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1kik

SH3 Domain of Lymphocyte Specific Kinase (LCK)

Method: SOLUTION NMR Dmax: 42.3 Å Quality: REASONABLE
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1. Protein Identity and Related Structures Protein Identity & Related Structures

PROTO-ONCOGENE TYROSINE-PROTEIN KINASE LCK

Homo sapiens

UniProt P06239

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 monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count Chain A； UniProt 63–119 Fragment：SH3 DOMAIN (RESIDUES 64-120) No other associated polymer SOLUTION NMR NMR measurement conditions：pH 6.5；298 K；Ionic strength (raw mmCIF value) 20；Pressure 1 NMR measurement conditions：pH 6.5；298 K；Ionic strength (raw mmCIF value) 20；Pressure 1 NMR sample composition：1,6mM Lck unique and SH3 domains, U-15N,13C; 20 mM sodium acetate | 90% H2O/10% D2O NMR sample composition：1mM Lck unique and SH3 domains, U-15N; 20 mM sodium acetate | 90% H2O/10% D2O Resolution not provided

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 1KIK Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1BHF P56LCK SH2 DOMAIN INHIBITOR COMPLEX Deposited 1998-06-08 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 118–225（108 aa） Fragment：SH2 DOMAIN
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å
1BHH FREE P56LCK SH2 DOMAIN Deposited 1998-06-08 Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 118–225（108 aa） Fragment：SH2 DOMAIN
Chain B 123–225（103 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.90 Å
1CWD HUMAN P56LCK TYROSINE KINASE COMPLEXED WITH PHOSPHOPEPTIDE Deposited 1995-09-06 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain L 52–221（170 aa） Fragment：PHOSPHOTYROSINE RECOGNITION DOMAIN SH2
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.25 Å
1CWE HUMAN P56LCK TYROSINE KINASE COMPLEXED WITH PHOSPHOPEPTIDE Deposited 1995-09-06 Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 126–221（96 aa） Fragment：PHOSPHOTYROSINE RECOGNITION DOMAIN SH2
Chain C 126–221（96 aa） Fragment：PHOSPHOTYROSINE RECOGNITION DOMAIN SH2
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
1FBZ Structure-based design of a novel, osteoclast-selective, nonpeptide Src SH2 inhibitor with in vivo anti-resorptive activity Deposited 2000-07-17 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 123–226（104 aa） Fragment：SH2 DOMAIN
Not recorded CC1 {4-[2-ACETYLAMINO-2-(3-CARBAMOYL-2-CYCLOHEXYLMETHOXY-6,7,8,9-TETRAHYDRO-5H-BENZOCYCLOHEPTEN-5YLCARBAMOYL)-ETHYL]-2-PHOSPHONO-PHENYL}-PHOSPHONIC ACID × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.360
1FBZ Structure-based design of a novel, osteoclast-selective, nonpeptide Src SH2 inhibitor with in vivo anti-resorptive activity Deposited 2000-07-17 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 123–226（104 aa） Fragment：SH2 DOMAIN
Not recorded CC1 {4-[2-ACETYLAMINO-2-(3-CARBAMOYL-2-CYCLOHEXYLMETHOXY-6,7,8,9-TETRAHYDRO-5H-BENZOCYCLOHEPTEN-5YLCARBAMOYL)-ETHYL]-2-PHOSPHONO-PHENYL}-PHOSPHONIC ACID × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.360
1H92 SH3 domain of human Lck tyrosine kinase Deposited 2001-02-22 Different construct Different experimental conditions Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 57–119（63 aa） Fragment：SH3 DOMAIN RESIDUES 57-119
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.4；298 K；Ionic strength (raw mmCIF value) 150；Pressure 1
Resolution not provided
1IJR Crystal structure of LCK SH2 complexed with nonpeptide phosphotyrosine mimetic Deposited 2001-04-27 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 123–226（104 aa） Fragment：SH2 DOMAIN
Not recorded CC0 (4-{2-ACETYLAMINO-2-[1-(3-CARBAMOYL-4-CYCLOHEXYLMETHOXY-PHENYL)-ETHYLCARBAMOYL}-ETHYL}-2-PHOSPHONO-PHENOXY)-ACETIC ACID × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.280
1LCJ SH2 (SRC HOMOLOGY-2) DOMAIN OF HUMAN P56-LCK TYROSINE KINASE COMPLEXED WITH THE 11 RESIDUE PHOSPHOTYROSYL PEPTIDE EPQPYEEIPIYL Deposited 1994-12-12 Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 118–225（108 aa）
Mutation：INS(MET 118) No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å
1LCK SH3-SH2 DOMAIN FRAGMENT OF HUMAN P56-LCK TYROSINE KINASE COMPLEXED WITH THE 10 RESIDUE SYNTHETIC PHOSPHOTYROSYL PEPTIDE TEGQPYQPQPA Deposited 1994-12-12 Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 52–225（174 aa）
