Overview
| Uniprot ID | K9IVI1 |
| Protein Name | 2-oxoglutarate dehydrogenase complex component E1 |
| Gene Name | OGDH |
| Organism | Sus scrofa |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 1000 |
APATGNKKTHLTELQ |
| 389 |
PVVMGKTKAEQFYCG |
| 401 |
YCGDTEGKKVMSILL |
| 534 |
YKQIRKQKPVLQKYA |
| 564 |
EEISKYDKICEEAFA |
| 577 |
FARSKDEKILHIKHW |
| 647 |
KTRGELVKNRTVDWA |
| 74 |
ENPKSVHKSWDIFFR |
| 852 |
QILLPFRKPLIIFTP |
| 970 |
QGYYDYVKPRLRTTI |
| 981 |
RTTISRAKPVWYAGR |
Function
2-oxoglutarate dehydrogenase (E1o) component of the 2-oxoglutarate dehydrogenase complex (OGDHC) (By similarity). Participates in the first step, rate limiting for the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2) catalyzed by the whole OGDHC (By similarity). Catalyzes the irreversible decarboxylation of 2-oxoglutarate (alpha-ketoglutarate) via the thiamine diphosphate (ThDP) cofactor and subsequent transfer of the decarboxylated acyl intermediate on an oxidized dihydrolipoyl group that is covalently amidated to the E2 enzyme (dihydrolipoyllysine-residue succinyltransferase or DLST) (By similarity). Plays a key role in the Krebs (citric acid) cycle, which is a common pathway for oxidation of fuel molecules, including carbohydrates, fatty acids, and amino acids (By similarity). Can catalyze the decarboxylation of 2-oxoadipate in vitro, but at a much lower rate than 2-oxoglutarate (By similarity). Can also convert 2-keto-4-hydroxyglutarate (KHG) and CoA into malyl-CoA (PubMed:40108300, PubMed:6381479). Mainly active in the mitochondrion (By similarity). A fraction of the 2-oxoglutarate dehydrogenase complex also localizes in the nucleus and is required for lysine succinylation of histones: associates with KAT2A on chromatin and provides succinyl-CoA to histone succinyltransferase KAT2A (By similarity)
Protein Sequence
10
MFHLRTCAAK
20
LRPLTASQTA
30
KTLCPNRPAA
40
ARTLGQVRCY
50
SAPVAAEPFL
60
SGTSSNYVEE
70
MYYAWLENPK
80
SVHKSWDIFF
90
RNTNAGAPPG
100
TAYQSPLPLS
110
PGSLSAVARA
120
QPLVGAQPNV
130
DKLVEDHLAV
140
QSLIRAYQIR
150
GHHVAQLDPL
160
GILDADLDSS
170
VPADIISSTD
180
KLGFYGLDES
190
DLDKVFHLPT
200
TTFIGGQESA
210
LPLREIIRRL
220
EMAYCQHIGV
230
EFMFINDLEQ
240
CQWIRRKFET
250
PGVMQFTSEE
260
KRTLLARLVR
270
STRFEEFLQR
280
KWSSEKRFGL
290
EGCEVLIPAL
300
KTIIDKSSEN
310
GVDYVIMGMP
320
HRGRLNVLAN
330
VIRKELEQIF
340
CQFDSKLEAA
350
DEGSGDVKYH
360
LGMYHRRINR
370
VTDRNITLSL
380
VANPSHLEAA
390
DPVVMGKTKA
400
EQFYCGDTEG
410
KKVMSILLHG
420
DAAFAGQGIV
430
YETFHLSDLP
440
SYTTHGTVHV
450
VVNNQIGFTT
460
DPRMARSSPY
470
PTDVARVVNA
480
PIFHVNSDDP
490
EAVMYVCKVA
500
AEWRSTFHKD
510
VVVDLVCYRR
520
NGHNEMDEPM
530
FTQPLMYKQI
540
RKQKPVLQKY
550
AELLVSQGVV
560
NQPEYEEEIS
570
KYDKICEEAF
580
ARSKDEKILH
590
IKHWLDSPWP
600
GFFTLDGQPR
610
SMSCPSTGLT
620
EDVLTHIGNV
630
ASSVPVENFT
640
IHGGLSRILK
650
TRGELVKNRT
660
VDWALAEYMA
670
FGSLLKEGIH
680
IRLSGQDVER
690
GTFSHRHHVL
700
HDQNVDKRTC
710
IPMNHLWPNQ
720
APYTVCNSSL
730
SEYGVLGFEL
740
GFAMASPNAL
750
VLWEAQFGDF
760
HNTAQCIIDQ
770
FICPGQAKWV
780
RQNGIVLLLP
790
HGMEGMGPEH
800
SSARPERFLQ
810
MCNDDPDVLP
820
DLKEANFDIN
830
QLYDCNWVVV
840
NCSTPGNFFH
850
VLRRQILLPF
860
RKPLIIFTPK
870
SLLRHPEART
880
SFDEMLPGTH
890
FQRVIPEDGP
900
AAQNPENVKR
910
LLFCTGKVYY
920
DLTRERKARG
930
MAEQVAITRL
940
EQLSPFPFDL
950
LLQEVQKYPN
960
AELAWCQEEH
970
KNQGYYDYVK
980
PRLRTTISRA
990
KPVWYAGRDP
1000
AAAPATGNKK
1010
THLTELQRLL
1020
DTAFDLDAFK
NFS
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0005739 |
mitochondrion |
| Cellular Component |
GO:0005634 |
nucleus |
| Cellular Component |
GO:0045252 |
oxoglutarate dehydrogenase complex |
| Molecular Function |
GO:0046872 |
metal ion binding |
| Molecular Function |
GO:0004591 |
oxoglutarate dehydrogenase (succinyl-transferring) activity |
| Molecular Function |
GO:0030976 |
thiamine pyrophosphate binding |
| Biological Process |
GO:0006096 |
glycolytic process |
| Biological Process |
GO:0006099 |
tricarboxylic acid cycle |
Reference
[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.