9WMS: DNA-directed RNA polymerase subunit

Co-transcriptional histone H3K36 methylation complex containing RNA polymerase II elongation complex, Set2, and the upstream nucleosome. (temp115, type B). Determined by electron microscopy at 3.4 Å resolution. Released 24 Dec 2025.

Method
Electron microscopy
Resolution
3.4 Å
Organisms
Komagataella phaffii GS115, synthetic construct, Homo sapiens
Chains
34
Atoms
78,450
Mol. weight
1512.55 kDa
Ligands
SAH, MG, ZN
Released
24 Dec 2025

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

Secondary structure: helices and β-sheets

9WMS contains 475 α-helices and 393 β-strands across 31 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: 4 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix45-5612
α-helix64-7613
β-strand83-84229
α-helix86-11328
β-strand118-119230
α-helix121-13111
Chain A: 85 helices, 67 β-strands
ElementResiduesLengthSheet
α-helix101
β-strand1111
β-strand16-1832
β-strand2113
α-helix22-232
α-helix24-307
β-strand3414
β-strand3715
α-helix48-492
β-strand5215
β-strand82-91104
α-helix93-953
α-helix96-10510
β-strand10616
β-strand11316
α-helix120-1278
α-helix131-14212
β-strand14717
α-helix1701
β-strand17117
α-helix172-1732
β-strand174-17858
β-strand181-18668
β-strand199-20248
α-helix205-2139
α-helix217-2226
α-helix232-2354
β-strand236-24274
β-strand251-25229
β-strand258-25929
α-helix260-2612
α-helix262-28322
α-helix287-30519
α-helix313-3153
β-strand316110
α-helix3211
β-strand322110
α-helix3231
α-helix327-3293
α-helix3361
α-helix337-3415
β-strand344-346311
β-strand349-356812
β-strand364-368512
α-helix369-3746
β-strand376-380513
α-helix3811
α-helix386-39510
β-strand403-407513
β-strand413-415313
α-helix422-4243
α-helix425-4273
β-strand432-436513
α-helix4371
β-strand442-446512
α-helix453-4553
β-strand456-464912
β-strand469-471312
α-helix473-4753
α-helix476-4794
β-strand487-491512
α-helix496-50510
β-strand507112
α-helix508-5114
β-strand513-514214
β-strand519-520214
α-helix526-53510
β-strand541-542215
α-helix544-55310
α-helix561-5644
β-strand566-568316
β-strand572116
β-strand573-574215
α-helix575-5828
α-helix5841
β-strand589-591317
β-strand606-609417
β-strand612-615417
α-helix620-6234
α-helix630-6389
α-helix640-66122
α-helix667-6704
α-helix674-69825
α-helix703-7064
α-helix711-73727
α-helix743-7508
α-helix756-7638
β-strand767-768218
β-strand771119
β-strand774119
α-helix776-7772
α-helix796-7983
β-strand800-801218
α-helix811-84636
β-strand850-851220
β-strand857-858220
β-strand864-866320
α-helix869-8713
β-strand874121
β-strand880-883422
α-helix891-8988
α-helix905-9073
β-strand914123
α-helix918-9203
α-helix925-94319
α-helix944-9485
β-strand955-958422
α-helix962-97312
α-helix979-9802
β-strand981123
α-helix985-99511
α-helix1007-101610
α-helix1018-102710
α-helix1030-10312
α-helix1032-10376
α-helix1041-105717
β-strand1059121
α-helix1060-10612
α-helix1066-107914
α-helix1099-110810
β-strand1118-1121424
β-strand1122125
α-helix11231
α-helix1124-11274
α-helix1130-114011
β-strand1143-1144226
α-helix1145-11484
β-strand1149-1156827
α-helix1169-11768
β-strand1193-1199727
α-helix1201-12066
α-helix1211-122212
β-strand1226-1230527
β-strand1239-1244627
α-helix1260-127314
β-strand1275-1277326
β-strand1284-12951224
β-strand1301-13121224
α-helix1316-13205
β-strand1325125
β-strand1331-1332224
α-helix1335-13417
α-helix1344-136017
α-helix1368-137912
α-helix1389-13924
α-helix1399-14035
α-helix1408-141811
β-strand1421-142222
α-helix1427-14326
α-helix1440-14423
β-strand1444-1448528
α-helix1450-14534