Chain B 501–508（8 aa）
Mutation：INS(MET 52) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1LKK HUMAN P56-LCK TYROSINE KINASE SH2 DOMAIN IN COMPLEX WITH THE PHOSPHOTYROSYL PEPTIDE AC-PTYR-GLU-GLU-ILE (PYEEI PEPTIDE) Deposited 1995-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 122–226（105 aa） Fragment：SH2 DOMAIN
Not recorded ACE ACETYL GROUP × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.00 Å
1LKL HUMAN P56-LCK TYROSINE KINASE SH2 DOMAIN IN COMPLEX WITH THE PHOSPHOTYROSYL PEPTIDE AC-PTYR-GLU-GLU-GLY (PYEEG PEPTIDE) Deposited 1995-11-10 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 122–225（104 aa） Fragment：SH2
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å
1Q68 Solution structure of T-cell surface glycoprotein CD4 and Proto-oncogene tyrosine-protein kinase LCK fragments Deposited 2003-08-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 6–34（29 aa） Fragment：residues 6-34
Mutation：M14L ZN ZINC ION × 1 SOLUTION NMR
NMR measurement conditions pH 5.1；298 K；Pressure ambient
NMR sample composition 0.5 mM CD4-Lck-Zn2+, U-15N,13C; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 95% H2O/5% D2O
NMR sample composition 0.5 mM CD4-Lck-Zn2+, U-15N; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 95% H2O/5% D2O
NMR sample composition 0.5 mM CD4-Lck-Zn2+; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 100% D2O
NMR sample composition 1.0 mM CD4-Lck-Cd2+; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 100% D2O
Resolution not provided
1Q69 Solution structure of T-cell surface glycoprotein CD8 alpha chain and Proto-oncogene tyrosine-protein kinase LCK fragments Deposited 2003-08-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 6–34（29 aa） Fragment：Human Lck
Mutation：M14L ZN ZINC ION × 1 SOLUTION NMR
NMR measurement conditions pH 5.1；298 K；Pressure ambient
NMR sample composition 0.5 mM CD8a-Lck-Zn2+, U-15N,13C; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 95% H2O/5% D2O
NMR sample composition 0.5 mM CD8a-Lck-Zn2+, U-15N; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 95% H2O/5% D2O
NMR sample composition 0.5 mM CD8a-Lck-Zn2+; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 100% D2O
NMR sample composition 1.0 mM CD8a-Lck-Cd2+; 20 mM acetate, 20 mM NaCl, 0.15% beta-mercaptoethanol | 100% D2O
Resolution not provided
1QPC STRUCTURAL ANALYSIS OF THE LYMPHOCYTE-SPECIFIC KINASE LCK IN COMPLEX WITH NON-SELECTIVE AND SRC FAMILY SELECTIVE KINASE INHIBITORS Deposited 1999-05-21 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 231–509（279 aa） Fragment：CATALYTIC DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；AMMONUIM SULPHATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.60 Å R-free 0.230
1QPD STRUCTURAL ANALYSIS OF THE LYMPHOCYTE-SPECIFIC KINASE LCK IN COMPLEX WITH NON-SELECTIVE AND SRC FAMILY SELECTIVE KINASE INHIBITORS Deposited 1999-05-24 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–508（279 aa） Fragment：CATALYTIC DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 STU STAUROSPORINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；AMMONIUM SULPHATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.237
1QPE STRUCTURAL ANALYSIS OF THE LYMPHOCYTE-SPECIFIC KINASE LCK IN COMPLEX WITH NON-SELECTIVE AND SRC FAMILY SELECTIVE KINASE INHIBITORS Deposited 1999-05-24 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–508（279 aa） Fragment：CATALYTIC DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 3 PP2 1-TERT-BUTYL-3-(4-CHLORO-PHENYL)-1H-PYRAZOLO[3,4-D]PYRIMIDIN-4-YLAMINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；AMMONIUM SULPHATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.254
1QPJ CRYSTAL STRUCTURE OF THE LYMPHOCYTE-SPECIFIC KINASE LCK IN COMPLEX WITH STAUROSPORINE. Deposited 1999-05-25 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–508（279 aa） Fragment：CATALYTIC DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 STU STAUROSPORINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M TRIS PH 8.5 0.25 M LI2SO4 20% POLYETHYLENE GLYCOL 6000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.267
1X27 Crystal Structure of Lck SH2-SH3 with SH2 binding site of p130Cas Deposited 2005-04-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain A 63–225（163 aa） Fragment：SH2-SH3 domain
Chain B 63–225（163 aa） Fragment：SH2-SH3 domain
