1qvi Summary

pdbe.org/1qvi
spacer

Crystal structure of scallop myosin S1 in the pre-power stroke state to 2.6 Angstrom resolution: flexibility and function in the head

The structure was published by Gourinath, S., Himmel, D.M., Brown, J.H., Reshetnikova, L., Szent-Gyorgyi, A.G., and Cohen, C., in 2003 in a paper entitled "Crystal structure of scallop Myosin s1 in the pre-power stroke state to 2.6 a resolution: flexibility and function in the head." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.54 Å and deposited in 2003.

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

This PDB entry contains a complex of 3 biomacromolecules, namely Myosin heavy chain, striated muscle, Myosin regulatory light chain, striated adductor muscle, and Myosin essential light chain, striated adductor muscle.

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 most likely forms heterotrimers.

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 Myosin heavy chain, striated muscle P24733 (1-840) (MYS_ARGIR)search Argopecten irradianssearch < 90% 840 95%
Y Myosin regulatory light chain, striated adductor muscle P13543 (2-157) (MLR_ARGIR)search Argopecten irradianssearch 92% 156 90%
Z Myosin essential light chain, striated adductor muscle P07291 (2-157) (MLE_ARGIR)search Argopecten irradianssearch 95% 156 99%


This entry contains 3 unique UniProt proteins:

UniProt accession Name Organism PDB
P24733 (1 - 840) Myosin heavy chain, striated muscle Argopecten irradians
P13543 (2 - 157) Myosin regulatory light chain, striated adductor muscle Argopecten irradians
P07291 (2 - 157) Myosin essential light chain, striated adductor muscle Argopecten irradians

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A Myosin S1 fragment, N-terminal domainsearch, Motor proteinssearch Myosin head (motor domain)search, IQ calmodulin-binding motifsearch, Myosin N-terminal SH3-like domainsearch
Y (P13543) Calmodulin-likesearch EF-handsearch PF00036: EF handsearch
Z (P07291) Calmodulin-likesearch EF-handsearch

Chain ID Molecular function (GO) Cellular component (GO)
A (P24733) ATP bindingsearch motor activitysearch myosin complexsearch
Y (P13543) calcium ion bindingsearch metal ion bindingsearch myosin complexsearch
Z (P07291) calcium ion bindingsearch myosin complexsearch

Chain InterPro annotation
A IQ motif, EF-hand binding sitesearch Myosin head, motor domainsearch Myosin, N-terminal, SH3-likesearch Myosin-like IQ motif-containing domainsearch P-loop containing nucleoside triphosphate hydrolasesearch
Y EF-hand domainsearch EF-hand domain pairsearch EF-Hand 1, calcium-binding sitesearch
Z EF-hand domainsearch EF-hand domain pairsearch