Chain attributes#

Chain attributes are defined in the chain attribute space (short name: c). Chain attributes may only match chain nodes.

The following chain attributes are available in NSL:

Attribute name	Short name	Possible values	Examples
chainID	`id`	integers	`c.id 1` `c.id <= 3` `c.id 2:4, 6`
formalCharge	`fc`	integers	`c.fc > 1` `c.fc 6:8`
numberOfAtoms	`nat`	integers	`c.nat < 1000` `c.nat 100:200`
numberOfCoarseGrainedAtoms	`ncga`	integers	`c.ncga < 1000` `c.ncga 100:200`
numberOfResidues	`nr`	integers	`c.nr < 100` `c.nr 40:60`
numberOfStructuralGroups	`nsg`	integers	`c.nsg < 100` `c.nsg 40:60`

chainID#

The chain.chainID attribute (short name: c.id) matches chains with specific chain ID.

Possible values: integers.

Examples:

chain.id 1 (short version: c.id 1): matches chains with chain ID equal to 1
chain.id 2:4, 6 (short version: c.id 2:4,6): matches chains with chain ID between 2 and 4 and with chain ID equal to 6

The chain.formalCharge attribute (short name: c.fc) matches chains with specific total formal charge.

Possible values: integers.

Examples:

chain.fc 1 (short version: c.fc 1): matches chains with formal charge equal to 1
chain.fc 6:8 (short version: c.fc 6:8): matches chains with formal charge between 6 and 8

The chain.numberOfAtoms attribute (short name: c.nat) matches chains with specific number of atoms.

Possible values: integers.

Examples:

chain.nat > 100 (short version: c.nat > 100): matches chains with the number of atoms more than 100
chain.nat 100:200 (short version: c.nat 100:200): matches chains with the number of atoms between 100 and 200

The chain.numberOfCoarseGrainedAtoms attribute (short name: c.ncga) matches chains with specific number of coarse-grained atoms.

Possible values: integers.

Examples:

chain.ncga > 100 (short version: c.ncga > 100): matches chains with the number of coarse-grained atoms more than 100
chain.ncga 100:200 (short version: c.ncga 100:200): matches chains with the number of coarse-grained atoms between 100 and 200

The chain.numberOfResidues attribute (short name: c.nr) matches chains with specific number of residues.

Possible values: integers.

Examples:

chain.nr > 10 (short version: c.nr > 10): matches chains with the number of residues more than 10
chain.nr 100:200 (short version: c.nr 100:200): matches chains with the number of residues between 100 and 200

The chain.numberOfStructuralGroups attribute (short name: c.nsg) matches chains with specific number of structural groups.

Possible values: integers.

Examples:

chain.nsg > 10 (short version: c.nsg > 10): matches chains with the number of structural groups more than 10
chain.nsg 100:200 (short version: c.nsg 100:200): matches chains with the number of structural groups between 100 and 200