Bioinformatics Toolbox™

atomiccomp - Calculate atomic composition of protein

Syntax

NumberAtoms = atomiccomp(SeqAA)

Arguments

SeqAA

Amino acid sequence. Enter a character string or vector of integers from the table Mapping Amino Acid Letter Codes to Integers. You can also enter a structure with the field Sequence.

Description

NumberAtoms = atomiccomp(SeqAA) counts the type and number of atoms in an amino acid sequence (SeqAA) and returns the counts in a 1-by-1 structure (NumberAtoms) with fields C, H, N, O, and S.

Examples

Get an amino acid sequence from the NCBI GenPept database.
```
rhodopsin = getgenpept('NP_000530');
```

Count the atoms in a sequence.

rhodopsinAC = atomiccomp(rhodopsin)

rhodopsinAC = 

    C: 1814
    H: 2725
    N: 423
    O: 477
    S: 25

Retrieve the number of carbon atoms in the sequence.
```
rhodopsinAC.C

ans =

        1814
```

atomiccomp - Calculate atomic composition of protein

Syntax

Arguments

Description

Examples

See Also