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3K0F

Crystal structure of the phosphorylation-site double mutant T426A/T432A of the KaiC circadian clock protein

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0000287molecular_functionmagnesium ion binding
A0003677molecular_functionDNA binding
A0004674molecular_functionprotein serine/threonine kinase activity
A0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
A0005515molecular_functionprotein binding
A0005524molecular_functionATP binding
A0006355biological_processregulation of DNA-templated transcription
A0007623biological_processcircadian rhythm
A0009649biological_processentrainment of circadian clock
A0016301molecular_functionkinase activity
A0016740molecular_functiontransferase activity
A0016787molecular_functionhydrolase activity
A0016887molecular_functionATP hydrolysis activity
A0042752biological_processregulation of circadian rhythm
A0042754biological_processnegative regulation of circadian rhythm
A0042802molecular_functionidentical protein binding
A0046872molecular_functionmetal ion binding
A0048511biological_processrhythmic process
A0070297biological_processregulation of phosphorelay signal transduction system
A0106310molecular_functionprotein serine kinase activity
B0000166molecular_functionnucleotide binding
B0000287molecular_functionmagnesium ion binding
B0003677molecular_functionDNA binding
B0004674molecular_functionprotein serine/threonine kinase activity
B0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
B0005515molecular_functionprotein binding
B0005524molecular_functionATP binding
B0006355biological_processregulation of DNA-templated transcription
B0007623biological_processcircadian rhythm
B0009649biological_processentrainment of circadian clock
B0016301molecular_functionkinase activity
B0016740molecular_functiontransferase activity
B0016787molecular_functionhydrolase activity
B0016887molecular_functionATP hydrolysis activity
B0042752biological_processregulation of circadian rhythm
B0042754biological_processnegative regulation of circadian rhythm
B0042802molecular_functionidentical protein binding
B0046872molecular_functionmetal ion binding
B0048511biological_processrhythmic process
B0070297biological_processregulation of phosphorelay signal transduction system
B0106310molecular_functionprotein serine kinase activity
C0000166molecular_functionnucleotide binding
C0000287molecular_functionmagnesium ion binding
C0003677molecular_functionDNA binding
C0004674molecular_functionprotein serine/threonine kinase activity
C0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
C0005515molecular_functionprotein binding
C0005524molecular_functionATP binding
C0006355biological_processregulation of DNA-templated transcription
C0007623biological_processcircadian rhythm
C0009649biological_processentrainment of circadian clock
C0016301molecular_functionkinase activity
C0016740molecular_functiontransferase activity
C0016787molecular_functionhydrolase activity
C0016887molecular_functionATP hydrolysis activity
C0042752biological_processregulation of circadian rhythm
C0042754biological_processnegative regulation of circadian rhythm
C0042802molecular_functionidentical protein binding
C0046872molecular_functionmetal ion binding
C0048511biological_processrhythmic process
C0070297biological_processregulation of phosphorelay signal transduction system
C0106310molecular_functionprotein serine kinase activity
D0000166molecular_functionnucleotide binding
D0000287molecular_functionmagnesium ion binding
D0003677molecular_functionDNA binding
D0004674molecular_functionprotein serine/threonine kinase activity
D0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
D0005515molecular_functionprotein binding
D0005524molecular_functionATP binding
D0006355biological_processregulation of DNA-templated transcription
D0007623biological_processcircadian rhythm
D0009649biological_processentrainment of circadian clock
D0016301molecular_functionkinase activity
D0016740molecular_functiontransferase activity
D0016787molecular_functionhydrolase activity
D0016887molecular_functionATP hydrolysis activity
D0042752biological_processregulation of circadian rhythm
D0042754biological_processnegative regulation of circadian rhythm
D0042802molecular_functionidentical protein binding
D0046872molecular_functionmetal ion binding
D0048511biological_processrhythmic process
D0070297biological_processregulation of phosphorelay signal transduction system
D0106310molecular_functionprotein serine kinase activity
E0000166molecular_functionnucleotide binding
E0000287molecular_functionmagnesium ion binding
E0003677molecular_functionDNA binding
E0004674molecular_functionprotein serine/threonine kinase activity
E0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
E0005515molecular_functionprotein binding
E0005524molecular_functionATP binding
E0006355biological_processregulation of DNA-templated transcription
E0007623biological_processcircadian rhythm
E0009649biological_processentrainment of circadian clock
E0016301molecular_functionkinase activity
E0016740molecular_functiontransferase activity
E0016787molecular_functionhydrolase activity
E0016887molecular_functionATP hydrolysis activity
E0042752biological_processregulation of circadian rhythm
E0042754biological_processnegative regulation of circadian rhythm
E0042802molecular_functionidentical protein binding
E0046872molecular_functionmetal ion binding
E0048511biological_processrhythmic process
E0070297biological_processregulation of phosphorelay signal transduction system
E0106310molecular_functionprotein serine kinase activity
F0000166molecular_functionnucleotide binding
F0000287molecular_functionmagnesium ion binding
F0003677molecular_functionDNA binding
F0004674molecular_functionprotein serine/threonine kinase activity
F0004712molecular_functionprotein serine/threonine/tyrosine kinase activity
F0005515molecular_functionprotein binding
F0005524molecular_functionATP binding
F0006355biological_processregulation of DNA-templated transcription
F0007623biological_processcircadian rhythm
F0009649biological_processentrainment of circadian clock
F0016301molecular_functionkinase activity
F0016740molecular_functiontransferase activity
F0016787molecular_functionhydrolase activity
F0016887molecular_functionATP hydrolysis activity
F0042752biological_processregulation of circadian rhythm
F0042754biological_processnegative regulation of circadian rhythm
F0042802molecular_functionidentical protein binding
F0046872molecular_functionmetal ion binding
F0048511biological_processrhythmic process
F0070297biological_processregulation of phosphorelay signal transduction system
F0106310molecular_functionprotein serine kinase activity
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 801
ChainResidue
ATHR295
AGLU318
AHOH523
AATP901
BARG459

