9OHM: Bovine phosphodiesterase 6

Cryo-EM structure of bovine phosphodiesterase 6 bound to CB-5083. Determined by electron microscopy at 2.72 Å resolution. Released 27 May 2026.

Method: Electron microscopy
Resolution: 2.72 Å
Organism: Bos taurus
Chains: 4
Atoms: 14,219
Mol. weight: 218.98 kDa
Ligands: JDP, MG, ZN, PCG
Released: 27 May 2026

Explore 9OHM in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9OHM contains 101 α-helices and 40 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 48 helices, 19 β-strands

Element	Residues	Length	Sheet
α-helix	9-15	7
α-helix	17-37	21
α-helix	50-52	3
α-helix	54-65	12
α-helix	74-89	16
β-strand	91	1	1
β-strand	94-102	9	2
β-strand	105-115	11	2
α-helix	121-124	4
β-strand	125	1	2
β-strand	132	1	3
β-strand	133-135	3	2
α-helix	140-147	8
β-strand	151-153	3	2
α-helix	165-170	6
β-strand	177-184	8	2
β-strand	187-194	8	2
β-strand	197	1	1
α-helix	205-248	44
α-helix	255-265	11
α-helix	267-270	4
β-strand	272-280	9	4
α-helix	288-295	8
β-strand	306	1	5
α-helix	311	1
β-strand	312	1	5
α-helix	313	1
β-strand	315-322	8	4
β-strand	330-333	4	4
α-helix	346-353	8
β-strand	356	1	6
β-strand	357-360	4	4
α-helix	362-364	3
β-strand	384-391	8	4
β-strand	397-406	10	4
α-helix	410-412	3
α-helix	414-429	16
α-helix	432-458	27
α-helix	465-467	3
α-helix	471-474	4
α-helix	484-494	11
α-helix	498-501	4
α-helix	515-528	14
α-helix	531-535	5
α-helix	539-552	14
α-helix	561-576	16
α-helix	581-583	3
α-helix	586-597	12
α-helix	608-613	6
α-helix	617-621	5
α-helix	626-639	14
α-helix	652-667	16
α-helix	671-676	6
α-helix	679-690	12
α-helix	694-701	8
α-helix	706-720	15
α-helix	722-725	4
α-helix	728-748	21
α-helix	749-753	5
α-helix	756-758	3
α-helix	759-761	3
α-helix	766-768	3
α-helix	769-776	8
α-helix	777-781	5
α-helix	782-791	10
α-helix	793-795	3
α-helix	796-820	25

Chain B: 47 helices, 18 β-strands

Element	Residues	Length	Sheet
α-helix	9-13	5
α-helix	16-24	9
α-helix	26-28	3
α-helix	48-67	20
α-helix	72-87	16
β-strand	89	1	7
β-strand	92-100	9	8
β-strand	103-113	11	8
α-helix	119-121	3
β-strand	123	1	8
α-helix	126-128	3
β-strand	131-133	3	8
α-helix	138-145	8
β-strand	149-151	3	8
α-helix	163-168	6
β-strand	175-181	7	8
β-strand	186-192	7	8
β-strand	195	1	7
α-helix	203-212	10
α-helix	214-246	33
α-helix	253-263	11
α-helix	265-268	4
β-strand	270-278	9	9
α-helix	286-294	9
α-helix	298-300	3
β-strand	304	1	10
β-strand	310	1	10
β-strand	313-320	8	9
β-strand	328-331	4	9
α-helix	344-351	8
β-strand	354	1	11
β-strand	355-358	4	9
α-helix	360-362	3
β-strand	382-389	8	9
β-strand	395-404	10	9
α-helix	408-410	3
α-helix	412-427	16
α-helix	429-456	28
α-helix	462-465	4
α-helix	482-492	11
α-helix	494-495	2
α-helix	513-526	14
α-helix	529-533	5
α-helix	537-550	14
α-helix	564-574	11
α-helix	578-581	4
α-helix	584-595	12
α-helix	606-611	6
α-helix	615-620	6
α-helix	624-638	15
α-helix	640-642	3
α-helix	650-665	16
α-helix	669-673	5
α-helix	676-686	11
α-helix	692-699	8
α-helix	704-718	15
α-helix	720-723	4
α-helix	726-746	21
α-helix	747-751	5
α-helix	754-756	3
α-helix	767-774	8
α-helix	775-779	5
α-helix	780-789	10
α-helix	791-793	3
α-helix	794-824	31

Chain C: 3 helices, 2 β-strands

Element	Residues	Length	Sheet
β-strand	21	1	3
β-strand	31	1	6
α-helix	32-34	3
α-helix	57-59	3
α-helix	78-83	6

Chain D: 3 helices, 1 β-strand

Element	Residues	Length	Sheet
β-strand	31	1	11
α-helix	32-34	3
α-helix	57-59	3
α-helix	78-83	6

