6LQR
Cryo-EM structure of 90S small subunit preribosomes in transition states (State C)
This is a non-PDB format compatible entry.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (3A) | U3 snoRNA | polymer | 333 | 106503.3 | 1 | Saccharomyces cerevisiae S288C (Baker's yeast) | ||
| 2 | B (5A) | 5' ETS | polymer | 700 | 225543.1 | 1 | Saccharomyces cerevisiae S288C (Baker's yeast) | ||
| 3 | C (SA) | 18S pre-rRNA | polymer | 1809 | 582710.9 | 1 | Saccharomyces cerevisiae S288C (Baker's yeast) | ||
| 4 | D (SC) | 40S ribosomal protein S1-A | polymer | 255 | 28798.5 | 1 | UniProt (P33442) Pfam (PF01015) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps1, RP10A |
| 5 | E (SF) | 40S ribosomal protein S4-A | polymer | 261 | 29469.3 | 1 | UniProt (P0CX35) Pfam (PF08071) Pfam (PF01479) Pfam (PF00900) Pfam (PF00467) Pfam (PF16121) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps4, RP5,S7,YS6 |
| 6 | F (SG) | 40S ribosomal protein S5 | polymer | 225 | 25072.6 | 1 | UniProt (P26783) Pfam (PF00177) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps5, RP14,S2,YS8 |
| 7 | G (SH) | 40S ribosomal protein S6-A | polymer | 236 | 27054.5 | 1 | UniProt (P0CX37) Pfam (PF01092) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps6, RP9,S10,YS4 |
| 8 | H (SI) | 40S ribosomal protein S7-A | polymer | 190 | 21658.2 | 1 | UniProt (P26786) Pfam (PF01251) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps7, RP30,RP40 |
| 9 | I (SJ) | 40S ribosomal protein S8-A | polymer | 200 | 22537.8 | 1 | UniProt (P0CX39) Pfam (PF01201) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps8, RP19,S14,YS9 |
| 10 | J (SK) | 40S ribosomal protein S9-A | polymer | 197 | 22487.9 | 1 | UniProt (O13516) Pfam (PF00163) Pfam (PF01479) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps9, RP21,S13,YP28,YS11 |
| 11 | K (SM) | 40S ribosomal protein S11-A | polymer | 156 | 17785.9 | 1 | UniProt (P0CX47) Pfam (PF16205) Pfam (PF00366) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps11, RP41,S18,YS12 |
| 12 | L (SO) | 40S ribosomal protein S13 | polymer | 151 | 17059.9 | 1 | UniProt (P05756) Pfam (PF08069) Pfam (PF00312) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps13, S27a,YS15 |
| 13 | M (SP) | 40S ribosomal protein S14-A | polymer | 137 | 14562.7 | 1 | UniProt (P06367) Pfam (PF00411) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps14, RP59A |
| 14 | N (SR) | 40S ribosomal protein S16-A | polymer | 143 | 15877.5 | 1 | UniProt (P0CX51) Pfam (PF00380) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps16, RP61R |
| 15 | O (SX) | 40S ribosomal protein S22-B | polymer | 130 | 14650.1 | 1 | UniProt (Q3E7Y3) Pfam (PF00410) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps22, RP50,S24,Small ribosomal subunit protein uS8-B,YP58,YS22 |
| 16 | P (SY) | 40S ribosomal protein S23-A | polymer | 145 | 16073.9 | 1 | UniProt (P0CX29) Pfam (PF00164) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps23, RP37,S28,YS14 |
| 17 | Q (SZ) | 40S ribosomal protein S24-A | polymer | 135 | 15362.8 | 1 | UniProt (P0CX31) Pfam (PF01282) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps24,RP50 |
| 18 | R (Sc) | 40S ribosomal protein S27-A | polymer | 82 | 8893.4 | 1 | UniProt (P35997) Pfam (PF01667) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps27, RP61,YS20 |
| 19 | S (Sd) | 40S ribosomal protein S28-A | polymer | 67 | 7605.8 | 1 | UniProt (Q3E7X9) Pfam (PF01200) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rps28, S33,YS27 |
| 20 | T, U (3B, 3C) | rRNA 2'-O-methyltransferase fibrillarin | polymer | 327 | 34525.4 | 2 | UniProt (P15646) Pfam (PF01269) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Nop1, Histone-glutamine methyltransferase,U3 small nucleolar RNA-associated protein NOP1,U3 snoRNA-associated protein NOP1 |
