Structure of PDB 8srg Chain B

Receptor sequence

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

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

3D structure

• PDB: 8srg Coupling enzymatic activity and gating in an ancient TRPM chanzyme and its molecular evolution
• Chain: B
• Resolution: 3.03 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	F976 Y979	F882 Y885
BS02	RP5	B	D1330 R1360 G1370 F1372 C1424 D1426 H1479	D1207 R1237 G1247 F1249 C1296 D1298 H1351
BS03	AMP	B	W1264 F1372 D1460	W1141 F1249 D1332
BS04	MG	B	E850 Q853 N869	E756 Q759 N775
BS05	MG	B	L621 I622 G623 E1114	L557 I558 G559 E1020
BS06	MG	B	G1370 E1390	G1247 E1267
BS07	CLR	B	L878 V898 I902 F905	L784 V804 I808 F811
BS08	CLR	B	F1003 R1012 P1015 F1016	F909 R918 P921 F922
BS09	CLR	B	E1009 R1012 M1013 F1016	E915 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:8srg, PDBe:8srg, PDBj:8srg
• PDBsum: 8srg
• UniProt: F2UB89