Function and Biology

Crystal structure of rigor-like squid myosin S1

Source organism: Todarodes pacificus
Biochemical function: calcium ion binding
Biological process: not assigned
Cellular component: myosin complex

GO terms

Biochemical function:
Biological process:
  • not assigned
Cellular component:

Sequence families

Pfam Protein families (Pfam)
PF13499
Domain description: EF-hand domain pair
Occurring in:
  1. Myosin regulatory light chain LC-2, mantle muscle

PF13405
Domain description: EF-hand domain
Occurring in:
  1. Myosin catalytic light chain LC-1, mantle muscle
The deposited structure of PDB entry 3i5g contains 1 copy of Pfam domain PF13405 (EF-hand domain) in Myosin regulatory light chain LC-2, mantle muscle. Showing 1 copy in chain B.
The deposited structure of PDB entry 3i5g contains 1 copy of Pfam domain PF13405 (EF-hand domain) in Myosin catalytic light chain LC-1, mantle muscle. Showing 1 copy in chain C.

PF00612
Domain description: IQ calmodulin-binding motif
Occurring in:
  1. Myosin heavy chain isoform A
The deposited structure of PDB entry 3i5g contains 1 copy of Pfam domain PF00612 (IQ calmodulin-binding motif) in Myosin heavy chain isoform A. Showing 1 copy in chain A.

PF00063
Domain description: Myosin head (motor domain)
Occurring in:
  1. Myosin heavy chain isoform A
The deposited structure of PDB entry 3i5g contains 1 copy of Pfam domain PF00063 (Myosin head (motor domain)) in Myosin heavy chain isoform A. Showing 1 copy in chain A.

PF02736
Domain description: Myosin N-terminal SH3-like domain
Occurring in:
  1. Myosin heavy chain isoform A
The deposited structure of PDB entry 3i5g contains 1 copy of Pfam domain PF02736 (Myosin N-terminal SH3-like domain) in Myosin heavy chain isoform A. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR001609
Domain description: Myosin head, motor domain
Occurring in:
  1. Myosin heavy chain isoform A
IPR000048
Domain description: IQ motif, EF-hand binding site
Occurring in:
  1. Myosin heavy chain isoform A
IPR011992
IPR004009
Domain description: Myosin, N-terminal, SH3-like
Occurring in:
  1. Myosin heavy chain isoform A
IPR018247
Domain description: EF-Hand 1, calcium-binding site
Occurring in:
  1. Myosin regulatory light chain LC-2, mantle muscle
IPR036961
Domain description: Kinesin motor domain superfamily
Occurring in:
  1. Myosin heavy chain isoform A
IPR027417
Domain description: P-loop containing nucleoside triphosphate hydrolase
Occurring in:
  1. Myosin heavy chain isoform A
IPR008989
Domain description: Myosin S1 fragment, N-terminal
Occurring in:
  1. Myosin heavy chain isoform A

Structure domain

CATH CATH domain
1.10.238.10
Class: Mainly Alpha
Architecture: Orthogonal Bundle
Topology: Recoverin; domain 1
Homology: EF-hand
Occurring in:
  1. Myosin regulatory light chain LC-2, mantle muscle
  2. Myosin catalytic light chain LC-1, mantle muscle
The deposited structure of PDB entry 3i5g contains 2 copies of CATH domain 1.10.238.10 (Recoverin; domain 1) in Myosin regulatory light chain LC-2, mantle muscle. Showing 2 copies in chain B.
The deposited structure of PDB entry 3i5g contains 2 copies of CATH domain 1.10.238.10 (Recoverin; domain 1) in Myosin catalytic light chain LC-1, mantle muscle. Showing 2 copies in chain C.