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6GB2

Unique features of mammalian mitochondrial translation initiation revealed by cryo-EM. This file contains the 39S ribosomal subunit.

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D, E...
(CL, DL, EL, FL, GL...)
Mitochondrial ribosomal protein L12polymer19821269.07UniProt (A0A287ARV8)
Pfam (PF16320)
Pfam (PF00542)
UniProt (by SIFTS) (A0A4X1U6S6)
Sus scrofa (Pig)
2G
(B0)
Mitochondrial ribosomal protein L27polymer14815943.71UniProt (F1RT79)
Pfam (PF01016)
UniProt (by SIFTS) (A0A4X1U0F6)
Sus scrofa (Pig)
3H
(B1)
Mitochondrial ribosomal protein L28polymer25630149.01UniProt (A0A286ZTW8)
Pfam (PF00830)
Sus scrofa (Pig)
4I
(B2)
Mitochondrial ribosomal protein L47polymer25230085.11UniProt (F1SGC7)
Pfam (PF06984)
Sus scrofa (Pig)
5J
(B3)
'Mitochondrial ribosomal protein L30polymer16118585.81UniProt (F1STE5)
Pfam (PF00327)
UniProt (by SIFTS) (A0A8D1MIP3)
Sus scrofa (Pig)
6K
(B4)
'Mitochondrial ribosomal protein L55polymer12615156.51UniProt (I3L9J0)
Pfam (PF09776)
UniProt (by SIFTS) (A0A4X1ULI6)
Sus scrofa (Pig)
7L
(B5)
Mitochondrial ribosomal protein L32polymer18821537.91Sus scrofa (Pig)bL32m
8M
(B6)
Mitochondrial ribosomal protein L33polymer657508.11UniProt (A0A286ZU68)
Pfam (PF00471)
UniProt (by SIFTS) (A0A4X1TLP9)
Sus scrofa (Pig)
9N
(B7)
Mitochondrial ribosomal protein L34polymer9510871.71UniProt (A0A287A119)
Pfam (PF00468)
UniProt (by SIFTS) (A0A4X1UFR4)
Sus scrofa (Pig)
10O
(B8)
Mitochondrial ribosomal protein L35polymer18821548.51UniProt (F1SVC5)Sus scrofa (Pig)
11P
(B9)
Ribosomal proteinpolymer10010841.01UniProt (A0A287A731)
Pfam (PF00444)
Sus scrofa (Pig)
12Q
(BA)
16S ribosomal RNA, mitochondrialpolymer1571504852.01GenBank (33320725)Sus scrofa
13R
(BB)
CP tRNAPhe, mitochondrialpolymer7323402.01GenBank (76262549)Sus scrofa
14S
(BC)
Translation initiation factor IF-2, mitochondrialpolymer65772811.21UniProt (P46199)
Pfam (PF22042)
Pfam (PF11987)
Pfam (PF00009)
Homo sapiens (Human)IF2(mt)
15T
(BD)
Mitochondrial ribosomal protein L2polymer30633270.91UniProt (F1RRN2)
Pfam (PF00181)
Sus scrofa (Pig)
16U
(BE)
ICT1polymer34838427.21Sus scrofa (Pig)Mitochondrial ribosomal protein L3
17V
(BF)
Mitochondrial ribosomal protein L4polymer29433251.51UniProt (A0A287B9C4)
Pfam (PF00573)
Sus scrofa (Pig)
18W
(BI)
Mitochondrial ribosomal protein L9polymer26830373.41UniProt (I3LR45)
Pfam (PF01281)
Pfam (PF22078)
Sus scrofa (Pig)
19X
(BJ)
Mitochondrial ribosomal protein L10polymer26229449.71UniProt (F1RWJ0)
Pfam (PF00466)
Sus scrofa (Pig)
20Y
(BK)
Mitochondrial ribosomal protein L11polymer19220809.31UniProt (F1RU54)
Pfam (PF00298)
Sus scrofa (Pig)
21AA
(BN)
