9MR4 image
Deposition Date 2025-01-06
Release Date 2025-08-20
Last Version Date 2025-12-10
Entry Detail
PDB ID:
9MR4
Keywords:
RIBOSOME
Title:
NAC: Ribosome nascent chain complex(Oxa1L)
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Oryctolagus cuniculus (Taxon ID: 9986)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.65 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
9MR4 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S27a
Gene (Uniprot):RPS27A
Chain IDs:B (auth: 0)
Chain Length:156
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SK22 Pfam ID:PF00240, PF01599
Polymer Type:polyribonucleotide
Molecule:tRNA
Chain IDs:AB (auth: 2)
Chain Length:76
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:C (auth: 4)
Chain Length:6
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:28S rRNA
Chain IDs:BB (auth: 5)
Chain Length:3543
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RACK1
Gene (Uniprot):RACK1
Chain IDs:D (auth: 6)
Chain Length:317
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SJB4 Pfam ID:PF00400
Polymer Type:polyribonucleotide
Molecule:5S rRNA
Chain IDs:E (auth: 7)
Chain Length:120
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:5.8S rRNA
Chain IDs:CB (auth: 8)
Chain Length:156
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eS29
Gene (Uniprot):RPS29
Chain IDs:F (auth: 9)
Chain Length:56
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U7M4 Pfam ID:PF00253
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L8
Gene (Uniprot):RPL8
Chain IDs:G (auth: A)
Chain Length:257
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TT27 Pfam ID:PF00181, PF03947
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S30
Gene (Uniprot):FAU
Chain IDs:CC (auth: AA)
Chain Length:133
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T8A2 Pfam ID:PF00240, PF04758
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L3
Gene (Uniprot):RPL3
Chain IDs:H (auth: B)
Chain Length:403
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TL06 Pfam ID:PF00297
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7
Gene (Uniprot):RPS7
Chain IDs:GB (auth: BB)
Chain Length:194
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SVB0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L4
Gene (Uniprot):RPL4
Chain IDs:I (auth: C)
Chain Length:115
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SVW5 Pfam ID:PF00573, PF14374
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8
Gene (Uniprot):RPS8
Chain IDs:HB (auth: CC)
Chain Length:208
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TJW1 Pfam ID:PF01201
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein uL18
Gene (Uniprot):RPL5
Chain IDs:J (auth: D)
Chain Length:125
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:P19949
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S9 (Predicted)
Gene (Uniprot):RPS9
Chain IDs:IB (auth: DD)
Chain Length:194
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:B7NZS8 Pfam ID:PF00163, PF01479
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L6
Gene (Uniprot):RPL6
Chain IDs:DB (auth: E)
Chain Length:135
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SKF7 Pfam ID:PF03868, PF01159
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S11
Gene (Uniprot):RPS11
Chain IDs:KB (auth: EE)
Chain Length:158
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TRM4 Pfam ID:PF16205, PF00366
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transcription factor BTF3
Gene (Uniprot):BTF3
Chain IDs:DC (auth: EF)
Chain Length:162
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P20290 Pfam ID:PF01849
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nascent polypeptide-associated complex subunit alpha
Gene (Uniprot):NACA
Chain IDs:EC (auth: EG)
Chain Length:215
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q13765 Pfam ID:PF01849, PF19026
Polymer Type:polypeptide(L)
Molecule:Nascent Chain
Chain IDs:FC (auth: EH)
Chain Length:33
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uL30
Gene (Uniprot):RPL7
Chain IDs:K (auth: F)
Chain Length:249
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SV32 Pfam ID:PF08079, PF00327
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S28
Gene (Uniprot):RPS28
Chain IDs:BC (auth: FF)
Chain Length:69
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TIB4 Pfam ID:PF01200
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7a
Gene (Uniprot):RPL7A
Chain IDs:L (auth: G)
Chain Length:319
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1STW0 Pfam ID:PF01248
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS10
Gene (Uniprot):RPS20
Chain IDs:TB (auth: GG)
Chain Length:119
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SIZ2 Pfam ID:PF00338
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L9
Gene (Uniprot):RPL9
Chain IDs:M (auth: H)
Chain Length:192
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SWI6 Pfam ID:PF00347
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit protein eS21
Gene (Uniprot):RPS21
Chain IDs:UB (auth: HH)
Chain Length:83
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TM82 Pfam ID:PF01249
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L10
Gene (Uniprot):RPL10
Chain IDs:N (auth: I)
Chain Length:214
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:B7NZQ2 Pfam ID:PF00252
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS13
Gene (Uniprot):RPS18
Chain IDs:RB (auth: II)
Chain Length:152
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TPG3 Pfam ID:PF00416
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L11
Gene (Uniprot):RPL11
Chain IDs:O (auth: J)
Chain Length:178
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TUB8 Pfam ID:PF00281, PF00673
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27
Gene (Uniprot):RPS27
Chain IDs:AC (auth: JJ)
Chain Length:84
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TZ76 Pfam ID:PF01667