| 21 | V (3D) | Nucleolar protein 56 | polymer | 504 | 56961.2 | 1 | UniProt (Q12460) Pfam (PF08156) Pfam (PF01798) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Nop56, Ribosome biosynthesis protein SIK1,Suppressor of I kappa b protein 1 |
| 22 | W (3E) | Nucleolar protein 58 | polymer | 511 | 57060.3 | 1 | UniProt (Q12499) Pfam (PF08156) Pfam (PF01798) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Nucleolar protein 5 |
| 23 | X (3F) | Ribosomal RNA-processing protein 9 | polymer | 573 | 65147.0 | 1 | UniProt (Q06506) Pfam (PF00400) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Rrp9 |
| 24 | Y, Z (3G, 3H) | 13 kDa ribonucleoprotein-associated protein | polymer | 126 | 13582.9 | 2 | UniProt (P39990) Pfam (PF01248) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Snu13, Small nuclear ribonucleoprotein-associated protein 1 |
| 25 | AA (A4) | U3 small nucleolar RNA-associated protein 4 | polymer | 776 | 87909.2 | 1 | UniProt (Q06679) Pfam (PF00400) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Utp4, U3 snoRNA-associated protein 4,U three protein 4,U3 protein 4 required for transcription,t-UTP4 |
| 26 | BA (A5) | U3 small nucleolar RNA-associated protein 5 | polymer | 643 | 72079.4 | 1 | UniProt (Q04177) Pfam (PF04003) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Utp5, U3 snoRNA-associated protein 5,U three protein 5,U3 protein 5 required for transcription,t-UTP5 |
| 27 | CA (A8) | U3 small nucleolar RNA-associated protein 8 | polymer | 713 | 80269.6 | 1 | UniProt (P53276) Pfam (PF10395) Pfam (PF22542) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Utp8, U3 snoRNA-associated protein 8,U three protein 8,U3 protein 8 required for transcription,t-UTP8 |
| 28 | DA (A9) | U3 small nucleolar RNA-associated protein 9 | polymer | 575 | 65347.3 | 1 | UniProt (P38882) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Utp9, U3 snoRNA-associated protein 9,U three protein 9,U3 protein 9 required for transcription,t-UTP9 |
| 29 | EA (AE) | U3 small nucleolar RNA-associated protein 10 | polymer | 1769 | 200299.0 | 1 | UniProt (P42945) Pfam (PF12397) Pfam (PF23243) Pfam (PF08146) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 10,U three protein 10,U3 protein 10 required for transcription,t-UTP10 |
| 30 | FA (AF) | U3 small nucleolar RNA-associated protein 15 | polymer | 513 | 57765.3 | 1 | UniProt (Q04305) Pfam (PF00400) Pfam (PF09384) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 15,U three protein 15,U3 protein 15 required for transcription,t-UTP15 |
| 31 | GA (AG) | NET1-associated nuclear protein 1 | polymer | 896 | 101341.7 | 1 | UniProt (Q02931) Pfam (PF00400) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 17,t-17,U3 protein 17 required for transcription,U3 small nucleolar RNA-associated protein 17,U3 snoRNA-associated protein 17 |
| 32 | HA (B1) | Periodic tryptophan protein 2 | polymer | 923 | 104097.0 | 1 | UniProt (P25635) Pfam (PF00400) Pfam (PF04003) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 1,U3 small nucleolar RNA-associated protein 1,U3 snoRNA-associated protein 1 |
| 33 | IA (B2) | U3 small nucleolar RNA-associated protein 12 | polymer | 943 | 106481.1 | 1 | UniProt (Q12220) Pfam (PF00400) Pfam (PF04003) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 12,DOM34-interacting protein 2,U three protein 12 |
| 34 | JA (B3) | U3 small nucleolar RNA-associated protein 13 | polymer | 817 | 91132.6 | 1 | UniProt (Q05946) Pfam (PF00400) Pfam (PF08625) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 13,U three protein 13 |
| 35 | KA (B8) | U3 small nucleolar RNA-associated protein 18 | polymer | 594 | 66494.3 | 1 | UniProt (P40362) Pfam (PF00400) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 18,U three protein 18 |
