Q00403 | SWISS-MODEL Repository

Q00403 (TF2B_HUMAN) Homo sapiens (Human)

Transcription initiation factor IIB UniProtKB InterPro STRING Interactive Modelling

316 aa; Sequence (Fasta) ; 67 identical sequences

It is possible new templates exist for this target since these models were created.

However, an attempt to improve models for this target was made on 2025-07-04. The outcome - failed for technical reasons.

Available Structures

50 Experimental Structures

Description	PDB ID	Oligo-state	Range	Seq id (%)	Ligands
Human core-PIC in the initial transcribing state	5iyc PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P19387; P19388; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875;	7-316	100	2×MG; 11×ZN;
Download Compare Structure Assessment
Human core-PIC in the initial transcribing state (no IIS)	5iyd PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P19387; P19388; P20226; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875;	7-316	100	2×MG; 11×ZN;
Download Compare Structure Assessment
Human holo-PIC in the closed state	6o9l PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P18074; P19387; P19388; P19447; P20226; P23193; P24928; P29083; P29084; P30876; P32780; P35269; P36954; P50613; P51946; P51948; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13888; Q13889; Q6ZYL4; Q92759;	7-316	100	2×MG; 17×ZN; 1×SF4;
Download Compare Structure Assessment
Structure of the human Mediator-bound transcription pre-initiation complex	7lbm PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0JLT2; O15514; O43513; O60244; O75448; O75586; P13984; P18074; P19387; P19388; P19447; P20226; P24928; P29083; P29084; P30876; P32780; P35269; P36954; P50613; P51946; P51948; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13503; Q13888; Q13889; Q15528; Q6P2C8; Q6ZYL4; Q71SY5; Q92759; Q96G25; Q96HR3; Q96RN5; Q9BTT4; Q9BUE0; Q9H204; Q9H944; Q9NPJ6; Q9NVC6; Q9NWA0; Q9NX70; Q9P086; Q9ULK4; Q9Y2X0; Q9Y3C7;	7-316	100.0	2×MG; 16×ZN; 1×SF4;
Download Compare Structure Assessment
Human holo-PIC in the closed state	5iy6 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P18074; P19387; P19388; P19447; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13888; Q13889; Q6ZYL4; Q92759;	7-316	100.0	2×MG; 11×ZN;
Download Compare Structure Assessment
Human holo-PIC in the open state	5iy7 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P18074; P19387; P19388; P19447; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13888; Q13889; Q6ZYL4; Q92759;	7-316	100	2×MG; 11×ZN;
Download Compare Structure Assessment
Human holo-PIC in the initial transcribing state	5iy8 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P18074; P19387; P19388; P19447; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13888; Q13889; Q6ZYL4; Q92759;	7-316	100	2×MG; 11×ZN;
Download Compare Structure Assessment
Human holo-PIC in the initial transcribing state (no IIS)	5iy9 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P18074; P19387; P19388; P19447; P20226; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875; Q13888; Q13889; Q6ZYL4; Q92759;	7-316	100	2×MG; 10×ZN;
Download Compare Structure Assessment
Human core-PIC in the closed state	5iya PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P19387; P19388; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875;	7-316	100.0	2×MG; 11×ZN;
Download Compare Structure Assessment
Human core-PIC in the open state	5iyb PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O15514; P13984; P19387; P19388; P20226; P23193; P24928; P29083; P29084; P30876; P35269; P36954; P52434; P52435; P52655; P52657; P53803; P61218; P62487; P62875;	7-316	100	2×MG; 11×ZN;
Download Compare Structure Assessment
p53-bound TFIID-based core PIC on HDM2 promoter	7edx PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O00268; P13984; P20226; P21675; P35269; P49848; P52655; P52657; P60899; Q12962; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q7Z7C8;	13-316	100.0	9×ZN; 1×MG;
Download Compare Structure Assessment
TFIID-based core PIC on SCP promoter	7eg7 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O00268; P13984; P20226; P21675; P35269; P49848; P52655; P52657; P60899; Q12962; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q7Z7C8;	13-316	100.0	9×ZN; 1×MG;
Download Compare Structure Assessment
TFIID-based core PIC on PUMA promoter	7eg8 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O00268; P13984; P20226; P21675; P35269; P49848; P52655; P52657; P60899; Q12962; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q7Z7C8;	13-316	100.0	9×ZN; 1×MG;
Download Compare Structure Assessment
TFIID-based intermediate PIC on SCP promoter	7eg9 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O00268; P13984; P20226; P21675; P29083; P29084; P35269; P49848; P52655; P52657; P60899; Q12962; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q7Z7C8;	13-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
TFIID-based intermediate PIC on PUMA promoter	7ega PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O00268; P13984; P20226; P21675; P29083; P29084; P35269; P49848; P52655; P52657; P60899; Q12962; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q7Z7C8;	13-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