Chains b and f: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix26-283
α-helix31-4010
β-strand45-46230
α-helix50-7526
β-strand80-81229
α-helix83-9210
β-strand96-98353
Chain B: 52 helices, 74 β-strands
ElementResiduesLengthSheet
α-helix14-2714
α-helix32-409
α-helix41-455
α-helix46-505
β-strand55-62831
β-strand71-841431
β-strand88-90332
β-strand96-98332
α-helix101-1066
β-strand112-1261531
β-strand155-162831
α-helix163-1642
α-helix177-1826
β-strand194-196333
β-strand199-203533
α-helix2041
β-strand205-209534
α-helix2101
β-strand214-218535
β-strand227-235935
β-strand240-2491035
β-strand261-263335
β-strand272-273235
α-helix274-2818
α-helix286-2938
α-helix300-31314
α-helix319-32810
α-helix338-35013
α-helix365-38218
α-helix387-3893
α-helix394-3963
β-strand397-400434
α-helix402-43130
α-helix443-45614
β-strand473-475333
α-helix476-4772
α-helix481-4888
β-strand490-492334
α-helix502-5054
α-helix509-5113
β-strand515136
β-strand529-531334
β-strand532136
β-strand537-538237
α-helix545-5539
β-strand557-558238
α-helix559-5613
α-helix5701
β-strand571-575538
β-strand578-583638
α-helix586-59813
β-strand607-611538
β-strand616-620538
β-strand626-632737
β-strand633139
β-strand645139
α-helix649-6579
α-helix678-6836
β-strand687-691537
α-helix694-6974
β-strand700-701237
α-helix704-7074
β-strand740-741237
α-helix745-7484
α-helix752-7543
α-helix759-7613
α-helix764-77310
α-helix774-7763
β-strand777140
β-strand792-796541
β-strand800142
β-strand804-805243
α-helix807-8104
β-strand821-827744
β-strand838-842544
α-helix843-8486
β-strand853-8621041
β-strand865145
β-strand871145
β-strand873-874246
β-strand882-883246
β-strand898147
α-helix899-9002
β-strand904-905241
β-strand910-912347
β-strand914-917446
α-helix922-9254
β-strand927148
β-strand934-936346
β-strand939-940247
α-helix941-9422
β-strand947-9561041
β-strand962-9721141
β-strand979-982444
β-strand987-994844
α-helix996-9983
β-strand1001-1002249
β-strand1010-1012344
α-helix1014-10163
α-helix1017-10204
α-helix1023-103816
β-strand1041-1043343
α-helix1052-106110
β-strand1069-1070244
β-strand1072-1073249
α-helix10791
β-strand1080149
α-helix10811
β-strand1085-10941044
β-strand1095140
α-helix1099-11013
β-strand1104-1106312
β-strand1111150
β-strand1118150
β-strand1128-1130311
α-helix1132-114110
α-helix1144-11529
β-strand1157-116371
β-strand1174151
β-strand1179151
β-strand1182152
β-strand1187152
β-strand1191-119771
α-helix1198-120912
β-strand121213
β-strand1215-121732
Chain c: 5 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix17-215
α-helix27-3610
β-strand42-43258
α-helix46-7227
α-helix80-889
α-helix91-966
β-strand100-102359
Chain C: 11 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand6-12754
β-strand16-22754
α-helix26-3813
β-strand42-531255
α-helix59-679
β-strand71-73356
α-helix82-843
β-strand96-103855
β-strand111-114457
α-helix115-1173
β-strand119-122455
β-strand129-132456
α-helix1331
β-strand143-147557
β-strand152-1621155
α-helix168-1703
β-strand173-180854
α-helix197-2004
α-helix202-2043
α-helix207-2093
α-helix211-2144
β-strand227-234854
α-helix240-26526
Chain d: 4 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix38-4811
α-helix56-8328
β-strand88-89258
α-helix91-10111
α-helix105-12319
Chain D: 9 helices, 6 β-strands
ElementResiduesLengthSheet
β-strand5-6228
β-strand24160
β-strand29160
β-strand37-39361
β-strand45-47361
β-strand49-51328
α-helix53-7119
α-helix86-927
α-helix96-11116
α-helix118-13013
α-helix133-1353
α-helix139-14810
α-helix153-1597
α-helix161-1644
α-helix171-18111