site_idAC2
Number of Residues23
DetailsBINDING SITE FOR RESIDUE ATP A 901
ChainResidue
ALYS294
ATHR295
ALEU296
AGLU318
ATRP331
AARG451
AILE472
AHOH523
AHOH541
AMG801
BALA432
BLYS457
BMET458
BARG459
BGLY460
BSER461
BTRP462
BHIS463
BLYS465
ATHR290
AGLY291
ATHR292
AGLY293

site_idAC3
Number of Residues21
DetailsBINDING SITE FOR RESIDUE ATP A 903
ChainResidue
AGLY49
ATHR50
AGLY51
ALYS52
ATHR53
ALEU54
ASER89
APHE90
AARG218
AILE239
ATHR240
AASP241
AMG521
AHOH538
BLYS224
BLEU225
BARG226
BTHR228
BSER229
BHIS230
BLYS232

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG A 521
ChainResidue
ATHR53
AASP145
AATP903

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG B 802
ChainResidue
BTHR295
BGLU318
BATP901

site_idAC6
Number of Residues21
DetailsBINDING SITE FOR RESIDUE ATP B 901
ChainResidue
BTHR290
BGLY291
BTHR292
BGLY293
BLYS294
BTHR295
BLEU296
BGLU318
BSER330
BTRP331
BARG451
BILE472
BASP474
BMG802
CLYS457
CMET458
CARG459
CSER461
CTRP462
CHIS463
CLYS465

site_idAC7
Number of Residues18
DetailsBINDING SITE FOR RESIDUE ATP B 903
ChainResidue
BGLY49
BTHR50
BGLY51
BLYS52
BTHR53
BLEU54
BSER89
BPHE90
BILE239
BASP241
BMG521
CLYS224
CLEU225
CARG226
CTHR228
CSER229
CHIS230
CLYS232

site_idAC8
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG C 803
ChainResidue
CTHR295
CGLU318
CATP901

site_idAC9
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG B 521
ChainResidue
BATP903
BTHR53
BASP145

site_idBC1
Number of Residues23
DetailsBINDING SITE FOR RESIDUE ATP C 901
ChainResidue
CTHR290
CGLY291
CTHR292
CGLY293
CLYS294
CTHR295
CLEU296
CGLU318
CSER330
CTRP331
CARG451
CILE472
CSER473
CHOH541
CMG803
DLYS457
DMET458
DARG459
DSER461
DTRP462
DHIS463
DLYS465
DHOH536

