eF-site ID 1tbt-X
PDB Code 1tbt
Chain X

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Title Effect of Shuttle Location and pH Environment on H+ Transfer in Human Carbonic Anhydrase II
Classification LYASE
Compound Carbonic anhydrase II
Source Homo sapiens (Human) (CAH2_HUMAN)
Sequence X:  HHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDP
SLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGG
PLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVH
WNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDV
LDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPL
LECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVD
NWRPAQPLKNRQIKASFK
Description


Functional site

1) chain X
residue 94
type
sequence H
description BINDING SITE FOR RESIDUE ZN X 262
source : AC1

2) chain X
residue 96
type
sequence H
description BINDING SITE FOR RESIDUE ZN X 262
source : AC1

3) chain X
residue 119
type
sequence H
description BINDING SITE FOR RESIDUE ZN X 262
source : AC1

4) chain X
residue 65
type catalytic
sequence A
description 216
source MCSA : MCSA1

5) chain X
residue 95
type catalytic
sequence F
description 216
source MCSA : MCSA1

6) chain X
residue 97
type catalytic
sequence W
description 216
source MCSA : MCSA1

7) chain X
residue 107
type catalytic
sequence H
description 216
source MCSA : MCSA1

8) chain X
residue 120
type catalytic
sequence L
description 216
source MCSA : MCSA1

9) chain X
residue 200
type catalytic
sequence T
description 216
source MCSA : MCSA1

10) chain X
residue 97
type BINDING
sequence W
description BINDING => ECO:0000269|PubMed:11076507, ECO:0000269|PubMed:12499545, ECO:0000269|PubMed:1336460, ECO:0000269|PubMed:1433293, ECO:0000269|PubMed:1909891, ECO:0000269|PubMed:19583303, ECO:0000269|PubMed:3151019, ECO:0000269|PubMed:3151020, ECO:0000269|PubMed:7761440, ECO:0000269|PubMed:7803386, ECO:0000269|PubMed:7901850, ECO:0000269|PubMed:8218160, ECO:0000269|PubMed:8262987, ECO:0000269|PubMed:8331673, ECO:0000269|PubMed:8399159, ECO:0000269|PubMed:8431430, ECO:0000269|PubMed:8451242, ECO:0000269|PubMed:8482389, ECO:0000269|PubMed:8639494, ECO:0000269|PubMed:8987974, ECO:0000269|PubMed:9398308, ECO:0000269|PubMed:9865942
source Swiss-Prot : SWS_FT_FI3

11) chain X
residue 120
type BINDING
sequence L
description BINDING => ECO:0000269|PubMed:11076507, ECO:0000269|PubMed:12499545, ECO:0000269|PubMed:1336460, ECO:0000269|PubMed:1433293, ECO:0000269|PubMed:1909891, ECO:0000269|PubMed:19583303, ECO:0000269|PubMed:3151019, ECO:0000269|PubMed:3151020, ECO:0000269|PubMed:7761440, ECO:0000269|PubMed:7803386, ECO:0000269|PubMed:7901850, ECO:0000269|PubMed:8218160, ECO:0000269|PubMed:8262987, ECO:0000269|PubMed:8331673, ECO:0000269|PubMed:8399159, ECO:0000269|PubMed:8431430, ECO:0000269|PubMed:8451242, ECO:0000269|PubMed:8482389, ECO:0000269|PubMed:8639494, ECO:0000269|PubMed:8987974, ECO:0000269|PubMed:9398308, ECO:0000269|PubMed:9865942
source Swiss-Prot : SWS_FT_FI3

12) chain X
residue 65
type ACT_SITE
sequence A
description Proton donor/acceptor => ECO:0000305|PubMed:15667203, ECO:0000305|PubMed:17330962
source Swiss-Prot : SWS_FT_FI1

13) chain X
residue 8
type SITE
sequence G
description Fine-tunes the proton-transfer properties of H-64 => ECO:0000305|PubMed:17330962
source Swiss-Prot : SWS_FT_FI5

14) chain X
residue 63
type SITE
sequence G
description Fine-tunes the proton-transfer properties of H-64; involved in the binding of some activators, including histamine and L-histidine => ECO:0000269|PubMed:16214338, ECO:0000269|PubMed:9265618, ECO:0000305|PubMed:17330962
source Swiss-Prot : SWS_FT_FI6

15) chain X
residue 68
type SITE
sequence V
description Fine-tunes the proton-transfer properties of H-64; involved in the binding of some activators, including histamine and L-histidine => ECO:0000269|PubMed:16214338, ECO:0000269|PubMed:9265618, ECO:0000305|PubMed:17330962
source Swiss-Prot : SWS_FT_FI6

16) chain X
residue 3
type MOD_RES
sequence H
description Phosphoserine => ECO:0000250|UniProtKB:P27139
source Swiss-Prot : SWS_FT_FI8

17) chain X
residue 105-121
type prosite
sequence SEHTVDKKKYAAELHLV
description ALPHA_CA_1 Alpha-carbonic anhydrases signature. SEHtVdkkkYaaELHLV
source prosite : PS00162

18) chain X
residue 167
type MOD_RES
sequence I
description Phosphoserine => ECO:0007744|PubMed:24275569
source Swiss-Prot : SWS_FT_FI9

19) chain X
residue 174
type MOD_RES
sequence A
description Phosphoserine => ECO:0007744|PubMed:24275569
source Swiss-Prot : SWS_FT_FI9

20) chain X
residue 95
type BINDING
sequence F
description BINDING => ECO:0000269|PubMed:11076507, ECO:0000269|PubMed:12499545, ECO:0000269|PubMed:1336460, ECO:0000269|PubMed:1433293, ECO:0000269|PubMed:1909891, ECO:0000269|PubMed:19583303, ECO:0000269|PubMed:3151019, ECO:0000269|PubMed:3151020, ECO:0000269|PubMed:4621826, ECO:0000269|PubMed:7761440, ECO:0000269|PubMed:7803386, ECO:0000269|PubMed:7901850, ECO:0000269|PubMed:8218160, ECO:0000269|PubMed:8262987, ECO:0000269|PubMed:8331673, ECO:0000269|PubMed:8399159, ECO:0000269|PubMed:8431430, ECO:0000269|PubMed:8451242, ECO:0000269|PubMed:8482389, ECO:0000269|PubMed:8639494, ECO:0000269|PubMed:8987974, ECO:0000269|PubMed:9398308, ECO:0000269|PubMed:9865942
source Swiss-Prot : SWS_FT_FI2

21) chain X
residue 200
type BINDING
sequence T
description BINDING => ECO:0000269|PubMed:10550681, ECO:0000269|PubMed:19520834
source Swiss-Prot : SWS_FT_FI4

22) chain X
residue 93
type SITE
sequence F
description Involved in the binding of some activators, including histamine and L-histidine => ECO:0000269|PubMed:16214338, ECO:0000269|PubMed:9265618, ECO:0000305|PubMed:17330962
source Swiss-Prot : SWS_FT_FI7


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