MAP/microtubule affinity-regulating kinase 3
Homo sapiens
State in the Current Structure
| Assembly | Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Associated Components | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|
| 1 | Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count | Chain A; UniProt 47–370 Chain B; UniProt 47–370 | Not recorded | No other associated polymer | X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;1.5M LiSO4, 100 mM HEPES pH7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K | Resolution 2.70 Å R-free 0.279 |
Other States of the Same Protein in the Database
Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.
| Other PDB | Difference from Current Entry 2QNJ | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 3FE3 Crystal structure of the kinase MARK3/Par-1: T211A-S215A double mutant Deposited 2008-11-27 | Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
41–367(327 aa)
Fragment:CATALYTIC AND UBIQUITIN-ASSOCIATED DOMAINS, UNP residues 41-367
Chain B
41–367(327 aa)
Fragment:CATALYTIC AND UBIQUITIN-ASSOCIATED DOMAINS, UNP residues 41-367
|
Mutation:T211A, S215A Mutation:T211A, S215A | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.5;277 K;100mM Hepes, 200mM calcium chloride, 15-18% PEG 3350, 5mM DTT , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
|
Resolution 1.90 Å R-free 0.233 |
| 7P1L The MARK3 Kinase Domain Bound To AA-CS-1-008 Deposited 2021-07-01 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–366(319 aa)
|
Not recorded | V5E 5-Bromo-4-N-[2-(1H-imidazol-5-yl)ethyl]-2-N-[3-(morpholin-4-ylmethyl)phenyl]pyrimidine-2,4-diamine × 1 EDO 1,2-ETHANEDIOL × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;277 K;0.1 M sodium formate pH 7.0
24% PEG3350
|
Resolution 1.95 Å R-free 0.242 |
| 7P1L The MARK3 Kinase Domain Bound To AA-CS-1-008 Deposited 2021-07-01 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
48–366(319 aa)
|
Not recorded | V5E 5-Bromo-4-N-[2-(1H-imidazol-5-yl)ethyl]-2-N-[3-(morpholin-4-ylmethyl)phenyl]pyrimidine-2,4-diamine × 1 EDO 1,2-ETHANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;277 K;0.1 M sodium formate pH 7.0
24% PEG3350
|
Resolution 1.95 Å R-free 0.242 |
| 8UOH Crystal structure of human NUAK1-MARK3 kinase domain chimera bound with small molecule inhibitor #10 Deposited 2023-10-19 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
48–370(323 aa)
Chain B
48–370(323 aa)
|
Mutation:I61L, V116I, G137K, F141Y, A146E, L72R Mutation:I61L, V116I, G137K, F141Y, A146E, L72R | EDO 1,2-ETHANEDIOL × 9 NI NICKEL (II) ION × 1 X4W (6P)-6-[(4S)-imidazo[1,2-a]pyridin-3-yl]-4-[(1R)-1-phenylethyl]-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.1;287 K;8.09 mg/mL Tray302895 fine screen F2: 0.1M HEPES pH 7.1, 0.2M MgCl, 8 (%v/v) PEG 8000; protein buffer contains: 20 mM HEPES pH 7.5, 100 mM NaCl, 5 mM BME
|
Resolution 2.15 Å R-free 0.220 |
| 8UOI Crystal structure of human NUAK1-MARK3 kinase domain chimera bound with small molecule inhibitor #65 Deposited 2023-10-19 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Mutation:I62L, V116I, G137K, F141Y, A146E, L72/71R, V205K | X3Q (7M)-7-[(4S)-imidazo[1,2-b]pyridazin-3-yl]-1-[(1R)-1-phenylethyl]-3-(piperazin-1-yl)pyrido[3,4-b]pyrazin-2(1H)-one × 1 EDO 1,2-ETHANEDIOL × 5 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.86;293 K;CID102002 (MARK3-NUAK chimera V205K), PID7361-1, 8.0 mg/ml. Tray 314126g7; JCSG_B4 screen: 9.0% (w/V) PEG 8000, 8% (V/V) ethylene glycol, 100mM HEPES free acid / sodium hydroxide pH 7.86; 2,5mM BSI109151 / UCB1705233; crystal back soaked over night with 2.5mM UCB1816405; cryo: 25% EG in soak; puck itc9-6