Polymer Type:polyribonucleotide
Molecule:18S rRNA
Chain IDs:P (auth: K)
Chain Length:70
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eS17
Gene (Uniprot):RPS17
Chain IDs:QB (auth: KK)
Chain Length:135
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TU13 Pfam ID:PF00833
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL13
Gene (Uniprot):RPL13
Chain IDs:Q (auth: L)
Chain Length:211
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TKB3 Pfam ID:PF01294
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eS26
Gene (Uniprot):RPS26
Chain IDs:ZB (auth: LL)
Chain Length:115
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TFE8 Pfam ID:PF01283
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L14
Gene (Uniprot):RPL14
Chain IDs:R (auth: M)
Chain Length:128
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SZ12 Pfam ID:PF01929
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit protein uS11
Gene (Uniprot):RPS14
Chain IDs:NB (auth: MM)
Chain Length:151
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T1F0 Pfam ID:PF00411
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L15
Gene (Uniprot):RPL15
Chain IDs:S (auth: N)
Chain Length:204
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T0C1 Pfam ID:PF00827
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit protein eS24
Gene (Uniprot):RPS24
Chain IDs:XB (auth: NN)
Chain Length:133
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:A0A5F9D2E6 Pfam ID:PF01282
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein uL13
Gene (Uniprot):RPL13A
Chain IDs:T (auth: O)
Chain Length:111
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TVS8
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eS25
Gene (Uniprot):RPS25
Chain IDs:YB (auth: OO)
Chain Length:124
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TDB3 Pfam ID:PF03297
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein uL22
Gene (Uniprot):RPL17
Chain IDs:U (auth: P)
Chain Length:183
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SCJ6 Pfam ID:PF00237
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eS19
Gene (Uniprot):RPS19
Chain IDs:SB (auth: PP)
Chain Length:145
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TN62 Pfam ID:PF01090
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL18
Gene (Uniprot):RPL18
Chain IDs:V (auth: Q)
Chain Length:295
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TFE0 Pfam ID:PF17135
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S13
Gene (Uniprot):RPS13
Chain IDs:MB (auth: QQ)
Chain Length:151
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SP51 Pfam ID:PF08069, PF00312
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL19
Gene (Uniprot):RPL19
Chain IDs:W (auth: R)
Chain Length:196
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TYL6 Pfam ID:PF01280
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S12
Gene (Uniprot):RPS12
Chain IDs:LB (auth: RR)
Chain Length:132
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SFR8 Pfam ID:PF01248
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL20
Gene (Uniprot):RPL18A
Chain IDs:X (auth: S)
Chain Length:176
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TTY7 Pfam ID:PF01775
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:S10_plectin domain-containing protein
Chain IDs:JB (auth: SS)
Chain Length:165
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TPV3 Pfam ID:PF03501
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL21
Gene (Uniprot):RPL21
Chain IDs:Y (auth: T)
Chain Length:160
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SHQ2 Pfam ID:PF01157
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S15a
Gene (Uniprot):RPS15A
Chain IDs:VB (auth: TT)
Chain Length:130
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TG89 Pfam ID:PF00410
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL22
Gene (Uniprot):RPL22
Chain IDs:Z (auth: U)
Chain Length:264
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TSG1 Pfam ID:PF01776
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS9
Gene (Uniprot):RPS16
Chain IDs:PB (auth: UU)
Chain Length:146
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SGX4 Pfam ID:PF00380
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L23
Gene (Uniprot):RPL23
Chain IDs:AA (auth: V)
Chain Length:293
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T6D1 Pfam ID:PF00238
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS12
Gene (Uniprot):RPS23
Chain IDs:WB (auth: VV)
Chain Length:143
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SZ47 Pfam ID:PF00164
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL24
Gene (Uniprot):RPL24
Chain IDs:BA (auth: W)
Chain Length:157
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SE28 Pfam ID:PF01246
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS19
Gene (Uniprot):RPS15
Chain IDs:OB (auth: WW)
Chain Length:145
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U0Q2 Pfam ID:PF00203
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL23
Gene (Uniprot):RPL23A
Chain IDs:CA (auth: X)
Chain Length:156
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SE76 Pfam ID:PF03939, PF00276
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uL24
Gene (Uniprot):RPL26
Chain IDs:DA (auth: Y)
Chain Length:145
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SQH0 Pfam ID:PF16906, PF00467
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27
Gene (Uniprot):RPL27
Chain IDs:EA (auth: Z)
Chain Length:249
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TXF6 Pfam ID:PF00467, PF01777
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27a
Gene (Uniprot):RPL27A
Chain IDs:FA (auth: a)
Chain Length:257
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SNY0 Pfam ID:PF00828
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL29
Gene (Uniprot):RPL29
Chain IDs:EB (auth: b)
Chain Length:403