Mitochondrial ribosomal protein L13polymer17820633.81Sus scrofa (Pig)uL13m
22BA
(BO)
Mitochondrial ribosomal protein L14polymer14515955.61Sus scrofa (Pig)uL14m
23CA
(BP)
Mitochondrial ribosomal protein L15polymer29633481.71UniProt (F1RSH0)Sus scrofa (Pig)
24DA
(BQ)
Mitochondrial ribosomal protein L16polymer25128680.51UniProt (F1RI89)
Pfam (PF00252)
Sus scrofa (Pig)
25EA
(BR)
Mitochondrial ribosomal protein L17polymer16919268.21UniProt (F1RMQ4)
Pfam (PF01196)
Sus scrofa (Pig)
26FA
(BS)
Mitochondrial ribosomal protein L18polymer18020582.61UniProt (A0A286ZNK1)
Pfam (PF00861)
Sus scrofa (Pig)
27GA
(BT)
Mitochondrial ribosomal protein L19polymer29233441.51Sus scrofa (Pig)
28HA
(BU)
Mitochondrial ribosomal protein L20polymer14917554.81UniProt (A0A286ZU56)
Pfam (PF00453)
Sus scrofa (Pig)
29IA
(BV)
Mitochondrial ribosomal protein L21polymer20923154.91UniProt (F1RY70)
Pfam (PF00829)
Sus scrofa (Pig)
30JA
(BW)
Mitochondrial ribosomal protein L22polymer21024313.41UniProt (F1RQC9)
Pfam (PF00237)
UniProt (by SIFTS) (A0A4X1TXR4)
Sus scrofa (Pig)
31KA
(BX)
Mitochondrial ribosomal protein L23polymer15017643.21UniProt (A0A286ZZC6)Sus scrofa (Pig)
32LA
(BY)
Mitochondrial ribosomal protein L24polymer21624893.51UniProt (F1RHJ1)
Pfam (PF00467)
Pfam (PF17136)
Sus scrofa (Pig)
33MA
(Ba)
Mitochondrial ribosomal protein L37polymer42347918.01UniProt (A0A287BIV6)
Pfam (PF07147)
Sus scrofa (Pig)
34NA
(Bb)
Mitochondrial ribosomal protein L38polymer38044656.41UniProt (F1RW03)
Pfam (PF01161)
Sus scrofa (Pig)
35OA
(Bc)
Mitochondrial ribosomal protein L39polymer33438523.41UniProt (F1SHP6)Sus scrofa (Pig)
36PA
(Bd)
Mitochondrial ribosomal protein L40polymer20624075.71UniProt (A0A286ZP98)
Pfam (PF09812)
Sus scrofa (Pig)
37QA
(Be)
Mitochondrial ribosomal protein L41polymer13515073.41UniProt (A0A287AWS0)
Pfam (PF09809)
UniProt (by SIFTS) (A0A8D1F1K9)
Sus scrofa (Pig)
38RA
(Bf)
Mitochondrial ribosomal protein L42polymer14216680.21UniProt (A0A287BQA1)
Pfam (PF10210)
Sus scrofa (Pig)
39SA
(Bg)
Mitochondrial ribosomal protein L43polymer15917728.11UniProt (F1S8U4)
Pfam (PF05047)
Sus scrofa (Pig)
40TA
(Bh)
Mitochondrial ribosomal protein L44polymer33237527.21UniProt (F1SR64)
Pfam (PF22935)
Pfam (PF22892)
Sus scrofa (Pig)
41UA
(Bi)
Mitochondrial ribosomal protein L45polymer30635331.81UniProt (I3LGM5)
Pfam (PF04280)
Sus scrofa (Pig)
42VA
(Bj)
Mitochondrial ribosomal protein L46polymer27932216.01UniProt (F1SRT0)
Pfam (PF11788)
Sus scrofa (Pig)
43WA
(Bk)
Mitochondrial ribosomal protein L48polymer21223749.51UniProt (F1SUS9)
Pfam (PF00338)
UniProt (by SIFTS) (A0A480J9Z6)
Sus scrofa (Pig)
44XA
(Bl)
Mrpl34polymer16618957.81UniProt (A0A0R4J8D6)
Pfam (PF05046)
Sus scrofa (Pig)
45YA
(Bm)
