Structure of PDB 8srh Chain B

Receptor sequence

>8srhB (length=1366) Species: 946362 (Salpingoeca rosetta)

VAAKTLLIENEDGKGSTRMEVQDFMKRFHMHASEDDKTGSPSTAWGTLRF
PTKEATAPYLRLSVNDDPEDALLFVKAMLAQKYGETYDRPSLILSVTGGA
RNFTLPPRLETAIAKGLRLAAQRTNAWVVTGGTNTGVMKLTGQIMEALSK
TQSHFIPPTIGIATYGVIIGGDDMTRGEPPKIGLEYEMHKKDPPKTTPLD
DNHNLFLLVDDGSTNKFGKEIKFRAAFENAAGQAFAAPVVTIVVQGGPGT
LGTALQAVRQGTPIVVVDGSGLAADVLAYAYNFMHNPLTRFKSYTIDDLR
QKVAQTFNPKSSQQLTNLLDSALECVQDPNLVVVYSLQESGIDEFDDCIL
KAIFSSQGKLGNKLKQAMYFDQLDVAKRALSEASKNGQHNEIAACINDNL
MAAMMHNKPHFVELYLGFDAKIYELKPSEEVAKTNITALDELPSFALAIE
ELYKREAKKPHSHVQRLVSLSNTDVLGRHYRVRDLANTRAYNVLRMDQIF
ARLVSKDFSVNRDFTIYDSKYDKVPGIQFRRTAQASHMLFLWAICLDRFR
MARHFWLIGDQSIINALVASRILERLSTHRALQGPHLAEERAKMQHNAKK
FEELAVGVLGECHGSDSHMASEMLHSKNDMFNKKNAINIAYDAKSLAFLS
HPATQSVINADWYGHLKSVTSFWAVLFAFFFPFFVLPFINFSGAHRLRRK
FAKFYSAPYTRFISDLLSHFVLCVVTSYFVLDKLEDTISAIEWILLVWFV
ALLLEELRQMIFCDGIAEYISDTWNRLDLIMITLFFVGFFTHASDPSNQD
SKVVSKGIHAFLVVVLWLRFMRYYALSKNLGPKLIMMMEMMKDVSTFVFL
LLIFLIGYGVAAQSLLSPDEDFSSRTFIGVLFRPYFQIYGELFLDDLNSE
ANCLGDTPFTECSRETVRMVPFFLAVYILGSNVLLVNLLIAMFNDTYMKV
QEAAEDLWRKQNYELCAEYKDRPFLPAPFILLAHVHMLFMRLLRLCGVHT
QEHEKIQDDETKRKITTFEALNTDKFLRRWERERQEMLEARVKMTNDNVV
QAMGMMDQLLEHMISFRFSLDQQANRLNSAVAVHGHTAEAAEWYVPPEEY
PKSGGVKRYLIDASMVPLSIMCPSYDPVEYTHPSVAAQPVWADPADPRKI
KFNVKDEVNGKVVDRTSCHPSGISIDSNTGRPINPWGRTGMTGRGLLGKW
GVNQAADTVVTRWKRSPDGSILERDGKKVLEFVAIQRQDNKMWAIPGGFV
DNGEDVALTSGREFMEEALGMGTSAESKDSLAALFSSGTIVARIYCEDPR
NTDNAWVETTCVNFHDESGRHAARLKLQGGDDAEHARWMMVHGGLNLFAS
HRTLLQHVTSALNAYF

3D structure

• PDB: 8srh Coupling enzymatic activity and gating in an ancient TRPM chanzyme and its molecular evolution
• Chain: B
• Resolution: 3.79 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	CLR	B	V942 L945 I972 L975 F976 Y979	V848 L851 I878 L881 F882 Y885
BS02	APR	B	T148 G149 G150 A151 R152 N153 T184 F268 G298 G300 T301 T304	T97 G98 G99 A100 R101 N102 T133 F217 G247 G249 T250 T253
BS03	MG	B	E850 Q853	E756 Q759
BS04	APR	B	W1264 L1320 G1321 N1326 A1328 D1330 R1360 G1370 G1371 F1372 C1424 F1476	W1141 L1197 G1198 N1203 A1205 D1207 R1237 G1247 G1248 F1249 C1296 F1348
BS05	CLR	B	F1003 R1012 F1016	F909 R918 F922
BS06	CLR	B	R1012 M1013 F1016	R918 M919 F922

Gene Ontology

Molecular Function

• GO:0005216 monoatomic ion channel activity
• GO:0005261 monoatomic cation channel activity
• GO:0005262 calcium channel activity

Biological Process

• GO:0006811 monoatomic ion transport
• GO:0055085 transmembrane transport
• GO:0070588 calcium ion transmembrane transport
• GO:0098655 monoatomic cation transmembrane transport

Cellular Component

• GO:0005886 plasma membrane
• GO:0016020 membrane

External links

• PDB: RCSB:8srh, PDBe:8srh, PDBj:8srh
• PDBsum: 8srh
• UniProt: F2UB89