Chain C 63–225（163 aa） Fragment：SH2-SH3 domain
Chain D 63–225（163 aa） Fragment：SH2-SH3 domain
Chain E 63–225（163 aa） Fragment：SH2-SH3 domain
Chain F 63–225（163 aa） Fragment：SH2-SH3 domain
Not recorded NA SODIUM ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；295 K；N-tris[hydroxymethyl]methyl-3-aminopropane-sulfonic acid, di_potasium hydrogen phosphate, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.70 Å R-free 0.317
2IIM SH3 Domain of Human Lck Deposited 2006-09-28 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 58–118（61 aa）
Not recorded ZN ZINC ION × 2 CA CALCIUM ION × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；1 uL of protein solution (protein concentration 15 mg/mL, 20 mM Tris-HCl (pH 7.5) buffer) and 1 uL reservoir solution containing 28% PEG 400, 0.1 M HEPES buffer (pH 7.5) and 0.2 M. no addtional cryoprotectant was needed, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.00 Å R-free 0.153
2IIM SH3 Domain of Human Lck Deposited 2006-09-28 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 58–118（61 aa）
Not recorded ZN ZINC ION × 1 CA CALCIUM ION × 1 PG4 TETRAETHYLENE GLYCOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；1 uL of protein solution (protein concentration 15 mg/mL, 20 mM Tris-HCl (pH 7.5) buffer) and 1 uL reservoir solution containing 28% PEG 400, 0.1 M HEPES buffer (pH 7.5) and 0.2 M. no addtional cryoprotectant was needed, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.00 Å R-free 0.153
2OF2 crystal structure of furanopyrimidine 8 bound to lck Deposited 2007-01-02 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–500（271 aa） Fragment：lck kinase domain, residues 230-500
Not recorded 547 2,3-DIPHENYL-N-(2-PIPERAZIN-1-YLETHYL)FURO[2,3-B]PYRIDIN-4-AMINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.2 M Li2SO4, 25-35% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.261
2OF4 crystal structure of furanopyrimidine 1 bound to lck Deposited 2007-01-02 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–500（271 aa） Fragment：lck kinase domain, residues 230-500
Not recorded 979 5,6-DIPHENYL-N-(2-PIPERAZIN-1-YLETHYL)FURO[2,3-D]PYRIMIDIN-4-AMINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.2 M Li2SO4, 25-35% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.296
2OFU x-ray crystal structure of 2-aminopyrimidine carbamate 43 bound to Lck Deposited 2007-01-04 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 228–500（273 aa） Fragment：Lck kinase domain, residues 229-501
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 1N9 2,6-DIMETHYLPHENYL 2-(3,5-DIMETHOXY-4-(3-(4-METHYLPIPERAZIN-1-YL)PROPOXY)PHENYLAMINO)PYRIMIDIN- 4-YL(2,4-DIMETHOXYPHENYL)CARBAMATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.2 M Li2SO4, 25-25% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.291
2OFV crystal structure of aminoquinazoline 1 bound to Lck Deposited 2007-01-04 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 226–502（277 aa） Fragment：Lck kinase domain, residues 231-497
Chain B 226–502（277 aa） Fragment：Lck kinase domain, residues 231-497
Not recorded 242 3-(2-AMINOQUINAZOLIN-6-YL)-4-METHYL-N-[3-(TRIFLUOROMETHYL)PHENYL]BENZAMIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.3 M MgAcetate, 5-12.5% PEG8000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.301
2OG8 crystal structure of aminoquinazoline 36 bound to Lck Deposited 2007-01-05 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 236–498（263 aa） Fragment：Lck kinase domain, residues 236-498
Not recorded 1N8 N-{2-[(N,N-DIETHYLGLYCYL)AMINO]-5-(TRIFLUOROMETHYL)PHENYL}-4-METHYL-3-[2-(METHYLAMINO)QUINAZOLIN-6-YL]BENZAMIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；1.0 M LiCl, 10-22.5% PEG4000, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.300
2OG8 crystal structure of aminoquinazoline 36 bound to Lck Deposited 2007-01-05 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 236–498（263 aa） Fragment：Lck kinase domain, residues 236-498
Not recorded 1N8 N-{2-[(N,N-DIETHYLGLYCYL)AMINO]-5-(TRIFLUOROMETHYL)PHENYL}-4-METHYL-3-[2-(METHYLAMINO)QUINAZOLIN-6-YL]BENZAMIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；1.0 M LiCl, 10-22.5% PEG4000, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.300
2PL0 LCK bound to imatinib Deposited 2007-04-18 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：protein kinase
