SWS_FT_FI2

14) chain A
residue 530
type SITE
sequence S
description Aspirin-acetylated serine
source Swiss-Prot : SWS_FT_FI5

15) chain A
residue 144
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:10811226, ECO:0000269|PubMed:12925531, ECO:0000269|PubMed:20463020, ECO:0000269|PubMed:20810665, ECO:0000269|PubMed:21467029, ECO:0000269|PubMed:21489986, ECO:0000269|PubMed:8349699, ECO:0000269|PubMed:8967954, ECO:0007744|PDB:1CVU, ECO:0007744|PDB:1CX2, ECO:0007744|PDB:1DDX, ECO:0007744|PDB:1PXX, ECO:0007744|PDB:3HS5, ECO:0007744|PDB:3HS6, ECO:0007744|PDB:3HS7, ECO:0007744|PDB:3KRK, ECO:0007744|PDB:3LN0, ECO:0007744|PDB:3LN1, ECO:0007744|PDB:3MDL, ECO:0007744|PDB:3MQE, ECO:0007744|PDB:3NT1, ECO:0007744|PDB:3NTB, ECO:0007744|PDB:3NTG, ECO:0007744|PDB:3OLT, ECO:0007744|PDB:3OLU, ECO:0007744|PDB:3PGH, ECO:0007744|PDB:3QH0, ECO:0007744|PDB:3QMO, ECO:0007744|PDB:3TZI, ECO:0007744|PDB:4COX, ECO:0007744|PDB:4E1G, ECO:0007744|PDB:4FM5, ECO:0007744|PDB:4M10, ECO:0007744|PDB:4M11, ECO:0007744|PDB:4OTJ, ECO:0007744|PDB:4OTY, ECO:0007744|PDB:4PH9, ECO:0007744|PDB:4RRW, ECO:0007744|PDB:4RRX, ECO:0007744|PDB:4RRY, ECO:0007744|PDB:4RRZ, ECO:0007744|PDB:4RS0, ECO:0007744|PDB:4RUT, ECO:0007744|PDB:4Z0L, ECO:0007744|PDB:5COX, ECO:0007744|PDB:5FDQ, ECO:0007744|PDB:5JVY, ECO:0007744|PDB:5JVZ, ECO:0007744|PDB:5JW1, ECO:0007744|PDB:6COX
source Swiss-Prot : SWS_FT_FI10

16) chain A
residue 410
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:10811226, ECO:0000269|PubMed:12925531, ECO:0000269|PubMed:20463020, ECO:0000269|PubMed:20810665, ECO:0000269|PubMed:21467029, ECO:0000269|PubMed:21489986, ECO:0000269|PubMed:8349699, ECO:0000269|PubMed:8967954, ECO:0007744|PDB:1CVU, ECO:0007744|PDB:1CX2, ECO:0007744|PDB:1DDX, ECO:0007744|PDB:1PXX, ECO:0007744|PDB:3HS5, ECO:0007744|PDB:3HS6, ECO:0007744|PDB:3HS7, ECO:0007744|PDB:3KRK, ECO:0007744|PDB:3LN0, ECO:0007744|PDB:3LN1, ECO:0007744|PDB:3MDL, ECO:0007744|PDB:3MQE, ECO:0007744|PDB:3NT1, ECO:0007744|PDB:3NTB, ECO:0007744|PDB:3NTG, ECO:0007744|PDB:3OLT, ECO:0007744|PDB:3OLU, ECO:0007744|PDB:3PGH, ECO:0007744|PDB:3QH0, ECO:0007744|PDB:3QMO, ECO:0007744|PDB:3TZI, ECO:0007744|PDB:4COX, ECO:0007744|PDB:4E1G, ECO:0007744|PDB:4M10, ECO:0007744|PDB:4M11, ECO:0007744|PDB:4OTJ, ECO:0007744|PDB:4OTY, ECO:0007744|PDB:4PH9, ECO:0007744|PDB:4RRW, ECO:0007744|PDB:4RRX, ECO:0007744|PDB:4RRY, ECO:0007744|PDB:4RRZ, ECO:0007744|PDB:4RS0, ECO:0007744|PDB:4RUT, ECO:0007744|PDB:4Z0L, ECO:0007744|PDB:5COX, ECO:0007744|PDB:5FDQ, ECO:0007744|PDB:5JVY, ECO:0007744|PDB:5JVZ, ECO:0007744|PDB:5JW1, ECO:0007744|PDB:6COX
source Swiss-Prot : SWS_FT_FI11

