I have 64 characters in a 4\*4 matrix.I need to convert it into a cell array such that cell has 4 characters.For eg

```
 Consider A=[TCTGCTCTCGGTTATATACACTGCCCAGAACACGTCAACAAGGCCAGTGTATCCTTCTTTGTGT]

```

i need to get a cell array as below

```
 B={[TCTG][CTCT][CGGT][TATA]
    [TACA][CTGC][CCAG][AACA]
    [CGTC][AACA][AGGC][CAGT]
    [GTAT][CCTT][CTTT][GTGT]}

```

i tried using the mat2cell function but im not able to understand it.please help.