|
Resolution 1.80 Å R-free 0.198 |
| 8UOJ Crystal structure of human NUAK1-MARK3 kinase domain chimera bound with azepane (R)-#50 small molecule inhibitor Deposited 2023-10-19 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Mutation:I62L, V116I, G137K, F141Y, A146E, L72R Non-standard monomer:Yes (specific site not provided by mmCIF) | X5I (6M)-4-{[(2R)-azepan-2-yl]methyl}-6-[(4R)-imidazo[1,2-a]pyridin-3-yl]-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one × 1 EDO 1,2-ETHANEDIOL × 5 CL CHLORIDE ION × 1 BEZ BENZOIC ACID × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;100mM Tris base / HCl pH 7.5, 200mM Magnesium chloride, 10% (w/V) PEG8000; 2.5mM UCB1718758 (bsi109321)
|
Resolution 1.60 Å R-free 0.186 |
| 8UOK Crystal structure of human NUAK1-MARK3 (7 mutations) kinase domain chimera bound with small molecule inhibitor #31 Deposited 2023-10-19 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
48–370(323 aa)
Chain B
48–370(323 aa)
|
Mutation:I62L, V116I, G137K, F141Y, A146E, L72/71R, V205K Mutation:I62L, V116I, G137K, F141Y, A146E, L72/71R, V205K | X5N (6P)-6-[(4R)-imidazo[1,2-a]pyridin-3-yl]-4-(piperidin-4-yl)-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one × 2 EDO 1,2-ETHANEDIOL × 8 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;318327A2 (JCSG E10 FS), 100mM Bicine, pH 8.3, PEG 6000 10.6 %w/v with 2.5mM compound, 25% EG
|
Resolution 1.85 Å R-free 0.192 |
| 8UOL Crystal structure of human NUAK1-MARK3 (6 mutations) kinase domain chimera bound with small molecule inhibitor #31 Deposited 2023-10-19 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
48–370(323 aa)
Chain B
48–370(323 aa)
|
Mutation:I62L, V116I, G137K, F141Y, A146E, L72/71R Mutation:I62L, V116I, G137K, F141Y, A146E, L72/71R | X4H Narazaciclib × 2 EDO 1,2-ETHANEDIOL × 6 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;JCSG E12 condition: 0.1 M Imidazole pH 8.0, 10 (%v/v) PEG 8000, 2.5mM compound 31)
|
Resolution 1.90 Å R-free 0.211 |
| 9VFO Crystal Structure of the NUAK1-MARK3 kinase domain chimera bound with small molecule inhibitor 2-amino-N-(5-((5-chloro-4-(((3R,3aR,6R,6aR)-6-methoxyhexahydrofuro[3,2-b]furan-3-yl)oxy)pyrimidin-2-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)acetamide Deposited 2025-06-11 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Not recorded | A1ER0 N-[5-[[4-[[(3R,3aR,6R,6aR)-3-methoxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl]oxy]-5-chloranyl-pyrimidin-2-yl]amino]-2-[2-(dimethylamino)ethyl-methyl-amino]phenyl]-2-azanyl-ethanamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293.15 K;0.1M MES pH 6.5, 25% PEG 8000 and 0.2M (NH4)2SO4
|
Resolution 2.50 Å R-free 0.237 |
| 9VGR Crystal Structure of the NUAK1-MARK3 kinase domain chimera bound with small molecule inhibitor 4-((5-((5-chloro-4-(((3R,3aR,6R,6aR)-6-methoxyhexahydrofuro[3,2-b]furan-3-yl)oxy)pyrimidin-2-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)carbamoyl)-1-methyl-3H-pyrazol-1-ium-3-ide Deposited 2025-06-14 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Not recorded | A1ER9 N-[5-[[4-[[(3R,3aR,6R,6aR)-3-methoxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl]oxy]-5-chloranyl-pyrimidin-2-yl]amino]-2-[2-(dimethylamino)ethyl-methyl-amino]phenyl]-1-methyl-pyrazole-4-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293.15 K;0.1M MES pH 6.5, 25% PEG 8000 and 0.2M (NH4)2SO4
|
Resolution 2.00 Å R-free 0.197 |
