2zm1 Summary

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Crystal structure of imidazo pyrazin 1 bound to the kinase domain of human LCK, (auto-phosphorylated on TYR394)

The structure was published by Ozawa, T., Tsuji, E., Ozawa, M., et al., Nishimura, T., Kobayashi, S., and Okazaki, K., in 2008 in a paper entitled "The importance of CH/pi hydrogen bonds in rational drug design: An ab initio fragment molecular orbital study to leukocyte-specific protein tyrosine (LCK) kinase" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.1 Å and deposited in 2008.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of Proto-oncogene tyrosine-protein kinase LCK. This molecule has the UniProt identifier P06239 (LCK_HUMAN)search. The sample contained 285 residues which is < 90% of the natural sequence. Out of 285 residues 271 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Proto-oncogene tyrosine-protein kinase LCK P06239 (225-509) (LCK_HUMAN)search Homo sapienssearch < 90% 285 95%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P06239 (225 - 509) Proto-oncogene tyrosine-protein kinase LCK Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A Protein kinases, catalytic subunitsearch Phosphorylase Kinase; domain 1search, Transferase(Phosphotransferase) domain 1search Protein tyrosine kinasesearch

Chain ID Molecular function (GO) Biological process (GO)
A (P06239) protein kinase activitysearch protein tyrosine kinase activitysearch ATP bindingsearch transferase activity, transferring phosphorus-containing groupssearch protein phosphorylationsearch

Chain InterPro annotation
A Protein kinase domainsearch Serine-threonine/tyrosine-protein kinase catalytic domainsearch Tyrosine-protein kinase, active sitesearch Protein kinase-like domainsearch Protein kinase, ATP binding sitesearch Tyrosine-protein kinase, catalytic domainsearch