p53-bound TFIID-based holo PIC on HDM2 promoter	7egc PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P24928; P29083; P29084; P32780; P35269; P49848; P50613; P51946; P51948; P52655; P52657; P60899; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	13-316	100.0	16×ZN; 1×SF4; 1×MG;
Download Compare Structure Assessment
Structure of transcribing complex 2 (TC2), the initially transcribing complex with Pol II positione…	8wak PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×W0F; 1×MG;
Download Compare Structure Assessment
Structure of transcribing complex 3 (TC3), the initially transcribing complex with Pol II positione…	8wal PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×W0F; 1×MG;
Download Compare Structure Assessment
Structure of transcribing complex 4 (TC4), the initially transcribing complex with Pol II positione…	8wan PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
Structure of transcribing complex 5 (TC5), the initially transcribing complex with Pol II positione…	8wao PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
Structure of transcribing complex 6 (TC6), the initially transcribing complex with Pol II positione…	8wap PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
Structure of transcribing complex 7 (TC7), the initially transcribing complex with Pol II positione…	8waq PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
RNA polymerase II pre-initiation complex with the proximal +1 nucleosome (PIC-Nuc10W)	8byq PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P02281; P06897; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P50613; P51946; P51948; P52655; P52657; P60899; P62799; P84233; Q13888; Q13889; Q6ZYL4; Q92759;	14-316	100.0	1×SF4; 16×ZN; 1×MG;
Download Compare Structure Assessment
Structure of transcribing complex 8 (TC8), the initially transcribing complex with Pol II positione…	8war PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
Human Mediator with RNA Polymerase II Pre-initiation complex	7nvr PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; A0JLT2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O43513; O60244; O75586; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P50613; P51946; P51948; P52655; P52657; P60899; Q13503; Q13888; Q13889; Q15528; Q6P2C8; Q6ZYL4; Q92759; Q96G25; Q96HR3; Q9BTT4; Q9BUE0; Q9H204; Q9H944; Q9NPJ6; Q9NVC6; Q9NWA0; Q9P086; Q9Y3C7;	14-316	100.0	1×SF4; 18×ZN; 1×MG;
Download Compare Structure Assessment
Structure of transcribing complex 9 (TC9), the initially transcribing complex with Pol II positione…	8was PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A493TD97; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P29083; P29084; P32780; P35269; P49848; P51948; P52655; P52657; P60899; P85421; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG; 1×W0F;
Download Compare Structure Assessment
RNA polymerase II core pre-initiation complex with closed promoter DNA in proximal position	7nvs PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P20226; P29083; P29084; P35269; P52655; P52657; P60899;	14-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II core pre-initiation complex with closed promoter DNA in distal position	7nvt PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P20226; P29083; P29084; P35269; P52655; P52657; P60899;	14-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II core pre-initiation complex with open promoter DNA	7nvu PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P20226; P29083; P29084; P35269; P52655; P52657; P60899;	14-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II pre-initiation complex with the distal +1 nucleosome (PIC-Nuc18W)	8bvw PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P02281; P06897; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P50613; P51946; P51948; P52655; P52657; P60899; P62799; P84233; Q13888; Q13889; Q6ZYL4; Q92759;	14-316	100.0	1×SF4; 17×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II pre-initiation complex with closed promoter DNA in proximal position	7nvy PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P51948; P52655; P52657; P60899; Q13888; Q13889; Q6ZYL4; Q92759;	14-316	100.0	1×SF4; 17×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II pre-initiation complex with closed promoter DNA in distal position	7nvz PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P51948; P52655; P52657; P60899; Q13888; Q13889; Q6ZYL4; Q92759;	14-316	100.0	1×SF4; 17×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II pre-initiation complex with open promoter DNA	7nw0 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A7M4DUC2; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P18074; P19447; P20226; P29083; P29084; P32780; P35269; P51948; P52655; P52657; P60899; Q13888; Q13889; Q6ZYL4; Q92759;	14-316	100.0	1×SF4; 15×ZN; 1×ADP; 2×MG; 1×BEF;
Download Compare Structure Assessment
