sam/bam header lines

[keebs42]

Could someone point me to a description of the @SQ and @RG header lines? As in:
@HD VN:1.0 GO:none SO:coordinate
@SQ SN:1 LN:247249719
@SQ SN:2 LN:242951149
@SQ SN:3 LN:199501827
@SQ SN:4 LN:191273063
...
@RG ID:SRR001176 PL:ILLUMINA PU:BI.080220_SL-XAM_0002_FC20B2TAAXX.7 LB:Solexa-3628 PI:SM:NA12891 CN:BI
@RG ID:SRR001180 PL:ILLUMINA PU:BI.080222_SL-XAT_0001_FC13355AAXX.7 LB:Solexa-3628 PI:610 SM:NA12891 CN:BI

Most are straight forward, but I'm wondering specifically about @SQ SN: LN: and @RG PU:

Thanks!

[nilshomer]

Could someone point me to a description of the @SQ and @RG header lines? As in:
@HD VN:1.0 GO:none SO:coordinate
@SQ SN:1 LN:247249719
@SQ SN:2 LN:242951149
@SQ SN:3 LN:199501827
@SQ SN:4 LN:191273063
...
@RG ID:SRR001176 PL:ILLUMINA PU:BI.080220_SL-XAM_0002_FC20B2TAAXX.7 LB:Solexa-3628 PI:SM:NA12891 CN:BI
@RG ID:SRR001180 PL:ILLUMINA PU:BI.080222_SL-XAT_0001_FC13355AAXX.7 LB:Solexa-3628 PI:610 SM:NA12891 CN:BI

Most are straight forward, but I'm wondering specifically about @SQ SN: LN: and @RG PU:

Thanks!

See the SAM format on the SAMtools website.