Mitochondrial ribosomal protein L50polymer15918351.01UniProt (I3L9H6)
Pfam (PF10501)
Sus scrofa (Pig)
46ZA
(Bn)
Mitochondrial ribosomal protein L51polymer12815249.01UniProt (A0A287BE26)
Pfam (PF10244)
UniProt (by SIFTS) (A0A8D1P1C8)
Sus scrofa (Pig)
47AB
(Bo)
Mitochondrial ribosomal protein L52polymer12413813.71UniProt (F1S9B7)
Pfam (PF18699)
Sus scrofa (Pig)
48BB
(Bp)
mL53, MRPL53polymer11212015.71Sus scrofa (Pig)
49CB
(Bq)
Uncharacterized proteinpolymer13815957.41UniProt (I3LN63)
Pfam (PF08561)
Sus scrofa (Pig)
50DB
(Bt)
Mitochondrial ribosomal protein L57polymer10212001.91UniProt (A0A287BP93)
Pfam (PF14978)
Sus scrofa (Pig)
51EB
(Bu)
Mitochondrial ribosomal protein L58polymer20523545.91UniProt (A0A286ZJR2)
Pfam (PF00472)
Sus scrofa (Pig)
52FB
(Bv)
'Mitochondrial ribosomal protein L59polymer22225815.01UniProt (A0A286ZXA6)
Pfam (PF10147)
Sus scrofa (Pig)
53GB
(Bw)
mL65, MRPS30polymer43349100.51Sus scrofa (Pig)
54HB
(Bx)
Mitochondrial ribosomal protein S18Apolymer19622273.11UniProt (F1RRH6)
Pfam (PF01084)
Sus scrofa (Pig)
55IB
(Bz)
unassigned secondary structure elementspolymer825846.41Sus scrofa (Pig)
56JB
(AV)
P-site fMet-tRNAMet, mitochondrialpolymer7122664.51GenBank (1208989970)Homo sapiens
57AC, AD, AE, AF, AG...
(BA, Bt, B3, BB, BC...)
MAGNESIUM IONnon-polymer24.3216Chemie (MG)
58LB, MB, SJ
(B5, B9, BJ)
ZINC IONnon-polymer65.43Chemie (ZN)
59HJ, IJ
(BA)
GUANOSINE-5'-MONOPHOSPHATEnon-polymer363.22Chemie (5GP)
60JJ, WJ
(BA, BR)
SPERMINEnon-polymer202.32Chemie (SPM)
61MJ
(BC)
5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATEnon-polymer539.21Chemie (GSP)
62OJ
(BC)
SODIUM IONnon-polymer23.01Chemie (NA)
63BK
(AV)
N-FORMYLMETHIONINEnon-polymer177.21Chemie (FME)
64CK
(BC)
waterwater18.02Chemie (HOH)
Sequence modifications
BB: 1 - 71 (GenBank: 76262549)
PDBExternal DatabaseDetails
C 72-insertion
A 73-insertion
BC: 78 - 727 (UniProt: P46199)
PDBExternal DatabaseDetails
Ser 71-expression tag
Gly 72-expression tag
Gly 73-expression tag
Ser 74-expression tag
Gly 75-expression tag
Ser 76-expression tag
Gly 77-expression tag
BQ: 1 - 251 (UniProt: F1RI89)
PDBExternal DatabaseDetails
His 237Tyr 237conflict
Bl: 1 - 166 (UniProt: A0A0R4J8D6)
PDBExternal DatabaseDetails
Arg 59Lys 59conflict
AV: 1 - 68 (GenBank: 1208989970)
PDBExternal DatabaseDetails
C 69-insertion
C 70-insertion
A 71-insertion
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains62
Total formula weight1986432.8
Non-Polymers*Number of molecules226
Total formula weight7316.7
All*Total formula weight1993749.5
*Water molecules are not included.

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PDB entries from 2025-12-24

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