RNA polymerase II core pre-initiation complex with the proximal +1 nucleosome (cPIC-Nuc10W)	8bz1 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P02281; P06897; P13984; P20226; P35269; P52655; P52657; P60899; P62799; P84233;	14-316	100.0	9×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II core initially transcribing complex with an ordered RNA of 10 nt	8s52 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A7M4DUC2; A0A8W4F9W9; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P20226; P29083; P29084; P35269; P52655; P52657; P60899;	14-316	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC)	7zx8 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O75971; P13984; P20226; P35269; P52655; P52657; P60899; Q16533; Q5SXM2; Q92966;	14-316	100.0	11×ZN; 1×MG;
Download Compare Structure Assessment
TFIID-based holo PIC on SCP promoter	7egb PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A481BYI6; A0A4X1TRS6; A0A4X1TVZ5; A0A4X1VEK9; A0A4X1VKG7; A0A4X1VTX4; F1RKE4; I3LCB2; I3LCH3; O00268; P13984; P18074; P19447; P20226; P21675; P24928; P29083; P29084; P32780; P35269; P49848; P50613; P51946; P51948; P52655; P52657; P60899; Q12962; Q13888; Q13889; Q15542; Q15543; Q15544; Q15545; Q16514; Q16594; Q5VWG9; Q6P1X5; Q6ZYL4; Q7Z7C8; Q92759;	14-316	100.0	17×ZN; 1×SF4; 1×MG;
Download Compare Structure Assessment
Structure of SNAPc containing Pol II pre-initiation complex bound to U5 snRNA promoter (CC)	7zwd PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O75971; P13984; P20226; P35269; P52655; P52657; P60899; Q16533; Q5SXM2; Q92966;	14-314	100.0	11×ZN; 1×MG;
Download Compare Structure Assessment
Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (CC)	7zx7 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VYD0; A0A8D1DPV6; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; O75971; P13984; P20226; P35269; P52655; P52657; P60899; Q16533; Q5SXM2; Q92966;	14-314	100.0	11×ZN; 1×MG;
Download Compare Structure Assessment
RNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt	8s5n PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer A0A287ADR4; A0A4X1TRS6; A0A4X1VEK9; A0A4X1VKG7; A0A7M4DUC2; A0A8W4F9W9; F1RKE4; I3LCB2; I3LCH3; I3LGP4; I3LSI7; P13984; P20226; P29083; P29084; P35269; P52655; P52657; P60899;	14-306	100.0	10×ZN; 1×MG;
Download Compare Structure Assessment
CRYSTAL STRUCTURE OF A HUMAN TBP CORE DOMAIN-HUMAN TFIIB CORE DOMAIN COMPLEX BOUND TO AN EXTENDED, …	1c9b PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer P20226;	110-316	100
Download Compare Structure Assessment
Model for VP16 binding to TFIIB	2phg PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer P06492;	111-316	99.52
Download Compare Structure Assessment
TFIIB (HUMAN CORE DOMAIN)/TBP (A.THALIANA)/TATA ELEMENT TERNARY COMPLEX	1vol PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer P28147;	113-316	98.53
Download Compare Structure Assessment
Structure of SNAPc containing Pol II pre-initiation complex bound to U1 snRNA promoter (OC)	7zxe PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O75971; P20226; P52655; P52657; Q16533; Q5SXM2; Q92966;	114-314	100	2×ZN;
Download Compare Structure Assessment
Structure of SNAPc:TBP-TFIIA-TFIIB sub-complex bound to U5 snRNA promoter	7zwc PDBe PDBe-KB PDBj PDBsum RCSB SMTL	Heteromer O75971; P20226; P52655; P52657; Q16533; Q5SXM2; Q92966;	114-314	100	2×ZN;
Download Compare Structure Assessment
Apo form of the C-terminal region of human Transcription Factor IIB	5wh1 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	monomer	108-316	100.0	5×SO4;
Download Compare Structure Assessment
NMR STUDIES OF HUMAN GENERAL TRANSCRIPTION FACTOR TFIIB: DYNAMICS AND INTERACTION WITH VP16 ACTIVAT…	1tfb PDBe PDBe-KB PDBj PDBsum RCSB SMTL	monomer	111-316	99.52
Download Compare Structure Assessment
SOLUTION STRUCTURE OF HUMAN TFIIB N-TERMINAL DOMAIN	1dl6 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	monomer	2-59	100	1×ZN;
Download Compare Structure Assessment
RDC-derived models of the zinc ribbon domain of human general transcription TFIIB (zinc bound struc…	1rly PDBe PDBe-KB PDBj PDBsum RCSB SMTL	monomer	2-59	100	1×ZN;
Download Compare Structure Assessment
RDC-derived models of the zinc ribbon domain of human general transcription factor TFIIB (zinc free…	1ro4 PDBe PDBe-KB PDBj PDBsum RCSB SMTL	monomer	2-59	100
Download Compare Structure Assessment

2 SWISS-MODEL models

Template	Oligo-state	QMEANDisCo	Range	Ligands	Trg-Tpl Seq id (%)
5iy9.1.M	monomer	0.76	7-316	1×ZN;	100.00
Download ModelCIF format PDB format Model report Compare Structure Assessment
2whb.2.B	monomer	0.67	115-302		13.30
Download ModelCIF format PDB format Model report Compare Structure Assessment

	Model ID	Oligo-state	Avg pLDDT	Range	Trg-Mdl Seq Id (%)

	Model ID	Oligo-state	Avg Confidence	Range	Trg-Mdl Seq id (%)

Q00403 (TF2B_HUMAN) Homo sapiens (Human)

Transcription initiation factor IIB UniProtKBInterProSTRINGInteractive Modelling

Available Structures

50 Experimental Structures

2 SWISS-MODEL models

Alignments

Background

Resolution

Transcription initiation factor IIB UniProtKB InterPro STRING Interactive Modelling