Not recorded STI 4-(4-METHYL-PIPERAZIN-1-YLMETHYL)-N-[4-METHYL-3-(4-PYRIDIN-3-YL-PYRIMIDIN-2-YLAMINO)-PHENYL]-BENZAMIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；295 K；1.5 M ammonium sulfate, 100 mM HEPES pH 7.5, 1% PEG-3350, 10 mM DTT, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.80 Å R-free 0.261
2ZM1 Crystal structure of imidazo pyrazin 1 bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2008-04-10 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP residues 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KSF N-(2-chlorophenyl)-5-phenylimidazo[1,5-a]pyrazin-8-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M Sodium Cacodylate, 30% PEG8000, 5.2% MPD, pH6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.10 Å R-free 0.232
2ZM4 Crystal structure of imidazo quinoxaline 1 bound to the kinase domain of human LCK, activated form (auto-phosphorylated on TYR394) Deposited 2008-04-11 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP residues 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KSM N-(2-chloro-6-methylphenyl)-8-[(3S)-3-methylpiperazin-1-yl]imidazo[1,5-a]quinoxalin-4-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M Sodium Cacodylate, 30% PEG8000, 5.2% MPD, pH6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.274
2ZYB Crystal structure of phenylimidazo pyrazin 2 bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-01-19 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP residues 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 KSL N-(2,6-dimethylphenyl)-5-phenylimidazo[1,5-a]pyrazin-8-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M Sodium cacodylate, 30% PEG8000, pH6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.55 Å R-free 0.291
3AC1 Crystal structure of pyrazin derivative bound to the kinase domain of Human LCK, (Auto-phosphorylated on TYR394) Deposited 2009-12-28 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 KZI 5-{[(1R,2S)-2-aminocyclohexyl]amino}-3-[(3,5-dimethoxyphenyl)amino]pyrazine-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG8000, 0.2% MPD., pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.99 Å R-free 0.221
3AC2 Crystal structure of pyrazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-12-28 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 KSE 7-[(2-amino-2-methylpropyl)amino]-2-[(3,5-dimethoxyphenyl)amino]-5-methylpyrazolo[1,5-a]pyrimidine-3-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, MPD 5.2%, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.10 Å R-free 0.225
3AC3 Crystal structure of pyrazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-12-28 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 KSH 2-[(3,5-dimethoxyphenyl)amino]-5-ethyl-7-[(2R)-2-(hydroxymethyl)pyrrolidin-1-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 5.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.55 Å R-free 0.274
3AC4 Crystal structure of triazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-12-28 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KZL 5-[(2-amino-1,1-dimethylethyl)amino]-7-[(3,5-dimethoxyphenyl)amino][1,2,4]triazolo[4,3-c]pyrimidine-8-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.283
3AC5 Crystal structure of triazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-12-28 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KZM 5-{[(1R,2S)-2-aminocyclohexyl]amino}-7-[(3,5-dimethoxyphenyl)amino]-2-(3-hydroxyphenyl)[1,2,4]triazolo[1,5-c]pyrimidine-8-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.268
3AC8 Crystal structure of pyrazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2009-12-29 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 KSK 7-[(2-amino-2-methylpropyl)amino]-5-cyclopropyl-2-[(3,5-dimethoxyphenyl)amino]pyrazolo[1,5-a]pyrimidine-3-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.318
3ACJ Crystal structure of imidazo pyrimidine derivative bound to the kinase domain of human LCK, (Auto-phosphorylated on TYR394) Deposited 2010-01-05 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KSS 7-(3,4-dimethoxyphenyl)-5-(ethylsulfanyl)imidazo[1,2-c]pyrimidine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.247
