Q9H3P7: Golgi resident protein GCP60 (ACBD3)

Golgi resident protein GCP60 (ACBD3) is a 528-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9H3P7.

Gene
ACBD3
Organism
Homo sapiens
Length
528 residues
Mean pLDDT
78.8
Model
AF-Q9H3P7-F1 v6
Model created
1 Aug 2025
PDB structures
12

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Model confidence (pLDDT)

The mean pLDDT of this model is 78.8 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate60%
70 to 90Confident: backbone generally right11%
50 to 70Low: treat with caution5%
Below 50Very low: often disordered regions24%

What pLDDT means and how to read it

Function

Involved in the maintenance of Golgi structure by interacting with giantin, affecting protein transport between the endoplasmic reticulum and Golgi (PubMed:11590181). Involved in hormone-induced steroid biosynthesis in testicular Leydig cells (By similarity). Recruits PI4KB to the Golgi apparatus membrane; enhances the enzyme activity of PI4KB activity via its membrane recruitment thereby increasing the local concentration of the substrate in the vicinity of the kinase (PubMed:27009356)

Subunit structure

Homodimer (PubMed:23572552). Interacts with the C-terminal cytoplasmic domain of giantin/GOLGB1 (PubMed:11590181). Interacts with PBR and PKA regulatory subunit RI-alpha. Does not interact with PKA regulatory subunit RI-beta nor PKA regulatory subunit RII-alpha (By similarity). Interacts (via Q domain) with PI4KB (via N-terminus) (PubMed:22124328, PubMed:22258260, PubMed:23572552,…

Subcellular location

Golgi apparatus membrane, Mitochondrion

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
5LZ1X-ray2.0 ÅA=364-528
6HLNX-ray2.1 ÅA=364-528
6HMVX-ray2.24 ÅA=364-528
6HM8X-ray2.28 ÅA=364-528
5TDQX-ray2.49 ÅA=367-528
6HLVX-ray2.5 ÅA=364-528
5LZ6X-ray2.6 ÅA=364-528
6HLWX-ray2.73 ÅA/C=364-528
6HLTX-ray2.81 ÅA/C=364-528
5LZ3X-ray3.0 ÅA=364-528
2N72NMRA=241-308
2N73NMRA=241-308

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