site_idBC2
Number of Residues17
DetailsBINDING SITE FOR RESIDUE ATP C 903
ChainResidue
CGLY49
CTHR50
CGLY51
CLYS52
CTHR53
CLEU54
CGLU78
CSER89
CILE239
CMG522
CHOH530
DPHE199
DLYS224
DARG226
DGLY227
DTHR228
DHIS230

site_idBC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG D 804
ChainResidue
DTHR295
DGLU319
DHOH524
DATP901

site_idBC4
Number of Residues20
DetailsBINDING SITE FOR RESIDUE ATP D 901
ChainResidue
DTHR290
DGLY291
DTHR292
DGLY293
DLYS294
DTHR295
DLEU296
DGLU318
DSER330
DTRP331
DARG451
DILE472
DSER473
DHOH524
DMG804
ELYS457
EMET458
EARG459
ESER461
EHIS463

site_idBC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG C 522
ChainResidue
CTHR53
CASP145
CATP903

site_idBC6
Number of Residues19
DetailsBINDING SITE FOR RESIDUE ATP D 903
ChainResidue
DGLY49
DTHR50
DGLY51
DLYS52
DTHR53
DLEU54
DGLU78
DSER89
DPHE90
DARG218
DILE239
DASP241
DHOH521
ELYS224
ELEU225
EARG226
ETHR228
EHIS230
ELYS232

site_idBC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG E 805
ChainResidue
ETHR295
EGLU319
EATP901
FHOH526

site_idBC8
Number of Residues23
DetailsBINDING SITE FOR RESIDUE ATP E 901
ChainResidue
ETHR290
EGLY291
ETHR292
EGLY293
ELYS294
ETHR295
ELEU296
ESER330
ETRP331
EARG451
EILE472
ESER473
EHOH553
EMG805
FLYS457
FMET458
FARG459
FGLY460
FSER461
FTRP462
FHIS463
FLYS465
FHOH526

site_idBC9
Number of Residues19
DetailsBINDING SITE FOR RESIDUE ATP E 903
ChainResidue
EGLY49
ETHR50
EGLY51
ELYS52
ETHR53
ELEU54
EGLU78
ESER89
EILE239
ETHR240
EASP241
EHOH538
FLYS224
FLEU225
FARG226
FTHR228
FSER229
FHIS230
FLYS232

site_idCC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE MG F 806
ChainResidue
FTHR295
FATP901

site_idCC2
Number of Residues22
DetailsBINDING SITE FOR RESIDUE ATP F 901
ChainResidue
ALYS457
AMET458
AARG459
AGLY460
ASER461
ATRP462
AHIS463
ALYS465
FTHR290
FGLY291
FTHR292
FGLY293
FLYS294
FTHR295
FLEU296
FGLU318
FSER330
FTRP331
FARG451
FILE472
FHOH523
FMG806

site_idCC3
Number of Residues17
DetailsBINDING SITE FOR RESIDUE ATP F 903
ChainResidue
ALYS224
ALEU225
AARG226
ATHR228
AHIS230
FGLY49
FTHR50
FGLY51
FLYS52
FTHR53
FLEU54
FGLU78
FSER89
FPHE90
FILE239
FTHR240
FASP241

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues5
DetailsACT_SITE: Proton acceptor in CI (KaiC 1) => ECO:0000305|PubMed:22304631
ChainResidueDetails
BGLU77
CGLU77
DGLU77
EGLU77
FGLU77

site_idSWS_FT_FI2
Number of Residues5
DetailsACT_SITE: Proton acceptor in CII (KaiC 2) => ECO:0000305|PubMed:22304631
ChainResidueDetails
BGLU318
CGLU318
DGLU318
EGLU318
FGLU318