3ACK Crystal structure of Pyrrolo pyrazine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2010-01-05 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：UNP RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KSR 6-(5-methoxy-1-methyl-1H-indol-3-yl)-5H-pyrrolo[2,3-b]pyrazine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.60 Å R-free 0.265
3AD4 Crystal Structure of Methoxy Benzofuran Derivative bound to the Kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2010-01-14 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 KBM (4-chlorophenyl)(5-methoxy-1-benzofuran-2-yl)methanone × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.256
3AD5 Crystal structure of Triazolone derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2010-01-14 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 5PB 4-[4-(benzyloxy)phenyl]-5-{[2-(4-chlorophenyl)-2-oxoethyl]sulfanyl}-2,4-dihydro-3H-1,2,4-triazol-3-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.218
3AD6 Crystal structure of Pyrazolo pyrimidine derivative bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394) Deposited 2010-01-14 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：RESIDUES 225-509
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 DMS DIMETHYL SULFOXIDE × 1 KSC 7-[(cyclopropylmethyl)amino]-2-[(4-methoxyphenyl)amino]-5-methylpyrazolo[1,5-a]pyrimidine-3-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M (NH4)2SO4, 0.1M SODIUM CACODYLATE, 30% PEG 8000, 0.2% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.15 Å R-free 0.270
3B2W Crystal structure of pyrimidine amide 11 bound to Lck Deposited 2007-10-19 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 226–502（277 aa） Fragment：Lck kinase domain: Residues 226-502
Not recorded 9NH N-[5-({[2-fluoro-3-(trifluoromethyl)phenyl]amino}carbonyl)-2-methylphenyl]-4-methoxy-2-[(4-piperazin-1-ylphenyl)amino]pyrimidine-5-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；1.0 M LiCl, 20% PEG 6000, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.308
3BYM X-ray co-crystal structure aminobenzimidazole triazine 1 bound to Lck Deposited 2008-01-16 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–501（272 aa） Fragment：kinase domain
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 AM0 N-phenyl-1-{4-[(3,4,5-trimethoxyphenyl)amino]-1,3,5-triazin-2-yl}-1H-benzimidazol-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.2 M Li2SO4, 25-35% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.274
3BYO X-Ray co-crystal structure of 2-amino-6-phenylpyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one 25 bound to Lck Deposited 2008-01-16 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 231–501（271 aa） Fragment：kinase domain
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 AM9 6-(2,6-dimethylphenyl)-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.2 M Li2SO4, 25-35% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.259
3BYS co-crystal structure of Lck and aminopyrimidine amide 10b Deposited 2008-01-16 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–501（277 aa） Fragment：kinase domain
Not recorded AM5 4-methyl-N~3~-(2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimidin-5-yl)-N~1~-[3-(trifluoromethyl)phenyl]benzene-1,3-dicarboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.2 M Sodium Citrate, 20%(v/v) Isopropanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.284
3BYU co-crystal structure of Lck and aminopyrimidine reverse amide 23 Deposited 2008-01-16 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–501（277 aa） Fragment：kinase domain
Not recorded AM6 2-methyl-N-{4-methyl-3-[(2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimidin-5-yl)carbamoyl]phenyl}-3-(trifluoromethyl)benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.2 M Sodium Citrate, 20% (v/v) Isopropanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.278
3KMM Structure of human LCK kinase with a small molecule inhibitor Deposited 2009-11-10 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 229–509（281 aa） Fragment：PROTEIN TYROSINE KINASE DOMAIN (RESIDUES 229-509)
Mutation：Y505F Non-standard monomer：Yes (specific site not provided by mmCIF) LHL 3-(2,6-dichlorophenyl)-7-({4-[2-(diethylamino)ethoxy]phenyl}amino)-1-methyl-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；1.8-2.5M AMMONIUM SULFATE, 0.1M BISTRIS, PH6.5,VAPOR DIFFUSION, SITTING DROP, 277 DEG K, PROTEIN STOCK AT 1.5 MG/ML
