4CT0: Mouse Cryptochrome1

Crystal Structure of Mouse Cryptochrome1 in Complex with Period2. Determined by X-ray diffraction at 2.45 Å resolution. Released 4 Jun 2014.

Method
X-ray diffraction
Resolution
2.45 Å
Organism
MUS MUSCULUS
Chains
2
Atoms
4,766
Mol. weight
75.2 kDa
Ligands
ZN
Released
4 Jun 2014

Explore 4CT0 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4CT0 contains 38 α-helices and 12 β-strands across 2 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: 30 helices, 10 β-strands

ElementResiduesLengthSheet
β-strand4-961
α-helix19-246
β-strand30-3781
α-helix49-6820
β-strand73-7751
α-helix80-9112
β-strand93-9971
α-helix104-11815
β-strand123-12751
α-helix135-1417
α-helix150-1589
α-helix161-1699
α-helix172-1754
β-strand17911
α-helix195-1984
α-helix206-2083
α-helix214-23118
α-helix246-2472
α-helix252-2576
α-helix262-27615
α-helix284-2874
α-helix288-30013
β-strand32112
α-helix324-3318
α-helix338-35013
α-helix355-3639
α-helix364-3685
β-strand37212
α-helix374-38411
α-helix390-40011
α-helix411-4144
α-helix417-4226
α-helix427-4326
α-helix434-4363
α-helix447-4493
α-helix454-4585
β-strand46213
β-strand46613
α-helix467-4693
α-helix473-49422
Chain B: 8 helices, 2 β-strands
ElementResiduesLengthSheet
β-strand-8--544
β-strand1132-113544
α-helix1138-11414
α-helix1147-11526
α-helix1155-11573
α-helix1160-117415
α-helix1175-11773
α-helix1183-11908
α-helix1195-11984
α-helix1203-12053

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Cryptochrome-1Aprotein507MUS MUSCULUSP97784 (AlphaFold model)
Period circadian protein homolog 2Bprotein143MUS MUSCULUSO54943 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>4CT0_1 CRYPTOCHROME-1 (chains A)
MGVNAVHWFRKGLRLHDNPALKECIQGADTIRCVYILDPWFAGSSNVGINRWRFLLQCLE
DLDANLRKLNSRLFVIRGQPADVFPRLFKEWNITKLSIEYDSEPFGKERDAAIKKLATEA
GVEVIVRISHTLYDLDKIIELNGGQPPLTYKRFQTLVSKMEPLEMPADTITSDVIGKCMT
PLSDDHDEKYGVPSLEELGFDTDGLSSAVWPGGETEALTRLERHLERKAWVANFERPRMN
ANSLLASPTGLSPYLRFGCLSCRLFYFKLTDLYKKVKKNSSPPLSLYGQLLWREFFYTAA
TNNPRFDKMEGNPICVQIPWDKNPEALAKWAEGRTGFPWIDAIMTQLRQEGWIHHLARHA
VACFLTRGDLWISWEEGMKVFEELLLDADWSINAGSWMWLSCSSFFQQFFHCYCPVGFGR
RTDPNGDYIRRYLPVLRGFPAKYIYDPWNAPEGIQKVAKCLIGVNYPKPMVNHAEASRLN
IERMKQIYQQLSRYRGAAALEHHHHHH
Sequence of entity 2 (B), FASTA
>4CT0_2 PERIOD CIRCADIAN PROTEIN HOMOLOG 2 (chains B)
MKHHHHHHSAGLEVLFQGPDSMYVLQDPIWLLMANTDDSIMMTYQLPSRDLQAVLKEDQE
KLKLLQRSQPRFTEGQRRELREVHPWVHTGGLPTAIDVTGCVYCESEEKGNICLPYEEDS
PSPGLCDTSEAKEEEGEQLTGPR

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn1

Water and common crystallization additives (P6G, CL) are not listed.

Primary citation

Interaction of Circadian Clock Proteins Cry1 and Per2 is Modulated by Zinc Binding and Disulfide Bond Formation. Schmalen, I., Reischl, S., Wallach, T. et al. Cell (2014) 157:1203. DOI 10.1016/J.CELL.2014.03.057 · PubMed

Other PDB entries of the same protein (UniProt P97784 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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