Flex-Protein Ligand Minimization

This cube minimizes ligand conformers in a flexible protein active site.

Input design units are read from the intake port, and records wth optimized design units are emitted through the success port.

Related Cubes

Calculation Parameters

  • CPUs (cpu_count) type: integer: The number of CPUs to run this cube with
    Default: 1 , Min: 1, Max: 128
  • Cube Metrics (cube_metrics) type: string: Set of metrics to be collected

    Choices: cpu, disk, memory, network
  • Non bonded interactions cutoff (cutoff) type: decimal: Non-bonded VdW and Coulomb interactions cutoff
    Default: 40.0 , Max: 100.0
  • Temporary Disk Space (MiB) (disk_space) type: decimal: The minimum amount of disk space in MiB (1048576 B) this cube requires. Due to overhead, request a couple hundred MiB more than required.
    Default: 5120.0 , Min: 128.0, Max: 8589934592
  • Force Field (ff_type) type: string: Built-in force field model to be used.
    Default: ff14sb_sage
    Choices: ff14sb_sage, ff14sb_parsley, mmff94, mmff94s, mmff_amber, mmffs_amber
  • Flexibility range (flex_range) type: decimal: Portion of the protein to be considered flexible, measured as the distance between initial positions of the ligand atoms and the protein atoms
    Default: 2.0 , Min: 0.5, Max: 10.0
  • GPUs (gpu_count) type: integer: The number of GPUs to run this cube with
    Default: 0 , Max: 16
  • Instance Tags (instance_tags) type: string: Only run on machines with matching tags (comma separated)
    Default: “”
  • Instance Type (instance_type) type: string: The type of instance that this cube needs to be run on
  • Max Backlog Wait (max_backlog_wait) type: integer: The max time (in seconds) that a cube will be backlogged on a group before being re-evaluated
    Default: 600 , Min: 300
  • Memory (MiB) (memory_mb) type: decimal: The minimum amount of memory in MiBs (1048576 B) this cube requires. Due to overhead, request a couple hundred MiB more than required.
    Default: 1800 , Min: 256.0, Max: 8589934592
  • Metric Period (metric_period) type: decimal: How often to sample metrics, in seconds
    Default: 60
    Choices: 1, 5, 10, 30, 60, 120, 180, 240, 300, Min: 1, Max: 300
  • Optimization type (opt_type) type: string: Type of optimization to perform
    Default: poseCartesian
    Choices: cartesian, poseCartesian
  • Thread limit per CPU (pids_per_cpu_limit) type: integer: The number of threads per CPU
    Default: 32
  • Components to keep as the ‘protein’ (protein_mask) type: string: DU components to use as the ‘protein’.
    Default: [‘protein’, ‘nucleic’, ‘cofactors’, ‘solvent’, ‘other_ligands’, ‘other_cofactors’]
    Choices: protein, nucleic, ligand, solvent, metals, counter_ions, lipids, packing_residues, sugars, undefined, cofactors, excipients, polymers, post_translational, other_proteins, other_nucleics, other_ligands, other_cofactors
  • Shared Memory (MiB) (shared_memory_mb) type: decimal: The amount of shared memory to allow a container to address
    Default: 64
  • Solvent model (solvent_model) type: string: Solvent model to be used
    Default: Gas-phase
    Choices: Gas-phase, Sheffield, PB
  • Spot policy (spot_policy) type: string: Control cube placement on spot market instances
    Default: Prohibited
    Choices: Allowed, Preferred, NotPreferred, Prohibited, Required

Field parameters

  • Energy field (energy_field) type: Field Type: Float: Protein-ligand intermolecular energy
    Default: Energy (kcal/mol)
  • Extended Log Field (ext_log_field) type: Field Type: StringVec: Message extended log field
    Default: Extended Log Field
  • None (in_du_field) type: Field Type: Chem.DesignUnit:Record:
    Default: designunit
  • Log Field (log_field) type: Field Type: String: The field to store messages to floe report
    Default: Log Field
  • None (out_du_field) type: Field Type: Chem.DesignUnit:Record:
    Default: designunit

Hardware Parameters

Machine hardware requirements
  • Memory (MiB) (memory_mb) type: decimal: The minimum amount of memory in MiBs (1048576 B) this cube requires. Due to overhead, request a couple hundred MiB more than required.
    Default: 1800 , Min: 256.0, Max: 8589934592
  • Shared Memory (MiB) (shared_memory_mb) type: decimal: The amount of shared memory to allow a container to address
    Default: 64
  • Thread limit per CPU (pids_per_cpu_limit) type: integer: The number of threads per CPU
    Default: 32
  • Max Backlog Wait (max_backlog_wait) type: integer: The max time (in seconds) that a cube will be backlogged on a group before being re-evaluated
    Default: 600 , Min: 300
  • Temporary Disk Space (MiB) (disk_space) type: decimal: The minimum amount of disk space in MiB (1048576 B) this cube requires. Due to overhead, request a couple hundred MiB more than required.
    Default: 5120.0 , Min: 128.0, Max: 8589934592
  • GPUs (gpu_count) type: integer: The number of GPUs to run this cube with
    Default: 0 , Max: 16
  • CPUs (cpu_count) type: integer: The number of CPUs to run this cube with
    Default: 1 , Min: 1, Max: 128
  • Instance Type (instance_type) type: string: The type of instance that this cube needs to be run on
  • Spot policy (spot_policy) type: string: Control cube placement on spot market instances
    Default: Prohibited
    Choices: Allowed, Preferred, NotPreferred, Prohibited, Required
  • Instance Tags (instance_tags) type: string: Only run on machines with matching tags (comma separated)
    Default: “”

Metrics Parameters

Cube Metric Parameters
  • Metric Period (None) type: decimal: How often to sample metrics, in seconds
    Default: 60
    Choices: 1, 5, 10, 30, 60, 120, 180, 240, 300, Min: 1, Max: 300
  • Cube Metrics (None) type: string: Set of metrics to be collected

    Choices: cpu, disk, memory, network

Parallel Flex-Protein Ligand Minimization

The parallel version adds these extra parameters.

  • Number of messages to distribute at a time (item_count) type: integer: The maximum number of messages to bundle together for a parallel cube.
    Default: 1 , Min: 1, Max: 65535
  • Maximum Failures (max_failures) type: integer: The maximum number of times to attempt processing a work item
    Default: 10 , Min: 1, Max: 100
  • Autoscale this Cube (autoscale) type: boolean: If True, let Orion manage the parallelism of this Cube
    Default: True
  • Maximum number of Cubes (max_parallel) type: integer: The maximum number of concurrently running copies of this Cube
    Default: 1000 , Min: 1
  • Minimum number of Cubes (min_parallel) type: integer: The minimum number of concurrently running copies of this Cube
    Default: 0