>4apuA (A:) observed residues (from ATOM records)
lipplinllmsiepdviyaghdntkpdtssslltslnqlgerqllsvvkwskslpgfrnl
hiddqitliqyswmslmvfglgwrsykhvsgqmlyfapdlilneqrmkessfyslcltmw
qipqefvklqvsqeeflcmkvllllntipleglrsqtqfeemrssyirelikaiglrqkg
vvsssqrfyqltklldnlhdlvkqlhlyclntfiqsralsvefpemmseviaaqlpkila
gmvkpllfhk