17) chain A
residue 540
type MOD_RES
sequence C
description S-nitrosocysteine => ECO:0000250|UniProtKB:P35354
source Swiss-Prot : SWS_FT_FI7

18) chain A
residue 579
type MOD_RES
sequence S
description O-acetylserine; by SPHK1 => ECO:0000269|PubMed:29662056
source Swiss-Prot : SWS_FT_FI8

19) chain A
residue 68
type CARBOHYD
sequence N
description N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:10811226, ECO:0000269|PubMed:12925531, ECO:0000269|PubMed:20463020, ECO:0000269|PubMed:20810665, ECO:0000269|PubMed:21467029, ECO:0000269|PubMed:21489986, ECO:0000269|PubMed:8349699, ECO:0000269|PubMed:8967954, ECO:0007744|PDB:1CVU, ECO:0007744|PDB:1CX2, ECO:0007744|PDB:1DDX, ECO:0007744|PDB:1PXX, ECO:0007744|PDB:3HS5, ECO:0007744|PDB:3HS6, ECO:0007744|PDB:3HS7, ECO:0007744|PDB:3KRK, ECO:0007744|PDB:3LN0, ECO:0007744|PDB:3LN1, ECO:0007744|PDB:3MDL, ECO:0007744|PDB:3MQE, ECO:0007744|PDB:3NT1, ECO:0007744|PDB:3NTB, ECO:0007744|PDB:3PGH, ECO:0007744|PDB:3QH0, ECO:0007744|PDB:3QMO, ECO:0007744|PDB:3TZI, ECO:0007744|PDB:4COX, ECO:0007744|PDB:4E1G, ECO:0007744|PDB:4M10, ECO:0007744|PDB:4M11, ECO:0007744|PDB:4OTJ, ECO:0007744|PDB:4OTY, ECO:0007744|PDB:4PH9, ECO:0007744|PDB:4RRW, ECO:0007744|PDB:4RRX, ECO:0007744|PDB:4RRY, ECO:0007744|PDB:4RRZ, ECO:0007744|PDB:4RS0, ECO:0007744|PDB:4RUT, ECO:0007744|PDB:4Z0L, ECO:0007744|PDB:5COX, ECO:0007744|PDB:5FDQ, ECO:0007744|PDB:5JVY, ECO:0007744|PDB:5JVZ, ECO:0007744|PDB:5JW1, ECO:0007744|PDB:6COX
source Swiss-Prot : SWS_FT_FI9

20) chain A
residue 120
type BINDING
sequence R
description BINDING => ECO:0000269|PubMed:20463020, ECO:0007744|PDB:3KRK
source Swiss-Prot : SWS_FT_FI3

21) chain A
residue 355
type BINDING
sequence Y
description BINDING => ECO:0000269|PubMed:20463020, ECO:0007744|PDB:3KRK
source Swiss-Prot : SWS_FT_FI3

22) chain A
residue 388
type BINDING
sequence H
description axial binding residue => ECO:0000269|PubMed:12925531, ECO:0000269|PubMed:20463020, ECO:0000269|PubMed:20810665, ECO:0000269|PubMed:21489986, ECO:0000269|PubMed:8967954, ECO:0007744|PDB:1CX2, ECO:0007744|PDB:1PXX, ECO:0007744|PDB:3LN0, ECO:0007744|PDB:3LN1, ECO:0007744|PDB:3MQE, ECO:0007744|PDB:3NTB, ECO:0007744|PDB:3NTG, ECO:0007744|PDB:3PGH, ECO:0007744|PDB:4COX, ECO:0007744|PDB:4FM5, ECO:0007744|PDB:4M10, ECO:0007744|PDB:4M11, ECO:0007744|PDB:4PH9, ECO:0007744|PDB:5COX, ECO:0007744|PDB:6COX
source Swiss-Prot : SWS_FT_FI4


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