| 9VIR Crystal Structure of the NUAK1-MARK3 kinase domain chimera bound with small molecule inhibitor N-(5-((5-chloro-4-(((3aS,6R,6aR)-6-methoxy-3a,5,6,6a-tetrahydrofuro[3,2-b]furan-3-yl)oxy)pyrimidin-2-yl)amino)-2-(((2R,7aR)-2-fluorotetrahydro-1H-pyrrolizin-7a(5H)-yl)methoxy)phenyl)-1-methyl-1H-pyrazole-4-carboxamide Deposited 2025-06-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Mutation:I62L/L72R/V116I/G137K/F141Y/A146E | A1ESF ~{N}-[5-[[4-[[(3~{R},3~{a}~{R},6~{a}~{S})-3-methoxy-2,3,3~{a},6~{a}-tetrahydrofuro[3,2-b]furan-6-yl]oxy]-5-chloranyl-pyrimidin-2-yl]amino]-2-[[(2~{R},8~{R})-2-fluoranyl-1,2,3,5,6,7-hexahydropyrrolizin-8-yl]methoxy]phenyl]-1-methyl-pyrazole-4-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293.15 K;0.1M MES pH 6.5, 25% PEG 8000 and 0.2M (NH4)2SO4
|
Resolution 2.80 Å R-free 0.316 |
| 9YR9 Structure of human MARK3 in complex with inhibitor Deposited 2025-10-16 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–367(320 aa)
Fragment:residues 48-367
|
Not recorded | A1CZY 3-({5-chloro-2-[2-(difluoromethoxy)-4-(4-methylpiperazin-1-yl)anilino]pyrimidin-4-yl}amino)thiophene-2-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;0.1M HEPES pH 7.0, 0.1M ammonium sulphate, 25% PEG3350
|
Resolution 2.40 Å R-free 0.253 |
| 9YR9 Structure of human MARK3 in complex with inhibitor Deposited 2025-10-16 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
48–367(320 aa)
Fragment:residues 48-367
|
Not recorded | A1CZY 3-({5-chloro-2-[2-(difluoromethoxy)-4-(4-methylpiperazin-1-yl)anilino]pyrimidin-4-yl}amino)thiophene-2-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;0.1M HEPES pH 7.0, 0.1M ammonium sulphate, 25% PEG3350
|
Resolution 2.40 Å R-free 0.253 |
| 9YSQ Structure of a human NUAK1-MARK3 kinase domain chimera in complex with inhibitor Deposited 2025-10-19 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–370(323 aa)
|
Mutation:I62L, L72R, V116I, G137K, F141Y, A146E | A1CZY 3-({5-chloro-2-[2-(difluoromethoxy)-4-(4-methylpiperazin-1-yl)anilino]pyrimidin-4-yl}amino)thiophene-2-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;0.1M HEPES pH 7.0, 0.2M magnesium formate, 17% PEG3350
|
Resolution 2.40 Å R-free 0.248 |
| 9YSQ Structure of a human NUAK1-MARK3 kinase domain chimera in complex with inhibitor Deposited 2025-10-19 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
48–370(323 aa)
|
Mutation:I62L, L72R, V116I, G137K, F141Y, A146E | A1CZY 3-({5-chloro-2-[2-(difluoromethoxy)-4-(4-methylpiperazin-1-yl)anilino]pyrimidin-4-yl}amino)thiophene-2-carboxamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;0.1M HEPES pH 7.0, 0.2M magnesium formate, 17% PEG3350
|
Resolution 2.40 Å R-free 0.248 |
| 9ZZW Structure of human MARK3 in complex with inhibitor Deposited 2026-01-08 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
48–367(320 aa)
Fragment:residues 48-367
|
Not recorded | A1C86 2-({5-chloro-2-[4-(4-ethylpiperazin-1-yl)-2-methoxyanilino]pyrimidin-4-yl}amino)benzamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;25%PEG 3350, 0.1M (NH4)2SO4, and 0.1M MES pH 6.0
|
Resolution 2.76 Å R-free 0.286 |
| 9ZZW Structure of human MARK3 in complex with inhibitor Deposited 2026-01-08 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
48–367(320 aa)
Fragment:residues 48-367
|
Not recorded | A1C86 2-({5-chloro-2-[4-(4-ethylpiperazin-1-yl)-2-methoxyanilino]pyrimidin-4-yl}amino)benzamide × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;25%PEG 3350, 0.1M (NH4)2SO4, and 0.1M MES pH 6.0
|
Resolution 2.76 Å R-free 0.286 |
13 other PDB entries and 17 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | MARK3_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 2–328; UniProt 47–370 Author chain B; PDBConstruct 2–328; UniProt 47–370 |