| 36 | LA (BE) | U3 small nucleolar RNA-associated protein 21 | polymer | 939 | 104927.8 | 1 | UniProt (Q06078) Pfam (PF00400) Pfam (PF04192) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 21,U three protein 21 |
| 37 | MA (B6) | U3 small nucleolar RNA-associated protein 6 | polymer | 440 | 52495.3 | 1 | UniProt (Q02354) Pfam (PF08640) Pfam (PF23240) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 6,U three protein 6 |
| 38 | NA (5B) | Bud site selection protein 21 | polymer | 214 | 24431.0 | 1 | UniProt (Q08492) Pfam (PF08297) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 16,U3 small nucleolar RNA-associated protein 16,U3 snoRNA-associated protein 16 |
| 39 | OA (5C) | U3 small nucleolar RNA-associated protein 7 | polymer | 554 | 62418.6 | 1 | UniProt (P40055) Pfam (PF00400) Pfam (PF08149) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 7,U three protein 7 |
| 40 | PA (5D) | U3 small nucleolar RNA-associated protein 11 | polymer | 250 | 29806.3 | 1 | UniProt (P34247) Pfam (PF03998) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 11,U three protein 11 |
| 41 | QA (5E) | U3 small nucleolar RNA-associated protein MPP10 | polymer | 593 | 67042.5 | 1 | UniProt (P47083) Pfam (PF04006) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein MPP10,M phase phosphoprotein 10 |
| 42 | RA (5F) | U3 small nucleolar ribonucleoprotein protein IMP3 | polymer | 183 | 21928.5 | 1 | UniProt (P32899) Pfam (PF00163) Pfam (PF01479) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNP protein IMP3,Interacting with MPP10 protein 3 |
| 43 | SA (5G) | U3 small nucleolar ribonucleoprotein protein IMP4 | polymer | 290 | 33536.2 | 1 | UniProt (P53941) Pfam (PF04427) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNP protein IMP4,Interacting with MPP10 protein 4 |
| 44 | TA (5H) | Something about silencing protein 10 | polymer | 610 | 70364.4 | 1 | UniProt (Q12136) Pfam (PF04000) Pfam (PF09368) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 3,U3 small nucleolar RNA-associated protein 3,U3 snoRNA-associated protein 11 |
| 45 | UA (5I) | Protein SOF1 | polymer | 489 | 56888.9 | 1 | UniProt (P33750) Pfam (PF00400) Pfam (PF04158) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 small nucleolar RNA-associated protein SOF1,U3 snoRNA-associated protein SOF1 |
| 46 | VA (5J) | rRNA-processing protein FCF2 | polymer | 217 | 25689.2 | 1 | UniProt (Q12035) Pfam (PF08698) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | FAF1 copurifying factor 2 |
| 47 | WA (5K) | rRNA-processing protein FCF1 | polymer | 189 | 21650.7 | 1 | UniProt (Q05498) Pfam (PF04900) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | FAF1-copurifying factor 1 |
| 48 | XA (RA) | Ribosome biogenesis protein ENP2 | polymer | 707 | 81864.2 | 1 | UniProt (P48234) Pfam (PF23098) Pfam (PF23097) Pfam (PF08159) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Essential nuclear protein 2 |
| 49 | YA (RB) | U3 small nucleolar ribonucleoprotein protein LCP5 | polymer | 357 | 40864.4 | 1 | UniProt (P40079) Pfam (PF04000) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | |
| 50 | ZA (RD) | rRNA biogenesis protein RRP5 | polymer | 1729 | 193411.4 | 1 | UniProt (Q05022) Pfam (PF00575) Pfam (PF23240) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Ribosomal RNA-processing protein 5,U3 small nucleolar RNA-associated protein RRP5,U3 snoRNA-associated protein RRP5 |
| 51 | AB (RE) | U3 small nucleolar RNA-associated protein 22 | polymer | 1237 | 140660.1 | 1 | UniProt (P53254) Pfam (PF03813) Pfam (PF17403) Pfam (PF17404) Pfam (PF17405) Pfam (PF17406) Pfam (PF17407) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 22,U three protein 22 |