22 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA-directed RNA polymerase subunitAprotein1743Komagataella phaffii GS115C4R4Y0
DNA-directed RNA polymerase subunit betaBprotein1227Komagataella phaffii GS115C4QZQ7 (AlphaFold model)
RNA polymerase II third largest subunit B44, part of central coreCprotein304Komagataella phaffii GS115C4R7L2 (AlphaFold model)
RNA polymerase II subunit B32Dprotein186Komagataella phaffii GS115C4R2U9 (AlphaFold model)
DNA-directed RNA polymerases I, II, and III subunit RPABC1Eprotein214Komagataella phaffii GS115C4R3P8
RNA polymerase subunit ABC23, common to RNA polymerases I, II, and IIIFprotein155Komagataella phaffii GS115C4R1V1
RNA polymerase II subunitGprotein171Komagataella phaffii GS115C4R9A1
DNA-directed RNA polymerases I, II, and III subunit RPABC3Hprotein145Komagataella phaffii GS115C4R273
DNA-directed RNA polymerase subunitIprotein115Komagataella phaffii GS115F2QPE6
RNA polymerase subunit ABC10-beta, common to RNA polymerases I, II, and IIIJprotein72Komagataella phaffii GS115C4R009
RNA polymerase II subunit B12.5Kprotein118Komagataella phaffii GS115C4R3Z5
RNA polymerase subunit ABC10-alphaLprotein72Komagataella phaffii GS115F2QMI1

18 more molecules are not listed.

