Structure of PDB 1qka Chain A Binding Site BS01

Receptor Information

>1qka Chain A (length=517)

ADVPAGVQLADKQTLVRNNGSEVQSLDPHKIEGVPESNVSRDLFEGLLIS
DVEGHPSPGVAEKWENKDFKVWTFHLRENAKWSDGTPVTAHDFVYSWQRL
ADPNTASPYASYLQYGHIANIDDIIAGKKPATDLGVKALDDHTFEVTLSE
PVPYFYKLLVHPSVSPVPKSAVEKFGDKWTQPANIVTNGAYKLKNWVVNE
RIVLERNPQYWDNAKTVINQVTYLPISSEVTDVNRYRSGEIDMTYNNMPI
ELFQKLKKEIPNEVRVDPYLCTYYYEINNQKAPFNDVRVRTALKLALDRD
IIVNKVKNQGDLPAYSYTPPYTDGAKLVEPEWFKWSQQKRNEEAKKLLAE
AGFTADKPLTFDLLYNTSDLHKKLAIAVASIWKKNLGVNVNLENQEWKTF
LDTRHQGTFDVARAGWCADYNEPTSFLNTMLSDSSNNTAHYKSPAFDKLI
ADTLKVADDTQRSELYAKAEQQLDKDSAIVPVYYYVNARLVKPWVGGYTG
KDPLDNIYVKNLYIIKH

Ligand information

>1qka Chain B (length=3) Species: 32630 (synthetic construct)

KRK

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1qka Crystallographic and Calorimetric Analysis of Peptide Binding to Oppa Protein
• Resolution: 1.8 Å
• Binding residue (original residue number in PDB): E32 G33 V34 Y109 Y245 N246 N247 Y269 W397 R413 G415 W416 C417 D419 N436 T438
• Binding residue (residue number reindexed from 1): E32 G33 V34 Y109 Y245 N246 N247 Y269 W397 R413 G415 W416 C417 D419 N436 T438

Gene Ontology

Molecular Function

• GO:1904680 peptide transmembrane transporter activity

Biological Process

• GO:0015031 protein transport
• GO:0015833 peptide transport
• GO:0055085 transmembrane transport

Cellular Component

• GO:0030288 outer membrane-bounded periplasmic space
• GO:0042597 periplasmic space
• GO:0043190 ATP-binding cassette (ABC) transporter complex

External links

• PDB: RCSB:1qka, PDBe:1qka, PDBj:1qka
• PDBsum: 1qka
• PubMed: 10438628
• UniProt: P06202|OPPA_SALTY Periplasmic oligopeptide-binding protein OppA (Gene Name=oppA)