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SGR6 Pfam ID:PF01779
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL30
Gene (Uniprot):RPL30
Chain IDs:GA (auth: c)
Chain Length:115
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TDL2 Pfam ID:PF01248
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL31
Gene (Uniprot):RPL31
Chain IDs:HA (auth: d)
Chain Length:125
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SHG0 Pfam ID:PF01198
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL32
Gene (Uniprot):RPL32
Chain IDs:IA (auth: e)
Chain Length:135
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TUN8 Pfam ID:PF01655
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL33
Gene (Uniprot):RPL35A
Chain IDs:JA (auth: f)
Chain Length:249
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SF08 Pfam ID:PF01247
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L34
Gene (Uniprot):RPL34
Chain IDs:KA (auth: g)
Chain Length:319
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TXG5 Pfam ID:PF01199
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL35
Gene (Uniprot):RPL35
Chain IDs:LA (auth: h)
Chain Length:192
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SIT5 Pfam ID:PF00831
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL36
Gene (Uniprot):RPL36
Chain IDs:MA (auth: i)
Chain Length:214
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TTQ5 Pfam ID:PF01158
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L37
Gene (Uniprot):RPL37
Chain IDs:NA (auth: j)
Chain Length:178
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:U3KPD5 Pfam ID:PF01907
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL38
Gene (Uniprot):RPL38
Chain IDs:OA (auth: k)
Chain Length:70
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U001 Pfam ID:PF01781
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL39
Gene (Uniprot):LOC100343258
Chain IDs:PA (auth: l)
Chain Length:211
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TTN1 Pfam ID:PF00832
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ubiquitin-ribosomal protein eL40 fusion protein
Gene (Uniprot):UBA52
Chain IDs:A (auth: m)
Chain Length:128
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:P0DXC2
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL41
Gene (Uniprot):RPL41
Chain IDs:QA (auth: n)
Chain Length:204
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:A0A087WNH4 Pfam ID:PF05162
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit protein eL42
Gene (Uniprot):RPL36A
Chain IDs:RA (auth: o)
Chain Length:111
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T040 Pfam ID:PF00935
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL43
Gene (Uniprot):RPL37A
Chain IDs:SA (auth: p)
Chain Length:183
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SY53 Pfam ID:PF01780
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:uS2 (SA)
Gene (Uniprot):RPSA
Chain IDs:TA (auth: q)
Chain Length:295
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TLT8 Pfam ID:PF00318, PF16122
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eL28
Gene (Uniprot):RPL28
Chain IDs:UA (auth: r)
Chain Length:196
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U7L1 Pfam ID:PF01778
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S3a
Gene (Uniprot):RPS3A
Chain IDs:VA (auth: u)
Chain Length:264
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SS70 Pfam ID:PF01015
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit protein uS5
Gene (Uniprot):RPS2
Chain IDs:WA (auth: v)
Chain Length:293
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SWM1 Pfam ID:PF00333, PF03719
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S3
Gene (Uniprot):RPS3
Chain IDs:XA (auth: w)
Chain Length:157
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TNM3 Pfam ID:PF07650, PF00189
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4
Gene (Uniprot):RPS4X
Chain IDs:YA (auth: x)
Chain Length:156
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TK17 Pfam ID:PF08071, PF00900, PF00467, PF16121
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S5
Gene (Uniprot):RPS5
Chain IDs:FB (auth: y)
Chain Length:145
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TFM5 Pfam ID:PF00177
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6
Gene (Uniprot):RPS6
Chain IDs:ZA (auth: z)
Chain Length:249
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TM55 Pfam ID:PF01092
Ligand Molecules
MG
ZN
Primary Citation
A molecular switch in NAC prevents mitochondrial protein mistargeting by SRP.
Biorxiv ? ? ? (2025)
PMID: 40766658 DOI: 10.1101/2025.07.29.667405

Abstact

The nascent polypeptide-associated complex (NAC) co-translationally screens all nascent proteins and regulates their access to the signal recognition particle (SRP) to ensure the fidelity of protein targeting to the endoplasmic reticulum (ER). However, the mechanism by which NAC prevents the mistargeting of nascent mitochondrial proteins remains unclear. Here, we identified a molecular switch in NAC that allows its central barrel domain to adopt a stabilized conformation on ribosomes exposing a mitochondrial targeting sequence (MTS). Mutations of the MTS on the nascent chain or in the NAC switch region increases NAC barrel dynamics and reduces its binding to the ribosome. This leads to an impaired ability of NAC to prevent mistargeting by SRP and causes ER stress in human cells. Our work reveals how NAC detects nascent mitochondrial proteins early in translation and prevents their promiscuous access to SRP, elucidating the structural basis that underlies this role and providing novel insights into protein targeting fidelity with broader implications for cellular proteostasis.

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Disease

Primary Citation of related structures
9MR4
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