Sequence of entity 1 (A), FASTA
>9WMS_1 DNA-directed RNA polymerase subunit (chains A)
MSQFPYSSAPLRSVKEVQFGLLSPEEIRAISVVKIEYPEIMDESRQRPREGGLNDPKLGS
IDRNFKCQTCGEGMAECPGHFGHMELAKPVFHIGFIPKIKKVCECICMNCGKLLLDETNP
TMAQAIRIRDPKKRFNAVWQLCKTKMVCEADAPVDEYSEQKVVSRGGCGNTQPVVRKDGM
KLWGTWKKSGFSDRDAQPERKLLTPGEILNVFKHISPEDCFRLGFNEDYARPEWMIITVL
PVPPPQVRPSIAMDETTQGQDDLTHKLSDILKANINVQKLEMDGSPQHIINEVEQLLQFH
VATYMDNDIAGQPQALQKSGRPVKAIRARLKGKEGRLRGNLMGKRVDFSARTVISGDPNL
ELDQVGVPISIAKTLSYPETVTQYNIHRLTEYVRNGPNEHPGAKYVIRDNGDRIDLRYHK
RAGDIVLQYGWKVERHLMDDDPVLFNRQPSLHKMSMMAHRVKVMPYSTFRLNLSVTSPYN
ADFDGDEMNLHVPQSEETRAELSQLCAVPLQIVSPQSNKPVMGIVQDTLCGVRKMTLRDT
FIEYEQVMNMLFWVPSWDGVVPQPAILKPKPLWTGKQLLSIAIPSGIHLQRTDGGNSLLS
PKDNGMLIVDGKVMFGVVDKKTVGSGGGGLIHTVMREKGPKICAELFGNIQKVVNYWLLH
NGFSIGIGDAIADASTMKEITHAISSAKEQVQEIIYKAQHNELELKPGMTLRESFEGEVS
RTLNDARDSAGRSAEMNLKDLNNVKQMVSAGSKGSFINIAQMSACVGQQMVEGKRIAFGF
ADRSLPHFTKDDFSPESKGFVENSYLRGLTPQEFFFHAMAGREGLIDTAVKTAETGYIQR
RLVKALEDIMVHYDGTTRNSLGDIIQFLYGEDGLDGTQVERQTIDTIPGSDKAFHKRYYV
DLMDEKNSIKPDVIEYAADILGDVELQKELNSEYEQLVSDRKFLREIVFVNGDHNWPLPV
NLRRIIQNAQQIFHLDRAKASDLTIPEIIHGVRDLCKKLFVLRGENELIKEAQQNATSLF
QCLVRARLATRRILEEFRLNRDAFEWVLGTIEAQFQRSLVHPGEMVGVIAAQSIGEPATQ
MTLNTFHYAGVSSKNVTLGVPRLKEILNVAKNIKTPALTVYLDREIALDIEKAKVIQSSI
EYTTLKNVTSATEIYYDPDPTSTVIEEDFDTVEAYFSIPDEKVEETIDKQSPWLLRLELD
RARMLDKQLTMNQVADKISEVFSDDLFVMWSEDNADKLIIRCRVIRDPKAMDEELEAEED
QMLKRIEAHMLDLIALRGIPGISKVYMVKHKVSVPDESGEYKNEELWALETDGINLAEVM
AVPGVDSSRTYSNSFVEILSVLGIEATRSSLYKEILNVIAFDGSYVNYRHMALLVDVMTS
RGYLMAITRHGINRADTGALMRCSFEETVEILFEAGAAAELDDCRGVSENVMLGQLAPMG
TGAFDVMIDEKLLTSLPADYAPTMPLFKGKATQGSATPYDNNAQYDDEFNHDDVADVMFS
PMAETGSGDDRSGGLTEYAGIQSPYQPTSPGLSATSPGFAPTSPGFAPTSPRYSPTSPGY
SPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTS
PSYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYS
PTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPTSPQYSPASPQYSPSRHSPNGESK
EGE
Sequence of entity 2 (B), FASTA
>9WMS_2 DNA-directed RNA polymerase subunit beta (chains B)
MSYDPYSIDDTITTEDCWTVISAFFEEKGLVSQQLDSFDEFMETSIQDLVWEEPRLILDQ
PAQHTNEKDNINKRYEIRFGKIYLSRPTMTEADGTTHAMFPQEARLRNLTYSSPVYLDME
KSMFTSIDDEGNPNATLDWQQVHEPIKDGVEEGNKVHIGKVPIMLRSKFCSLRTLDEVDL
YKMKECPYDMGGYFVINGSEKVLIAQERSAANIVQVFKKAAPSPISHVAEIRSALEKGSR
LISTMQIKLYGREDKGTGRTIKATLPYVKQDIPIVIVFRALGVVPDGEILQHICYDENDW
QMLEMLKPCIEEGFVIQDKEVALDFIGRRGSAALGIRREKRIQYAKDILQKELLPHITQE
EGFETRKTFFLGYMVNRLLLCALERKDQDDRDHFGKKRLDLAGPLLANLFRILFRKLTRE
IYRYMQRCIETDRDFNLNLAVKSTTITSGLKYSLATGNWGEQKKAMSSRAGVSQVLNRYT
YSSTLSHLRRTNTPIGRDGKLAKPRQLHNTHWGLVCPAETPEGQACGLVKNLSLLSGISI
GSPSEPIINFLEEWGMEPLEDYDPAQHTKSTRIFVNGVWTGIHRDPSMLVSTMRDLRRSG
AISPEVSIIRDIREREFKIFTDVGRVYRPLFIVEDDESKDNKGELRITKEHIRKIQQGYD
DDAMNDDSEEQEQDVYGWSSLVTSGVIEYVDGEEEETIMIAMTPEDLQTRSLEQKEIDLN
DTAKRIKPEMSTSSHHTFTHCEIHPSMILGVAASIIPFPDHNQSPRNTYQSAMGKQAMGV
FLTNYNVRMDTMANILYYPQKPLAKTQAMEYLKFRELPAGQNAIVAIACYSGYNQEDSMI
MNQSSIDRGLFRSLFFRSYMDQEKRFGISIVEEFEKPTRATTLRLKHGTYEKLDEDGLIA
PGVRVSGDDIIIGKTTPIPPDTEELGQRTKYHTKRDASTPLRSTENGIVDQVLLTTNQEG
LKFVKVRMRTTKVPQIGDKFASRHGQKGTIGVTYRHEDMPFSAEGIVPDLIINPHAIPSR
MTVAHLIECLLSKVGSIRGYEGDATPFTDLTVDAVSNLLRDNGYQSRGFEVMYNGHTGKK
LMAQVFFGPTYYQRLRHMVDDKIHARARGPVQVLTRQPVEGRSRDGGLRFGEMERDCMIA