site_idSWS_FT_FI3
Number of Residues125
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15304218, ECO:0000269|PubMed:16628225, ECO:0000269|PubMed:22304631, ECO:0007744|PDB:1TF7, ECO:0007744|PDB:2GBL, ECO:0007744|PDB:4DUG
ChainResidueDetails
BGLY49
BHIS230
ELYS465
FGLY49
FTHR50
FGLY51
FLYS52
FLEU54
FSER89
FLYS224
FARG226
FTHR228
BTHR240
FHIS230
FTHR240
FASP241
FTHR290
FGLY291
FTHR292
FGLY293
FLYS294
FLEU296
FTRP331
BASP241
FARG451
FLYS457
FARG459
FSER461
FHIS463
FLYS465
BTHR290
BGLY291
BTHR292
BGLY293
BLYS294
BLEU296
BTRP331
BTHR50
BARG451
BLYS457
BARG459
BSER461
BHIS463
BLYS465
CGLY49
CTHR50
CGLY51
CLYS52
BGLY51
CLEU54
CSER89
CLYS224
CARG226
CTHR228
CHIS230
CTHR240
CASP241
CTHR290
CGLY291
BLYS52
CTHR292
CGLY293
CLYS294
CLEU296
CTRP331
CARG451
CLYS457
CARG459
CSER461
CHIS463
BLEU54
CLYS465
DGLY49
DTHR50
DGLY51
DLYS52
DLEU54
DSER89
DLYS224
DARG226
DTHR228
BSER89
DHIS230
DTHR240
DASP241
DTHR290
DGLY291
DTHR292
DGLY293
DLYS294
DLEU296
DTRP331
BLYS224
DARG451
DLYS457
DARG459
DSER461
DHIS463
DLYS465
EGLY49
ETHR50
EGLY51
ELYS52
BARG226
ELEU54
ESER89
ELYS224
EARG226
ETHR228
EHIS230
ETHR240
EASP241
ETHR290
EGLY291
BTHR228
ETHR292
EGLY293
ELYS294
ELEU296
ETRP331
EARG451
ELYS457
EARG459
ESER461
EHIS463

site_idSWS_FT_FI4
Number of Residues5
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0007744|PDB:4DUG, ECO:0007744|PDB:4TL6, ECO:0007744|PDB:7DXQ
ChainResidueDetails
BTHR53
CTHR53
DTHR53
ETHR53
FTHR53

site_idSWS_FT_FI5
Number of Residues10
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15304218, ECO:0000269|PubMed:16628225, ECO:0007744|PDB:1TF7, ECO:0007744|PDB:2GBL
ChainResidueDetails
BLEU225
FMET458
BMET458
CLEU225
CMET458
DLEU225
DMET458
ELEU225
EMET458
FLEU225

site_idSWS_FT_FI6
Number of Residues5
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15304218, ECO:0000269|PubMed:16628225, ECO:0007744|PDB:1U9I, ECO:0007744|PDB:2GBL, ECO:0007744|PDB:4DUG, ECO:0007744|PDB:7DXQ
ChainResidueDetails
BTHR295
CTHR295
DTHR295
ETHR295
FTHR295

site_idSWS_FT_FI7
Number of Residues5
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15304218, ECO:0000269|PubMed:16628225
ChainResidueDetails
BGLU318
CGLU318
DGLU318
EGLU318
FGLU318

site_idSWS_FT_FI8
Number of Residues5
DetailsMOD_RES: Phosphoserine; by autocatalysis => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15347809, ECO:0000269|PubMed:15347812, ECO:0000269|PubMed:17717528, ECO:0000269|PubMed:17916691, ECO:0007744|PDB:1U9I, ECO:0007744|PDB:2GBL
ChainResidueDetails
BSEP431
CSEP431
DSEP431
ESEP431
FSEP431

site_idSWS_FT_FI9
Number of Residues5
DetailsMOD_RES: Phosphothreonine; by autocatalysis => ECO:0000255|HAMAP-Rule:MF_01836, ECO:0000269|PubMed:15304218, ECO:0000269|PubMed:15347809, ECO:0000269|PubMed:15347812, ECO:0000269|PubMed:17717528, ECO:0000269|PubMed:17916691, ECO:0007744|PDB:1U9I, ECO:0007744|PDB:2GBL
ChainResidueDetails
BALA432
CALA432
DALA432
EALA432
FALA432

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PDB entries from 2025-06-18

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