Resolution 2.80 Å R-free 0.223
3KXZ The complex crystal structure of LCK with a probe molecule w259 Deposited 2009-12-04 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa） Fragment：LCK Ligand Binding Domain, Kinase domain
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 CA CALCIUM ION × 1 925 3-[7-[(3-hydroxyphenyl)amino]pyrazolo[1,5-a]pyrimidin-2-yl]-N-(1-hydroxy-2,2,6,6-tetramethyl-piperidin-4-yl)benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；298 K；20% PEG 3350, 0.2M Lithium Sulfate, 0.1M bis-tris pH 6.5 , VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.37 Å R-free 0.261
3LCK THE KINASE DOMAIN OF HUMAN LYMPHOCYTE KINASE (LCK), ACTIVATED FORM (AUTO-PHOSPHORYLATED ON TYR394) Deposited 1997-04-08 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 230–500（271 aa） Fragment：PROTEIN TYROSINE KINASE DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；PROTEIN WAS CRYSTALLIZED IN HANGING DROPS WITH 1.6 M AMMONIUM SULFATE AND 0.1 M BISTRIS-HCL (PH 6.5 @ RT) AS A WELL SOLUTION., vapor diffusion - hanging drop
Resolution 1.70 Å R-free 0.199
3MPM LCK complexed with a pyrazolopyrimidine Deposited 2010-04-27 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 237–501（265 aa） Fragment：UNP RESIDUES 237-501
Mutation：D364N 5LK 4-{(6R,7R)-7-amino-3-[3-(4-methylpiperazin-1-yl)phenyl]-6,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl}phenol × 1 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7；277 K；9.5 % PEG 8000, 0.1 M HEPES PH 7.0, 7% ETHYLENEGLYCOL, VAPOR DIFFUSION, temperature 277K
Resolution 1.95 Å R-free 0.213
4C3F Structure of Lck in complex with a compound discovered by Virtual Fragment Linking Deposited 2013-08-23 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 237–501（265 aa） Fragment：KINASE DOMAIN, RESIDUES 237-501
Mutation：YES 7KW N-phenyl-4-(5-phenyl-1H-pyrazol-4-yl)pyrimidin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 277 K；16 % PEG 8000, 0.1 M NA CACODYLATE PH 6.5, 0.2 M MG ACETATE, 4 C
Resolution 1.72 Å R-free 0.220
4D8K Crystal structure of a SH3-SH2 domains of a lymphocyte-specific protein tyrosine kinase (LCK) from Homo sapiens at 2.36 A resolution Deposited 2012-01-10 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 53–226（174 aa） Fragment：UNP residues 53-226
Not recorded SO4 SULFATE ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；277 K；1.5M lithium sulfate, 0.1M HEPES pH 7.5, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 2.36 Å R-free 0.251
5MTM Monobody Mb(Lck_3) bound to Lck-SH2 domain Deposited 2017-01-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 118–231（114 aa）
Not recorded ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；291 K；0.1M MES pH6.5, 15 % PEG 20000
Resolution 2.40 Å R-free 0.257
5MTN Monobody Mb(Lck_1) bound to Lck-Sh2 Deposited 2017-01-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 118–231（114 aa）
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0,2M Lithium sulfate / 0.1M TRIS pH8.5 / 10% PEG8K + 10%PEG1K
Resolution 2.85 Å R-free 0.265
6PDJ Tyrosine-protein kinase LCK bound to Compound 11 Deposited 2019-06-19 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 225–509（285 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) ODJ N-{4-[(6-methoxypyrazolo[1,5-a]pyridine-3-carbonyl)amino]-3-methylphenyl}-1-methyl-1H-indazole-3-carboxamide × 1 CXS 3-CYCLOHEXYL-1-PROPYLSULFONIC ACID × 1 SO4 SULFATE ION × 2 NI NICKEL (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 10.5；291 K；1.5 M ammonium sulfate, 120 mM lithium chloride, 10 mM nickel(II) chloride, 100 mM CAPS pH 10.5
Resolution 1.81 Å R-free 0.217
8X2P The Crystal Structure of LCK from Biortus. Deposited 2023-11-10 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 119–226（108 aa）
Not recorded CL CHLORIDE ION × 1 EDO 1,2-ETHANEDIOL × 1 PG4 TETRAETHYLENE GLYCOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；277 K；(PEGsII-A10) 0.1M MgCl2, 0.1M MES pH6.5, 30% PEG 400
Resolution 1.40 Å R-free 0.202
8X2P The Crystal Structure of LCK from Biortus. Deposited 2023-11-10 Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 119–226（108 aa）
Not recorded EDO 1,2-ETHANEDIOL × 1 PGE TRIETHYLENE GLYCOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；277 K；(PEGsII-A10) 0.1M MgCl2, 0.1M MES pH6.5, 30% PEG 400
Resolution 1.40 Å R-free 0.202