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha	A	protein	859	Bos taurus	P11541 (AlphaFold model)
Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta	B	protein	853	Bos taurus	P23439 (AlphaFold model)
Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma	C, D	protein	87	Bos taurus	P04972 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>9OHM_1 Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha (chains A)
MGEVTAEEVEKFLDSNVSFAKQYYNLRYRAKVISDLLGPREAAVDFSNYHALNSVEESEI
IFDLLRDFQDNLQAEKCVFNVMKKLCFLLQADRMSLFMYRARNGIAELATRLFNVHKDAV
LEECLVAPDSEIVFPLDMGVVGHVALSKKIVNVPNTEEDEHFCDFVDTLTEYQTKNILAS
PIMNGKDVVAIIMVVNKVDGPHFTENDEEILLKYLNFANLIMKVFHLSYLHNCETRRGQI
LLWSGSKVFEELTDIERQFHKALYTVRAFLNCDRYSVGLLDMTKQKEFFDVWPVLMGEAP
PYAGPRTPDGREINFYKVIDYILHGKEDIKVIPNPPPDHWALVSGLPTYVAQNGLICNIM
NAPSEDFFAFQKEPLDESGWMIKNVLSMPIVNKKEEIVGVATFYNRKDGKPFDEMDETLM
ESLTQFLGWSVLNPDTYELMNKLENRKDIFQDMVKYHVKCDNEEIQTILKTREVYGKEPW
ECEEEELAEILQGELPDADKYEINKFHFSDLPLTELELVKCGIQMYYELKVVDKFHIPQE
ALVRFMYSLSKGYRRITYHNWRHGFNVGQTMFSLLVTGKLKRYFTDLEALAMVTAAFCHD
IDHRGTNNLYQMKSQNPLAKLHGSSILERHHLEFGKTLLRDESLNIFQNLNRRQHEHAIH
MMDIAIIATDLALYFKKRTMFQKIVDQSKTYETQQEWTQYMMLDQTRKEIVMAMMMTACD
LSAITKPWEVQSKVALLVAAEFWEQGDLERTVLQQNPIPMMDRNKADELPKLQVGFIDFV
CTFVYKEFSRFHEEITPMLDGITNNRKEWKALADEYETKMKGLEEEKQKQQAANQAAAGS
QHGGKQPGGGPASKSCCVQ

Sequence of entity 2 (B), FASTA

>9OHM_2 Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta (chains B)
MSLSEGQVHRFLDQNPGFADQYFGRKLSPEDVANACEDGCPEGCTSFRELCQVEESAALF
ELVQDMQENVNMERVVFKILRRLCSILHADRCSLFMYRQRNGVAELATRLFSVQPDSVLE
DCLVPPDSEIVFPLDIGVVGHVAQTKKMVNVQDVMECPHFSSFADELTDYVTRNILATPI
MNGKDVVAVIMAVNKLDGPCFTSEDEDVFLKYLNFGTLNLKIYHLSYLHNCETRRGQVLL
WSANKVFEELTDIERQFHKAFYTVRAYLNCDRYSVGLLDMTKEKEFFDVWPVLMGEAQAY
SGPRTPDGREILFYKVIDYILHGKEDIKVIPSPPADHWALASGLPTYVAESGFICNIMNA
PADEMFNFQEGPLDDSGWIVKNVLSMPIVNKKEEIVGVATFYNRKDGKPFDEQDEVLMES
LTQFLGWSVLNTDTYDKMNKLENRKDIAQDMVLYHVRCDREEIQLILPTRERLGKEPADC
EEDELGKILKEVLPGPAKFDIYEFHFSDLECTELELVKCGIQMYYELGVVRKFQIPQEVL
VRFLFSVSKGYRRITYHNWRHGFNVAQTMFTLLMTGKLKSYYTDLEAFAMVTAGLCHDID
HRGTNNLYQMKSQNPLAKLHGSSILERHHLEFGKFLLSEETLNIYQNLNRRQHEHVIHLM
DIAIIATDLALYFKKRTMFQKIVDESKNYEDRKSWVEYLSLETTRKEIVMAMMMTACDLS
AITKPWEVQSKVALLVAAEFWEQGDLERTVLDQQPIPMMDRNKAAELPKLQVGFIDFVCT
FVYKEFSRFHEEILPMFDRLQNNRKEWKALADEYEAKVKALEEDQKKETTAKKVGTEICN
GGPAPRSSTCRIL

Sequence of entity 3 (C, D), FASTA

>9OHM_3 Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (chains C, D)
MNLEPPKAEIRSATRVMGGPVTPRKGPPKFKQRQTRQFKSKPPKKGVQGFGDDIPGMEGL
GTDITVICPWEAFNHLELHELAQYGII

Ligands and cofactors

ID	Name	Formula	Copies
JDP	1-[4-(benzylamino)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-yl]-2-methyl-1H-indo…	C24 H23 N5 O2	2
MG	Magnesium ion	Mg	2
ZN	Zinc ion	Zn	2
PCG	Cyclic guanosine monophosphate	C10 H12 N5 O7 P	2

Primary citation

Cryo-EM-guided subtractive optimization of a novel VCP/p97 inhibitor. Crawford, J., Munuganti, R., Leung, C. et al. IUCrJ (2026) 13:364-372. DOI 10.1107/S2052252526004604 · PubMed

Other PDB entries of the same protein (UniProt P11541 (AlphaFold model), which also has an AlphaFold model), best resolution first:

8UGB 3.0 Å, Cryo-EM structure of bovine phosphodiesterase 6 bound to udenafil
8UFI 3.1 Å, Cryo-EM structure of bovine phosphodiesterase 6
7JSN 3.2 Å, Structure of the Visual Signaling Complex between Transducin and Phosphodiesterase 6
8UGS 3.2 Å, Cryo-EM structure of bovine phosphodiesterase 6 bound to cGMP
8ULG 3.2 Å, Cryo-EM structure of bovine phosphodiesterase 6 bound to IBMX
6MZB 3.4 Å, Cryo-EM structure of phosphodiesterase 6

Browse structure collections

About this viewer

MolViewer shows 9OHM directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.