HGAAGFLKERLMEASDAFRVHVCGICGLMSVIANLKKNQFECRSCKNKTNIYQLHIPYAA
KLLFQELMAMNIAPRLYTERSGVSMRS
Sequence of entity 3 (C), FASTA
>9WMS_3 RNA polymerase II third largest subunit B44, part of central core (chains C)
MSKEPKVNIINAQDDEVELMLSDVNLSLANSLRRTMLAEVPTLAIDLVEIKMNTSVLADE
FISHRLGLIPLVSEDVEEMKYSRDCTCEDYCDECSVVLELSARHEGEEGTTDVYSSSLIK
VSGPGNLNVGEPVRRDDYDQGILLCKLRNHQELNIRCIAKKGIAKEHAKWSPCSAIAFEY
DPHNKLKHTDFWFEVDAKKEWPDSKYATWEEPPKPGEVFDYKAKPNRFYMTVETTGSLKA
NQVFSRGIKTLQEKLANVLFELENSRPANTTAYGGATAYGGQTVYGRETSYGGNTNYGDY
NAPY
Sequence of entity 4 (D), FASTA
>9WMS_4 RNA polymerase II subunit B32 (chains D)
MNVSTSTVGARRRRAKQQVDDEENATLLRLGPEFALKQYDHDGNEHDLIALSLSESRLLI
REALKARSRARNGGVDIESSNGEIDDDELAKVTSGAVANGVVKKTLDYLNTFARFKDEET
CTAVDQLLHNSSDCSVLHPFEIAQLSSLGCEDVDEAITLIPSLAAKKEVNLQRILDELNR
LEDPYK
Sequence of entity 5 (E), FASTA
>9WMS_5 DNA-directed RNA polymerases I, II, and III subunit RPABC1 (chains E)
MEDNNRIISRLWRSFRTVKEMAADRGYFISQEEMDQSLEEFRSKICDSMGNPQRKLMSFL
ANPTPEALEKYSDLGTLWVEFCDEPSVGIKTMRNFCLRIQEKNFSTGIFIYQNNITPSAN
KMIPTVSPAIIETFQESDLVVNITHHELVPKHIRLSDGEKSQLLQRYKLKESQLPRIQRE
DPVARYLGLKRGQVVKIIRRSETSGRYASYRICL
Sequence of entity 6 (F), FASTA
>9WMS_6 RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III (chains F)
MSEDEAFNEQTENFENFEDEHFSDDNFEDRSTQPEDYAVGVTADGRQIINGDGIQEVNGT
IKAHRKRSNKELAILKEERTTTPYLTKYERARILGTRALQISMNAPVLVDIEGETDPLQI
AMKELSQRKIPLVIRRYLPDGSYEDWGCDELIVDN
Sequence of entity 7 (G), FASTA
>9WMS_7 RNA polymerase II subunit (chains G)
MFFLKDLSLILTLHPSYFGPQMNQYLREKLLTDVEGTCTGQFGYIVTVLDGMNIDVGKGR
IIPGSGSAEFEVKYRAVVWKPFKGEVVDAIVSNVSPIGFFADVGPLNVFVSTRLIPDNLV
YNPSNSPPAYMSNDELITKGSKVRLKVVGTRTDVNEIYAIGSIKEDFLGAI
Sequence of entity 8 (H), FASTA
>9WMS_8 DNA-directed RNA polymerases I, II, and III subunit RPABC3 (chains H)
MSSALFDDIFTVQTVDNGRYNKVSRIIGISTTNSAIKLTLDINNEMFPVSQDDSLTVTLA
NSLSLDGEDESANFSKSWRPPKPTDKSLADDYDYVMFGTVYKFEEGDEDKIKVYVSFGGL
LMCLEGGYKSLASLKQDNLYILIRR
Sequence of entity 9 (I), FASTA
>9WMS_9 DNA-directed RNA polymerase subunit (chains I)
MASFRFCLECNNMLYPKEDKENQRLLYSCRNCDYTELAEDPKVYRHELITNIGETAGIVD
DIGQDPTLPRSDKECPECHSRDCVFFQSQQRRKDTNMTLFYVCLNCKKTFRDESE
Sequence of entity 10 (J), FASTA
>9WMS_10 RNA polymerase subunit ABC10-beta, common to RNA polymerases I, II, and III (chains J)
MIIPVRCFSCGKVVGDKWDAYLRLLEEGKQEGDALDELKLKRYCCRRMVLTHVDLIEKFL
RYNPLEKKDFDS
Sequence of entity 11 (K), FASTA
>9WMS_11 RNA polymerase II subunit B12.5 (chains K)
MNAPDRFELFILPDDVPKLKITPDSRVPNCIIIKFEREDHTLANLLREELALYPDVTFVA
YKVEHPLFANFVMRLQTEEGTRPKQALERACASIINKLKTLDHKFNEEWNIKNFSLND
Sequence of entity 12 (L), FASTA
>9WMS_12 RNA polymerase subunit ABC10-alpha (chains L)
MSREGFVAPSGTDLAAAASGVAPNKHYGVKYTCGACAHNFSLNKSDPVRCKECGHRVIYK
ARTKRMIQFDAR

Ligands and cofactors

IDNameFormulaCopies
SAHS-adenosyl-L-homocysteineC14 H20 N6 O5 S1
MGMagnesium ionMg1
ZNZinc ionZn13

Primary citation

Structural basis of transcription-coupled H3K36 trimethylation by Set2 in coordination with FACT. Kujirai, T., Ehara, H., Ito, T. et al. Sci Adv (2026) 12:eaed1952-eaed1952. DOI 10.1126/sciadv.aed1952 · PubMed

Other PDB entries of the same protein (UniProt C4R4Y0), best resolution first:

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