54 other PDB entries and 58 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name LCK_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–57； UniProt 63–119

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 1kik

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1kik
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1kik
Deposition date deposition_date2001-12-03
Structure title titleSH3 Domain of Lymphocyte Specific Kinase (LCK)
Keywords keywordsSH3 DOMAIN, TYROSINE KINASE, SIGNAL TRANSDUCTION, LCK, TRANSFERASE; TRANSFERASE
Experimental Method methodSOLUTION NMR
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier10.34 Å
Radius of gyration Rg (electron density) rg_electron9.96 Å
Forward intensity I(0) i0351425000.00
Molecular weight molecular_weight160030.0 kDa
Excluded volume excluded_volume199950 ų
Envelope volume envelope_volume9802 ų
Hydration-shell volume shell_volume8016 ų
Envelope diameter envelope_diameter37.9 Å
Shell Rg shell_rg16.03 Å
Envelope Rg envelope_rg11.05 Å
Shape Rg shape_rg9.93 Å
Total Rg total_rg10.17 Å
Total atoms total_atoms22125
Residues n_residues1425
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax42.3 Å
Rg (real space) rg_real10.24 Å
Rg uncertainty (real space) rg_real_error0.47 Å
I(0) (real space) i0_real3.5140e+08
I(0) uncertainty (real space) i0_real_error3.8970e+06
Rg (reciprocal space) rg_reciprocal10.25 Å
I(0) (reciprocal space) i0_reciprocal351400000.0000
Solution quality estimate total_estimate0.7391
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary14.4 Å
Skewness Skewness skewness-0.042
Kurtosis Kurtosis kurtosis-0.224
Angular range angular_range— – 0.5000 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha104600.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.225; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.933; Smooth: 0.997
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (1)

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7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1kika_
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.2 — SH3-domain
Family Family familyb.34.2.1 — SH3-domain

CATH v4.4 (1 domains)

Domain ID domain_id1kikA00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily40 — SH3 Domains
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8. Citations (1)

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9. Files and Curves (10)