| 52 | BB (RF) | Ribosomal RNA-processing protein 7 | polymer | 297 | 34526.4 | 1 | UniProt (P25368) Pfam (PF17799) Pfam (PF12923) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | |
| 53 | CB, DB (RG, RH) | Ribosomal RNA small subunit methyltransferase NEP1 | polymer | 252 | 27936.5 | 2 | UniProt (Q06287) Pfam (PF03587) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | 18S rRNA (pseudouridine(1189)-N1)-methyltransferase,18S rRNA Psi1189 methyltransferase,Essential for mitotic growth protein 1,Nucleolar essential protein 1 |
| 54 | EB (RJ) | Ribosome biogenesis protein BMS1 | polymer | 1183 | 135792.3 | 1 | UniProt (Q08965) Pfam (PF00004) Pfam (PF08142) Pfam (PF04950) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | |
| 55 | FB (RK) | RNA 3'-terminal phosphate cyclase-like protein | polymer | 367 | 40220.6 | 1 | UniProt (Q08096) Pfam (PF01137) Pfam (PF05189) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | |
| 56 | GB, HB (RL, RM) | RNA cytidine acetyltransferase | polymer | 1056 | 119509.4 | 2 | UniProt (P53914) Pfam (PF08351) Pfam (PF05127) Pfam (PF13718) Pfam (PF13725) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | 18S rRNA cytosine acetyltransferase,Killer toxin-resistance protein 33,Ribosomal RNA cytidine acetyltransferase 1 |
| 57 | IB (RN) | Nucleolar complex protein 14 | polymer | 810 | 94463.2 | 1 | UniProt (Q99207) Pfam (PF04147) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 2,U3 small nucleolar RNA-associated protein 2,U3 snoRNA-associated protein 2 |
| 58 | JB (RO) | Nucleolar complex protein 4 | polymer | 552 | 63707.8 | 1 | UniProt (Q06512) Pfam (PF03914) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U three protein 19,U3 small nucleolar RNA-associated protein 19,U3 snoRNA-associated protein 19 |
| 59 | KB (RP) | U3 small nucleolar RNA-associated protein 20 | polymer | 2493 | 287915.5 | 1 | UniProt (P35194) Pfam (PF07539) Pfam (PF20416) Pfam (PF23099) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 20,U three protein 20 |
| 60 | LB (RQ) | U3 small nucleolar RNA-associated protein 14 | polymer | 899 | 103189.8 | 1 | UniProt (Q04500) Pfam (PF04615) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | U3 snoRNA-associated protein 14,U three protein 14 |
| 61 | MB (RS) | Essential nuclear protein 1 | polymer | 483 | 55207.4 | 1 | UniProt (P38333) Pfam (PF05291) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | |
| 62 | NB (RT) | Pno1 | polymer | 326 | 36356.5 | 1 | Saccharomyces cerevisiae S288C (Baker's yeast) | ||
| 63 | OB (RY) | Protein BFR2 | polymer | 534 | 61285.0 | 1 | UniProt (Q06631) Pfam (PF13339) Pfam (PF08164) | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Brefeldin A resistance protein 2 |
| 64 | PB (X1) | Unassigned helices | polymer | 347 | 29549.3 | 1 | Saccharomyces cerevisiae S288C (Baker's yeast) | ||
| 65 | QB, RB (Sc, 5K) | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) | |||
| 66 | SB (RJ) | GUANOSINE-5'-TRIPHOSPHATE | non-polymer | 523.2 | 1 | Chemie (GTP) PubChem (177679032) PubChem (135400627) PubChem (135487750) PubChem (136088935) PubChem (136803486) PubChem (135398633) PubChem (135544356) PubChem (135547949) PubChem (135600366) PubChem (135749822) PubChem (136005188) PubChem (136073923) PubChem (136240914) PubChem (136664747) PubChem (136772743) PubChem (136772744) PubChem (136803487) PubChem (137286749) PubChem (164715984) PubChem (171699466) | |||
| 67 | TB (RJ) | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) PubChem (888) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 68 |
| Total formula weight | 4793394.9 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 678.3 | |
| All* | Total formula weight | 4794073.2 |
